Class StorageClient (2.19.0)

public class StorageClient implements BackgroundResource

Service Description: ## API Overview and Naming Syntax

The Cloud Storage gRPC API allows applications to read and write data through the abstractions of buckets and objects. For a description of these abstractions please see https://cloud.google.com/storage/docs.

Resources are named as follows: - Projects are referred to as they are defined by the Resource Manager API, using strings like projects/123456 or projects/my-string-id. - Buckets are named using string names of the form: projects/{project}/buckets/{bucket} For globally unique buckets, _ may be substituted for the project. - Objects are uniquely identified by their name along with the name of the bucket they belong to, as separate strings in this API. For example:

ReadObjectRequest { bucket: 'projects/_/buckets/my-bucket' object: 'my-object' } Note that object names can contain / characters, which are treated as any other character (no special directory semantics).

This class provides the ability to make remote calls to the backing service through method calls that map to API methods. Sample code to get started:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   BucketName name = BucketName.of("[PROJECT]", "[BUCKET]");
   storageClient.deleteBucket(name);
 }

Note: close() needs to be called on the StorageClient object to clean up resources such as threads. In the example above, try-with-resources is used, which automatically calls close().

The surface of this class includes several types of Java methods for each of the API's methods:

A "flattened" method. With this type of method, the fields of the request type have been converted into function parameters. It may be the case that not all fields are available as parameters, and not every API method will have a flattened method entry point.
A "request object" method. This type of method only takes one parameter, a request object, which must be constructed before the call. Not every API method will have a request object method.
A "callable" method. This type of method takes no parameters and returns an immutable API callable object, which can be used to initiate calls to the service.

See the individual methods for example code.

Many parameters require resource names to be formatted in a particular way. To assist with these names, this class includes a format method for each type of name, and additionally a parse method to extract the individual identifiers contained within names that are returned.

This class can be customized by passing in a custom instance of StorageSettings to create(). For example:

To customize credentials:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 StorageSettings storageSettings =
     StorageSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 StorageClient storageClient = StorageClient.create(storageSettings);

To customize the endpoint:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 StorageSettings storageSettings = StorageSettings.newBuilder().setEndpoint(myEndpoint).build();
 StorageClient storageClient = StorageClient.create(storageSettings);

Please refer to the GitHub repository's samples for more quickstart code snippets.

Inheritance

java.lang.Object > StorageClient

Implements

BackgroundResource

Inherited Members

Object.clone()

Object.equals(Object)

Object.finalize()

Object.getClass()

Object.hashCode()

Object.notify()

Object.notifyAll()

Object.toString()

Object.wait()

Object.wait(long)

Object.wait(long,int)

Static Methods

create()

public static final StorageClient create()

Constructs an instance of StorageClient with default settings.

Returns

Type	Description
`StorageClient`

Exceptions

Type	Description
`IOException`

create(StorageSettings settings)

public static final StorageClient create(StorageSettings settings)

Constructs an instance of StorageClient, using the given settings. The channels are created based on the settings passed in, or defaults for any settings that are not set.

Parameter

Name	Description
`settings`	`StorageSettings`

Returns

Type	Description
`StorageClient`

Exceptions

Type	Description
`IOException`

create(StorageStub stub)

public static final StorageClient create(StorageStub stub)

Constructs an instance of StorageClient, using the given stub for making calls. This is for advanced usage - prefer using create(StorageSettings).

Parameter

Name	Description
`stub`	`StorageStub`

Returns

Type	Description
`StorageClient`

Constructors

StorageClient(StorageSettings settings)

protected StorageClient(StorageSettings settings)

Constructs an instance of StorageClient, using the given settings. This is protected so that it is easy to make a subclass, but otherwise, the static factory methods should be preferred.

Parameter

Name	Description
`settings`	`StorageSettings`

StorageClient(StorageStub stub)

protected StorageClient(StorageStub stub)

Parameter

Name	Description
`stub`	`StorageStub`

Methods

awaitTermination(long duration, TimeUnit unit)

public boolean awaitTermination(long duration, TimeUnit unit)

Parameters

Name	Description
`duration`	`long`
`unit`	`TimeUnit`

Returns

Type	Description
`boolean`

Exceptions

Type	Description
`InterruptedException`

cancelResumableWrite(CancelResumableWriteRequest request)

public final CancelResumableWriteResponse cancelResumableWrite(CancelResumableWriteRequest request)

Cancels an in-progress resumable upload.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   CancelResumableWriteRequest request =
       CancelResumableWriteRequest.newBuilder().setUploadId("uploadId1563990780").build();
   CancelResumableWriteResponse response = storageClient.cancelResumableWrite(request);
 }

Parameter

Name	Description
`request`	`CancelResumableWriteRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`CancelResumableWriteResponse`

cancelResumableWrite(String uploadId)

public final CancelResumableWriteResponse cancelResumableWrite(String uploadId)

Cancels an in-progress resumable upload.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String uploadId = "uploadId1563990780";
   CancelResumableWriteResponse response = storageClient.cancelResumableWrite(uploadId);
 }

Parameter

Name	Description
`uploadId`	`String` Required. The upload_id of the resumable upload to cancel. This should be copied from the `upload_id` field of `StartResumableWriteResponse`.

Returns

Type	Description
`CancelResumableWriteResponse`

cancelResumableWriteCallable()

public final UnaryCallable<CancelResumableWriteRequest,CancelResumableWriteResponse> cancelResumableWriteCallable()

Cancels an in-progress resumable upload.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   CancelResumableWriteRequest request =
       CancelResumableWriteRequest.newBuilder().setUploadId("uploadId1563990780").build();
   ApiFuture<CancelResumableWriteResponse> future =
       storageClient.cancelResumableWriteCallable().futureCall(request);
   // Do something.
   CancelResumableWriteResponse response = future.get();
 }

Returns

Type	Description
`UnaryCallable<CancelResumableWriteRequest,CancelResumableWriteResponse>`

close()

public final void close()

composeObject(ComposeObjectRequest request)

public final Object composeObject(ComposeObjectRequest request)

Concatenates a list of existing objects into a new object in the same bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ComposeObjectRequest request =
       ComposeObjectRequest.newBuilder()
           .setDestination(Object.newBuilder().build())
           .addAllSourceObjects(new ArrayList<ComposeObjectRequest.SourceObject>())
           .setDestinationPredefinedAcl("destinationPredefinedAcl1111125814")
           .setIfGenerationMatch(-1086241088)
           .setIfMetagenerationMatch(1043427781)
           .setKmsKey(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setObjectChecksums(ObjectChecksums.newBuilder().build())
           .build();
   Object response = storageClient.composeObject(request);
 }

Parameter

Name	Description
`request`	`ComposeObjectRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`Object`

composeObjectCallable()

public final UnaryCallable<ComposeObjectRequest,Object> composeObjectCallable()

Concatenates a list of existing objects into a new object in the same bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ComposeObjectRequest request =
       ComposeObjectRequest.newBuilder()
           .setDestination(Object.newBuilder().build())
           .addAllSourceObjects(new ArrayList<ComposeObjectRequest.SourceObject>())
           .setDestinationPredefinedAcl("destinationPredefinedAcl1111125814")
           .setIfGenerationMatch(-1086241088)
           .setIfMetagenerationMatch(1043427781)
           .setKmsKey(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setObjectChecksums(ObjectChecksums.newBuilder().build())
           .build();
   ApiFuture<Object> future = storageClient.composeObjectCallable().futureCall(request);
   // Do something.
   Object response = future.get();
 }

Returns

Type	Description
`UnaryCallable<ComposeObjectRequest,Object>`

createBucket(CreateBucketRequest request)

public final Bucket createBucket(CreateBucketRequest request)

Creates a new bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   CreateBucketRequest request =
       CreateBucketRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setBucket(Bucket.newBuilder().build())
           .setBucketId("bucketId-1603305307")
           .setPredefinedAcl("predefinedAcl1207041188")
           .setPredefinedDefaultObjectAcl("predefinedDefaultObjectAcl2109168048")
           .build();
   Bucket response = storageClient.createBucket(request);
 }

Parameter

Name	Description
`request`	`CreateBucketRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`Bucket`

createBucket(ProjectName parent, Bucket bucket, String bucketId)

public final Bucket createBucket(ProjectName parent, Bucket bucket, String bucketId)

Creates a new bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ProjectName parent = ProjectName.of("[PROJECT]");
   Bucket bucket = Bucket.newBuilder().build();
   String bucketId = "bucketId-1603305307";
   Bucket response = storageClient.createBucket(parent, bucket, bucketId);
 }

Parameters

Name	Description
`parent`	`ProjectName` Required. The project to which this bucket will belong.
`bucket`	`Bucket` Properties of the new bucket being inserted. The project and name of the bucket are specified in the parent and bucket_id fields, respectively. Populating those fields in `bucket` will result in an error.
`bucketId`	`String` Required. The ID to use for this bucket, which will become the final component of the bucket's resource name. For example, the value `foo` might result in a bucket with the name `projects/123456/buckets/foo`.

Returns

Type	Description
`Bucket`

createBucket(String parent, Bucket bucket, String bucketId)

public final Bucket createBucket(String parent, Bucket bucket, String bucketId)

Creates a new bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String parent = ProjectName.of("[PROJECT]").toString();
   Bucket bucket = Bucket.newBuilder().build();
   String bucketId = "bucketId-1603305307";
   Bucket response = storageClient.createBucket(parent, bucket, bucketId);
 }

Parameters

Name	Description
`parent`	`String` Required. The project to which this bucket will belong.
`bucket`	`Bucket` Properties of the new bucket being inserted. The project and name of the bucket are specified in the parent and bucket_id fields, respectively. Populating those fields in `bucket` will result in an error.
`bucketId`	`String` Required. The ID to use for this bucket, which will become the final component of the bucket's resource name. For example, the value `foo` might result in a bucket with the name `projects/123456/buckets/foo`.

Returns

Type	Description
`Bucket`

createBucketCallable()

public final UnaryCallable<CreateBucketRequest,Bucket> createBucketCallable()

Creates a new bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   CreateBucketRequest request =
       CreateBucketRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setBucket(Bucket.newBuilder().build())
           .setBucketId("bucketId-1603305307")
           .setPredefinedAcl("predefinedAcl1207041188")
           .setPredefinedDefaultObjectAcl("predefinedDefaultObjectAcl2109168048")
           .build();
   ApiFuture<Bucket> future = storageClient.createBucketCallable().futureCall(request);
   // Do something.
   Bucket response = future.get();
 }

Returns

Type	Description
`UnaryCallable<CreateBucketRequest,Bucket>`

createHmacKey(CreateHmacKeyRequest request)

public final CreateHmacKeyResponse createHmacKey(CreateHmacKeyRequest request)

Creates a new HMAC key for the given service account.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   CreateHmacKeyRequest request =
       CreateHmacKeyRequest.newBuilder()
           .setProject(ProjectName.of("[PROJECT]").toString())
           .setServiceAccountEmail("serviceAccountEmail1825953988")
           .build();
   CreateHmacKeyResponse response = storageClient.createHmacKey(request);
 }

Parameter

Name	Description
`request`	`CreateHmacKeyRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`CreateHmacKeyResponse`

createHmacKey(ProjectName project, String serviceAccountEmail)

public final CreateHmacKeyResponse createHmacKey(ProjectName project, String serviceAccountEmail)

Creates a new HMAC key for the given service account.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ProjectName project = ProjectName.of("[PROJECT]");
   String serviceAccountEmail = "serviceAccountEmail1825953988";
   CreateHmacKeyResponse response = storageClient.createHmacKey(project, serviceAccountEmail);
 }

Parameters

Name	Description
`project`	`ProjectName` Required. The project that the HMAC-owning service account lives in, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.
`serviceAccountEmail`	`String` Required. The service account to create the HMAC for.

Returns

Type	Description
`CreateHmacKeyResponse`

createHmacKey(String project, String serviceAccountEmail)

public final CreateHmacKeyResponse createHmacKey(String project, String serviceAccountEmail)

Creates a new HMAC key for the given service account.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String project = ProjectName.of("[PROJECT]").toString();
   String serviceAccountEmail = "serviceAccountEmail1825953988";
   CreateHmacKeyResponse response = storageClient.createHmacKey(project, serviceAccountEmail);
 }

Parameters

Name	Description
`project`	`String` Required. The project that the HMAC-owning service account lives in, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.
`serviceAccountEmail`	`String` Required. The service account to create the HMAC for.

Returns

Type	Description
`CreateHmacKeyResponse`

createHmacKeyCallable()

public final UnaryCallable<CreateHmacKeyRequest,CreateHmacKeyResponse> createHmacKeyCallable()

Creates a new HMAC key for the given service account.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   CreateHmacKeyRequest request =
       CreateHmacKeyRequest.newBuilder()
           .setProject(ProjectName.of("[PROJECT]").toString())
           .setServiceAccountEmail("serviceAccountEmail1825953988")
           .build();
   ApiFuture<CreateHmacKeyResponse> future =
       storageClient.createHmacKeyCallable().futureCall(request);
   // Do something.
   CreateHmacKeyResponse response = future.get();
 }

Returns

Type	Description
`UnaryCallable<CreateHmacKeyRequest,CreateHmacKeyResponse>`

createNotificationConfig(CreateNotificationConfigRequest request)

public final NotificationConfig createNotificationConfig(CreateNotificationConfigRequest request)

Creates a NotificationConfig for a given bucket. These NotificationConfigs, when triggered, publish messages to the specified Pub/Sub topics. See https://cloud.google.com/storage/docs/pubsub-notifications.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   CreateNotificationConfigRequest request =
       CreateNotificationConfigRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setNotificationConfig(NotificationConfig.newBuilder().build())
           .build();
   NotificationConfig response = storageClient.createNotificationConfig(request);
 }

Parameter

Name	Description
`request`	`CreateNotificationConfigRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`NotificationConfig`

createNotificationConfig(ProjectName parent, NotificationConfig notificationConfig)

public final NotificationConfig createNotificationConfig(ProjectName parent, NotificationConfig notificationConfig)

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ProjectName parent = ProjectName.of("[PROJECT]");
   NotificationConfig notificationConfig = NotificationConfig.newBuilder().build();
   NotificationConfig response =
       storageClient.createNotificationConfig(parent, notificationConfig);
 }

Parameters

Name	Description
`parent`	`ProjectName` Required. The bucket to which this NotificationConfig belongs.
`notificationConfig`	`NotificationConfig` Required. Properties of the NotificationConfig to be inserted.

Returns

Type	Description
`NotificationConfig`

createNotificationConfig(String parent, NotificationConfig notificationConfig)

public final NotificationConfig createNotificationConfig(String parent, NotificationConfig notificationConfig)

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String parent = ProjectName.of("[PROJECT]").toString();
   NotificationConfig notificationConfig = NotificationConfig.newBuilder().build();
   NotificationConfig response =
       storageClient.createNotificationConfig(parent, notificationConfig);
 }

Parameters

Name	Description
`parent`	`String` Required. The bucket to which this NotificationConfig belongs.
`notificationConfig`	`NotificationConfig` Required. Properties of the NotificationConfig to be inserted.

Returns

Type	Description
`NotificationConfig`

createNotificationConfigCallable()

public final UnaryCallable<CreateNotificationConfigRequest,NotificationConfig> createNotificationConfigCallable()

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   CreateNotificationConfigRequest request =
       CreateNotificationConfigRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setNotificationConfig(NotificationConfig.newBuilder().build())
           .build();
   ApiFuture<NotificationConfig> future =
       storageClient.createNotificationConfigCallable().futureCall(request);
   // Do something.
   NotificationConfig response = future.get();
 }

Returns

Type	Description
`UnaryCallable<CreateNotificationConfigRequest,NotificationConfig>`

deleteBucket(BucketName name)

public final void deleteBucket(BucketName name)

Permanently deletes an empty bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   BucketName name = BucketName.of("[PROJECT]", "[BUCKET]");
   storageClient.deleteBucket(name);
 }

Parameter

Name	Description
`name`	`BucketName` Required. Name of a bucket to delete.

deleteBucket(DeleteBucketRequest request)

public final void deleteBucket(DeleteBucketRequest request)

Permanently deletes an empty bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   DeleteBucketRequest request =
       DeleteBucketRequest.newBuilder()
           .setName(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .build();
   storageClient.deleteBucket(request);
 }

Parameter

Name	Description
`request`	`DeleteBucketRequest` The request object containing all of the parameters for the API call.

deleteBucket(String name)

public final void deleteBucket(String name)

Permanently deletes an empty bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String name = BucketName.of("[PROJECT]", "[BUCKET]").toString();
   storageClient.deleteBucket(name);
 }

Parameter

Name	Description
`name`	`String` Required. Name of a bucket to delete.

deleteBucketCallable()

public final UnaryCallable<DeleteBucketRequest,Empty> deleteBucketCallable()

Permanently deletes an empty bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   DeleteBucketRequest request =
       DeleteBucketRequest.newBuilder()
           .setName(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .build();
   ApiFuture<Empty> future = storageClient.deleteBucketCallable().futureCall(request);
   // Do something.
   future.get();
 }

Returns

Type	Description
`UnaryCallable<DeleteBucketRequest,Empty>`

deleteHmacKey(DeleteHmacKeyRequest request)

public final void deleteHmacKey(DeleteHmacKeyRequest request)

Deletes a given HMAC key. Key must be in an INACTIVE state.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   DeleteHmacKeyRequest request =
       DeleteHmacKeyRequest.newBuilder()
           .setAccessId("accessId-2146437729")
           .setProject(ProjectName.of("[PROJECT]").toString())
           .build();
   storageClient.deleteHmacKey(request);
 }

Parameter

Name	Description
`request`	`DeleteHmacKeyRequest` The request object containing all of the parameters for the API call.

deleteHmacKey(String accessId, ProjectName project)

public final void deleteHmacKey(String accessId, ProjectName project)

Deletes a given HMAC key. Key must be in an INACTIVE state.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String accessId = "accessId-2146437729";
   ProjectName project = ProjectName.of("[PROJECT]");
   storageClient.deleteHmacKey(accessId, project);
 }

Parameters

Name	Description
`accessId`	`String` Required. The identifying key for the HMAC to delete.
`project`	`ProjectName` Required. The project that owns the HMAC key, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.

deleteHmacKey(String accessId, String project)

public final void deleteHmacKey(String accessId, String project)

Deletes a given HMAC key. Key must be in an INACTIVE state.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String accessId = "accessId-2146437729";
   String project = ProjectName.of("[PROJECT]").toString();
   storageClient.deleteHmacKey(accessId, project);
 }

Parameters

Name	Description
`accessId`	`String` Required. The identifying key for the HMAC to delete.
`project`	`String` Required. The project that owns the HMAC key, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.

deleteHmacKeyCallable()

public final UnaryCallable<DeleteHmacKeyRequest,Empty> deleteHmacKeyCallable()

Deletes a given HMAC key. Key must be in an INACTIVE state.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   DeleteHmacKeyRequest request =
       DeleteHmacKeyRequest.newBuilder()
           .setAccessId("accessId-2146437729")
           .setProject(ProjectName.of("[PROJECT]").toString())
           .build();
   ApiFuture<Empty> future = storageClient.deleteHmacKeyCallable().futureCall(request);
   // Do something.
   future.get();
 }

Returns

Type	Description
`UnaryCallable<DeleteHmacKeyRequest,Empty>`

deleteNotificationConfig(DeleteNotificationConfigRequest request)

public final void deleteNotificationConfig(DeleteNotificationConfigRequest request)

Permanently deletes a NotificationConfig.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   DeleteNotificationConfigRequest request =
       DeleteNotificationConfigRequest.newBuilder()
           .setName(
               NotificationConfigName.of("[PROJECT]", "[BUCKET]", "[NOTIFICATION_CONFIG]")
                   .toString())
           .build();
   storageClient.deleteNotificationConfig(request);
 }

Parameter

Name	Description
`request`	`DeleteNotificationConfigRequest` The request object containing all of the parameters for the API call.

deleteNotificationConfig(NotificationConfigName name)

public final void deleteNotificationConfig(NotificationConfigName name)

Permanently deletes a NotificationConfig.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   NotificationConfigName name =
       NotificationConfigName.of("[PROJECT]", "[BUCKET]", "[NOTIFICATION_CONFIG]");
   storageClient.deleteNotificationConfig(name);
 }

Parameter

Name	Description
`name`	`NotificationConfigName` Required. The parent bucket of the NotificationConfig.

deleteNotificationConfig(String name)

public final void deleteNotificationConfig(String name)

Permanently deletes a NotificationConfig.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String name =
       NotificationConfigName.of("[PROJECT]", "[BUCKET]", "[NOTIFICATION_CONFIG]").toString();
   storageClient.deleteNotificationConfig(name);
 }

Parameter

Name	Description
`name`	`String` Required. The parent bucket of the NotificationConfig.

deleteNotificationConfigCallable()

public final UnaryCallable<DeleteNotificationConfigRequest,Empty> deleteNotificationConfigCallable()

Permanently deletes a NotificationConfig.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   DeleteNotificationConfigRequest request =
       DeleteNotificationConfigRequest.newBuilder()
           .setName(
               NotificationConfigName.of("[PROJECT]", "[BUCKET]", "[NOTIFICATION_CONFIG]")
                   .toString())
           .build();
   ApiFuture<Empty> future =
       storageClient.deleteNotificationConfigCallable().futureCall(request);
   // Do something.
   future.get();
 }

Returns

Type	Description
`UnaryCallable<DeleteNotificationConfigRequest,Empty>`

deleteObject(DeleteObjectRequest request)

public final void deleteObject(DeleteObjectRequest request)

Deletes an object and its metadata. Deletions are permanent if versioning is not enabled for the bucket, or if the generation parameter is used.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   DeleteObjectRequest request =
       DeleteObjectRequest.newBuilder()
           .setBucket("bucket-1378203158")
           .setObject("object-1023368385")
           .setGeneration(305703192)
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .build();
   storageClient.deleteObject(request);
 }

Parameter

Name	Description
`request`	`DeleteObjectRequest` The request object containing all of the parameters for the API call.

deleteObject(String bucket, String object)

public final void deleteObject(String bucket, String object)

Deletes an object and its metadata. Deletions are permanent if versioning is not enabled for the bucket, or if the generation parameter is used.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String bucket = "bucket-1378203158";
   String object = "object-1023368385";
   storageClient.deleteObject(bucket, object);
 }

Parameters

Name	Description
`bucket`	`String` Required. Name of the bucket in which the object resides.
`object`	`String` Required. The name of the finalized object to delete. Note: If you want to delete an unfinalized resumable upload please use `CancelResumableWrite`.

deleteObject(String bucket, String object, long generation)

public final void deleteObject(String bucket, String object, long generation)

Deletes an object and its metadata. Deletions are permanent if versioning is not enabled for the bucket, or if the generation parameter is used.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String bucket = "bucket-1378203158";
   String object = "object-1023368385";
   long generation = 305703192;
   storageClient.deleteObject(bucket, object, generation);
 }

Parameters

Name	Description
`bucket`	`String` Required. Name of the bucket in which the object resides.
`object`	`String` Required. The name of the finalized object to delete. Note: If you want to delete an unfinalized resumable upload please use `CancelResumableWrite`.
`generation`	`long` If present, permanently deletes a specific revision of this object (as opposed to the latest version, the default).

deleteObjectCallable()

public final UnaryCallable<DeleteObjectRequest,Empty> deleteObjectCallable()

Deletes an object and its metadata. Deletions are permanent if versioning is not enabled for the bucket, or if the generation parameter is used.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   DeleteObjectRequest request =
       DeleteObjectRequest.newBuilder()
           .setBucket("bucket-1378203158")
           .setObject("object-1023368385")
           .setGeneration(305703192)
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .build();
   ApiFuture<Empty> future = storageClient.deleteObjectCallable().futureCall(request);
   // Do something.
   future.get();
 }

Returns

Type	Description
`UnaryCallable<DeleteObjectRequest,Empty>`

getBucket(BucketName name)

public final Bucket getBucket(BucketName name)

Returns metadata for the specified bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   BucketName name = BucketName.of("[PROJECT]", "[BUCKET]");
   Bucket response = storageClient.getBucket(name);
 }

Parameter

Name	Description
`name`	`BucketName` Required. Name of a bucket.

Returns

Type	Description
`Bucket`

getBucket(GetBucketRequest request)

public final Bucket getBucket(GetBucketRequest request)

Returns metadata for the specified bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetBucketRequest request =
       GetBucketRequest.newBuilder()
           .setName(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   Bucket response = storageClient.getBucket(request);
 }

Parameter

Name	Description
`request`	`GetBucketRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`Bucket`

getBucket(String name)

public final Bucket getBucket(String name)

Returns metadata for the specified bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String name = BucketName.of("[PROJECT]", "[BUCKET]").toString();
   Bucket response = storageClient.getBucket(name);
 }

Parameter

Name	Description
`name`	`String` Required. Name of a bucket.

Returns

Type	Description
`Bucket`

getBucketCallable()

public final UnaryCallable<GetBucketRequest,Bucket> getBucketCallable()

Returns metadata for the specified bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetBucketRequest request =
       GetBucketRequest.newBuilder()
           .setName(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Bucket> future = storageClient.getBucketCallable().futureCall(request);
   // Do something.
   Bucket response = future.get();
 }

Returns

Type	Description
`UnaryCallable<GetBucketRequest,Bucket>`

getHmacKey(GetHmacKeyRequest request)

public final HmacKeyMetadata getHmacKey(GetHmacKeyRequest request)

Gets an existing HMAC key metadata for the given id.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetHmacKeyRequest request =
       GetHmacKeyRequest.newBuilder()
           .setAccessId("accessId-2146437729")
           .setProject(ProjectName.of("[PROJECT]").toString())
           .build();
   HmacKeyMetadata response = storageClient.getHmacKey(request);
 }

Parameter

Name	Description
`request`	`GetHmacKeyRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`HmacKeyMetadata`

getHmacKey(String accessId, ProjectName project)

public final HmacKeyMetadata getHmacKey(String accessId, ProjectName project)

Gets an existing HMAC key metadata for the given id.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String accessId = "accessId-2146437729";
   ProjectName project = ProjectName.of("[PROJECT]");
   HmacKeyMetadata response = storageClient.getHmacKey(accessId, project);
 }

Parameters

Name	Description
`accessId`	`String` Required. The identifying key for the HMAC to delete.
`project`	`ProjectName` Required. The project the HMAC key lies in, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.

Returns

Type	Description
`HmacKeyMetadata`

getHmacKey(String accessId, String project)

public final HmacKeyMetadata getHmacKey(String accessId, String project)

Gets an existing HMAC key metadata for the given id.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String accessId = "accessId-2146437729";
   String project = ProjectName.of("[PROJECT]").toString();
   HmacKeyMetadata response = storageClient.getHmacKey(accessId, project);
 }

Parameters

Name	Description
`accessId`	`String` Required. The identifying key for the HMAC to delete.
`project`	`String` Required. The project the HMAC key lies in, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.

Returns

Type	Description
`HmacKeyMetadata`

getHmacKeyCallable()

public final UnaryCallable<GetHmacKeyRequest,HmacKeyMetadata> getHmacKeyCallable()

Gets an existing HMAC key metadata for the given id.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetHmacKeyRequest request =
       GetHmacKeyRequest.newBuilder()
           .setAccessId("accessId-2146437729")
           .setProject(ProjectName.of("[PROJECT]").toString())
           .build();
   ApiFuture<HmacKeyMetadata> future = storageClient.getHmacKeyCallable().futureCall(request);
   // Do something.
   HmacKeyMetadata response = future.get();
 }

Returns

Type	Description
`UnaryCallable<GetHmacKeyRequest,HmacKeyMetadata>`

getIamPolicy(ResourceName resource)

public final Policy getIamPolicy(ResourceName resource)

Gets the IAM policy for a specified bucket or object. The resource field in the request should be projects//buckets/<bucket_name> for a bucket or projects//buckets/<bucket_name>/objects/<object_name> for an object.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ResourceName resource =
       CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]");
   Policy response = storageClient.getIamPolicy(resource);
 }

Parameter

Name	Description
`resource`	`com.google.api.resourcenames.ResourceName` REQUIRED: The resource for which the policy is being requested. See the operation documentation for the appropriate value for this field.

Returns

Type	Description
`com.google.iam.v1.Policy`

getIamPolicy(GetIamPolicyRequest request)

public final Policy getIamPolicy(GetIamPolicyRequest request)

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetIamPolicyRequest request =
       GetIamPolicyRequest.newBuilder()
           .setResource(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .setOptions(GetPolicyOptions.newBuilder().build())
           .build();
   Policy response = storageClient.getIamPolicy(request);
 }

Parameter

Name	Description
`request`	`com.google.iam.v1.GetIamPolicyRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`com.google.iam.v1.Policy`

getIamPolicy(String resource)

public final Policy getIamPolicy(String resource)

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String resource =
       CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]").toString();
   Policy response = storageClient.getIamPolicy(resource);
 }

Parameter

Name	Description
`resource`	`String` REQUIRED: The resource for which the policy is being requested. See the operation documentation for the appropriate value for this field.

Returns

Type	Description
`com.google.iam.v1.Policy`

getIamPolicyCallable()

public final UnaryCallable<GetIamPolicyRequest,Policy> getIamPolicyCallable()

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetIamPolicyRequest request =
       GetIamPolicyRequest.newBuilder()
           .setResource(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .setOptions(GetPolicyOptions.newBuilder().build())
           .build();
   ApiFuture<Policy> future = storageClient.getIamPolicyCallable().futureCall(request);
   // Do something.
   Policy response = future.get();
 }

Returns

Type	Description
`UnaryCallable<com.google.iam.v1.GetIamPolicyRequest,com.google.iam.v1.Policy>`

getNotificationConfig(BucketName name)

public final NotificationConfig getNotificationConfig(BucketName name)

View a NotificationConfig.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   BucketName name = BucketName.of("[PROJECT]", "[BUCKET]");
   NotificationConfig response = storageClient.getNotificationConfig(name);
 }

Parameter

Name	Description
`name`	`BucketName` Required. The parent bucket of the NotificationConfig. Format: `projects/{project}/buckets/{bucket}/notificationConfigs/{notificationConfig}`

Returns

Type	Description
`NotificationConfig`

getNotificationConfig(GetNotificationConfigRequest request)

public final NotificationConfig getNotificationConfig(GetNotificationConfigRequest request)

View a NotificationConfig.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetNotificationConfigRequest request =
       GetNotificationConfigRequest.newBuilder()
           .setName(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .build();
   NotificationConfig response = storageClient.getNotificationConfig(request);
 }

Parameter

Name	Description
`request`	`GetNotificationConfigRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`NotificationConfig`

getNotificationConfig(String name)

public final NotificationConfig getNotificationConfig(String name)

View a NotificationConfig.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String name = BucketName.of("[PROJECT]", "[BUCKET]").toString();
   NotificationConfig response = storageClient.getNotificationConfig(name);
 }

Parameter

Name	Description
`name`	`String` Required. The parent bucket of the NotificationConfig. Format: `projects/{project}/buckets/{bucket}/notificationConfigs/{notificationConfig}`

Returns

Type	Description
`NotificationConfig`

getNotificationConfigCallable()

public final UnaryCallable<GetNotificationConfigRequest,NotificationConfig> getNotificationConfigCallable()

View a NotificationConfig.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetNotificationConfigRequest request =
       GetNotificationConfigRequest.newBuilder()
           .setName(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .build();
   ApiFuture<NotificationConfig> future =
       storageClient.getNotificationConfigCallable().futureCall(request);
   // Do something.
   NotificationConfig response = future.get();
 }

Returns

Type	Description
`UnaryCallable<GetNotificationConfigRequest,NotificationConfig>`

getObject(GetObjectRequest request)

public final Object getObject(GetObjectRequest request)

Retrieves an object's metadata.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetObjectRequest request =
       GetObjectRequest.newBuilder()
           .setBucket("bucket-1378203158")
           .setObject("object-1023368385")
           .setGeneration(305703192)
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   Object response = storageClient.getObject(request);
 }

Parameter

Name	Description
`request`	`GetObjectRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`Object`

getObject(String bucket, String object)

public final Object getObject(String bucket, String object)

Retrieves an object's metadata.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String bucket = "bucket-1378203158";
   String object = "object-1023368385";
   Object response = storageClient.getObject(bucket, object);
 }

Parameters

Name	Description
`bucket`	`String` Required. Name of the bucket in which the object resides.
`object`	`String` Required. Name of the object.

Returns

Type	Description
`Object`

getObject(String bucket, String object, long generation)

public final Object getObject(String bucket, String object, long generation)

Retrieves an object's metadata.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String bucket = "bucket-1378203158";
   String object = "object-1023368385";
   long generation = 305703192;
   Object response = storageClient.getObject(bucket, object, generation);
 }

Parameters

Name	Description
`bucket`	`String` Required. Name of the bucket in which the object resides.
`object`	`String` Required. Name of the object.
`generation`	`long` If present, selects a specific revision of this object (as opposed to the latest version, the default).

Returns

Type	Description
`Object`

getObjectCallable()

public final UnaryCallable<GetObjectRequest,Object> getObjectCallable()

Retrieves an object's metadata.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetObjectRequest request =
       GetObjectRequest.newBuilder()
           .setBucket("bucket-1378203158")
           .setObject("object-1023368385")
           .setGeneration(305703192)
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Object> future = storageClient.getObjectCallable().futureCall(request);
   // Do something.
   Object response = future.get();
 }

Returns

Type	Description
`UnaryCallable<GetObjectRequest,Object>`

getServiceAccount(GetServiceAccountRequest request)

public final ServiceAccount getServiceAccount(GetServiceAccountRequest request)

Retrieves the name of a project's Google Cloud Storage service account.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetServiceAccountRequest request =
       GetServiceAccountRequest.newBuilder()
           .setProject(ProjectName.of("[PROJECT]").toString())
           .build();
   ServiceAccount response = storageClient.getServiceAccount(request);
 }

Parameter

Name	Description
`request`	`GetServiceAccountRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`ServiceAccount`

getServiceAccount(ProjectName project)

public final ServiceAccount getServiceAccount(ProjectName project)

Retrieves the name of a project's Google Cloud Storage service account.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ProjectName project = ProjectName.of("[PROJECT]");
   ServiceAccount response = storageClient.getServiceAccount(project);
 }

Parameter

Name	Description
`project`	`ProjectName` Required. Project ID, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.

Returns

Type	Description
`ServiceAccount`

getServiceAccount(String project)

public final ServiceAccount getServiceAccount(String project)

Retrieves the name of a project's Google Cloud Storage service account.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String project = ProjectName.of("[PROJECT]").toString();
   ServiceAccount response = storageClient.getServiceAccount(project);
 }

Parameter

Name	Description
`project`	`String` Required. Project ID, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.

Returns

Type	Description
`ServiceAccount`

getServiceAccountCallable()

public final UnaryCallable<GetServiceAccountRequest,ServiceAccount> getServiceAccountCallable()

Retrieves the name of a project's Google Cloud Storage service account.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   GetServiceAccountRequest request =
       GetServiceAccountRequest.newBuilder()
           .setProject(ProjectName.of("[PROJECT]").toString())
           .build();
   ApiFuture<ServiceAccount> future =
       storageClient.getServiceAccountCallable().futureCall(request);
   // Do something.
   ServiceAccount response = future.get();
 }

Returns

Type	Description
`UnaryCallable<GetServiceAccountRequest,ServiceAccount>`

getSettings()

public final StorageSettings getSettings()

Returns

Type	Description
`StorageSettings`

getStub()

public StorageStub getStub()

Returns

Type	Description
`StorageStub`

isShutdown()

public boolean isShutdown()

Returns

Type	Description
`boolean`

isTerminated()

public boolean isTerminated()

Returns

Type	Description
`boolean`

listBuckets(ListBucketsRequest request)

public final StorageClient.ListBucketsPagedResponse listBuckets(ListBucketsRequest request)

Retrieves a list of buckets for a given project.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListBucketsRequest request =
       ListBucketsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setPrefix("prefix-980110702")
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   for (Bucket element : storageClient.listBuckets(request).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`request`	`ListBucketsRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`StorageClient.ListBucketsPagedResponse`

listBuckets(ProjectName parent)

public final StorageClient.ListBucketsPagedResponse listBuckets(ProjectName parent)

Retrieves a list of buckets for a given project.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ProjectName parent = ProjectName.of("[PROJECT]");
   for (Bucket element : storageClient.listBuckets(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`parent`	`ProjectName` Required. The project whose buckets we are listing.

Returns

Type	Description
`StorageClient.ListBucketsPagedResponse`

listBuckets(String parent)

public final StorageClient.ListBucketsPagedResponse listBuckets(String parent)

Retrieves a list of buckets for a given project.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String parent = ProjectName.of("[PROJECT]").toString();
   for (Bucket element : storageClient.listBuckets(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`parent`	`String` Required. The project whose buckets we are listing.

Returns

Type	Description
`StorageClient.ListBucketsPagedResponse`

listBucketsCallable()

public final UnaryCallable<ListBucketsRequest,ListBucketsResponse> listBucketsCallable()

Retrieves a list of buckets for a given project.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListBucketsRequest request =
       ListBucketsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setPrefix("prefix-980110702")
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   while (true) {
     ListBucketsResponse response = storageClient.listBucketsCallable().call(request);
     for (Bucket element : response.getBucketsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }

Returns

Type	Description
`UnaryCallable<ListBucketsRequest,ListBucketsResponse>`

listBucketsPagedCallable()

public final UnaryCallable<ListBucketsRequest,StorageClient.ListBucketsPagedResponse> listBucketsPagedCallable()

Retrieves a list of buckets for a given project.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListBucketsRequest request =
       ListBucketsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setPrefix("prefix-980110702")
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Bucket> future = storageClient.listBucketsPagedCallable().futureCall(request);
   // Do something.
   for (Bucket element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }

Returns

Type	Description
`UnaryCallable<ListBucketsRequest,ListBucketsPagedResponse>`

listHmacKeys(ListHmacKeysRequest request)

public final StorageClient.ListHmacKeysPagedResponse listHmacKeys(ListHmacKeysRequest request)

Lists HMAC keys under a given project with the additional filters provided.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListHmacKeysRequest request =
       ListHmacKeysRequest.newBuilder()
           .setProject(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setServiceAccountEmail("serviceAccountEmail1825953988")
           .setShowDeletedKeys(true)
           .build();
   for (HmacKeyMetadata element : storageClient.listHmacKeys(request).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`request`	`ListHmacKeysRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`StorageClient.ListHmacKeysPagedResponse`

listHmacKeys(ProjectName project)

public final StorageClient.ListHmacKeysPagedResponse listHmacKeys(ProjectName project)

Lists HMAC keys under a given project with the additional filters provided.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ProjectName project = ProjectName.of("[PROJECT]");
   for (HmacKeyMetadata element : storageClient.listHmacKeys(project).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`project`	`ProjectName` Required. The project to list HMAC keys for, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.

Returns

Type	Description
`StorageClient.ListHmacKeysPagedResponse`

listHmacKeys(String project)

public final StorageClient.ListHmacKeysPagedResponse listHmacKeys(String project)

Lists HMAC keys under a given project with the additional filters provided.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String project = ProjectName.of("[PROJECT]").toString();
   for (HmacKeyMetadata element : storageClient.listHmacKeys(project).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`project`	`String` Required. The project to list HMAC keys for, in the format of "projects/<projectIdentifier>". <projectIdentifier> can be the project ID or project number.

Returns

Type	Description
`StorageClient.ListHmacKeysPagedResponse`

listHmacKeysCallable()

public final UnaryCallable<ListHmacKeysRequest,ListHmacKeysResponse> listHmacKeysCallable()

Lists HMAC keys under a given project with the additional filters provided.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListHmacKeysRequest request =
       ListHmacKeysRequest.newBuilder()
           .setProject(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setServiceAccountEmail("serviceAccountEmail1825953988")
           .setShowDeletedKeys(true)
           .build();
   while (true) {
     ListHmacKeysResponse response = storageClient.listHmacKeysCallable().call(request);
     for (HmacKeyMetadata element : response.getHmacKeysList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }

Returns

Type	Description
`UnaryCallable<ListHmacKeysRequest,ListHmacKeysResponse>`

listHmacKeysPagedCallable()

public final UnaryCallable<ListHmacKeysRequest,StorageClient.ListHmacKeysPagedResponse> listHmacKeysPagedCallable()

Lists HMAC keys under a given project with the additional filters provided.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListHmacKeysRequest request =
       ListHmacKeysRequest.newBuilder()
           .setProject(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setServiceAccountEmail("serviceAccountEmail1825953988")
           .setShowDeletedKeys(true)
           .build();
   ApiFuture<HmacKeyMetadata> future =
       storageClient.listHmacKeysPagedCallable().futureCall(request);
   // Do something.
   for (HmacKeyMetadata element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }

Returns

Type	Description
`UnaryCallable<ListHmacKeysRequest,ListHmacKeysPagedResponse>`

listNotificationConfigs(ListNotificationConfigsRequest request)

public final StorageClient.ListNotificationConfigsPagedResponse listNotificationConfigs(ListNotificationConfigsRequest request)

Retrieves a list of NotificationConfigs for a given bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListNotificationConfigsRequest request =
       ListNotificationConfigsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   for (NotificationConfig element :
       storageClient.listNotificationConfigs(request).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`request`	`ListNotificationConfigsRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`StorageClient.ListNotificationConfigsPagedResponse`

listNotificationConfigs(ProjectName parent)

public final StorageClient.ListNotificationConfigsPagedResponse listNotificationConfigs(ProjectName parent)

Retrieves a list of NotificationConfigs for a given bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ProjectName parent = ProjectName.of("[PROJECT]");
   for (NotificationConfig element :
       storageClient.listNotificationConfigs(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`parent`	`ProjectName` Required. Name of a Google Cloud Storage bucket.

Returns

Type	Description
`StorageClient.ListNotificationConfigsPagedResponse`

listNotificationConfigs(String parent)

public final StorageClient.ListNotificationConfigsPagedResponse listNotificationConfigs(String parent)

Retrieves a list of NotificationConfigs for a given bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String parent = ProjectName.of("[PROJECT]").toString();
   for (NotificationConfig element :
       storageClient.listNotificationConfigs(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`parent`	`String` Required. Name of a Google Cloud Storage bucket.

Returns

Type	Description
`StorageClient.ListNotificationConfigsPagedResponse`

listNotificationConfigsCallable()

public final UnaryCallable<ListNotificationConfigsRequest,ListNotificationConfigsResponse> listNotificationConfigsCallable()

Retrieves a list of NotificationConfigs for a given bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListNotificationConfigsRequest request =
       ListNotificationConfigsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   while (true) {
     ListNotificationConfigsResponse response =
         storageClient.listNotificationConfigsCallable().call(request);
     for (NotificationConfig element : response.getNotificationConfigsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }

Returns

Type	Description
`UnaryCallable<ListNotificationConfigsRequest,ListNotificationConfigsResponse>`

listNotificationConfigsPagedCallable()

public final UnaryCallable<ListNotificationConfigsRequest,StorageClient.ListNotificationConfigsPagedResponse> listNotificationConfigsPagedCallable()

Retrieves a list of NotificationConfigs for a given bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListNotificationConfigsRequest request =
       ListNotificationConfigsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   ApiFuture<NotificationConfig> future =
       storageClient.listNotificationConfigsPagedCallable().futureCall(request);
   // Do something.
   for (NotificationConfig element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }

Returns

Type	Description
`UnaryCallable<ListNotificationConfigsRequest,ListNotificationConfigsPagedResponse>`

listObjects(ListObjectsRequest request)

public final StorageClient.ListObjectsPagedResponse listObjects(ListObjectsRequest request)

Retrieves a list of objects matching the criteria.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListObjectsRequest request =
       ListObjectsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setDelimiter("delimiter-250518009")
           .setIncludeTrailingDelimiter(true)
           .setPrefix("prefix-980110702")
           .setVersions(true)
           .setReadMask(FieldMask.newBuilder().build())
           .setLexicographicStart("lexicographicStart-2093413008")
           .setLexicographicEnd("lexicographicEnd1646968169")
           .build();
   for (Object element : storageClient.listObjects(request).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`request`	`ListObjectsRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`StorageClient.ListObjectsPagedResponse`

listObjects(ProjectName parent)

public final StorageClient.ListObjectsPagedResponse listObjects(ProjectName parent)

Retrieves a list of objects matching the criteria.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ProjectName parent = ProjectName.of("[PROJECT]");
   for (Object element : storageClient.listObjects(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`parent`	`ProjectName` Required. Name of the bucket in which to look for objects.

Returns

Type	Description
`StorageClient.ListObjectsPagedResponse`

listObjects(String parent)

public final StorageClient.ListObjectsPagedResponse listObjects(String parent)

Retrieves a list of objects matching the criteria.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String parent = ProjectName.of("[PROJECT]").toString();
   for (Object element : storageClient.listObjects(parent).iterateAll()) {
     // doThingsWith(element);
   }
 }

Parameter

Name	Description
`parent`	`String` Required. Name of the bucket in which to look for objects.

Returns

Type	Description
`StorageClient.ListObjectsPagedResponse`

listObjectsCallable()

public final UnaryCallable<ListObjectsRequest,ListObjectsResponse> listObjectsCallable()

Retrieves a list of objects matching the criteria.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListObjectsRequest request =
       ListObjectsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setDelimiter("delimiter-250518009")
           .setIncludeTrailingDelimiter(true)
           .setPrefix("prefix-980110702")
           .setVersions(true)
           .setReadMask(FieldMask.newBuilder().build())
           .setLexicographicStart("lexicographicStart-2093413008")
           .setLexicographicEnd("lexicographicEnd1646968169")
           .build();
   while (true) {
     ListObjectsResponse response = storageClient.listObjectsCallable().call(request);
     for (Object element : response.getObjectsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }

Returns

Type	Description
`UnaryCallable<ListObjectsRequest,ListObjectsResponse>`

listObjectsPagedCallable()

public final UnaryCallable<ListObjectsRequest,StorageClient.ListObjectsPagedResponse> listObjectsPagedCallable()

Retrieves a list of objects matching the criteria.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ListObjectsRequest request =
       ListObjectsRequest.newBuilder()
           .setParent(ProjectName.of("[PROJECT]").toString())
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .setDelimiter("delimiter-250518009")
           .setIncludeTrailingDelimiter(true)
           .setPrefix("prefix-980110702")
           .setVersions(true)
           .setReadMask(FieldMask.newBuilder().build())
           .setLexicographicStart("lexicographicStart-2093413008")
           .setLexicographicEnd("lexicographicEnd1646968169")
           .build();
   ApiFuture<Object> future = storageClient.listObjectsPagedCallable().futureCall(request);
   // Do something.
   for (Object element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }

Returns

Type	Description
`UnaryCallable<ListObjectsRequest,ListObjectsPagedResponse>`

lockBucketRetentionPolicy(BucketName bucket)

public final Bucket lockBucketRetentionPolicy(BucketName bucket)

Locks retention policy on a bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   BucketName bucket = BucketName.of("[PROJECT]", "[BUCKET]");
   Bucket response = storageClient.lockBucketRetentionPolicy(bucket);
 }

Parameter

Name	Description
`bucket`	`BucketName` Required. Name of a bucket.

Returns

Type	Description
`Bucket`

lockBucketRetentionPolicy(LockBucketRetentionPolicyRequest request)

public final Bucket lockBucketRetentionPolicy(LockBucketRetentionPolicyRequest request)

Locks retention policy on a bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   LockBucketRetentionPolicyRequest request =
       LockBucketRetentionPolicyRequest.newBuilder()
           .setBucket(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .setIfMetagenerationMatch(1043427781)
           .build();
   Bucket response = storageClient.lockBucketRetentionPolicy(request);
 }

Parameter

Name	Description
`request`	`LockBucketRetentionPolicyRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`Bucket`

lockBucketRetentionPolicy(String bucket)

public final Bucket lockBucketRetentionPolicy(String bucket)

Locks retention policy on a bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String bucket = BucketName.of("[PROJECT]", "[BUCKET]").toString();
   Bucket response = storageClient.lockBucketRetentionPolicy(bucket);
 }

Parameter

Name	Description
`bucket`	`String` Required. Name of a bucket.

Returns

Type	Description
`Bucket`

lockBucketRetentionPolicyCallable()

public final UnaryCallable<LockBucketRetentionPolicyRequest,Bucket> lockBucketRetentionPolicyCallable()

Locks retention policy on a bucket.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   LockBucketRetentionPolicyRequest request =
       LockBucketRetentionPolicyRequest.newBuilder()
           .setBucket(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .setIfMetagenerationMatch(1043427781)
           .build();
   ApiFuture<Bucket> future =
       storageClient.lockBucketRetentionPolicyCallable().futureCall(request);
   // Do something.
   Bucket response = future.get();
 }

Returns

Type	Description
`UnaryCallable<LockBucketRetentionPolicyRequest,Bucket>`

queryWriteStatus(QueryWriteStatusRequest request)

public final QueryWriteStatusResponse queryWriteStatus(QueryWriteStatusRequest request)

Determines the persisted_size for an object that is being written, which can then be used as the write_offset for the next Write() call.

If the object does not exist (i.e., the object has been deleted, or the first Write() has not yet reached the service), this method returns the error NOT_FOUND.

The client **may** call QueryWriteStatus() at any time to determine how much data has been processed for this object. This is useful if the client is buffering data and needs to know which data can be safely evicted. For any sequence of QueryWriteStatus() calls for a given object name, the sequence of returned persisted_size values will be non-decreasing.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   QueryWriteStatusRequest request =
       QueryWriteStatusRequest.newBuilder()
           .setUploadId("uploadId1563990780")
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .build();
   QueryWriteStatusResponse response = storageClient.queryWriteStatus(request);
 }

Parameter

Name	Description
`request`	`QueryWriteStatusRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`QueryWriteStatusResponse`

queryWriteStatus(String uploadId)

public final QueryWriteStatusResponse queryWriteStatus(String uploadId)

Determines the persisted_size for an object that is being written, which can then be used as the write_offset for the next Write() call.

If the object does not exist (i.e., the object has been deleted, or the first Write() has not yet reached the service), this method returns the error NOT_FOUND.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String uploadId = "uploadId1563990780";
   QueryWriteStatusResponse response = storageClient.queryWriteStatus(uploadId);
 }

Parameter

Name	Description
`uploadId`	`String` Required. The name of the resume token for the object whose write status is being requested.

Returns

Type	Description
`QueryWriteStatusResponse`

queryWriteStatusCallable()

public final UnaryCallable<QueryWriteStatusRequest,QueryWriteStatusResponse> queryWriteStatusCallable()

Determines the persisted_size for an object that is being written, which can then be used as the write_offset for the next Write() call.

If the object does not exist (i.e., the object has been deleted, or the first Write() has not yet reached the service), this method returns the error NOT_FOUND.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   QueryWriteStatusRequest request =
       QueryWriteStatusRequest.newBuilder()
           .setUploadId("uploadId1563990780")
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .build();
   ApiFuture<QueryWriteStatusResponse> future =
       storageClient.queryWriteStatusCallable().futureCall(request);
   // Do something.
   QueryWriteStatusResponse response = future.get();
 }

Returns

Type	Description
`UnaryCallable<QueryWriteStatusRequest,QueryWriteStatusResponse>`

readObjectCallable()

public final ServerStreamingCallable<ReadObjectRequest,ReadObjectResponse> readObjectCallable()

Reads an object's data.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ReadObjectRequest request =
       ReadObjectRequest.newBuilder()
           .setBucket("bucket-1378203158")
           .setObject("object-1023368385")
           .setGeneration(305703192)
           .setReadOffset(-715377828)
           .setReadLimit(-164298798)
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setReadMask(FieldMask.newBuilder().build())
           .build();
   ServerStream<ReadObjectResponse> stream = storageClient.readObjectCallable().call(request);
   for (ReadObjectResponse response : stream) {
     // Do something when a response is received.
   }
 }

Returns

Type	Description
`ServerStreamingCallable<ReadObjectRequest,ReadObjectResponse>`

rewriteObject(RewriteObjectRequest request)

public final RewriteResponse rewriteObject(RewriteObjectRequest request)

Rewrites a source object to a destination object. Optionally overrides metadata.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   RewriteObjectRequest request =
       RewriteObjectRequest.newBuilder()
           .setDestinationName("destinationName-1762755655")
           .setDestinationBucket(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .setDestinationKmsKey(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .setDestination(Object.newBuilder().build())
           .setSourceBucket("sourceBucket841604581")
           .setSourceObject("sourceObject1196439354")
           .setSourceGeneration(1232209852)
           .setRewriteToken("rewriteToken80654285")
           .setDestinationPredefinedAcl("destinationPredefinedAcl1111125814")
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setIfSourceGenerationMatch(-1427877280)
           .setIfSourceGenerationNotMatch(1575612532)
           .setIfSourceMetagenerationMatch(1143319909)
           .setIfSourceMetagenerationNotMatch(1900822777)
           .setMaxBytesRewrittenPerCall(1178170730)
           .setCopySourceEncryptionAlgorithm("copySourceEncryptionAlgorithm-1524952548")
           .setCopySourceEncryptionKeyBytes(ByteString.EMPTY)
           .setCopySourceEncryptionKeySha256Bytes(ByteString.EMPTY)
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setObjectChecksums(ObjectChecksums.newBuilder().build())
           .build();
   RewriteResponse response = storageClient.rewriteObject(request);
 }

Parameter

Name	Description
`request`	`RewriteObjectRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`RewriteResponse`

rewriteObjectCallable()

public final UnaryCallable<RewriteObjectRequest,RewriteResponse> rewriteObjectCallable()

Rewrites a source object to a destination object. Optionally overrides metadata.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   RewriteObjectRequest request =
       RewriteObjectRequest.newBuilder()
           .setDestinationName("destinationName-1762755655")
           .setDestinationBucket(BucketName.of("[PROJECT]", "[BUCKET]").toString())
           .setDestinationKmsKey(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .setDestination(Object.newBuilder().build())
           .setSourceBucket("sourceBucket841604581")
           .setSourceObject("sourceObject1196439354")
           .setSourceGeneration(1232209852)
           .setRewriteToken("rewriteToken80654285")
           .setDestinationPredefinedAcl("destinationPredefinedAcl1111125814")
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setIfSourceGenerationMatch(-1427877280)
           .setIfSourceGenerationNotMatch(1575612532)
           .setIfSourceMetagenerationMatch(1143319909)
           .setIfSourceMetagenerationNotMatch(1900822777)
           .setMaxBytesRewrittenPerCall(1178170730)
           .setCopySourceEncryptionAlgorithm("copySourceEncryptionAlgorithm-1524952548")
           .setCopySourceEncryptionKeyBytes(ByteString.EMPTY)
           .setCopySourceEncryptionKeySha256Bytes(ByteString.EMPTY)
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setObjectChecksums(ObjectChecksums.newBuilder().build())
           .build();
   ApiFuture<RewriteResponse> future = storageClient.rewriteObjectCallable().futureCall(request);
   // Do something.
   RewriteResponse response = future.get();
 }

Returns

Type	Description
`UnaryCallable<RewriteObjectRequest,RewriteResponse>`

setIamPolicy(ResourceName resource, Policy policy)

public final Policy setIamPolicy(ResourceName resource, Policy policy)

Updates an IAM policy for the specified bucket or object. The resource field in the request should be projects//buckets/<bucket_name> for a bucket or projects//buckets/<bucket_name>/objects/<object_name> for an object.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ResourceName resource =
       CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]");
   Policy policy = Policy.newBuilder().build();
   Policy response = storageClient.setIamPolicy(resource, policy);
 }

Parameters

Name	Description
`resource`	`com.google.api.resourcenames.ResourceName` REQUIRED: The resource for which the policy is being specified. See the operation documentation for the appropriate value for this field.
`policy`	`com.google.iam.v1.Policy` REQUIRED: The complete policy to be applied to the `resource`. The size of the policy is limited to a few 10s of KB. An empty policy is a valid policy but certain Cloud Platform services (such as Projects) might reject them.

Returns

Type	Description
`com.google.iam.v1.Policy`

setIamPolicy(SetIamPolicyRequest request)

public final Policy setIamPolicy(SetIamPolicyRequest request)

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   SetIamPolicyRequest request =
       SetIamPolicyRequest.newBuilder()
           .setResource(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .setPolicy(Policy.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   Policy response = storageClient.setIamPolicy(request);
 }

Parameter

Name	Description
`request`	`com.google.iam.v1.SetIamPolicyRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`com.google.iam.v1.Policy`

setIamPolicy(String resource, Policy policy)

public final Policy setIamPolicy(String resource, Policy policy)

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String resource =
       CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]").toString();
   Policy policy = Policy.newBuilder().build();
   Policy response = storageClient.setIamPolicy(resource, policy);
 }

Parameters

Name	Description
`resource`	`String` REQUIRED: The resource for which the policy is being specified. See the operation documentation for the appropriate value for this field.
`policy`	`com.google.iam.v1.Policy` REQUIRED: The complete policy to be applied to the `resource`. The size of the policy is limited to a few 10s of KB. An empty policy is a valid policy but certain Cloud Platform services (such as Projects) might reject them.

Returns

Type	Description
`com.google.iam.v1.Policy`

setIamPolicyCallable()

public final UnaryCallable<SetIamPolicyRequest,Policy> setIamPolicyCallable()

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   SetIamPolicyRequest request =
       SetIamPolicyRequest.newBuilder()
           .setResource(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .setPolicy(Policy.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Policy> future = storageClient.setIamPolicyCallable().futureCall(request);
   // Do something.
   Policy response = future.get();
 }

Returns

Type	Description
`UnaryCallable<com.google.iam.v1.SetIamPolicyRequest,com.google.iam.v1.Policy>`

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()

startResumableWrite(StartResumableWriteRequest request)

public final StartResumableWriteResponse startResumableWrite(StartResumableWriteRequest request)

Starts a resumable write. How long the write operation remains valid, and what happens when the write operation becomes invalid, are service-dependent.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   StartResumableWriteRequest request =
       StartResumableWriteRequest.newBuilder()
           .setWriteObjectSpec(WriteObjectSpec.newBuilder().build())
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setObjectChecksums(ObjectChecksums.newBuilder().build())
           .build();
   StartResumableWriteResponse response = storageClient.startResumableWrite(request);
 }

Parameter

Name	Description
`request`	`StartResumableWriteRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`StartResumableWriteResponse`

startResumableWriteCallable()

public final UnaryCallable<StartResumableWriteRequest,StartResumableWriteResponse> startResumableWriteCallable()

Starts a resumable write. How long the write operation remains valid, and what happens when the write operation becomes invalid, are service-dependent.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   StartResumableWriteRequest request =
       StartResumableWriteRequest.newBuilder()
           .setWriteObjectSpec(WriteObjectSpec.newBuilder().build())
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .setObjectChecksums(ObjectChecksums.newBuilder().build())
           .build();
   ApiFuture<StartResumableWriteResponse> future =
       storageClient.startResumableWriteCallable().futureCall(request);
   // Do something.
   StartResumableWriteResponse response = future.get();
 }

Returns

Type	Description
`UnaryCallable<StartResumableWriteRequest,StartResumableWriteResponse>`

testIamPermissions(ResourceName resource, List<String> permissions)

public final TestIamPermissionsResponse testIamPermissions(ResourceName resource, List<String> permissions)

Tests a set of permissions on the given bucket or object to see which, if any, are held by the caller. The resource field in the request should be projects//buckets/<bucket_name> for a bucket or projects//buckets/<bucket_name>/objects/<object_name> for an object.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ResourceName resource =
       CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]");
   List<String> permissions = new ArrayList<>();
   TestIamPermissionsResponse response = storageClient.testIamPermissions(resource, permissions);
 }

Parameters

Name	Description
`resource`	`com.google.api.resourcenames.ResourceName` REQUIRED: The resource for which the policy detail is being requested. See the operation documentation for the appropriate value for this field.
`permissions`	`List<String>` The set of permissions to check for the `resource`. Permissions with wildcards (such as '' or 'storage.') are not allowed. For more information see IAM Overview.

Returns

Type	Description
`com.google.iam.v1.TestIamPermissionsResponse`

testIamPermissions(TestIamPermissionsRequest request)

public final TestIamPermissionsResponse testIamPermissions(TestIamPermissionsRequest request)

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   TestIamPermissionsRequest request =
       TestIamPermissionsRequest.newBuilder()
           .setResource(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .addAllPermissions(new ArrayList<String>())
           .build();
   TestIamPermissionsResponse response = storageClient.testIamPermissions(request);
 }

Parameter

Name	Description
`request`	`com.google.iam.v1.TestIamPermissionsRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`com.google.iam.v1.TestIamPermissionsResponse`

testIamPermissions(String resource, List<String> permissions)

public final TestIamPermissionsResponse testIamPermissions(String resource, List<String> permissions)

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   String resource =
       CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]").toString();
   List<String> permissions = new ArrayList<>();
   TestIamPermissionsResponse response = storageClient.testIamPermissions(resource, permissions);
 }

Parameters

Name	Description
`resource`	`String` REQUIRED: The resource for which the policy detail is being requested. See the operation documentation for the appropriate value for this field.
`permissions`	`List<String>` The set of permissions to check for the `resource`. Permissions with wildcards (such as '' or 'storage.') are not allowed. For more information see IAM Overview.

Returns

Type	Description
`com.google.iam.v1.TestIamPermissionsResponse`

testIamPermissionsCallable()

public final UnaryCallable<TestIamPermissionsRequest,TestIamPermissionsResponse> testIamPermissionsCallable()

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   TestIamPermissionsRequest request =
       TestIamPermissionsRequest.newBuilder()
           .setResource(
               CryptoKeyName.of("[PROJECT]", "[LOCATION]", "[KEY_RING]", "[CRYPTO_KEY]")
                   .toString())
           .addAllPermissions(new ArrayList<String>())
           .build();
   ApiFuture<TestIamPermissionsResponse> future =
       storageClient.testIamPermissionsCallable().futureCall(request);
   // Do something.
   TestIamPermissionsResponse response = future.get();
 }

Returns

Type	Description
`UnaryCallable<com.google.iam.v1.TestIamPermissionsRequest,com.google.iam.v1.TestIamPermissionsResponse>`

updateBucket(Bucket bucket, FieldMask updateMask)

public final Bucket updateBucket(Bucket bucket, FieldMask updateMask)

Updates a bucket. Equivalent to JSON API's storage.buckets.patch method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   Bucket bucket = Bucket.newBuilder().build();
   FieldMask updateMask = FieldMask.newBuilder().build();
   Bucket response = storageClient.updateBucket(bucket, updateMask);
 }

Parameters

Name Description

bucket

Bucket

Required. The bucket to update. The bucket's name field will be used to identify the bucket.

updateMask

FieldMask

Required. List of fields to be updated.

To specify ALL fields, equivalent to the JSON API's "update" function, specify a single field with the value *. Note: not recommended. If a new field is introduced at a later time, an older client updating with the * may accidentally reset the new field's value.

Not specifying any fields is an error. Not specifying a field while setting that field to a non-default value is an error.

Returns

Type	Description
`Bucket`

updateBucket(UpdateBucketRequest request)

public final Bucket updateBucket(UpdateBucketRequest request)

Updates a bucket. Equivalent to JSON API's storage.buckets.patch method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   UpdateBucketRequest request =
       UpdateBucketRequest.newBuilder()
           .setBucket(Bucket.newBuilder().build())
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setPredefinedAcl("predefinedAcl1207041188")
           .setPredefinedDefaultObjectAcl("predefinedDefaultObjectAcl2109168048")
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   Bucket response = storageClient.updateBucket(request);
 }

Parameter

Name	Description
`request`	`UpdateBucketRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`Bucket`

updateBucketCallable()

public final UnaryCallable<UpdateBucketRequest,Bucket> updateBucketCallable()

Updates a bucket. Equivalent to JSON API's storage.buckets.patch method.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   UpdateBucketRequest request =
       UpdateBucketRequest.newBuilder()
           .setBucket(Bucket.newBuilder().build())
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setPredefinedAcl("predefinedAcl1207041188")
           .setPredefinedDefaultObjectAcl("predefinedDefaultObjectAcl2109168048")
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Bucket> future = storageClient.updateBucketCallable().futureCall(request);
   // Do something.
   Bucket response = future.get();
 }

Returns

Type	Description
`UnaryCallable<UpdateBucketRequest,Bucket>`

updateHmacKey(HmacKeyMetadata hmacKey, FieldMask updateMask)

public final HmacKeyMetadata updateHmacKey(HmacKeyMetadata hmacKey, FieldMask updateMask)

Updates a given HMAC key state between ACTIVE and INACTIVE.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   HmacKeyMetadata hmacKey = HmacKeyMetadata.newBuilder().build();
   FieldMask updateMask = FieldMask.newBuilder().build();
   HmacKeyMetadata response = storageClient.updateHmacKey(hmacKey, updateMask);
 }

Parameters

Name	Description
`hmacKey`	`HmacKeyMetadata` Required. The HMAC key to update. If present, the hmac_key's `id` field will be used to identify the key. Otherwise, the hmac_key's access_id and project fields will be used to identify the key.
`updateMask`	`FieldMask` Update mask for hmac_key. Not specifying any fields will mean only the `state` field is updated to the value specified in `hmac_key`.

Returns

Type	Description
`HmacKeyMetadata`

updateHmacKey(UpdateHmacKeyRequest request)

public final HmacKeyMetadata updateHmacKey(UpdateHmacKeyRequest request)

Updates a given HMAC key state between ACTIVE and INACTIVE.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   UpdateHmacKeyRequest request =
       UpdateHmacKeyRequest.newBuilder()
           .setHmacKey(HmacKeyMetadata.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   HmacKeyMetadata response = storageClient.updateHmacKey(request);
 }

Parameter

Name	Description
`request`	`UpdateHmacKeyRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`HmacKeyMetadata`

updateHmacKeyCallable()

public final UnaryCallable<UpdateHmacKeyRequest,HmacKeyMetadata> updateHmacKeyCallable()

Updates a given HMAC key state between ACTIVE and INACTIVE.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   UpdateHmacKeyRequest request =
       UpdateHmacKeyRequest.newBuilder()
           .setHmacKey(HmacKeyMetadata.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<HmacKeyMetadata> future = storageClient.updateHmacKeyCallable().futureCall(request);
   // Do something.
   HmacKeyMetadata response = future.get();
 }

Returns

Type	Description
`UnaryCallable<UpdateHmacKeyRequest,HmacKeyMetadata>`

updateObject(Object object, FieldMask updateMask)

public final Object updateObject(Object object, FieldMask updateMask)

Updates an object's metadata. Equivalent to JSON API's storage.objects.patch.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   Object object = Object.newBuilder().build();
   FieldMask updateMask = FieldMask.newBuilder().build();
   Object response = storageClient.updateObject(object, updateMask);
 }

Parameters

Name Description

object

Object

Required. The object to update. The object's bucket and name fields are used to identify the object to update. If present, the object's generation field selects a specific revision of this object whose metadata should be updated. Otherwise, assumes the live version of the object.

updateMask

FieldMask

Required. List of fields to be updated.

Not specifying any fields is an error. Not specifying a field while setting that field to a non-default value is an error.

Returns

Type	Description
`Object`

updateObject(UpdateObjectRequest request)

public final Object updateObject(UpdateObjectRequest request)

Updates an object's metadata. Equivalent to JSON API's storage.objects.patch.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   UpdateObjectRequest request =
       UpdateObjectRequest.newBuilder()
           .setObject(Object.newBuilder().build())
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setPredefinedAcl("predefinedAcl1207041188")
           .setUpdateMask(FieldMask.newBuilder().build())
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .build();
   Object response = storageClient.updateObject(request);
 }

Parameter

Name	Description
`request`	`UpdateObjectRequest` The request object containing all of the parameters for the API call.

Returns

Type	Description
`Object`

updateObjectCallable()

public final UnaryCallable<UpdateObjectRequest,Object> updateObjectCallable()

Updates an object's metadata. Equivalent to JSON API's storage.objects.patch.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   UpdateObjectRequest request =
       UpdateObjectRequest.newBuilder()
           .setObject(Object.newBuilder().build())
           .setIfGenerationMatch(-1086241088)
           .setIfGenerationNotMatch(1475720404)
           .setIfMetagenerationMatch(1043427781)
           .setIfMetagenerationNotMatch(1025430873)
           .setPredefinedAcl("predefinedAcl1207041188")
           .setUpdateMask(FieldMask.newBuilder().build())
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .build();
   ApiFuture<Object> future = storageClient.updateObjectCallable().futureCall(request);
   // Do something.
   Object response = future.get();
 }

Returns

Type	Description
`UnaryCallable<UpdateObjectRequest,Object>`

writeObjectCallable()

public final ClientStreamingCallable<WriteObjectRequest,WriteObjectResponse> writeObjectCallable()

Stores a new object and metadata.

An object can be written either in a single message stream or in a resumable sequence of message streams. To write using a single stream, the client should include in the first message of the stream an WriteObjectSpec describing the destination bucket, object, and any preconditions. Additionally, the final message must set 'finish_write' to true, or else it is an error.

For a resumable write, the client should instead call StartResumableWrite(), populating a WriteObjectSpec into that request. They should then attach the returned upload_id to the first message of each following call to WriteObject. If the stream is closed before finishing the upload (either explicitly by the client or due to a network error or an error response from the server), the client should do as follows: - Check the result Status of the stream, to determine if writing can be resumed on this stream or must be restarted from scratch (by calling StartResumableWrite()). The resumable errors are DEADLINE_EXCEEDED, INTERNAL, and UNAVAILABLE. For each case, the client should use binary exponential backoff before retrying. Additionally, writes can be resumed after RESOURCE_EXHAUSTED errors, but only after taking appropriate measures, which may include reducing aggregate send rate across clients and/or requesting a quota increase for your project. - If the call to WriteObject returns ABORTED, that indicates concurrent attempts to update the resumable write, caused either by multiple racing clients or by a single client where the previous request was timed out on the client side but nonetheless reached the server. In this case the client should take steps to prevent further concurrent writes (e.g., increase the timeouts, stop using more than one process to perform the upload, etc.), and then should follow the steps below for resuming the upload. - For resumable errors, the client should call QueryWriteStatus() and then continue writing from the returned persisted_size. This may be less than the amount of data the client previously sent. Note also that it is acceptable to send data starting at an offset earlier than the returned persisted_size; in this case, the service will skip data at offsets that were already persisted (without checking that it matches the previously written data), and write only the data starting from the persisted offset. Even though the data isn't written, it may still incur a performance cost over resuming at the correct write offset. This behavior can make client-side handling simpler in some cases.

The service will not view the object as complete until the client has sent a WriteObjectRequest with finish_write set to true. Sending any requests on a stream after sending a request with finish_write set to true will cause an error. The client **should** check the response it receives to determine how much data the service was able to commit and whether the service views the object as complete.

Attempting to resume an already finalized object will result in an OK status, with a WriteObjectResponse containing the finalized object's metadata.

Sample code:


 // This snippet has been automatically generated and should be regarded as a code template only.
 // It will require modifications to work:
 // - It may require correct/in-range values for request initialization.
 // - It may require specifying regional endpoints when creating the service client as shown in
 // https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
 try (StorageClient storageClient = StorageClient.create()) {
   ApiStreamObserver<WriteObjectRequest> responseObserver =
       new ApiStreamObserver<WriteObjectRequest>() {
         {@literal @}Override
         public void onNext(WriteObjectResponse response) {
           // Do something when a response is received.
         }

         {@literal @}Override
         public void onError(Throwable t) {
           // Add error-handling
         }

         {@literal @}Override
         public void onCompleted() {
           // Do something when complete.
         }
       };
   ApiStreamObserver<WriteObjectRequest> requestObserver =
       storageClient.writeObject().clientStreamingCall(responseObserver);
   WriteObjectRequest request =
       WriteObjectRequest.newBuilder()
           .setWriteOffset(-1559543565)
           .setObjectChecksums(ObjectChecksums.newBuilder().build())
           .setFinishWrite(true)
           .setCommonObjectRequestParams(CommonObjectRequestParams.newBuilder().build())
           .build();
   requestObserver.onNext(request);
 }

Returns

Type	Description
`ClientStreamingCallable<WriteObjectRequest,WriteObjectResponse>`