Class DocumentServiceClient (2.24.0)

Version 2.24.0

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public class DocumentServiceClient implements BackgroundResource

Service Description: Service to call Cloud DocumentAI to manage document collection (dataset).

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   DatasetSchemaName name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
   DatasetSchema response = documentServiceClient.getDatasetSchema(name);
 }
 

Note: close() needs to be called on the DocumentServiceClient 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:

1. 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.
2. 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.
3. 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 DocumentServiceSettings 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
 DocumentServiceSettings documentServiceSettings =
     DocumentServiceSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 DocumentServiceClient documentServiceClient =
     DocumentServiceClient.create(documentServiceSettings);
 

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
 DocumentServiceSettings documentServiceSettings =
     DocumentServiceSettings.newBuilder().setEndpoint(myEndpoint).build();
 DocumentServiceClient documentServiceClient =
     DocumentServiceClient.create(documentServiceSettings);
 

To use REST (HTTP1.1/JSON) transport (instead of gRPC) for sending and receiving requests over the wire:

 // 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
 DocumentServiceSettings documentServiceSettings =
     DocumentServiceSettings.newHttpJsonBuilder().build();
 DocumentServiceClient documentServiceClient =
     DocumentServiceClient.create(documentServiceSettings);
 

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

Inheritance

java.lang.Object > DocumentServiceClient

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 DocumentServiceClient create()

Constructs an instance of DocumentServiceClient with default settings.

Returns
Type	Description
DocumentServiceClient

Exceptions
Type	Description
IOException

create(DocumentServiceSettings settings)

public static final DocumentServiceClient create(DocumentServiceSettings settings)

Constructs an instance of DocumentServiceClient, 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	DocumentServiceSettings

Returns
Type	Description
DocumentServiceClient

Exceptions
Type	Description
IOException

create(DocumentServiceStub stub)

public static final DocumentServiceClient create(DocumentServiceStub stub)

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

Parameter
Name	Description
stub	DocumentServiceStub

Returns
Type	Description
DocumentServiceClient

Constructors

DocumentServiceClient(DocumentServiceSettings settings)

protected DocumentServiceClient(DocumentServiceSettings settings)

Constructs an instance of DocumentServiceClient, 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	DocumentServiceSettings

DocumentServiceClient(DocumentServiceStub stub)

protected DocumentServiceClient(DocumentServiceStub stub)

Parameter
Name	Description
stub	DocumentServiceStub

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

close()

public final void close()

getDatasetSchema(DatasetSchemaName name)

public final DatasetSchema getDatasetSchema(DatasetSchemaName name)

Gets the DatasetSchema of a Dataset.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   DatasetSchemaName name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]");
   DatasetSchema response = documentServiceClient.getDatasetSchema(name);
 }
 

Parameter
Name	Description
name	DatasetSchemaName Required. The dataset schema resource name. Format: projects/{project}/locations/{location}/processors/{processor}/dataset/datasetSchema

Returns
Type	Description
DatasetSchema

getDatasetSchema(GetDatasetSchemaRequest request)

public final DatasetSchema getDatasetSchema(GetDatasetSchemaRequest request)

Gets the DatasetSchema of a Dataset.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   GetDatasetSchemaRequest request =
       GetDatasetSchemaRequest.newBuilder()
           .setName(DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
           .setVisibleFieldsOnly(true)
           .build();
   DatasetSchema response = documentServiceClient.getDatasetSchema(request);
 }
 

Parameter
Name	Description
request	GetDatasetSchemaRequest The request object containing all of the parameters for the API call.

Returns
Type	Description
DatasetSchema

getDatasetSchema(String name)

public final DatasetSchema getDatasetSchema(String name)

Gets the DatasetSchema of a Dataset.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   String name = DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString();
   DatasetSchema response = documentServiceClient.getDatasetSchema(name);
 }
 

Parameter
Name	Description
name	String Required. The dataset schema resource name. Format: projects/{project}/locations/{location}/processors/{processor}/dataset/datasetSchema

Returns
Type	Description
DatasetSchema

getDatasetSchemaCallable()

public final UnaryCallable<GetDatasetSchemaRequest,DatasetSchema> getDatasetSchemaCallable()

Gets the DatasetSchema of a Dataset.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   GetDatasetSchemaRequest request =
       GetDatasetSchemaRequest.newBuilder()
           .setName(DatasetSchemaName.of("[PROJECT]", "[LOCATION]", "[PROCESSOR]").toString())
           .setVisibleFieldsOnly(true)
           .build();
   ApiFuture<DatasetSchema> future =
       documentServiceClient.getDatasetSchemaCallable().futureCall(request);
   // Do something.
   DatasetSchema response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<GetDatasetSchemaRequest,DatasetSchema>

getHttpJsonOperationsClient()

public final OperationsClient getHttpJsonOperationsClient()

Returns the OperationsClient that can be used to query the status of a long-running operation returned by another API method call.

Returns
Type	Description
OperationsClient

getLocation(GetLocationRequest request)

public final Location getLocation(GetLocationRequest request)

Gets information about a location.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
   Location response = documentServiceClient.getLocation(request);
 }
 

Parameter
Name	Description
request	com.google.cloud.location.GetLocationRequest The request object containing all of the parameters for the API call.

Returns
Type	Description
com.google.cloud.location.Location

getLocationCallable()

public final UnaryCallable<GetLocationRequest,Location> getLocationCallable()

Gets information about a location.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   GetLocationRequest request = GetLocationRequest.newBuilder().setName("name3373707").build();
   ApiFuture<Location> future = documentServiceClient.getLocationCallable().futureCall(request);
   // Do something.
   Location response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<com.google.cloud.location.GetLocationRequest,com.google.cloud.location.Location>

getOperationsClient()

public final OperationsClient getOperationsClient()

Returns the OperationsClient that can be used to query the status of a long-running operation returned by another API method call.

Returns
Type	Description
OperationsClient

getSettings()

public final DocumentServiceSettings getSettings()

Returns
Type	Description
DocumentServiceSettings

getStub()

public DocumentServiceStub getStub()

Returns
Type	Description
DocumentServiceStub

isShutdown()

public boolean isShutdown()

Returns
Type	Description
boolean

isTerminated()

public boolean isTerminated()

Returns
Type	Description
boolean

listLocations(ListLocationsRequest request)

public final DocumentServiceClient.ListLocationsPagedResponse listLocations(ListLocationsRequest request)

Lists information about the supported locations for this service.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   for (Location element : documentServiceClient.listLocations(request).iterateAll()) {
     // doThingsWith(element);
   }
 }
 

Parameter
Name	Description
request	com.google.cloud.location.ListLocationsRequest The request object containing all of the parameters for the API call.

Returns
Type	Description
DocumentServiceClient.ListLocationsPagedResponse

listLocationsCallable()

public final UnaryCallable<ListLocationsRequest,ListLocationsResponse> listLocationsCallable()

Lists information about the supported locations for this service.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   while (true) {
     ListLocationsResponse response =
         documentServiceClient.listLocationsCallable().call(request);
     for (Location element : response.getLocationsList()) {
       // doThingsWith(element);
     }
     String nextPageToken = response.getNextPageToken();
     if (!Strings.isNullOrEmpty(nextPageToken)) {
       request = request.toBuilder().setPageToken(nextPageToken).build();
     } else {
       break;
     }
   }
 }
 

Returns
Type	Description
UnaryCallable<com.google.cloud.location.ListLocationsRequest,com.google.cloud.location.ListLocationsResponse>

listLocationsPagedCallable()

public final UnaryCallable<ListLocationsRequest,DocumentServiceClient.ListLocationsPagedResponse> listLocationsPagedCallable()

Lists information about the supported locations for this service.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   ListLocationsRequest request =
       ListLocationsRequest.newBuilder()
           .setName("name3373707")
           .setFilter("filter-1274492040")
           .setPageSize(883849137)
           .setPageToken("pageToken873572522")
           .build();
   ApiFuture<Location> future =
       documentServiceClient.listLocationsPagedCallable().futureCall(request);
   // Do something.
   for (Location element : future.get().iterateAll()) {
     // doThingsWith(element);
   }
 }
 

Returns
Type	Description
UnaryCallable<com.google.cloud.location.ListLocationsRequest,ListLocationsPagedResponse>

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()

updateDatasetAsync(Dataset dataset, FieldMask updateMask)

public final OperationFuture<Dataset,UpdateDatasetOperationMetadata> updateDatasetAsync(Dataset dataset, FieldMask updateMask)

Updates metadata associated with a dataset.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   Dataset dataset = Dataset.newBuilder().build();
   FieldMask updateMask = FieldMask.newBuilder().build();
   Dataset response = documentServiceClient.updateDatasetAsync(dataset, updateMask).get();
 }
 

Parameters
Name	Description
dataset	Dataset Required. The name field of the Dataset is used to identify the resource to be updated.
updateMask	FieldMask The update mask applies to the resource.

Returns
Type	Description
OperationFuture<Dataset,UpdateDatasetOperationMetadata>

updateDatasetAsync(UpdateDatasetRequest request)

public final OperationFuture<Dataset,UpdateDatasetOperationMetadata> updateDatasetAsync(UpdateDatasetRequest request)

Updates metadata associated with a dataset.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   UpdateDatasetRequest request =
       UpdateDatasetRequest.newBuilder()
           .setDataset(Dataset.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   Dataset response = documentServiceClient.updateDatasetAsync(request).get();
 }
 

Parameter
Name	Description
request	UpdateDatasetRequest The request object containing all of the parameters for the API call.

Returns
Type	Description
OperationFuture<Dataset,UpdateDatasetOperationMetadata>

updateDatasetCallable()

public final UnaryCallable<UpdateDatasetRequest,Operation> updateDatasetCallable()

Updates metadata associated with a dataset.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   UpdateDatasetRequest request =
       UpdateDatasetRequest.newBuilder()
           .setDataset(Dataset.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<Operation> future =
       documentServiceClient.updateDatasetCallable().futureCall(request);
   // Do something.
   Operation response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<UpdateDatasetRequest,Operation>

updateDatasetOperationCallable()

public final OperationCallable<UpdateDatasetRequest,Dataset,UpdateDatasetOperationMetadata> updateDatasetOperationCallable()

Updates metadata associated with a dataset.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   UpdateDatasetRequest request =
       UpdateDatasetRequest.newBuilder()
           .setDataset(Dataset.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   OperationFuture<Dataset, UpdateDatasetOperationMetadata> future =
       documentServiceClient.updateDatasetOperationCallable().futureCall(request);
   // Do something.
   Dataset response = future.get();
 }
 

Returns
Type	Description
OperationCallable<UpdateDatasetRequest,Dataset,UpdateDatasetOperationMetadata>

updateDatasetSchema(DatasetSchema datasetSchema, FieldMask updateMask)

public final DatasetSchema updateDatasetSchema(DatasetSchema datasetSchema, FieldMask updateMask)

Updates a DatasetSchema.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   DatasetSchema datasetSchema = DatasetSchema.newBuilder().build();
   FieldMask updateMask = FieldMask.newBuilder().build();
   DatasetSchema response = documentServiceClient.updateDatasetSchema(datasetSchema, updateMask);
 }
 

Parameters
Name	Description
datasetSchema	DatasetSchema Required. The name field of the DatasetSchema is used to identify the resource to be updated.
updateMask	FieldMask The update mask applies to the resource.

Returns
Type	Description
DatasetSchema

updateDatasetSchema(UpdateDatasetSchemaRequest request)

public final DatasetSchema updateDatasetSchema(UpdateDatasetSchemaRequest request)

Updates a DatasetSchema.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   UpdateDatasetSchemaRequest request =
       UpdateDatasetSchemaRequest.newBuilder()
           .setDatasetSchema(DatasetSchema.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   DatasetSchema response = documentServiceClient.updateDatasetSchema(request);
 }
 

Parameter
Name	Description
request	UpdateDatasetSchemaRequest The request object containing all of the parameters for the API call.

Returns
Type	Description
DatasetSchema

updateDatasetSchemaCallable()

public final UnaryCallable<UpdateDatasetSchemaRequest,DatasetSchema> updateDatasetSchemaCallable()

Updates a DatasetSchema.

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 (DocumentServiceClient documentServiceClient = DocumentServiceClient.create()) {
   UpdateDatasetSchemaRequest request =
       UpdateDatasetSchemaRequest.newBuilder()
           .setDatasetSchema(DatasetSchema.newBuilder().build())
           .setUpdateMask(FieldMask.newBuilder().build())
           .build();
   ApiFuture<DatasetSchema> future =
       documentServiceClient.updateDatasetSchemaCallable().futureCall(request);
   // Do something.
   DatasetSchema response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<UpdateDatasetSchemaRequest,DatasetSchema>