Class CompletionServiceClient (2.34.0)

Version 2.34.0

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Beta

This library is covered by the Pre-GA Offerings Terms of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.

GitHub Repository

Product Reference

Service Description: Autocomplete service for retail.

This feature is only available for users who have Retail Search enabled. Enable Retail Search on Cloud Console before using this feature.

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 (CompletionServiceClient completionServiceClient = CompletionServiceClient.create()) {
   CompleteQueryRequest request =
       CompleteQueryRequest.newBuilder()
           .setCatalog(CatalogName.of("[PROJECT]", "[LOCATION]", "[CATALOG]").toString())
           .setQuery("query107944136")
           .setVisitorId("visitorId1880545833")
           .addAllLanguageCodes(new ArrayList<String>())
           .setDeviceType("deviceType781190832")
           .setDataset("dataset1443214456")
           .setMaxSuggestions(618824852)
           .setEntity("entity-1298275357")
           .build();
   CompleteQueryResponse response = completionServiceClient.completeQuery(request);
 }
 

Note: close() needs to be called on the CompletionServiceClient 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 CompletionServiceSettings 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
 CompletionServiceSettings completionServiceSettings =
     CompletionServiceSettings.newBuilder()
         .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
         .build();
 CompletionServiceClient completionServiceClient =
     CompletionServiceClient.create(completionServiceSettings);
 

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
 CompletionServiceSettings completionServiceSettings =
     CompletionServiceSettings.newBuilder().setEndpoint(myEndpoint).build();
 CompletionServiceClient completionServiceClient =
     CompletionServiceClient.create(completionServiceSettings);
 

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
 CompletionServiceSettings completionServiceSettings =
     CompletionServiceSettings.newHttpJsonBuilder().build();
 CompletionServiceClient completionServiceClient =
     CompletionServiceClient.create(completionServiceSettings);
 

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

Inheritance

java.lang.Object > CompletionServiceClient

Static Methods

create()

public static final CompletionServiceClient create()

Constructs an instance of CompletionServiceClient with default settings.

Returns
Type	Description
CompletionServiceClient

Exceptions
Type	Description
IOException

create(CompletionServiceSettings settings)

public static final CompletionServiceClient create(CompletionServiceSettings settings)

Constructs an instance of CompletionServiceClient, 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	CompletionServiceSettings

Returns
Type	Description
CompletionServiceClient

Exceptions
Type	Description
IOException

create(CompletionServiceStub stub)

public static final CompletionServiceClient create(CompletionServiceStub stub)

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

Parameter
Name	Description
stub	CompletionServiceStub

Returns
Type	Description
CompletionServiceClient

Constructors

CompletionServiceClient(CompletionServiceSettings settings)

protected CompletionServiceClient(CompletionServiceSettings settings)

Constructs an instance of CompletionServiceClient, 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	CompletionServiceSettings

CompletionServiceClient(CompletionServiceStub stub)

protected CompletionServiceClient(CompletionServiceStub stub)

Parameter
Name	Description
stub	CompletionServiceStub

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()

completeQuery(CompleteQueryRequest request)

public final CompleteQueryResponse completeQuery(CompleteQueryRequest request)

Completes the specified prefix with keyword suggestions.

This feature is only available for users who have Retail Search enabled. Enable Retail Search on Cloud Console before using this feature.

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 (CompletionServiceClient completionServiceClient = CompletionServiceClient.create()) {
   CompleteQueryRequest request =
       CompleteQueryRequest.newBuilder()
           .setCatalog(CatalogName.of("[PROJECT]", "[LOCATION]", "[CATALOG]").toString())
           .setQuery("query107944136")
           .setVisitorId("visitorId1880545833")
           .addAllLanguageCodes(new ArrayList<String>())
           .setDeviceType("deviceType781190832")
           .setDataset("dataset1443214456")
           .setMaxSuggestions(618824852)
           .setEntity("entity-1298275357")
           .build();
   CompleteQueryResponse response = completionServiceClient.completeQuery(request);
 }
 

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

Returns
Type	Description
CompleteQueryResponse

completeQueryCallable()

public final UnaryCallable<CompleteQueryRequest,CompleteQueryResponse> completeQueryCallable()

Completes the specified prefix with keyword suggestions.

This feature is only available for users who have Retail Search enabled. Enable Retail Search on Cloud Console before using this feature.

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 (CompletionServiceClient completionServiceClient = CompletionServiceClient.create()) {
   CompleteQueryRequest request =
       CompleteQueryRequest.newBuilder()
           .setCatalog(CatalogName.of("[PROJECT]", "[LOCATION]", "[CATALOG]").toString())
           .setQuery("query107944136")
           .setVisitorId("visitorId1880545833")
           .addAllLanguageCodes(new ArrayList<String>())
           .setDeviceType("deviceType781190832")
           .setDataset("dataset1443214456")
           .setMaxSuggestions(618824852)
           .setEntity("entity-1298275357")
           .build();
   ApiFuture<CompleteQueryResponse> future =
       completionServiceClient.completeQueryCallable().futureCall(request);
   // Do something.
   CompleteQueryResponse response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<CompleteQueryRequest,CompleteQueryResponse>

getHttpJsonOperationsClient()

public final OperationsClient getHttpJsonOperationsClient()

Beta

This feature is covered by the Pre-GA Offerings Terms of the Terms of Service. Pre-GA libraries might have limited support, and changes to pre-GA libraries might not be compatible with other pre-GA versions. For more information, see the launch stage descriptions.

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

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 CompletionServiceSettings getSettings()

Returns
Type	Description
CompletionServiceSettings

getStub()

public CompletionServiceStub getStub()

Returns
Type	Description
CompletionServiceStub

importCompletionDataAsync(ImportCompletionDataRequest request)

public final OperationFuture<ImportCompletionDataResponse,ImportMetadata> importCompletionDataAsync(ImportCompletionDataRequest request)

Bulk import of processed completion dataset.

Request processing is asynchronous. Partial updating is not supported.

The operation is successfully finished only after the imported suggestions are indexed successfully and ready for serving. The process takes hours.

This feature is only available for users who have Retail Search enabled. Enable Retail Search on Cloud Console before using this feature.

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 (CompletionServiceClient completionServiceClient = CompletionServiceClient.create()) {
   ImportCompletionDataRequest request =
       ImportCompletionDataRequest.newBuilder()
           .setParent(CatalogName.of("[PROJECT]", "[LOCATION]", "[CATALOG]").toString())
           .setInputConfig(CompletionDataInputConfig.newBuilder().build())
           .setNotificationPubsubTopic("notificationPubsubTopic-1361224991")
           .build();
   ImportCompletionDataResponse response =
       completionServiceClient.importCompletionDataAsync(request).get();
 }
 

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

Returns
Type	Description
OperationFuture<ImportCompletionDataResponse,ImportMetadata>

importCompletionDataCallable()

public final UnaryCallable<ImportCompletionDataRequest,Operation> importCompletionDataCallable()

Bulk import of processed completion dataset.

Request processing is asynchronous. Partial updating is not supported.

The operation is successfully finished only after the imported suggestions are indexed successfully and ready for serving. The process takes hours.

This feature is only available for users who have Retail Search enabled. Enable Retail Search on Cloud Console before using this feature.

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 (CompletionServiceClient completionServiceClient = CompletionServiceClient.create()) {
   ImportCompletionDataRequest request =
       ImportCompletionDataRequest.newBuilder()
           .setParent(CatalogName.of("[PROJECT]", "[LOCATION]", "[CATALOG]").toString())
           .setInputConfig(CompletionDataInputConfig.newBuilder().build())
           .setNotificationPubsubTopic("notificationPubsubTopic-1361224991")
           .build();
   ApiFuture<Operation> future =
       completionServiceClient.importCompletionDataCallable().futureCall(request);
   // Do something.
   Operation response = future.get();
 }
 

Returns
Type	Description
UnaryCallable<ImportCompletionDataRequest,Operation>

importCompletionDataOperationCallable()

public final OperationCallable<ImportCompletionDataRequest,ImportCompletionDataResponse,ImportMetadata> importCompletionDataOperationCallable()

Bulk import of processed completion dataset.

Request processing is asynchronous. Partial updating is not supported.

The operation is successfully finished only after the imported suggestions are indexed successfully and ready for serving. The process takes hours.

This feature is only available for users who have Retail Search enabled. Enable Retail Search on Cloud Console before using this feature.

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 (CompletionServiceClient completionServiceClient = CompletionServiceClient.create()) {
   ImportCompletionDataRequest request =
       ImportCompletionDataRequest.newBuilder()
           .setParent(CatalogName.of("[PROJECT]", "[LOCATION]", "[CATALOG]").toString())
           .setInputConfig(CompletionDataInputConfig.newBuilder().build())
           .setNotificationPubsubTopic("notificationPubsubTopic-1361224991")
           .build();
   OperationFuture<ImportCompletionDataResponse, ImportMetadata> future =
       completionServiceClient.importCompletionDataOperationCallable().futureCall(request);
   // Do something.
   ImportCompletionDataResponse response = future.get();
 }
 

Returns
Type	Description
OperationCallable<ImportCompletionDataRequest,ImportCompletionDataResponse,ImportMetadata>

isShutdown()

public boolean isShutdown()

Returns
Type	Description
boolean

isTerminated()

public boolean isTerminated()

Returns
Type	Description
boolean

shutdown()

public void shutdown()

shutdownNow()

public void shutdownNow()