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Discovery Engine API A Cloud API that offers search and recommendation discoverability for documents from different industry verticals (e.g. media, retail, etc.).
/*
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.google.cloud.discoveryengine.v1beta;
import com.google.api.core.ApiFuture;
import com.google.api.core.ApiFutures;
import com.google.api.core.BetaApi;
import com.google.api.gax.core.BackgroundResource;
import com.google.api.gax.paging.AbstractFixedSizeCollection;
import com.google.api.gax.paging.AbstractPage;
import com.google.api.gax.paging.AbstractPagedListResponse;
import com.google.api.gax.rpc.PageContext;
import com.google.api.gax.rpc.UnaryCallable;
import com.google.cloud.discoveryengine.v1beta.stub.SearchServiceStub;
import com.google.cloud.discoveryengine.v1beta.stub.SearchServiceStubSettings;
import com.google.common.util.concurrent.MoreExecutors;
import java.io.IOException;
import java.util.List;
import java.util.concurrent.TimeUnit;
import javax.annotation.Generated;
// AUTO-GENERATED DOCUMENTATION AND CLASS.
/**
* Service Description: Service for search.
*
* 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:
*
*
{@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 (SearchServiceClient searchServiceClient = SearchServiceClient.create()) {
* SearchRequest request =
* SearchRequest.newBuilder()
* .setServingConfig(
* ServingConfigName.ofProjectLocationDataStoreServingConfigName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[SERVING_CONFIG]")
* .toString())
* .setBranch(
* BranchName.ofProjectLocationDataStoreBranchName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[BRANCH]")
* .toString())
* .setQuery("query107944136")
* .setImageQuery(SearchRequest.ImageQuery.newBuilder().build())
* .setPageSize(883849137)
* .setPageToken("pageToken873572522")
* .setOffset(-1019779949)
* .addAllDataStoreSpecs(new ArrayList())
* .setFilter("filter-1274492040")
* .setCanonicalFilter("canonicalFilter-722283124")
* .setOrderBy("orderBy-1207110587")
* .setUserInfo(UserInfo.newBuilder().build())
* .setLanguageCode("languageCode-2092349083")
* .setRegionCode("regionCode-1991004415")
* .addAllFacetSpecs(new ArrayList())
* .setBoostSpec(SearchRequest.BoostSpec.newBuilder().build())
* .putAllParams(new HashMap())
* .setQueryExpansionSpec(SearchRequest.QueryExpansionSpec.newBuilder().build())
* .setSpellCorrectionSpec(SearchRequest.SpellCorrectionSpec.newBuilder().build())
* .setUserPseudoId("userPseudoId-1155274652")
* .setContentSearchSpec(SearchRequest.ContentSearchSpec.newBuilder().build())
* .setEmbeddingSpec(SearchRequest.EmbeddingSpec.newBuilder().build())
* .setRankingExpression("rankingExpression2110320494")
* .setSafeSearch(true)
* .putAllUserLabels(new HashMap())
* .setNaturalLanguageQueryUnderstandingSpec(
* SearchRequest.NaturalLanguageQueryUnderstandingSpec.newBuilder().build())
* .setSearchAsYouTypeSpec(SearchRequest.SearchAsYouTypeSpec.newBuilder().build())
* .setSession(
* SessionName.ofProjectLocationDataStoreSessionName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[SESSION]")
* .toString())
* .setSessionSpec(SearchRequest.SessionSpec.newBuilder().build())
* .build();
* for (SearchResponse.SearchResult element : searchServiceClient.search(request).iterateAll()) {
* // doThingsWith(element);
* }
* }
* }
*
* Note: close() needs to be called on the SearchServiceClient object to clean up resources such
* as threads. In the example above, try-with-resources is used, which automatically calls close().
*
*
* Methods
*
* Method
* Description
* Method Variants
*
*
* Search
Performs a search.
* Request object method variants only take one parameter, a request object, which must be constructed before the call.
*
* search(SearchRequest request)
*
* Callable method variants take no parameters and return an immutable API callable object, which can be used to initiate calls to the service.
*
* searchPagedCallable()
*
searchCallable()
*
*
*
*
*
* 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 SearchServiceSettings to
* create(). For example:
*
*
To customize credentials:
*
*
{@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
* SearchServiceSettings searchServiceSettings =
* SearchServiceSettings.newBuilder()
* .setCredentialsProvider(FixedCredentialsProvider.create(myCredentials))
* .build();
* SearchServiceClient searchServiceClient = SearchServiceClient.create(searchServiceSettings);
* }
*
* To customize the endpoint:
*
*
{@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
* SearchServiceSettings searchServiceSettings =
* SearchServiceSettings.newBuilder().setEndpoint(myEndpoint).build();
* SearchServiceClient searchServiceClient = SearchServiceClient.create(searchServiceSettings);
* }
*
* To use REST (HTTP1.1/JSON) transport (instead of gRPC) for sending and receiving requests over
* the wire:
*
*
{@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
* SearchServiceSettings searchServiceSettings =
* SearchServiceSettings.newHttpJsonBuilder().build();
* SearchServiceClient searchServiceClient = SearchServiceClient.create(searchServiceSettings);
* }
*
* Please refer to the GitHub repository's samples for more quickstart code snippets.
*/
@BetaApi
@Generated("by gapic-generator-java")
public class SearchServiceClient implements BackgroundResource {
private final SearchServiceSettings settings;
private final SearchServiceStub stub;
/** Constructs an instance of SearchServiceClient with default settings. */
public static final SearchServiceClient create() throws IOException {
return create(SearchServiceSettings.newBuilder().build());
}
/**
* Constructs an instance of SearchServiceClient, using the given settings. The channels are
* created based on the settings passed in, or defaults for any settings that are not set.
*/
public static final SearchServiceClient create(SearchServiceSettings settings)
throws IOException {
return new SearchServiceClient(settings);
}
/**
* Constructs an instance of SearchServiceClient, using the given stub for making calls. This is
* for advanced usage - prefer using create(SearchServiceSettings).
*/
public static final SearchServiceClient create(SearchServiceStub stub) {
return new SearchServiceClient(stub);
}
/**
* Constructs an instance of SearchServiceClient, 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.
*/
protected SearchServiceClient(SearchServiceSettings settings) throws IOException {
this.settings = settings;
this.stub = ((SearchServiceStubSettings) settings.getStubSettings()).createStub();
}
protected SearchServiceClient(SearchServiceStub stub) {
this.settings = null;
this.stub = stub;
}
public final SearchServiceSettings getSettings() {
return settings;
}
public SearchServiceStub getStub() {
return stub;
}
// AUTO-GENERATED DOCUMENTATION AND METHOD.
/**
* Performs a search.
*
*
Sample code:
*
*
{@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 (SearchServiceClient searchServiceClient = SearchServiceClient.create()) {
* SearchRequest request =
* SearchRequest.newBuilder()
* .setServingConfig(
* ServingConfigName.ofProjectLocationDataStoreServingConfigName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[SERVING_CONFIG]")
* .toString())
* .setBranch(
* BranchName.ofProjectLocationDataStoreBranchName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[BRANCH]")
* .toString())
* .setQuery("query107944136")
* .setImageQuery(SearchRequest.ImageQuery.newBuilder().build())
* .setPageSize(883849137)
* .setPageToken("pageToken873572522")
* .setOffset(-1019779949)
* .addAllDataStoreSpecs(new ArrayList())
* .setFilter("filter-1274492040")
* .setCanonicalFilter("canonicalFilter-722283124")
* .setOrderBy("orderBy-1207110587")
* .setUserInfo(UserInfo.newBuilder().build())
* .setLanguageCode("languageCode-2092349083")
* .setRegionCode("regionCode-1991004415")
* .addAllFacetSpecs(new ArrayList())
* .setBoostSpec(SearchRequest.BoostSpec.newBuilder().build())
* .putAllParams(new HashMap())
* .setQueryExpansionSpec(SearchRequest.QueryExpansionSpec.newBuilder().build())
* .setSpellCorrectionSpec(SearchRequest.SpellCorrectionSpec.newBuilder().build())
* .setUserPseudoId("userPseudoId-1155274652")
* .setContentSearchSpec(SearchRequest.ContentSearchSpec.newBuilder().build())
* .setEmbeddingSpec(SearchRequest.EmbeddingSpec.newBuilder().build())
* .setRankingExpression("rankingExpression2110320494")
* .setSafeSearch(true)
* .putAllUserLabels(new HashMap())
* .setNaturalLanguageQueryUnderstandingSpec(
* SearchRequest.NaturalLanguageQueryUnderstandingSpec.newBuilder().build())
* .setSearchAsYouTypeSpec(SearchRequest.SearchAsYouTypeSpec.newBuilder().build())
* .setSession(
* SessionName.ofProjectLocationDataStoreSessionName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[SESSION]")
* .toString())
* .setSessionSpec(SearchRequest.SessionSpec.newBuilder().build())
* .build();
* for (SearchResponse.SearchResult element : searchServiceClient.search(request).iterateAll()) {
* // doThingsWith(element);
* }
* }
* }
*
* @param request The request object containing all of the parameters for the API call.
* @throws com.google.api.gax.rpc.ApiException if the remote call fails
*/
public final SearchPagedResponse search(SearchRequest request) {
return searchPagedCallable().call(request);
}
// AUTO-GENERATED DOCUMENTATION AND METHOD.
/**
* Performs a search.
*
* Sample code:
*
*
{@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 (SearchServiceClient searchServiceClient = SearchServiceClient.create()) {
* SearchRequest request =
* SearchRequest.newBuilder()
* .setServingConfig(
* ServingConfigName.ofProjectLocationDataStoreServingConfigName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[SERVING_CONFIG]")
* .toString())
* .setBranch(
* BranchName.ofProjectLocationDataStoreBranchName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[BRANCH]")
* .toString())
* .setQuery("query107944136")
* .setImageQuery(SearchRequest.ImageQuery.newBuilder().build())
* .setPageSize(883849137)
* .setPageToken("pageToken873572522")
* .setOffset(-1019779949)
* .addAllDataStoreSpecs(new ArrayList())
* .setFilter("filter-1274492040")
* .setCanonicalFilter("canonicalFilter-722283124")
* .setOrderBy("orderBy-1207110587")
* .setUserInfo(UserInfo.newBuilder().build())
* .setLanguageCode("languageCode-2092349083")
* .setRegionCode("regionCode-1991004415")
* .addAllFacetSpecs(new ArrayList())
* .setBoostSpec(SearchRequest.BoostSpec.newBuilder().build())
* .putAllParams(new HashMap())
* .setQueryExpansionSpec(SearchRequest.QueryExpansionSpec.newBuilder().build())
* .setSpellCorrectionSpec(SearchRequest.SpellCorrectionSpec.newBuilder().build())
* .setUserPseudoId("userPseudoId-1155274652")
* .setContentSearchSpec(SearchRequest.ContentSearchSpec.newBuilder().build())
* .setEmbeddingSpec(SearchRequest.EmbeddingSpec.newBuilder().build())
* .setRankingExpression("rankingExpression2110320494")
* .setSafeSearch(true)
* .putAllUserLabels(new HashMap())
* .setNaturalLanguageQueryUnderstandingSpec(
* SearchRequest.NaturalLanguageQueryUnderstandingSpec.newBuilder().build())
* .setSearchAsYouTypeSpec(SearchRequest.SearchAsYouTypeSpec.newBuilder().build())
* .setSession(
* SessionName.ofProjectLocationDataStoreSessionName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[SESSION]")
* .toString())
* .setSessionSpec(SearchRequest.SessionSpec.newBuilder().build())
* .build();
* ApiFuture future =
* searchServiceClient.searchPagedCallable().futureCall(request);
* // Do something.
* for (SearchResponse.SearchResult element : future.get().iterateAll()) {
* // doThingsWith(element);
* }
* }
* }
*/
public final UnaryCallable searchPagedCallable() {
return stub.searchPagedCallable();
}
// AUTO-GENERATED DOCUMENTATION AND METHOD.
/**
* Performs a search.
*
* Sample code:
*
*
{@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 (SearchServiceClient searchServiceClient = SearchServiceClient.create()) {
* SearchRequest request =
* SearchRequest.newBuilder()
* .setServingConfig(
* ServingConfigName.ofProjectLocationDataStoreServingConfigName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[SERVING_CONFIG]")
* .toString())
* .setBranch(
* BranchName.ofProjectLocationDataStoreBranchName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[BRANCH]")
* .toString())
* .setQuery("query107944136")
* .setImageQuery(SearchRequest.ImageQuery.newBuilder().build())
* .setPageSize(883849137)
* .setPageToken("pageToken873572522")
* .setOffset(-1019779949)
* .addAllDataStoreSpecs(new ArrayList())
* .setFilter("filter-1274492040")
* .setCanonicalFilter("canonicalFilter-722283124")
* .setOrderBy("orderBy-1207110587")
* .setUserInfo(UserInfo.newBuilder().build())
* .setLanguageCode("languageCode-2092349083")
* .setRegionCode("regionCode-1991004415")
* .addAllFacetSpecs(new ArrayList())
* .setBoostSpec(SearchRequest.BoostSpec.newBuilder().build())
* .putAllParams(new HashMap())
* .setQueryExpansionSpec(SearchRequest.QueryExpansionSpec.newBuilder().build())
* .setSpellCorrectionSpec(SearchRequest.SpellCorrectionSpec.newBuilder().build())
* .setUserPseudoId("userPseudoId-1155274652")
* .setContentSearchSpec(SearchRequest.ContentSearchSpec.newBuilder().build())
* .setEmbeddingSpec(SearchRequest.EmbeddingSpec.newBuilder().build())
* .setRankingExpression("rankingExpression2110320494")
* .setSafeSearch(true)
* .putAllUserLabels(new HashMap())
* .setNaturalLanguageQueryUnderstandingSpec(
* SearchRequest.NaturalLanguageQueryUnderstandingSpec.newBuilder().build())
* .setSearchAsYouTypeSpec(SearchRequest.SearchAsYouTypeSpec.newBuilder().build())
* .setSession(
* SessionName.ofProjectLocationDataStoreSessionName(
* "[PROJECT]", "[LOCATION]", "[DATA_STORE]", "[SESSION]")
* .toString())
* .setSessionSpec(SearchRequest.SessionSpec.newBuilder().build())
* .build();
* while (true) {
* SearchResponse response = searchServiceClient.searchCallable().call(request);
* for (SearchResponse.SearchResult element : response.getResultsList()) {
* // doThingsWith(element);
* }
* String nextPageToken = response.getNextPageToken();
* if (!Strings.isNullOrEmpty(nextPageToken)) {
* request = request.toBuilder().setPageToken(nextPageToken).build();
* } else {
* break;
* }
* }
* }
* }
*/
public final UnaryCallable searchCallable() {
return stub.searchCallable();
}
@Override
public final void close() {
stub.close();
}
@Override
public void shutdown() {
stub.shutdown();
}
@Override
public boolean isShutdown() {
return stub.isShutdown();
}
@Override
public boolean isTerminated() {
return stub.isTerminated();
}
@Override
public void shutdownNow() {
stub.shutdownNow();
}
@Override
public boolean awaitTermination(long duration, TimeUnit unit) throws InterruptedException {
return stub.awaitTermination(duration, unit);
}
public static class SearchPagedResponse
extends AbstractPagedListResponse<
SearchRequest,
SearchResponse,
SearchResponse.SearchResult,
SearchPage,
SearchFixedSizeCollection> {
public static ApiFuture createAsync(
PageContext context,
ApiFuture futureResponse) {
ApiFuture futurePage =
SearchPage.createEmptyPage().createPageAsync(context, futureResponse);
return ApiFutures.transform(
futurePage, input -> new SearchPagedResponse(input), MoreExecutors.directExecutor());
}
private SearchPagedResponse(SearchPage page) {
super(page, SearchFixedSizeCollection.createEmptyCollection());
}
}
public static class SearchPage
extends AbstractPage {
private SearchPage(
PageContext context,
SearchResponse response) {
super(context, response);
}
private static SearchPage createEmptyPage() {
return new SearchPage(null, null);
}
@Override
protected SearchPage createPage(
PageContext context,
SearchResponse response) {
return new SearchPage(context, response);
}
@Override
public ApiFuture createPageAsync(
PageContext context,
ApiFuture futureResponse) {
return super.createPageAsync(context, futureResponse);
}
}
public static class SearchFixedSizeCollection
extends AbstractFixedSizeCollection<
SearchRequest,
SearchResponse,
SearchResponse.SearchResult,
SearchPage,
SearchFixedSizeCollection> {
private SearchFixedSizeCollection(List pages, int collectionSize) {
super(pages, collectionSize);
}
private static SearchFixedSizeCollection createEmptyCollection() {
return new SearchFixedSizeCollection(null, 0);
}
@Override
protected SearchFixedSizeCollection createCollection(
List pages, int collectionSize) {
return new SearchFixedSizeCollection(pages, collectionSize);
}
}
}
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