feat: [retail] add merchant center link service (#9328)

* feat: support per-entity search and autocomplete
feat: add model get API
feat: support new filter syntax for recommendation
feat: expose A/B experiment info in search response
docs: keep the API doc up-to-date with recent changes

PiperOrigin-RevId: 522675546

Source-Link: googleapis/googleapis@81b0808

Source-Link: https://github.com/googleapis/googleapis-gen/commit/e950439cd0d486ab8d2b32672b54c0a6b6451420
Copy-Tag: eyJwIjoiamF2YS1yZXRhaWwvLk93bEJvdC55YW1sIiwiaCI6ImU5NTA0MzljZDBkNDg2YWI4ZDJiMzI2NzJiNTRjMGE2YjY0NTE0MjAifQ==

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* feat: add model service
feat: support per-entity search and autocomplete
feat: support new filter syntax for recommendation
feat: expose A/B experiment info in search response
docs: keep the API doc up-to-date with recent changes

PiperOrigin-RevId: 522675951

Source-Link: googleapis/googleapis@f149e91

Source-Link: https://github.com/googleapis/googleapis-gen/commit/c4538a888d2ec13ce719c1a1aa9dc7de5b17375a
Copy-Tag: eyJwIjoiamF2YS1yZXRhaWwvLk93bEJvdC55YW1sIiwiaCI6ImM0NTM4YTg4OGQyZWMxM2NlNzE5YzFhMWFhOWRjN2RlNWIxNzM3NWEifQ==

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* feat: add merchant center link service
feat: support per-entity search and autocomplete
feat: expose facets and product counts in autocomplete
feat: add model get API
feat: allow cascaded deletion on primary product
feat: support new filter syntax for recommendation
feat: expose A/B experiment info in search response
docs: keep the API doc up-to-date with recent changes

PiperOrigin-RevId: 523140513

Source-Link: googleapis/googleapis@4a9f933

Source-Link: https://github.com/googleapis/googleapis-gen/commit/ffb754a7d2cd79380fb5ccfd33a1c0908dbb62a5
Copy-Tag: eyJwIjoiamF2YS1yZXRhaWwvLk93bEJvdC55YW1sIiwiaCI6ImZmYjc1NGE3ZDJjZDc5MzgwZmI1Y2NmZDMzYTFjMDkwOGRiYjYyYTUifQ==

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

* 🦉 Updates from OwlBot post-processor

See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md

---------

Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com>

Author: gcf-owl-bot[bot]

java-retail/README.md

@@ -20,7 +20,7 @@ If you are using Maven with [BOM][libraries-bom], add this to your pom.xml file:
     <dependency>
       <groupId>com.google.cloud</groupId>
       <artifactId>libraries-bom</artifactId>
-      <version>26.11.0</version>
+      <version>26.12.0</version>
       <type>pom</type>
       <scope>import</scope>
     </dependency>

java-retail/google-cloud-retail/src/main/java/com/google/cloud/retail/v2/CompletionServiceClient.java

@@ -31,7 +31,7 @@
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
- * Service Description: Auto-completion service for retail.
+ * Service Description: Autocomplete service for retail.
  *
  * <p>This feature is only available for users who have Retail Search enabled. Enable Retail Search
  * on Cloud Console before using this feature.
@@ -55,6 +55,7 @@
  *           .setDeviceType("deviceType781190832")
  *           .setDataset("dataset1443214456")
  *           .setMaxSuggestions(618824852)
+ *           .setEntity("entity-1298275357")
  *           .build();
  *   CompleteQueryResponse response = completionServiceClient.completeQuery(request);
  * }
@@ -234,6 +235,7 @@ public final OperationsClient getHttpJsonOperationsClient() {
    *           .setDeviceType("deviceType781190832")
    *           .setDataset("dataset1443214456")
    *           .setMaxSuggestions(618824852)
+   *           .setEntity("entity-1298275357")
    *           .build();
    *   CompleteQueryResponse response = completionServiceClient.completeQuery(request);
    * }
@@ -271,6 +273,7 @@ public final CompleteQueryResponse completeQuery(CompleteQueryRequest request) {
    *           .setDeviceType("deviceType781190832")
    *           .setDataset("dataset1443214456")
    *           .setMaxSuggestions(618824852)
+   *           .setEntity("entity-1298275357")
    *           .build();
    *   ApiFuture<CompleteQueryResponse> future =
    *       completionServiceClient.completeQueryCallable().futureCall(request);

java-retail/google-cloud-retail/src/main/java/com/google/cloud/retail/v2/ModelServiceClient.java

@@ -0,0 +1,306 @@
+/*
+ * Copyright 2022 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.retail.v2;
+
+import static com.google.cloud.retail.v2.ModelServiceClient.ListModelsPagedResponse;
+
+import com.google.api.core.ApiFunction;
+import com.google.api.core.BetaApi;
+import com.google.api.gax.core.GoogleCredentialsProvider;
+import com.google.api.gax.core.InstantiatingExecutorProvider;
+import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.httpjson.InstantiatingHttpJsonChannelProvider;
+import com.google.api.gax.rpc.ApiClientHeaderProvider;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.ClientSettings;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.TransportChannelProvider;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.cloud.retail.v2.stub.ModelServiceStubSettings;
+import com.google.longrunning.Operation;
+import com.google.protobuf.Empty;
+import java.io.IOException;
+import java.util.List;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * Settings class to configure an instance of {@link ModelServiceClient}.
+ *
+ * <p>The default instance has everything set to sensible defaults:
+ *
+ * <ul>
+ *   <li>The default service address (retail.googleapis.com) and default port (443) are used.
+ *   <li>Credentials are acquired automatically through Application Default Credentials.
+ *   <li>Retries are configured for idempotent methods but not for non-idempotent methods.
+ * </ul>
+ *
+ * <p>The builder of this class is recursive, so contained classes are themselves builders. When
+ * build() is called, the tree of builders is called to create the complete settings object.
+ *
+ * <p>For example, to set the total timeout of getModel to 30 seconds:
+ *
+ * <pre>{@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
+ * ModelServiceSettings.Builder modelServiceSettingsBuilder = ModelServiceSettings.newBuilder();
+ * modelServiceSettingsBuilder
+ *     .getModelSettings()
+ *     .setRetrySettings(
+ *         modelServiceSettingsBuilder
+ *             .getModelSettings()
+ *             .getRetrySettings()
+ *             .toBuilder()
+ *             .setTotalTimeout(Duration.ofSeconds(30))
+ *             .build());
+ * ModelServiceSettings modelServiceSettings = modelServiceSettingsBuilder.build();
+ * }</pre>
+ */
+@Generated("by gapic-generator-java")
+public class ModelServiceSettings extends ClientSettings<ModelServiceSettings> {
+
+  /** Returns the object with the settings used for calls to createModel. */
+  public UnaryCallSettings<CreateModelRequest, Operation> createModelSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).createModelSettings();
+  }
+
+  /** Returns the object with the settings used for calls to createModel. */
+  public OperationCallSettings<CreateModelRequest, Model, CreateModelMetadata>
+      createModelOperationSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).createModelOperationSettings();
+  }
+
+  /** Returns the object with the settings used for calls to getModel. */
+  public UnaryCallSettings<GetModelRequest, Model> getModelSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).getModelSettings();
+  }
+
+  /** Returns the object with the settings used for calls to pauseModel. */
+  public UnaryCallSettings<PauseModelRequest, Model> pauseModelSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).pauseModelSettings();
+  }
+
+  /** Returns the object with the settings used for calls to resumeModel. */
+  public UnaryCallSettings<ResumeModelRequest, Model> resumeModelSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).resumeModelSettings();
+  }
+
+  /** Returns the object with the settings used for calls to deleteModel. */
+  public UnaryCallSettings<DeleteModelRequest, Empty> deleteModelSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).deleteModelSettings();
+  }
+
+  /** Returns the object with the settings used for calls to listModels. */
+  public PagedCallSettings<ListModelsRequest, ListModelsResponse, ListModelsPagedResponse>
+      listModelsSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).listModelsSettings();
+  }
+
+  /** Returns the object with the settings used for calls to updateModel. */
+  public UnaryCallSettings<UpdateModelRequest, Model> updateModelSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).updateModelSettings();
+  }
+
+  /** Returns the object with the settings used for calls to tuneModel. */
+  public UnaryCallSettings<TuneModelRequest, Operation> tuneModelSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).tuneModelSettings();
+  }
+
+  /** Returns the object with the settings used for calls to tuneModel. */
+  public OperationCallSettings<TuneModelRequest, TuneModelResponse, TuneModelMetadata>
+      tuneModelOperationSettings() {
+    return ((ModelServiceStubSettings) getStubSettings()).tuneModelOperationSettings();
+  }
+
+  public static final ModelServiceSettings create(ModelServiceStubSettings stub)
+      throws IOException {
+    return new ModelServiceSettings.Builder(stub.toBuilder()).build();
+  }
+
+  /** Returns a builder for the default ExecutorProvider for this service. */
+  public static InstantiatingExecutorProvider.Builder defaultExecutorProviderBuilder() {
+    return ModelServiceStubSettings.defaultExecutorProviderBuilder();
+  }
+
+  /** Returns the default service endpoint. */
+  public static String getDefaultEndpoint() {
+    return ModelServiceStubSettings.getDefaultEndpoint();
+  }
+
+  /** Returns the default service scopes. */
+  public static List<String> getDefaultServiceScopes() {
+    return ModelServiceStubSettings.getDefaultServiceScopes();
+  }
+
+  /** Returns a builder for the default credentials for this service. */
+  public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilder() {
+    return ModelServiceStubSettings.defaultCredentialsProviderBuilder();
+  }
+
+  /** Returns a builder for the default gRPC ChannelProvider for this service. */
+  public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
+    return ModelServiceStubSettings.defaultGrpcTransportProviderBuilder();
+  }
+
+  /** Returns a builder for the default REST ChannelProvider for this service. */
+  @BetaApi
+  public static InstantiatingHttpJsonChannelProvider.Builder
+      defaultHttpJsonTransportProviderBuilder() {
+    return ModelServiceStubSettings.defaultHttpJsonTransportProviderBuilder();
+  }
+
+  public static TransportChannelProvider defaultTransportChannelProvider() {
+    return ModelServiceStubSettings.defaultTransportChannelProvider();
+  }
+
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return ModelServiceStubSettings.defaultApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new gRPC builder for this class. */
+  public static Builder newBuilder() {
+    return Builder.createDefault();
+  }
+
+  /** Returns a new REST builder for this class. */
+  @BetaApi
+  public static Builder newHttpJsonBuilder() {
+    return Builder.createHttpJsonDefault();
+  }
+
+  /** Returns a new builder for this class. */
+  public static Builder newBuilder(ClientContext clientContext) {
+    return new Builder(clientContext);
+  }
+
+  /** Returns a builder containing all the values of this settings class. */
+  public Builder toBuilder() {
+    return new Builder(this);
+  }
+
+  protected ModelServiceSettings(Builder settingsBuilder) throws IOException {
+    super(settingsBuilder);
+  }
+
+  /** Builder for ModelServiceSettings. */
+  public static class Builder extends ClientSettings.Builder<ModelServiceSettings, Builder> {
+
+    protected Builder() throws IOException {
+      this(((ClientContext) null));
+    }
+
+    protected Builder(ClientContext clientContext) {
+      super(ModelServiceStubSettings.newBuilder(clientContext));
+    }
+
+    protected Builder(ModelServiceSettings settings) {
+      super(settings.getStubSettings().toBuilder());
+    }
+
+    protected Builder(ModelServiceStubSettings.Builder stubSettings) {
+      super(stubSettings);
+    }
+
+    private static Builder createDefault() {
+      return new Builder(ModelServiceStubSettings.newBuilder());
+    }
+
+    @BetaApi
+    private static Builder createHttpJsonDefault() {
+      return new Builder(ModelServiceStubSettings.newHttpJsonBuilder());
+    }
+
+    public ModelServiceStubSettings.Builder getStubSettingsBuilder() {
+      return ((ModelServiceStubSettings.Builder) getStubSettings());
+    }
+
+    /**
+     * Applies the given settings updater function to all of the unary API methods in this service.
+     *
+     * <p>Note: This method does not support applying settings to streaming methods.
+     */
+    public Builder applyToAllUnaryMethods(
+        ApiFunction<UnaryCallSettings.Builder<?, ?>, Void> settingsUpdater) {
+      super.applyToAllUnaryMethods(
+          getStubSettingsBuilder().unaryMethodSettingsBuilders(), settingsUpdater);
+      return this;
+    }
+
+    /** Returns the builder for the settings used for calls to createModel. */
+    public UnaryCallSettings.Builder<CreateModelRequest, Operation> createModelSettings() {
+      return getStubSettingsBuilder().createModelSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to createModel. */
+    public OperationCallSettings.Builder<CreateModelRequest, Model, CreateModelMetadata>
+        createModelOperationSettings() {
+      return getStubSettingsBuilder().createModelOperationSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to getModel. */
+    public UnaryCallSettings.Builder<GetModelRequest, Model> getModelSettings() {
+      return getStubSettingsBuilder().getModelSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to pauseModel. */
+    public UnaryCallSettings.Builder<PauseModelRequest, Model> pauseModelSettings() {
+      return getStubSettingsBuilder().pauseModelSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to resumeModel. */
+    public UnaryCallSettings.Builder<ResumeModelRequest, Model> resumeModelSettings() {
+      return getStubSettingsBuilder().resumeModelSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to deleteModel. */
+    public UnaryCallSettings.Builder<DeleteModelRequest, Empty> deleteModelSettings() {
+      return getStubSettingsBuilder().deleteModelSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to listModels. */
+    public PagedCallSettings.Builder<ListModelsRequest, ListModelsResponse, ListModelsPagedResponse>
+        listModelsSettings() {
+      return getStubSettingsBuilder().listModelsSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to updateModel. */
+    public UnaryCallSettings.Builder<UpdateModelRequest, Model> updateModelSettings() {
+      return getStubSettingsBuilder().updateModelSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to tuneModel. */
+    public UnaryCallSettings.Builder<TuneModelRequest, Operation> tuneModelSettings() {
+      return getStubSettingsBuilder().tuneModelSettings();
+    }
+
+    /** Returns the builder for the settings used for calls to tuneModel. */
+    public OperationCallSettings.Builder<TuneModelRequest, TuneModelResponse, TuneModelMetadata>
+        tuneModelOperationSettings() {
+      return getStubSettingsBuilder().tuneModelOperationSettings();
+    }
+
+    @Override
+    public ModelServiceSettings build() throws IOException {
+      return new ModelServiceSettings(this);
+    }
+  }
+}