feat: Enable REST transport for most of Java and Go clients (#690)

* chore(deps): upgrade gapic-generator-java to 2.8.0 and update gax-java to 2.18.1 PiperOrigin-RevId: 450543911 Source-Link: googleapis/googleapis@5528344 Source-Link: googleapis/googleapis-gen@9f6775c Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiOWY2Nzc1Y2FiMTk1ODk4MmI4ODk2N2E0M2U1ZTgwNmFmMGYxMzVkYiJ9 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * chore: Integrate new gapic-generator-java and rules_gapic PiperOrigin-RevId: 454027580 Source-Link: googleapis/googleapis@1b22277 Source-Link: googleapis/googleapis-gen@e04cea2 Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiZTA0Y2VhMjBkMGQxMmViNWMzYmRiMzYwYTllNzJiNjU0ZWRjYjYzOCJ9 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * feat: Enable REST transport for most of Java and Go clients PiperOrigin-RevId: 456641589 Source-Link: googleapis/googleapis@8a251f5 Source-Link: googleapis/googleapis-gen@4ca52a5 Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNGNhNTJhNTI5Y2YwMTMwOGQ5NzE0OTUwZWRmZmJlYTM1NjBjZmJkYiJ9 * 🦉 Updates from OwlBot post-processor See https://github.com/googleapis/repo-automation-bots/blob/main/packages/owl-bot/README.md * Update pom.xml Co-authored-by: Owl Bot <gcf-owl-bot[bot]@users.noreply.github.com> Co-authored-by: Neenu Shaji <[email protected]>
googleapis · Jun 28, 2022 · 32f6d5c · 32f6d5c
1 parent 0a54a83
commit 32f6d5c
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diff --git a/java-tasks/google-cloud-tasks/pom.xml b/java-tasks/google-cloud-tasks/pom.xml
@@ -66,6 +66,10 @@
       <groupId>com.google.api</groupId>
       <artifactId>gax-grpc</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.google.api</groupId>
+      <artifactId>gax-httpjson</artifactId>
+    </dependency>
     <dependency>
       <groupId>org.threeten</groupId>
       <artifactId>threetenbp</artifactId>
@@ -102,12 +106,24 @@
       <scope>test</scope>
     </dependency>
     <!-- Need testing utility classes for generated gRPC clients tests -->
+    <dependency>
+      <groupId>com.google.api</groupId>
+      <artifactId>gax</artifactId>
+      <classifier>testlib</classifier>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>com.google.api</groupId>
       <artifactId>gax-grpc</artifactId>
       <classifier>testlib</classifier>
       <scope>test</scope>
     </dependency>
+    <dependency>
+    <groupId>com.google.api</groupId>
+      <artifactId>gax-httpjson</artifactId>
+      <classifier>testlib</classifier>
+      <scope>test</scope>
+    </dependency>
   </dependencies>
 
   <profiles>

diff --git a/java-tasks/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksClient.java b/java-tasks/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksClient.java
@@ -18,7 +18,6 @@
 
 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;
@@ -106,6 +105,20 @@
  * CloudTasksClient cloudTasksClient = CloudTasksClient.create(cloudTasksSettings);
  * }</pre>
  *
+ * <p>To use REST (HTTP1.1/JSON) transport (instead of gRPC) for sending and receiving requests over
+ * the wire:
+ *
+ * <pre>{@code
+ * // This snippet has been automatically generated for illustrative purposes only.
+ * // It may require modifications to work in your environment.
+ * CloudTasksSettings cloudTasksSettings =
+ *     CloudTasksSettings.newBuilder()
+ *         .setTransportChannelProvider(
+ *             CloudTasksSettings.defaultHttpJsonTransportProviderBuilder().build())
+ *         .build();
+ * CloudTasksClient cloudTasksClient = CloudTasksClient.create(cloudTasksSettings);
+ * }</pre>
+ *
  * <p>Please refer to the GitHub repository's samples for more quickstart code snippets.
  */
 @Generated("by gapic-generator-java")
@@ -130,7 +143,6 @@ public static final CloudTasksClient create(CloudTasksSettings settings) throws
    * Constructs an instance of CloudTasksClient, using the given stub for making calls. This is for
    * advanced usage - prefer using create(CloudTasksSettings).
    */
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public static final CloudTasksClient create(CloudTasksStub stub) {
     return new CloudTasksClient(stub);
   }
@@ -144,7 +156,6 @@ protected CloudTasksClient(CloudTasksSettings settings) throws IOException {
     this.stub = ((CloudTasksStubSettings) settings.getStubSettings()).createStub();
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   protected CloudTasksClient(CloudTasksStub stub) {
     this.settings = null;
     this.stub = stub;
@@ -154,7 +165,6 @@ public final CloudTasksSettings getSettings() {
     return settings;
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public CloudTasksStub getStub() {
     return stub;
   }
@@ -300,7 +310,7 @@ public final UnaryCallable<ListQueuesRequest, ListQueuesPagedResponse> listQueue
    *           .build();
    *   while (true) {
    *     ListQueuesResponse response = cloudTasksClient.listQueuesCallable().call(request);
-   *     for (Queue element : response.getResponsesList()) {
+   *     for (Queue element : response.getQueuesList()) {
    *       // doThingsWith(element);
    *     }
    *     String nextPageToken = response.getNextPageToken();
@@ -1785,7 +1795,7 @@ public final UnaryCallable<ListTasksRequest, ListTasksPagedResponse> listTasksPa
    *           .build();
    *   while (true) {
    *     ListTasksResponse response = cloudTasksClient.listTasksCallable().call(request);
-   *     for (Task element : response.getResponsesList()) {
+   *     for (Task element : response.getTasksList()) {
    *       // doThingsWith(element);
    *     }
    *     String nextPageToken = response.getNextPageToken();

diff --git a/...-tasks/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksSettings.java b/...-tasks/google-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/CloudTasksSettings.java
@@ -24,6 +24,7 @@
 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;
@@ -184,11 +185,18 @@ public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilde
     return CloudTasksStubSettings.defaultCredentialsProviderBuilder();
   }
 
-  /** Returns a builder for the default ChannelProvider for this service. */
+  /** Returns a builder for the default gRPC ChannelProvider for this service. */
   public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
     return CloudTasksStubSettings.defaultGrpcTransportProviderBuilder();
   }
 
+  /** Returns a builder for the default REST ChannelProvider for this service. */
+  @BetaApi
+  public static InstantiatingHttpJsonChannelProvider.Builder
+      defaultHttpJsonTransportProviderBuilder() {
+    return CloudTasksStubSettings.defaultHttpJsonTransportProviderBuilder();
+  }
+
   public static TransportChannelProvider defaultTransportChannelProvider() {
     return CloudTasksStubSettings.defaultTransportChannelProvider();
   }
@@ -198,11 +206,17 @@ public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuil
     return CloudTasksStubSettings.defaultApiClientHeaderProviderBuilder();
   }
 
-  /** Returns a new builder for this class. */
+  /** 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);
@@ -240,6 +254,11 @@ private static Builder createDefault() {
       return new Builder(CloudTasksStubSettings.newBuilder());
     }
 
+    @BetaApi
+    private static Builder createHttpJsonDefault() {
+      return new Builder(CloudTasksStubSettings.newHttpJsonBuilder());
+    }
+
     public CloudTasksStubSettings.Builder getStubSettingsBuilder() {
       return ((CloudTasksStubSettings.Builder) getStubSettings());
     }

diff --git a/...ogle-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/CloudTasksStubSettings.java b/...ogle-cloud-tasks/src/main/java/com/google/cloud/tasks/v2/stub/CloudTasksStubSettings.java
@@ -28,6 +28,9 @@
 import com.google.api.gax.grpc.GaxGrpcProperties;
 import com.google.api.gax.grpc.GrpcTransportChannel;
 import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
+import com.google.api.gax.httpjson.GaxHttpJsonProperties;
+import com.google.api.gax.httpjson.HttpJsonTransportChannel;
+import com.google.api.gax.httpjson.InstantiatingHttpJsonChannelProvider;
 import com.google.api.gax.retrying.RetrySettings;
 import com.google.api.gax.rpc.ApiCallContext;
 import com.google.api.gax.rpc.ApiClientHeaderProvider;
@@ -321,13 +324,17 @@ public UnaryCallSettings<RunTaskRequest, Task> runTaskSettings() {
     return runTaskSettings;
   }
 
-  @BetaApi("A restructuring of stub classes is planned, so this may break in the future")
   public CloudTasksStub createStub() throws IOException {
     if (getTransportChannelProvider()
         .getTransportName()
         .equals(GrpcTransportChannel.getGrpcTransportName())) {
       return GrpcCloudTasksStub.create(this);
     }
+    if (getTransportChannelProvider()
+        .getTransportName()
+        .equals(HttpJsonTransportChannel.getHttpJsonTransportName())) {
+      return HttpJsonCloudTasksStub.create(this);
+    }
     throw new UnsupportedOperationException(
         String.format(
             "Transport not supported: %s", getTransportChannelProvider().getTransportName()));
@@ -360,30 +367,56 @@ public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilde
         .setUseJwtAccessWithScope(true);
   }
 
-  /** Returns a builder for the default ChannelProvider for this service. */
+  /** Returns a builder for the default gRPC ChannelProvider for this service. */
   public static InstantiatingGrpcChannelProvider.Builder defaultGrpcTransportProviderBuilder() {
     return InstantiatingGrpcChannelProvider.newBuilder()
         .setMaxInboundMessageSize(Integer.MAX_VALUE);
   }
 
+  /** Returns a builder for the default REST ChannelProvider for this service. */
+  @BetaApi
+  public static InstantiatingHttpJsonChannelProvider.Builder
+      defaultHttpJsonTransportProviderBuilder() {
+    return InstantiatingHttpJsonChannelProvider.newBuilder();
+  }
+
   public static TransportChannelProvider defaultTransportChannelProvider() {
     return defaultGrpcTransportProviderBuilder().build();
   }
 
   @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
-  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+  public static ApiClientHeaderProvider.Builder defaultGrpcApiClientHeaderProviderBuilder() {
     return ApiClientHeaderProvider.newBuilder()
         .setGeneratedLibToken(
             "gapic", GaxProperties.getLibraryVersion(CloudTasksStubSettings.class))
         .setTransportToken(
             GaxGrpcProperties.getGrpcTokenName(), GaxGrpcProperties.getGrpcVersion());
   }
 
-  /** Returns a new builder for this class. */
+  @BetaApi("The surface for customizing headers is not stable yet and may change in the future.")
+  public static ApiClientHeaderProvider.Builder defaultHttpJsonApiClientHeaderProviderBuilder() {
+    return ApiClientHeaderProvider.newBuilder()
+        .setGeneratedLibToken(
+            "gapic", GaxProperties.getLibraryVersion(CloudTasksStubSettings.class))
+        .setTransportToken(
+            GaxHttpJsonProperties.getHttpJsonTokenName(),
+            GaxHttpJsonProperties.getHttpJsonVersion());
+  }
+
+  public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+    return CloudTasksStubSettings.defaultGrpcApiClientHeaderProviderBuilder();
+  }
+
+  /** Returns a new gRPC builder for this class. */
   public static Builder newBuilder() {
     return Builder.createDefault();
   }
 
+  /** Returns a new REST builder for this class. */
+  public static Builder newHttpJsonBuilder() {
+    return Builder.createHttpJsonDefault();
+  }
+
   /** Returns a new builder for this class. */
   public static Builder newBuilder(ClientContext clientContext) {
     return new Builder(clientContext);
@@ -580,6 +613,19 @@ private static Builder createDefault() {
       return initDefaults(builder);
     }
 
+    private static Builder createHttpJsonDefault() {
+      Builder builder = new Builder(((ClientContext) null));
+
+      builder.setTransportChannelProvider(defaultHttpJsonTransportProviderBuilder().build());
+      builder.setCredentialsProvider(defaultCredentialsProviderBuilder().build());
+      builder.setInternalHeaderProvider(defaultHttpJsonApiClientHeaderProviderBuilder().build());
+      builder.setEndpoint(getDefaultEndpoint());
+      builder.setMtlsEndpoint(getDefaultMtlsEndpoint());
+      builder.setSwitchToMtlsEndpointAllowed(true);
+
+      return initDefaults(builder);
+    }
+
     private static Builder initDefaults(Builder builder) {
       builder
           .listQueuesSettings()

diff --git a/...tasks/src/main/java/com/google/cloud/tasks/v2/stub/HttpJsonCloudTasksCallableFactory.java b/...tasks/src/main/java/com/google/cloud/tasks/v2/stub/HttpJsonCloudTasksCallableFactory.java
@@ -0,0 +1,105 @@
+/*
+ * 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.tasks.v2.stub;
+
+import com.google.api.core.BetaApi;
+import com.google.api.gax.httpjson.HttpJsonCallSettings;
+import com.google.api.gax.httpjson.HttpJsonCallableFactory;
+import com.google.api.gax.httpjson.HttpJsonOperationSnapshotCallable;
+import com.google.api.gax.httpjson.HttpJsonStubCallableFactory;
+import com.google.api.gax.httpjson.longrunning.stub.OperationsStub;
+import com.google.api.gax.rpc.BatchingCallSettings;
+import com.google.api.gax.rpc.ClientContext;
+import com.google.api.gax.rpc.OperationCallSettings;
+import com.google.api.gax.rpc.OperationCallable;
+import com.google.api.gax.rpc.PagedCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallSettings;
+import com.google.api.gax.rpc.ServerStreamingCallable;
+import com.google.api.gax.rpc.UnaryCallSettings;
+import com.google.api.gax.rpc.UnaryCallable;
+import com.google.longrunning.Operation;
+import javax.annotation.Generated;
+
+// AUTO-GENERATED DOCUMENTATION AND CLASS.
+/**
+ * REST callable factory implementation for the CloudTasks service API.
+ *
+ * <p>This class is for advanced usage.
+ */
+@Generated("by gapic-generator-java")
+@BetaApi
+public class HttpJsonCloudTasksCallableFactory
+    implements HttpJsonStubCallableFactory<Operation, OperationsStub> {
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createUnaryCallable(
+      HttpJsonCallSettings<RequestT, ResponseT> httpJsonCallSettings,
+      UnaryCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return HttpJsonCallableFactory.createUnaryCallable(
+        httpJsonCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT, PagedListResponseT>
+      UnaryCallable<RequestT, PagedListResponseT> createPagedCallable(
+          HttpJsonCallSettings<RequestT, ResponseT> httpJsonCallSettings,
+          PagedCallSettings<RequestT, ResponseT, PagedListResponseT> callSettings,
+          ClientContext clientContext) {
+    return HttpJsonCallableFactory.createPagedCallable(
+        httpJsonCallSettings, callSettings, clientContext);
+  }
+
+  @Override
+  public <RequestT, ResponseT> UnaryCallable<RequestT, ResponseT> createBatchingCallable(
+      HttpJsonCallSettings<RequestT, ResponseT> httpJsonCallSettings,
+      BatchingCallSettings<RequestT, ResponseT> callSettings,
+      ClientContext clientContext) {
+    return HttpJsonCallableFactory.createBatchingCallable(
+        httpJsonCallSettings, callSettings, clientContext);
+  }
+
+  @BetaApi(
+      "The surface for long-running operations is not stable yet and may change in the future.")
+  @Override
+  public <RequestT, ResponseT, MetadataT>
+      OperationCallable<RequestT, ResponseT, MetadataT> createOperationCallable(
+          HttpJsonCallSettings<RequestT, Operation> httpJsonCallSettings,
+          OperationCallSettings<RequestT, ResponseT, MetadataT> callSettings,
+          ClientContext clientContext,
+          OperationsStub operationsStub) {
+    UnaryCallable<RequestT, Operation> innerCallable =
+        HttpJsonCallableFactory.createBaseUnaryCallable(
+            httpJsonCallSettings, callSettings.getInitialCallSettings(), clientContext);
+    HttpJsonOperationSnapshotCallable<RequestT, Operation> initialCallable =
+        new HttpJsonOperationSnapshotCallable<RequestT, Operation>(
+            innerCallable,
+            httpJsonCallSettings.getMethodDescriptor().getOperationSnapshotFactory());
+    return HttpJsonCallableFactory.createOperationCallable(
+        callSettings, clientContext, operationsStub.longRunningClient(), initialCallable);
+  }
+
+  @Override
+  public <RequestT, ResponseT>
+      ServerStreamingCallable<RequestT, ResponseT> createServerStreamingCallable(
+          HttpJsonCallSettings<RequestT, ResponseT> httpJsonCallSettings,
+          ServerStreamingCallSettings<RequestT, ResponseT> callSettings,
+          ClientContext clientContext) {
+    return HttpJsonCallableFactory.createServerStreamingCallable(
+        httpJsonCallSettings, callSettings, clientContext);
+  }
+}