feat: Enable REST transport for most of Java and Go clients

google-cloud-batch-bom/pom.xml

@@ -72,11 +72,21 @@
         <artifactId>grpc-google-cloud-batch-v1</artifactId>
         <version>0.1.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-batch-v1:current} -->
       </dependency>
+      <dependency>
+        <groupId>com.google.api.grpc</groupId>
+        <artifactId>grpc-google-cloud-batch-v1alpha</artifactId>
+        <version>0.1.2-SNAPSHOT</version><!-- {x-version-update:grpc-google-cloud-batch-v1alpha:current} -->
+      </dependency>
       <dependency>
         <groupId>com.google.api.grpc</groupId>
         <artifactId>proto-google-cloud-batch-v1</artifactId>
         <version>0.1.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-batch-v1:current} -->
       </dependency>
+      <dependency>
+        <groupId>com.google.api.grpc</groupId>
+        <artifactId>proto-google-cloud-batch-v1alpha</artifactId>
+        <version>0.1.2-SNAPSHOT</version><!-- {x-version-update:proto-google-cloud-batch-v1alpha:current} -->
+      </dependency>
     </dependencies>
   </dependencyManagement>
 

google-cloud-batch/pom.xml

@@ -41,10 +41,19 @@
       <groupId>com.google.api.grpc</groupId>
       <artifactId>proto-google-common-protos</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>proto-google-cloud-batch-v1alpha</artifactId>
+    </dependency>
     <dependency>
       <groupId>com.google.api.grpc</groupId>
       <artifactId>grpc-google-common-protos</artifactId>
     </dependency>
+    <dependency>
+      <groupId>com.google.api.grpc</groupId>
+      <artifactId>grpc-google-cloud-batch-v1alpha</artifactId>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>com.google.api.grpc</groupId>
       <artifactId>grpc-google-iam-v1</artifactId>
@@ -65,6 +74,10 @@
       <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>
@@ -84,12 +97,24 @@
       <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>

google-cloud-batch/src/main/java/com/google/cloud/batch/v1/BatchServiceClient.java

@@ -19,6 +19,7 @@
 import com.google.api.core.ApiFuture;
 import com.google.api.core.ApiFutures;
 import com.google.api.gax.core.BackgroundResource;
+import com.google.api.gax.httpjson.longrunning.OperationsClient;
 import com.google.api.gax.longrunning.OperationFuture;
 import com.google.api.gax.paging.AbstractFixedSizeCollection;
 import com.google.api.gax.paging.AbstractPage;
@@ -30,7 +31,6 @@
 import com.google.cloud.batch.v1.stub.BatchServiceStubSettings;
 import com.google.common.util.concurrent.MoreExecutors;
 import com.google.longrunning.Operation;
-import com.google.longrunning.OperationsClient;
 import com.google.protobuf.Empty;
 import java.io.IOException;
 import java.util.List;
@@ -39,8 +39,8 @@
 
 // AUTO-GENERATED DOCUMENTATION AND CLASS.
 /**
- * Service Description: Google Cloud Batch Service. The service manages user submitted batch jobs
- * and allocates Google Compute Engine VM instances to run the jobs.
+ * Service Description: Google Batch Service. The service manages user submitted batch jobs and
+ * allocates Google Compute Engine VM instances to run the jobs.
  *
  * <p>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:
@@ -104,13 +104,28 @@
  * BatchServiceClient batchServiceClient = BatchServiceClient.create(batchServiceSettings);
  * }</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.
+ * BatchServiceSettings batchServiceSettings =
+ *     BatchServiceSettings.newBuilder()
+ *         .setTransportChannelProvider(
+ *             BatchServiceSettings.defaultHttpJsonTransportProviderBuilder().build())
+ *         .build();
+ * BatchServiceClient batchServiceClient = BatchServiceClient.create(batchServiceSettings);
+ * }</pre>
+ *
  * <p>Please refer to the GitHub repository's samples for more quickstart code snippets.
  */
 @Generated("by gapic-generator-java")
 public class BatchServiceClient implements BackgroundResource {
   private final BatchServiceSettings settings;
   private final BatchServiceStub stub;
-  private final OperationsClient operationsClient;
+  private final OperationsClient httpJsonOperationsClient;
+  private final com.google.longrunning.OperationsClient operationsClient;
 
   /** Constructs an instance of BatchServiceClient with default settings. */
   public static final BatchServiceClient create() throws IOException {
@@ -141,13 +156,17 @@ public static final BatchServiceClient create(BatchServiceStub stub) {
   protected BatchServiceClient(BatchServiceSettings settings) throws IOException {
     this.settings = settings;
     this.stub = ((BatchServiceStubSettings) settings.getStubSettings()).createStub();
-    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+    this.operationsClient =
+        com.google.longrunning.OperationsClient.create(this.stub.getOperationsStub());
+    this.httpJsonOperationsClient = OperationsClient.create(this.stub.getHttpJsonOperationsStub());
   }
 
   protected BatchServiceClient(BatchServiceStub stub) {
     this.settings = null;
     this.stub = stub;
-    this.operationsClient = OperationsClient.create(this.stub.getOperationsStub());
+    this.operationsClient =
+        com.google.longrunning.OperationsClient.create(this.stub.getOperationsStub());
+    this.httpJsonOperationsClient = OperationsClient.create(this.stub.getHttpJsonOperationsStub());
   }
 
   public final BatchServiceSettings getSettings() {
@@ -162,10 +181,18 @@ public BatchServiceStub getStub() {
    * Returns the OperationsClient that can be used to query the status of a long-running operation
    * returned by another API method call.
    */
-  public final OperationsClient getOperationsClient() {
+  public final com.google.longrunning.OperationsClient getOperationsClient() {
     return operationsClient;
   }
 
+  /**
+   * Returns the OperationsClient that can be used to query the status of a long-running operation
+   * returned by another API method call.
+   */
+  public final OperationsClient getHttpJsonOperationsClient() {
+    return httpJsonOperationsClient;
+  }
+
   // AUTO-GENERATED DOCUMENTATION AND METHOD.
   /**
    * Create a Job.
@@ -183,8 +210,8 @@ public final OperationsClient getOperationsClient() {
    * }
    * }</pre>
    *
-   * @param parent Required. The parent resource name where the Job will be created. Format:
-   *     projects/{project}/locations/{location}
+   * @param parent Required. The parent resource name where the Job will be created. Pattern:
+   *     "projects/{project}/locations/{location}"
    * @param job Required. The Job to create.
    * @param jobId ID used to uniquely identify the Job within its parent scope. This field should
    *     contain at most 63 characters. Only alphanumeric characters or '-' are accepted. The '-'
@@ -221,8 +248,8 @@ public final Job createJob(LocationName parent, Job job, String jobId) {
    * }
    * }</pre>
    *
-   * @param parent Required. The parent resource name where the Job will be created. Format:
-   *     projects/{project}/locations/{location}
+   * @param parent Required. The parent resource name where the Job will be created. Pattern:
+   *     "projects/{project}/locations/{location}"
    * @param job Required. The Job to create.
    * @param jobId ID used to uniquely identify the Job within its parent scope. This field should
    *     contain at most 63 characters. Only alphanumeric characters or '-' are accepted. The '-'
@@ -495,7 +522,7 @@ public final UnaryCallable<DeleteJobRequest, Operation> deleteJobCallable() {
 
   // AUTO-GENERATED DOCUMENTATION AND METHOD.
   /**
-   * List all Jobs for a project.
+   * List all Jobs for a project within a region.
    *
    * <p>Sample code:
    *
@@ -520,7 +547,7 @@ public final ListJobsPagedResponse listJobs(String parent) {
 
   // AUTO-GENERATED DOCUMENTATION AND METHOD.
   /**
-   * List all Jobs for a project.
+   * List all Jobs for a project within a region.
    *
    * <p>Sample code:
    *
@@ -550,7 +577,7 @@ public final ListJobsPagedResponse listJobs(ListJobsRequest request) {
 
   // AUTO-GENERATED DOCUMENTATION AND METHOD.
   /**
-   * List all Jobs for a project.
+   * List all Jobs for a project within a region.
    *
    * <p>Sample code:
    *
@@ -579,7 +606,7 @@ public final UnaryCallable<ListJobsRequest, ListJobsPagedResponse> listJobsPaged
 
   // AUTO-GENERATED DOCUMENTATION AND METHOD.
   /**
-   * List all Jobs for a project.
+   * List all Jobs for a project within a region.
    *
    * <p>Sample code:
    *
@@ -731,7 +758,8 @@ public final UnaryCallable<GetTaskRequest, Task> getTaskCallable() {
    * }
    * }</pre>
    *
-   * @param parent Required. Path of the TaskGroup from which Tasks are being requested.
+   * @param parent Required. Name of a TaskGroup from which Tasks are being requested. Pattern:
+   *     "projects/{project}/locations/{location}/jobs/{job}/taskGroups/{task_group}"
    * @throws com.google.api.gax.rpc.ApiException if the remote call fails
    */
   public final ListTasksPagedResponse listTasks(TaskGroupName parent) {
@@ -758,7 +786,8 @@ public final ListTasksPagedResponse listTasks(TaskGroupName parent) {
    * }
    * }</pre>
    *
-   * @param parent Required. Path of the TaskGroup from which Tasks are being requested.
+   * @param parent Required. Name of a TaskGroup from which Tasks are being requested. Pattern:
+   *     "projects/{project}/locations/{location}/jobs/{job}/taskGroups/{task_group}"
    * @throws com.google.api.gax.rpc.ApiException if the remote call fails
    */
   public final ListTasksPagedResponse listTasks(String parent) {

google-cloud-batch/src/main/java/com/google/cloud/batch/v1/BatchServiceSettings.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;
@@ -137,11 +138,18 @@ public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilde
     return BatchServiceStubSettings.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 BatchServiceStubSettings.defaultGrpcTransportProviderBuilder();
   }
 
+  /** Returns a builder for the default REST ChannelProvider for this service. */
+  @BetaApi
+  public static InstantiatingHttpJsonChannelProvider.Builder
+      defaultHttpJsonTransportProviderBuilder() {
+    return BatchServiceStubSettings.defaultHttpJsonTransportProviderBuilder();
+  }
+
   public static TransportChannelProvider defaultTransportChannelProvider() {
     return BatchServiceStubSettings.defaultTransportChannelProvider();
   }
@@ -151,11 +159,17 @@ public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuil
     return BatchServiceStubSettings.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);
@@ -193,6 +207,11 @@ private static Builder createDefault() {
       return new Builder(BatchServiceStubSettings.newBuilder());
     }
 
+    @BetaApi
+    private static Builder createHttpJsonDefault() {
+      return new Builder(BatchServiceStubSettings.newHttpJsonBuilder());
+    }
+
     public BatchServiceStubSettings.Builder getStubSettingsBuilder() {
       return ((BatchServiceStubSettings.Builder) getStubSettings());
     }

google-cloud-batch/src/main/java/com/google/cloud/batch/v1/package-info.java

@@ -21,8 +21,8 @@
  *
  * <p>======================= BatchServiceClient =======================
  *
- * <p>Service Description: Google Cloud Batch Service. The service manages user submitted batch jobs
- * and allocates Google Compute Engine VM instances to run the jobs.
+ * <p>Service Description: Google Batch Service. The service manages user submitted batch jobs and
+ * allocates Google Compute Engine VM instances to run the jobs.
  *
  * <p>Sample for BatchServiceClient:
  *

google-cloud-batch/src/main/java/com/google/cloud/batch/v1/stub/BatchServiceStub.java

@@ -48,7 +48,11 @@
 public abstract class BatchServiceStub implements BackgroundResource {
 
   public OperationsStub getOperationsStub() {
-    throw new UnsupportedOperationException("Not implemented: getOperationsStub()");
+    return null;
+  }
+
+  public com.google.api.gax.httpjson.longrunning.stub.OperationsStub getHttpJsonOperationsStub() {
+    return null;
   }
 
   public UnaryCallable<CreateJobRequest, Job> createJobCallable() {