feat: Enable REST transport for most of Java and Go clients (#656)

- [ ] Regenerate this pull request now. PiperOrigin-RevId: 456641589 Source-Link: googleapis/googleapis@8a251f5 Source-Link: https://github.com/googleapis/googleapis-gen/commit/4ca52a529cf01308d9714950edffbea3560cfbdb Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiNGNhNTJhNTI5Y2YwMTMwOGQ5NzE0OTUwZWRmZmJlYTM1NjBjZmJkYiJ9

Author: gcf-owl-bot[bot]

google-cloud-redis/pom.xml

@@ -62,6 +62,10 @@
  <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>
@@ -89,12 +93,24 @@
  <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-redis/src/main/java/com/google/cloud/redis/v1/CloudRedisClient.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.redis.v1.stub.CloudRedisStubSettings;
 import com.google.common.util.concurrent.MoreExecutors;
 import com.google.longrunning.Operation;
-import com.google.longrunning.OperationsClient;
 import com.google.protobuf.Empty;
 import com.google.protobuf.FieldMask;
 import com.google.protobuf.Timestamp;
@@ -122,13 +122,28 @@
  * CloudRedisClient cloudRedisClient = CloudRedisClient.create(cloudRedisSettings);
  * }</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.
+ * CloudRedisSettings cloudRedisSettings =
+ * CloudRedisSettings.newBuilder()
+ * .setTransportChannelProvider(
+ * CloudRedisSettings.defaultHttpJsonTransportProviderBuilder().build())
+ * .build();
+ * CloudRedisClient cloudRedisClient = CloudRedisClient.create(cloudRedisSettings);
+ * }</pre>
+ *
  * <p>Please refer to the GitHub repository's samples for more quickstart code snippets.
  */
 @Generated("by gapic-generator-java")
 public class CloudRedisClient implements BackgroundResource {
  private final CloudRedisSettings settings;
  private final CloudRedisStub stub;
- private final OperationsClient operationsClient;
+ private final OperationsClient httpJsonOperationsClient;
+ private final com.google.longrunning.OperationsClient operationsClient;
 
  /** Constructs an instance of CloudRedisClient with default settings. */
  public static final CloudRedisClient create() throws IOException {
@@ -158,13 +173,17 @@ public static final CloudRedisClient create(CloudRedisStub stub) {
  protected CloudRedisClient(CloudRedisSettings settings) throws IOException {
  this.settings = settings;
  this.stub = ((CloudRedisStubSettings) 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 CloudRedisClient(CloudRedisStub 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 CloudRedisSettings getSettings() {
@@ -179,10 +198,18 @@ public CloudRedisStub 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.
  /**
  * Lists all Redis instances owned by a project in either the specified location (region) or all

google-cloud-redis/src/main/java/com/google/cloud/redis/v1/CloudRedisSettings.java

@@ -23,6 +23,7 @@
 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;
@@ -203,11 +204,18 @@ public static GoogleCredentialsProvider.Builder defaultCredentialsProviderBuilde
  return CloudRedisStubSettings.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 CloudRedisStubSettings.defaultGrpcTransportProviderBuilder();
  }
 
+ /** Returns a builder for the default REST ChannelProvider for this service. */
+ @BetaApi
+ public static InstantiatingHttpJsonChannelProvider.Builder
+ defaultHttpJsonTransportProviderBuilder() {
+ return CloudRedisStubSettings.defaultHttpJsonTransportProviderBuilder();
+ }
+
  public static TransportChannelProvider defaultTransportChannelProvider() {
  return CloudRedisStubSettings.defaultTransportChannelProvider();
  }
@@ -217,11 +225,17 @@ public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuil
  return CloudRedisStubSettings.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);
@@ -259,6 +273,11 @@ private static Builder createDefault() {
  return new Builder(CloudRedisStubSettings.newBuilder());
  }
 
+ @BetaApi
+ private static Builder createHttpJsonDefault() {
+ return new Builder(CloudRedisStubSettings.newHttpJsonBuilder());
+ }
+
  public CloudRedisStubSettings.Builder getStubSettingsBuilder() {
  return ((CloudRedisStubSettings.Builder) getStubSettings());
  }

google-cloud-redis/src/main/java/com/google/cloud/redis/v1/stub/CloudRedisStub.java

@@ -51,7 +51,11 @@
 public abstract class CloudRedisStub 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<ListInstancesRequest, ListInstancesPagedResponse>

google-cloud-redis/src/main/java/com/google/cloud/redis/v1/stub/CloudRedisStubSettings.java

@@ -28,6 +28,9 @@
 import com.google.api.gax.grpc.GrpcTransportChannel;
 import com.google.api.gax.grpc.InstantiatingGrpcChannelProvider;
 import com.google.api.gax.grpc.ProtoOperationTransformers;
+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.longrunning.OperationSnapshot;
 import com.google.api.gax.longrunning.OperationTimedPollAlgorithm;
 import com.google.api.gax.retrying.RetrySettings;
@@ -306,6 +309,11 @@ public CloudRedisStub createStub() throws IOException {
  .equals(GrpcTransportChannel.getGrpcTransportName())) {
  return GrpcCloudRedisStub.create(this);
  }
+ if (getTransportChannelProvider()
+ .getTransportName()
+ .equals(HttpJsonTransportChannel.getHttpJsonTransportName())) {
+ return HttpJsonCloudRedisStub.create(this);
+ }
  throw new UnsupportedOperationException(
  String.format(
  "Transport not supported: %s", getTransportChannelProvider().getTransportName()));
@@ -338,30 +346,56 @@ 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(CloudRedisStubSettings.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(CloudRedisStubSettings.class))
+ .setTransportToken(
+ GaxHttpJsonProperties.getHttpJsonTokenName(),
+ GaxHttpJsonProperties.getHttpJsonVersion());
+ }
+
+ public static ApiClientHeaderProvider.Builder defaultApiClientHeaderProviderBuilder() {
+ return CloudRedisStubSettings.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);
@@ -562,6 +596,19 @@ 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
  .listInstancesSettings()