Implement modifyAckDeadline methods, add javadoc and tests

gcloud-java-pubsub/src/main/java/com/google/cloud/pubsub/PubSub.java

@@ -403,14 +403,78 @@ interface MessageConsumer extends AutoCloseable {
 
   Future<Void> nackAsync(String subscription, Iterable<String> ackIds);
 
+  /**
+   * Modifies the acknowledge deadline of the given messages. {@code deadline} must be >= 0 and is
+   * the new deadline with respect to the time the modify request was received by the Pub/Sub
+   * service. For example, if {@code deadline} is 10 and {@code unit} is {@link TimeUnit#SECONDS},
+   * the new ack deadline will expire 10 seconds after the modify request was received by the
+   * service. Specifying 0 may be used to make the message available for another pull request
+   * (corresponds to calling {@link #nack(String, String, String...)}).
+   *
+   * @param subscription the subscription whose messages need to update their acknowledge deadline
+   * @param deadline the new deadline, relative to the time the modify request is received by the
+   *     Pub/Sub service
+   * @param unit time unit for the {@code deadline} parameter
+   * @param ackId the ack id of the first message for which the acknowledge deadline must be
+   *     modified
+   * @param ackIds other ack ids of messages for which the acknowledge deadline must be modified
+   * @throws PubSubException upon failure, or if the subscription was not found
+   */
   void modifyAckDeadline(String subscription, int deadline, TimeUnit unit, String ackId,
       String... ackIds);
 
+  /**
+   * Sends a request to modify the acknowledge deadline of the given messages. {@code deadline}
+   * must be >= 0 and is the new deadline with respect to the time the modify request was received
+   * by the Pub/Sub service. For example, if {@code deadline} is 10 and {@code unit} is
+   * {@link TimeUnit#SECONDS}, the new ack deadline will expire 10 seconds after the modify request
+   * was received by the service. Specifying 0 may be used to make the message available for another
+   * pull request (corresponds to calling {@link #nackAsync(String, Iterable)}). The method returns
+   * a {@code Future} object that can be used to wait for the modify operation to be completed.
+   *
+   * @param subscription the subscription whose messages need to update their acknowledge deadline
+   * @param deadline the new deadline, relative to the time the modify request is received by the
+   *     Pub/Sub service
+   * @param unit time unit for the {@code deadline} parameter
+   * @param ackId the ack id of the first message for which the acknowledge deadline must be
+   *     modified
+   * @param ackIds other ack ids of messages for which the acknowledge deadline must be modified
+   */
   Future<Void> modifyAckDeadlineAsync(String subscription, int deadline, TimeUnit unit,
       String ackId, String... ackIds);
 
+  /**
+   * Modifies the acknowledge deadline of the given messages. {@code deadline} must be >= 0 and is
+   * the new deadline with respect to the time the modify request was received by the Pub/Sub
+   * service. For example, if {@code deadline} is 10 and {@code unit} is {@link TimeUnit#SECONDS},
+   * the new ack deadline will expire 10 seconds after the modify request was received by the
+   * service. Specifying 0 may be used to make the message available for another pull request
+   * (corresponds to calling {@link #nack(String, Iterable)}).
+   *
+   * @param subscription the subscription whose messages need to update their acknowledge deadline
+   * @param deadline the new deadline, relative to the time the modify request is received by the
+   *     Pub/Sub service
+   * @param unit time unit for the {@code deadline} parameter
+   * @param ackIds the ack ids of messages for which the acknowledge deadline must be modified
+   * @throws PubSubException upon failure, or if the subscription was not found
+   */
   void modifyAckDeadline(String subscription, int deadline, TimeUnit unit, Iterable<String> ackIds);
 
+  /**
+   * Sends a request to modify the acknowledge deadline of the given messages. {@code deadline}
+   * must be >= 0 and is the new deadline with respect to the time the modify request was received
+   * by the Pub/Sub service. For example, if {@code deadline} is 10 and {@code unit} is
+   * {@link TimeUnit#SECONDS}, the new ack deadline will expire 10 seconds after the modify request
+   * was received by the service. Specifying 0 may be used to make the message available for another
+   * pull request (corresponds to calling {@link #nackAsync(String, Iterable)}). The method returns
+   * a {@code Future} object that can be used to wait for the modify operation to be completed.
+   *
+   * @param subscription the subscription whose messages need to update their acknowledge deadline
+   * @param deadline the new deadline, relative to the time the modify request is received by the
+   *     Pub/Sub service
+   * @param unit time unit for the {@code deadline} parameter
+   * @param ackIds the ack ids of messages for which the acknowledge deadline must be modified
+   */
   Future<Void> modifyAckDeadlineAsync(String subscription, int deadline, TimeUnit unit,
       Iterable<String> ackIds);
 

gcloud-java-pubsub/src/main/java/com/google/cloud/pubsub/PubSubImpl.java

@@ -16,9 +16,9 @@
 
 package com.google.cloud.pubsub;
 
-import static com.google.api.client.util.Preconditions.checkArgument;
 import static com.google.cloud.pubsub.PubSub.ListOption.OptionType.PAGE_SIZE;
 import static com.google.cloud.pubsub.PubSub.ListOption.OptionType.PAGE_TOKEN;
+import static com.google.common.base.Preconditions.checkArgument;
 import static com.google.common.util.concurrent.Futures.lazyTransform;
 
 import com.google.cloud.AsyncPage;
@@ -47,6 +47,7 @@
 import com.google.pubsub.v1.ListTopicSubscriptionsResponse;
 import com.google.pubsub.v1.ListTopicsRequest;
 import com.google.pubsub.v1.ListTopicsResponse;
+import com.google.pubsub.v1.ModifyAckDeadlineRequest;
 import com.google.pubsub.v1.ModifyPushConfigRequest;
 import com.google.pubsub.v1.PublishRequest;
 import com.google.pubsub.v1.PublishResponse;
@@ -504,25 +505,30 @@ public Future<Void> nackAsync(String subscription, Iterable<String> ackIds) {
   @Override
   public void modifyAckDeadline(String subscription, int deadline, TimeUnit unit, String ackId,
       String... ackIds) {
-
+    get(modifyAckDeadlineAsync(subscription, deadline, unit, Lists.asList(ackId, ackIds)));
   }
 
   @Override
   public Future<Void> modifyAckDeadlineAsync(String subscription, int deadline, TimeUnit unit,
       String ackId, String... ackIds) {
-    return null;
+    return modifyAckDeadlineAsync(subscription, deadline, unit, Lists.asList(ackId, ackIds));
   }
 
   @Override
   public void modifyAckDeadline(String subscription, int deadline, TimeUnit unit,
       Iterable<String> ackIds) {
-
+    get(modifyAckDeadlineAsync(subscription, deadline, unit, ackIds));
   }
 
   @Override
   public Future<Void> modifyAckDeadlineAsync(String subscription, int deadline, TimeUnit unit,
       Iterable<String> ackIds) {
-    return null;
+    ModifyAckDeadlineRequest request = ModifyAckDeadlineRequest.newBuilder()
+        .setSubscription(SubscriberApi.formatSubscriptionName(options().projectId(), subscription))
+        .setAckDeadlineSeconds((int) TimeUnit.SECONDS.convert(deadline, unit))
+        .addAllAckIds(ackIds)
+        .build();
+    return lazyTransform(rpc.modify(request), EMPTY_TO_VOID_FUNCTION);
   }
 
   static <T extends Option.OptionType> Map<Option.OptionType, ?> optionMap(Option... options) {

gcloud-java-pubsub/src/main/java/com/google/cloud/pubsub/spi/DefaultPubSubRpc.java

@@ -54,13 +54,13 @@
 import com.google.pubsub.v1.Subscription;
 import com.google.pubsub.v1.Topic;
 
-import org.joda.time.Duration;
-
 import io.grpc.ManagedChannel;
 import io.grpc.Status.Code;
 import io.grpc.netty.NegotiationType;
 import io.grpc.netty.NettyChannelBuilder;
 
+import org.joda.time.Duration;
+
 import java.io.IOException;
 import java.util.Set;
 import java.util.concurrent.Future;

gcloud-java-pubsub/src/main/java/com/google/cloud/pubsub/testing/LocalPubsubHelper.java

@@ -23,6 +23,10 @@
 import com.google.cloud.RetryParams;
 import com.google.cloud.pubsub.PubSubOptions;
 
+import io.grpc.ManagedChannel;
+import io.grpc.netty.NegotiationType;
+import io.grpc.netty.NettyChannelBuilder;
+
 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
@@ -31,10 +35,6 @@
 import java.util.List;
 import java.util.UUID;
 
-import io.grpc.ManagedChannel;
-import io.grpc.netty.NegotiationType;
-import io.grpc.netty.NettyChannelBuilder;
-
 /**
  * A class that runs a Pubsub emulator instance for use in tests.
  */

gcloud-java-pubsub/src/test/java/com/google/cloud/pubsub/LocalSystemTest.java

@@ -47,7 +47,7 @@ public static void startServer() throws IOException, InterruptedException {
 
   @AfterClass
   public static void stopServer() throws Exception {
-    pubsub.options().rpc().close();
+    pubsub.close();
     pubsubHelper.reset();
     pubsubHelper.stop();
   }

gcloud-java-pubsub/src/test/java/com/google/cloud/pubsub/PubSubImplTest.java

@@ -47,6 +47,7 @@
 import com.google.pubsub.v1.ListTopicSubscriptionsResponse;
 import com.google.pubsub.v1.ListTopicsRequest;
 import com.google.pubsub.v1.ListTopicsResponse;
+import com.google.pubsub.v1.ModifyAckDeadlineRequest;
 import com.google.pubsub.v1.ModifyPushConfigRequest;
 import com.google.pubsub.v1.PublishRequest;
 import com.google.pubsub.v1.PublishResponse;
@@ -61,6 +62,7 @@
 import java.util.List;
 import java.util.concurrent.ExecutionException;
 import java.util.concurrent.Future;
+import java.util.concurrent.TimeUnit;
 
 public class PubSubImplTest {
 
@@ -1187,6 +1189,100 @@ public void testListTopicSubscriptionsAsyncWithOptions()
         Iterables.toArray(page.values(), SubscriptionId.class));
   }
 
+  @Test
+  public void testModifyAckDeadlineOneMessage() {
+    pubsub = options.service();
+    ModifyAckDeadlineRequest request = ModifyAckDeadlineRequest.newBuilder()
+        .setAckDeadlineSeconds(10)
+        .setSubscription(SUBSCRIPTION_NAME_PB)
+        .addAckIds("ackId")
+        .build();
+    Future<Empty> response = Futures.immediateFuture(Empty.getDefaultInstance());
+    EasyMock.expect(pubsubRpcMock.modify(request)).andReturn(response);
+    EasyMock.replay(pubsubRpcMock);
+    pubsub.modifyAckDeadline(SUBSCRIPTION, 10, TimeUnit.SECONDS, "ackId");
+  }
+
+  @Test
+  public void testModifyAckDeadlineOneMessageAsync()
+      throws ExecutionException, InterruptedException {
+    pubsub = options.service();
+    ModifyAckDeadlineRequest request = ModifyAckDeadlineRequest.newBuilder()
+        .setAckDeadlineSeconds(10)
+        .setSubscription(SUBSCRIPTION_NAME_PB)
+        .addAckIds("ackId")
+        .build();
+    Future<Empty> response = Futures.immediateFuture(Empty.getDefaultInstance());
+    EasyMock.expect(pubsubRpcMock.modify(request)).andReturn(response);
+    EasyMock.replay(pubsubRpcMock);
+    Future<Void> future =
+        pubsub.modifyAckDeadlineAsync(SUBSCRIPTION, 10, TimeUnit.SECONDS, "ackId");
+    assertNull(future.get());
+  }
+
+  @Test
+  public void testModifyAckDeadlineMoreMessages() {
+    pubsub = options.service();
+    ModifyAckDeadlineRequest request = ModifyAckDeadlineRequest.newBuilder()
+        .setAckDeadlineSeconds(10)
+        .setSubscription(SUBSCRIPTION_NAME_PB)
+        .addAllAckIds(ImmutableList.of("ackId1", "ackId2"))
+        .build();
+    Future<Empty> response = Futures.immediateFuture(Empty.getDefaultInstance());
+    EasyMock.expect(pubsubRpcMock.modify(request)).andReturn(response);
+    EasyMock.replay(pubsubRpcMock);
+    pubsub.modifyAckDeadline(SUBSCRIPTION, 10, TimeUnit.SECONDS, "ackId1", "ackId2");
+  }
+
+  @Test
+  public void testModifyAckDeadlineMoreMessagesAsync()
+      throws ExecutionException, InterruptedException {
+    pubsub = options.service();
+    ModifyAckDeadlineRequest request = ModifyAckDeadlineRequest.newBuilder()
+        .setAckDeadlineSeconds(10)
+        .setSubscription(SUBSCRIPTION_NAME_PB)
+        .addAllAckIds(ImmutableList.of("ackId1", "ackId2"))
+        .build();
+    Future<Empty> response = Futures.immediateFuture(Empty.getDefaultInstance());
+    EasyMock.expect(pubsubRpcMock.modify(request)).andReturn(response);
+    EasyMock.replay(pubsubRpcMock);
+    Future<Void> future =
+        pubsub.modifyAckDeadlineAsync(SUBSCRIPTION, 10, TimeUnit.SECONDS, "ackId1", "ackId2");
+    assertNull(future.get());
+  }
+
+  @Test
+  public void testModifyAckDeadlineMessageList() {
+    pubsub = options.service();
+    List<String> ackIds = ImmutableList.of("ackId1", "ackId2");
+    ModifyAckDeadlineRequest request = ModifyAckDeadlineRequest.newBuilder()
+        .setAckDeadlineSeconds(10)
+        .setSubscription(SUBSCRIPTION_NAME_PB)
+        .addAllAckIds(ackIds)
+        .build();
+    Future<Empty> response = Futures.immediateFuture(Empty.getDefaultInstance());
+    EasyMock.expect(pubsubRpcMock.modify(request)).andReturn(response);
+    EasyMock.replay(pubsubRpcMock);
+    pubsub.modifyAckDeadline(SUBSCRIPTION, 10, TimeUnit.SECONDS, ackIds);
+  }
+
+  @Test
+  public void testModifyAckDeadlineMessageListAsync()
+      throws ExecutionException, InterruptedException {
+    pubsub = options.service();
+    List<String> ackIds = ImmutableList.of("ackId1", "ackId2");
+    ModifyAckDeadlineRequest request = ModifyAckDeadlineRequest.newBuilder()
+        .setAckDeadlineSeconds(10)
+        .setSubscription(SUBSCRIPTION_NAME_PB)
+        .addAllAckIds(ackIds)
+        .build();
+    Future<Empty> response = Futures.immediateFuture(Empty.getDefaultInstance());
+    EasyMock.expect(pubsubRpcMock.modify(request)).andReturn(response);
+    EasyMock.replay(pubsubRpcMock);
+    Future<Void> future = pubsub.modifyAckDeadlineAsync(SUBSCRIPTION, 10, TimeUnit.SECONDS, ackIds);
+    assertNull(future.get());
+  }
+
   @Test
   public void testClose() throws Exception {
     pubsub = options.service();