Java Code Examples for io.grpc.stub.ClientCalls#blockingServerStreamingCall()

The following examples show how to use io.grpc.stub.ClientCalls#blockingServerStreamingCall() . You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source File: ConsensusClient.java    From hedera-sdk-java with Apache License 2.0 6 votes vote down vote up 
/**
 * Get a blocking iterator which returns messages for the given topic with consensus timestamps
 * between two {@link Instant}s.
 *
 * @param topicId
 * @param startTime the lower bound for timestamps (inclusive), may be in the past or future.
 * @param endTime the upper bound for timestamps (exclusive), may also be in the past or future.
 * @return
 */
public Iterator<ConsensusMessage> getMessages(ConsensusTopicId topicId, Instant startTime, Instant endTime) {
    final ConsensusTopicQuery topicQuery = ConsensusTopicQuery.newBuilder()
        .setTopicID(topicId.toProto())
        .setConsensusStartTime(TimestampHelper.timestampFrom(startTime))
        .setConsensusEndTime(TimestampHelper.timestampFrom(endTime))
        .build();

    final Iterator<ConsensusTopicResponse> iter = ClientCalls.blockingServerStreamingCall(
        channel,
        ConsensusServiceGrpc.getSubscribeTopicMethod(),
        CallOptions.DEFAULT,
        topicQuery);

    return Iterators.transform(iter, message -> new ConsensusMessage(topicId, Objects.requireNonNull(message)));
}
Example 2
Source File: ConsensusClient.java    From hedera-sdk-java with Apache License 2.0 5 votes vote down vote up 
/**
 * Get a blocking iterator which returns messages for the given topic with consensus timestamps
 * starting now and continuing until the given {@link Instant}.
 *
 * @param topicId
 * @param endTime the upper bound for timestamps (exclusive), may be in the past or future.
 * @return
 */
public Iterator<ConsensusMessage> getMessagesUntil(ConsensusTopicId topicId, Instant endTime) {
    final ConsensusTopicQuery topicQuery = ConsensusTopicQuery.newBuilder()
        .setTopicID(topicId.toProto())
        .setConsensusEndTime(TimestampHelper.timestampFrom(endTime))
        .build();

    final Iterator<ConsensusTopicResponse> iter = ClientCalls.blockingServerStreamingCall(
        channel,
        ConsensusServiceGrpc.getSubscribeTopicMethod(),
        CallOptions.DEFAULT,
        topicQuery);

    return Iterators.transform(iter, message -> new ConsensusMessage(topicId, Objects.requireNonNull(message)));
}
Example 3
Source File: ManageChannelProxy.java    From faster-framework-project with Apache License 2.0 5 votes vote down vote up 
@SuppressWarnings("unchecked")
@Override
public Object invoke(Object proxy, Method method, Object[] args) {
    String methodName = method.getName();
    String className = method.getDeclaringClass().getName();
    if ("toString".equals(methodName) && args.length == 0) {
        return className + "@" + invoker.hashCode();
    } else if ("hashCode".equals(methodName) && args.length == 0) {
        return invoker.hashCode();
    } else if ("equals".equals(methodName) && args.length == 1) {
        Object another = Utils.safeElement(args, 0);
        return proxy == another;
    }
    String annotationMethodName = method.getAnnotation(GRpcMethod.class).value();
    MethodCallProperty methodCallProperty = callDefinitions.get(StringUtils.isEmpty(annotationMethodName) ? methodName : annotationMethodName);
    ClientCall<Object, Object> clientCall = buildCall(methodCallProperty);
    switch (methodCallProperty.getMethodType()) {
        case UNARY:
            if (method.getReturnType() == ListenableFuture.class) { //等于ClientCalls.futureUnaryCall()
                return ClientCalls.futureUnaryCall(clientCall, Utils.safeElement(args, 0));
            } else if (method.getReturnType().getName().equals("void")) { //等于ClientCalls.asyncUnaryCall();
                if (Utils.checkMethodHasParamClass(method, StreamObserver.class)) {
                    ClientCalls.asyncUnaryCall(clientCall, Utils.safeElement(args, 0), (StreamObserver<Object>) Utils.safeElement(args, 1));
                    return null;
                } else {
                    ClientCalls.blockingUnaryCall(clientCall, Utils.safeElement(args, 0));
                    return null;
                }
            }
            return ClientCalls.blockingUnaryCall(clientCall, Utils.safeElement(args, 0));
        case BIDI_STREAMING://双向流，相当于asyncBidiStreamingCall
            //获取返回类型的泛型
            return ClientCalls.asyncBidiStreamingCall(clientCall, (StreamObserver<Object>) Utils.safeElement(args, 0));
        case CLIENT_STREAMING: //客户端流。等于ClientCalls.asyncClientStreamingCall()
            return ClientCalls.asyncClientStreamingCall(clientCall, (StreamObserver<Object>) Utils.safeElement(args, 0));
        case SERVER_STREAMING://等于ClientCalls.blockingServerStreamingCall
            return ClientCalls.blockingServerStreamingCall(clientCall, Utils.safeElement(args, 0));
    }
    return null;
}