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MetricsClient.java
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MetricsClient.java
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/*
* Copyright 2016 Google, Inc.
*
* 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
*
* http://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.example.grpc.client;
import com.example.server.streaming.MetricsServiceGrpc;
import com.example.server.streaming.StreamingExample;
import io.grpc.ManagedChannel;
import io.grpc.ManagedChannelBuilder;
import io.grpc.stub.StreamObserver;
import java.util.stream.Stream;
/**
* Created by rayt on 5/16/16.
*/
public class MetricsClient {
public static void main(String[] args) throws InterruptedException {
ManagedChannel channel = ManagedChannelBuilder.forAddress("localhost", 8080).usePlaintext(true).build();
MetricsServiceGrpc.MetricsServiceStub stub = MetricsServiceGrpc.newStub(channel);
StreamObserver<StreamingExample.Metric> collect = stub.collect(new StreamObserver<StreamingExample.Average>() {
@Override
public void onNext(StreamingExample.Average value) {
System.out.println("Average: " + value.getVal());
}
@Override
public void onError(Throwable t) {
}
@Override
public void onCompleted() {
}
});
Stream.of(1L, 2L, 3L, 4L).map(l -> StreamingExample.Metric.newBuilder().setMetric(l).build())
.forEach(collect::onNext);
collect.onCompleted();
//channel.shutdown().awaitTermination(5, TimeUnit.SECONDS);
}
}