com.hazelcast.console.Echo Maven / Gradle / Ivy
/*
* Copyright (c) 2008-2018, Hazelcast, Inc. All Rights Reserved.
*
* 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.hazelcast.console;
import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.core.HazelcastInstanceAware;
import com.hazelcast.nio.ObjectDataInput;
import com.hazelcast.nio.ObjectDataOutput;
import com.hazelcast.nio.serialization.DataSerializable;
import com.hazelcast.nio.serialization.BinaryInterface;
import java.io.IOException;
import java.util.concurrent.Callable;
/**
* Echoes to screen.
*/
@BinaryInterface
public class Echo implements Callable, DataSerializable, HazelcastInstanceAware {
String input;
private transient HazelcastInstance hz;
public Echo() {
// no-arg constructor needed for DataSerializable classes
}
public Echo(String input) {
this.input = input;
}
@Override
public String call() {
hz.getCountDownLatch("latch").countDown();
return hz.getCluster().getLocalMember().toString() + ":" + input;
}
@Override
public void writeData(ObjectDataOutput out) throws IOException {
out.writeUTF(input);
}
@Override
public void readData(ObjectDataInput in) throws IOException {
input = in.readUTF();
}
@Override
public void setHazelcastInstance(HazelcastInstance hazelcastInstance) {
this.hz = hazelcastInstance;
}
}