/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.hadoop.chukwa.util;
import java.util.Random;
import org.apache.hadoop.chukwa.ChunkImpl;
import org.apache.hadoop.chukwa.datacollection.*;
import org.apache.hadoop.chukwa.datacollection.agent.AdaptorManager;
import org.apache.hadoop.chukwa.datacollection.adaptor.*;
public class MaxRateSender extends Thread implements Adaptor {
public static final int BUFFER_SIZE = 60 * 1024;
public static final String ADAPTOR_NAME = "MaxRateSender";
private volatile boolean stopping = false;
private long offset;
private String type;
ChunkReceiver dest;
private String adaptorID;
public String getCurrentStatus() {
return type;
}
public void start(String adaptorID, String type, long offset,
ChunkReceiver dest, AdaptorManager c) throws AdaptorException {
this.setName("MaxRateSender adaptor");
this.adaptorID = adaptorID;
this.offset = offset;
this.type = type;
this.dest = dest;
super.start(); // this is a Thread.start
}
@Override
public String parseArgs(String s) {
return s;
}
public void run() {
Random r = new Random();
try {
while (!stopping) {
byte[] data = new byte[BUFFER_SIZE];
r.nextBytes(data);
offset += data.length;
ChunkImpl evt = new ChunkImpl(type, "random data source", offset, data,
this);
dest.add(evt);
}
} catch (InterruptedException ie) {
}
}
public String toString() {
return ADAPTOR_NAME;
}
public long shutdown() throws AdaptorException {
return shutdown(AdaptorShutdownPolicy.GRACEFULLY);
}
public void hardStop() throws AdaptorException {
shutdown(AdaptorShutdownPolicy.HARD_STOP);
}
@Override
public long shutdown(AdaptorShutdownPolicy shutdownPolicy) {
switch(shutdownPolicy) {
case HARD_STOP :
case GRACEFULLY :
case WAIT_TILL_FINISHED :
stopping = true;
break;
}
return offset;
}
@Override
public String getType() {
return type;
}
}