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/*
* Copyright 2017 BOCO Corporation. CMCC Technologies Co., Ltd
*
* 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 org.onap.vfc.nfvo.emsdriver.collector;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.onap.vfc.nfvo.emsdriver.commons.constant.Constant;
import org.onap.vfc.nfvo.emsdriver.commons.model.CollectMsg;
import org.onap.vfc.nfvo.emsdriver.commons.utils.StringUtil;
import java.util.concurrent.*;
public class TaskThreadService extends Thread {
private final ExecutorService pool;
private static final Log log = LogFactory.getLog(TaskThreadService.class);
private BlockingQueue<CollectMsg> queue = new LinkedBlockingQueue<>();
private boolean startFlag = true;
private long timeStamp = System.currentTimeMillis();
private TaskThreadService(int poolSize) {
pool = Executors.newFixedThreadPool(poolSize);
}
public static TaskThreadService getInstance(int poolSize) {
return new TaskThreadService(poolSize);
}
@Override
public void run() { // run the service
try {
while (startFlag) {
try {
if (System.currentTimeMillis() - timeStamp > Constant.ONEMINUTE) {
timeStamp = System.currentTimeMillis();
log.debug("task queue size " + queue.size());
}
CollectMsg data = receive();
if (data == null) {
continue;
}
pool.execute(new TaskThread(data));
} catch (Exception e) {
log.error("collect task process fail!" + StringUtil.getStackTrace(e));
}
}
} catch (Exception ex) {
log.error("task ThreadService error " + StringUtil.getStackTrace(ex));
pool.shutdown();
}
log.error("Task ThreadService exit");
}
public CollectMsg receive() {
try {
return queue.poll(100, TimeUnit.MILLISECONDS);
} catch (Exception e) {
log.error("queue.poll is error" + StringUtil.getStackTrace(e));
}
return null;
}
public void add(CollectMsg data) {
try {
queue.put(data);
} catch (Exception e) {
log.error("queue.put is error" + StringUtil.getStackTrace(e));
}
}
public int size() {
return queue.size();
}
public void stopTask() {
startFlag = false;
}
}
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