scouter.agent.netio.data.UDPDataSendThread Maven / Gradle / Ivy
/*
* Copyright 2015 the original author or authors.
* @https://github.com/scouter-project/scouter
*
* 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 scouter.agent.netio.data;
import java.util.ArrayList;
import java.util.List;
import scouter.agent.Configure;
import scouter.agent.netio.data.net.DataUdpAgent;
import scouter.io.DataOutputX;
import scouter.lang.pack.Pack;
import scouter.util.Queue;
import scouter.util.ThreadUtil;
public class UDPDataSendThread extends Thread {
private static UDPDataSendThread instance = null;
public final static synchronized UDPDataSendThread getInstance() {
if (instance == null) {
instance = new UDPDataSendThread();
instance.setDaemon(true);
instance.setName(ThreadUtil.getName(instance));
instance.start();
}
return instance;
}
protected UDPDataSendThread() {
}
private Queue queue = new Queue(1024);
public int getQueueSize() {
return queue.size();
}
public boolean add(Pack p) {
try {
byte[] b = new DataOutputX().writePack(p).toByteArray();
Object ok = queue.push(b);
return ok != null;
} catch (Exception e) {
}
return false;
}
public boolean isQueueOk() {
return queue.size() < 1000;
}
public void shutdown() {
running = false;
}
private boolean running = true;
public void run() {
DataUdpAgent udp = DataUdpAgent.getInstance();
while (running) {
int size = queue.size();
switch (size) {
case 0:
ThreadUtil.sleep(conf.net_udp_collection_interval_ms);
break;
case 1:
udp.write(queue.pop());
break;
default:
send(udp, size);
break;
}
}
}
private Configure conf = Configure.getInstance();
private void send(DataUdpAgent udp, int size) {
List buff = new ArrayList();
int bytes = 0;
for (int k = 0; k < size; k++) {
byte[] b = queue.pop();
if (bytes + b.length >= conf.net_udp_packet_max_bytes) {
send(udp, buff); //buff.size가 0일수도 있다.
bytes = 0;// bytes 값 초기화..
buff.clear();
}
bytes += b.length;
buff.add(b);
}
send(udp, buff);
}
public void send(DataUdpAgent udp, List buff) {
switch (buff.size()) {
case 0:
break;
case 1:
udp.write(buff.get(0));
break;
default:
udp.write(buff);
break;
}
}
}