/*
* Copyright 2014 NAVER Corp.
*
* 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.navercorp.pinpoint.web.cluster;
import com.navercorp.pinpoint.common.util.NetUtils;
import com.navercorp.pinpoint.rpc.PinpointSocket;
import com.navercorp.pinpoint.web.cluster.connection.ClusterAcceptor;
import com.navercorp.pinpoint.web.cluster.connection.ClusterConnectionManager;
import com.navercorp.pinpoint.web.config.WebConfig;
import com.navercorp.pinpoint.web.vo.AgentInfo;
import org.apache.zookeeper.KeeperException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import java.io.IOException;
import java.nio.charset.Charset;
import java.nio.charset.StandardCharsets;
import java.util.Iterator;
import java.util.List;
/**
* @Author Taejin Koo
*/
public class ClusterManager {
private final Logger logger = LoggerFactory.getLogger(this.getClass());
private final Charset charset = StandardCharsets.UTF_8;
private final WebConfig config;
@Autowired
ClusterConnectionManager clusterConnectionManager;
@Autowired
ClusterDataManager clusterDataManager;
public ClusterManager(WebConfig config) {
this.config = config;
}
@PostConstruct
public void start() throws InterruptedException, IOException, KeeperException {
logger.info("start() started.");
if (!config.isClusterEnable()) {
logger.info("start() skipped. caused:cluster option disabled.");
return;
}
try {
clusterConnectionManager.start();
clusterDataManager.start();
ClusterAcceptor clusterAcceptor = clusterConnectionManager.getClusterAcceptor();
if (clusterAcceptor != null) {
String nodeName = clusterAcceptor.getBindHost() + ":" + clusterAcceptor.getBindPort();
List<String> localIpList = NetUtils.getLocalV4IpList();
clusterDataManager.registerWebCluster(nodeName, convertIpListToBytes(localIpList, "\r\n"));
}
} catch (Exception e) {
logger.warn("start() failed. caused:{}.", e.getMessage(), e);
clearResource();
}
logger.info("start() completed.");
}
@PreDestroy
public void stop() {
logger.info("stop() started.");
if (!config.isClusterEnable()) {
logger.info("stop() skipped. caused:cluster option disabled.");
return;
}
clearResource();
logger.info("stop() completed.");
}
private void clearResource() {
if (clusterDataManager != null) {
clusterDataManager.stop();
}
if (clusterConnectionManager != null) {
clusterConnectionManager.stop();
}
}
private String getRepresentationLocalV4Ip() {
String ip = NetUtils.getLocalV4Ip();
if (!ip.equals(NetUtils.LOOPBACK_ADDRESS_V4)) {
return ip;
}
// local ip addresses with all LOOPBACK addresses removed
List<String> ipList = NetUtils.getLocalV4IpList();
if (!ipList.isEmpty()) {
return ipList.get(0);
}
return NetUtils.LOOPBACK_ADDRESS_V4;
}
private byte[] convertIpListToBytes(List<String> ipList, String delimiter) {
StringBuilder stringBuilder = new StringBuilder();
Iterator<String> ipIterator = ipList.iterator();
while (ipIterator.hasNext()) {
String eachIp = ipIterator.next();
stringBuilder.append(eachIp);
if (ipIterator.hasNext()) {
stringBuilder.append(delimiter);
}
}
return stringBuilder.toString().getBytes(charset);
}
public boolean isConnected(AgentInfo agentInfo) {
if (!config.isClusterEnable()) {
return false;
}
List<String> clusterIdList = clusterDataManager.getRegisteredAgentList(agentInfo);
return clusterIdList.size() == 1;
}
public PinpointSocket getSocket(AgentInfo agentInfo) {
return getSocket(agentInfo.getApplicationName(), agentInfo.getAgentId(), agentInfo.getStartTimestamp());
}
public PinpointSocket getSocket(String applicationName, String agentId, long startTimeStamp) {
if (!config.isClusterEnable()) {
return null;
}
List<String> clusterIdList = clusterDataManager.getRegisteredAgentList(applicationName, agentId, startTimeStamp);
// having duplicate AgentName registered is an exceptional case
if (clusterIdList.isEmpty()) {
logger.warn("{}/{}/{} couldn't find agent.", applicationName, agentId, startTimeStamp);
return null;
} else if (clusterIdList.size() > 1) {
logger.warn("{}/{}/{} found duplicate agent {}.", applicationName, agentId, startTimeStamp, clusterIdList);
return null;
}
String clusterId = clusterIdList.get(0);
return clusterConnectionManager.getSocket(clusterId);
}
}