public CanalController(){
this(System.getProperties());
}
public CanalController(final Properties properties){
managerClients = new MapMaker().makeComputingMap(new Function<String, CanalConfigClient>() {
public CanalConfigClient apply(String managerAddress) {
return getManagerClient(managerAddress);
}
});
// 初始化全局参数设置
globalInstanceConfig = initGlobalConfig(properties);
instanceConfigs = new MapMaker().makeMap();
// 初始化instance config
initInstanceConfig(properties);
// 准备canal server
cid = Long.valueOf(getProperty(properties, CanalConstants.CANAL_ID));
ip = getProperty(properties, CanalConstants.CANAL_IP);
if (StringUtils.isEmpty(ip)) {
ip = AddressUtils.getHostIp();
}
port = Integer.valueOf(getProperty(properties, CanalConstants.CANAL_PORT));
final String zkServers = getProperty(properties, CanalConstants.CANAL_ZKSERVERS);
if (StringUtils.isNotEmpty(zkServers)) {
zkclientx = ZkClientx.getZkClient(zkServers);
// 初始化系统目录
zkclientx.createPersistent(ZookeeperPathUtils.DESTINATION_ROOT_NODE, true);
zkclientx.createPersistent(ZookeeperPathUtils.CANAL_CLUSTER_ROOT_NODE, true);
}
boolean stopInstanceAsPossible = BooleanUtils.toBoolean(getProperty(properties,
CanalConstants.CANAL_STOPINSTANCEASPOSSIBLE));
final ServerRunningData serverData = new ServerRunningData(cid, ip + ":" + port);
ServerRunningMonitors.setServerData(serverData);
ServerRunningMonitors.setRunningMonitors(new MapMaker().makeComputingMap(new Function<String, ServerRunningMonitor>() {
public ServerRunningMonitor apply(final String destination) {
ServerRunningMonitor runningMonitor = new ServerRunningMonitor(serverData);
runningMonitor.setDestination(destination);
runningMonitor.setListener(new ServerRunningListener() {
public void processActiveEnter() {
try {
MDC.put(CanalConstants.MDC_DESTINATION, String.valueOf(destination));
embededCanalServer.start(destination);
} finally {
MDC.remove(CanalConstants.MDC_DESTINATION);
}
}
public void processActiveExit() {
try {
MDC.put(CanalConstants.MDC_DESTINATION, String.valueOf(destination));
embededCanalServer.stop(destination);
} finally {
MDC.remove(CanalConstants.MDC_DESTINATION);
}
}
public void processStart() {
try {
if (zkclientx != null) {
final String path = ZookeeperPathUtils.getDestinationClusterNode(destination, ip + ":"
+ port);
initCid(path);
zkclientx.subscribeStateChanges(new IZkStateListener() {
public void handleStateChanged(KeeperState state) throws Exception {
}
public void handleNewSession() throws Exception {
initCid(path);
}
});
}
} finally {
MDC.remove(CanalConstants.MDC_DESTINATION);
}
}
public void processStop() {
try {
MDC.put(CanalConstants.MDC_DESTINATION, String.valueOf(destination));
if (zkclientx != null) {
final String path = ZookeeperPathUtils.getDestinationClusterNode(destination, ip + ":"
+ port);
releaseCid(path);
}
} finally {
MDC.remove(CanalConstants.MDC_DESTINATION);
}
}
});
if (zkclientx != null) {
runningMonitor.setZkClient(zkclientx);
}
return runningMonitor;
}
}));
embededCanalServer = new CanalServerWithEmbeded();
embededCanalServer.setCanalInstanceGenerator(instanceGenerator);// 设置自定义的instanceGenerator
canalServer = new CanalServerWithNetty(embededCanalServer);
canalServer.setIp(ip);
canalServer.setPort(port);
canalServer.setStopInstanceAsPossible(stopInstanceAsPossible);
// 初始化monitor机制
autoScan = BooleanUtils.toBoolean(getProperty(properties, CanalConstants.CANAL_AUTO_SCAN));
if (autoScan) {
defaultAction = new InstanceAction() {
public void start(String destination) {
InstanceConfig config = instanceConfigs.get(destination);
if (config == null) {
config = new InstanceConfig(globalInstanceConfig);
instanceConfigs.put(destination, config);
}
if (!config.getLazy() && !embededCanalServer.isStart(destination)) {
// HA机制启动
ServerRunningMonitor runningMonitor = ServerRunningMonitors.getRunningMonitor(destination);
if (!runningMonitor.isStart()) {
runningMonitor.start();
}
}
}
public void stop(String destination) {
// 此处的stop，代表强制退出，非HA机制，所以需要退出HA的monitor和配置信息
InstanceConfig config = instanceConfigs.remove(destination);
if (config != null) {
embededCanalServer.stop(destination);
ServerRunningMonitor runningMonitor = ServerRunningMonitors.getRunningMonitor(destination);
if (runningMonitor.isStart()) {
runningMonitor.stop();
}
}
}
public void reload(String destination) {
// 目前任何配置变化，直接重启，简单处理
stop(destination);
start(destination);
}
};
instanceConfigMonitors = new MapMaker().makeComputingMap(new Function<InstanceMode, InstanceConfigMonitor>() {
public InstanceConfigMonitor apply(InstanceMode mode) {
int scanInterval = Integer.valueOf(getProperty(properties, CanalConstants.CANAL_AUTO_SCAN_INTERVAL));
if (mode.isSpring()) {