/** Shutdown heartbeat server and send a kill signal to child processes */
public static synchronized void shutdown() {
if (server != null) {
server.shutdown();
server = null;
}
}
/**
* Creates a server thread in the parent process posting a periodic heartbeat.
*
* @return server port - must be passed to {@link startClientWatchdogService()}
*/
public static synchronized int getChildProcessHeartbeatServerPort() {
if (server == null) throw new IllegalStateException("Heartbeat Server has not started!");
return server.getPort();
}
public static synchronized void startHeartBeatServer() {
if (server == null) {
server = new HeartbeatServer();
server.start();
}
}
public static synchronized boolean isServerRunning() {
if (server == null) {
return false;
}
return server.isRunning();
}
public static synchronized boolean isAnyAppServerAlive() {
if (server == null) return false;
return server.isAnyAppServerAlive();
}