public synchronized boolean waitForConnection(long timeout, TimeUnit units)
throws InterruptedException {
long left = timeout > 0 ? units.toMillis(timeout) : Long.MAX_VALUE;
while (!connectionMade.isSet() && left > 0) {
long start = System.currentTimeMillis();
this.wait(units.toMillis(timeout));
left -= (System.currentTimeMillis() - start);
}
return connectionMade.isSet();
}
public void jmxIsReady() {
synchronized (jmxReadyLock) {
localJmxServerReady.set();
}
sendJmxReadyMessageIfNecessary();
}
private void shutdown(boolean fromShutdownHook, boolean forceImmediate) {
if (clientStopped.attemptSet()) {
DSO_LOGGER.info(
"shuting down Terracotta Client hook=" + fromShutdownHook + " force=" + forceImmediate);
shutdownClient(fromShutdownHook, forceImmediate);
} else {
DSO_LOGGER.info("Client already shutdown.");
}
synchronized (this) {
// notify in case the connection establisher is waiting for something
notifyAll();
}
}
private synchronized void openChannel(String serverHost, int serverPort)
throws InterruptedException {
while (!clientStopped.isSet()) {
try {
DSO_LOGGER.debug("Trying to open channel....");
final char[] pw;
if (config.getSecurityInfo().hasCredentials()) {
Assert.assertNotNull(securityManager);
pw =
securityManager.getPasswordForTC(
config.getSecurityInfo().getUsername(), serverHost, serverPort);
} else {
pw = null;
}
this.channel.open(pw);
DSO_LOGGER.debug("Channel open");
break;
} catch (final TCTimeoutException tcte) {
CONSOLE_LOGGER.warn("Timeout connecting to server: " + tcte.getMessage());
this.wait(5000);
} catch (final ConnectException e) {
CONSOLE_LOGGER.warn("Connection refused from server: " + e);
this.wait(5000);
} catch (final MaxConnectionsExceededException e) {
DSO_LOGGER.fatal(e.getMessage());
CONSOLE_LOGGER.fatal(e.getMessage());
throw new IllegalStateException(e.getMessage(), e);
} catch (final CommStackMismatchException e) {
DSO_LOGGER.fatal(e.getMessage());
CONSOLE_LOGGER.fatal(e.getMessage());
throw new IllegalStateException(e.getMessage(), e);
} catch (final IOException ioe) {
CONSOLE_LOGGER.warn(
"IOException connecting to server: "
+ serverHost
+ ":"
+ serverPort
+ ". "
+ ioe.getMessage());
this.wait(5000);
}
}
}
public void requestStop() {
if (stopRequested.attemptSet()) {
readerComm.requestStop();
writerComm.requestStop();
}
}
public synchronized void start(final boolean createDedicatedMBeanServer) {
started.set();
Thread registrationThread =
new Thread(
new Runnable() {
private static final int MAX_ATTEMPTS = 60 * 5;
@Override
public void run() {
try {
boolean registered = false;
int attemptCounter = 0;
while (!registered && attemptCounter++ < MAX_ATTEMPTS) {
try {
if (logger.isDebugEnabled()) {
logger.debug(
"Attempt #"
+ (attemptCounter + 1)
+ " to find the MBeanServer and register the L1 MBeans");
}
attemptToRegister(createDedicatedMBeanServer);
registered = true;
if (logger.isDebugEnabled()) {
logger.debug(
"L1 MBeans registered with the MBeanServer successfully after "
+ (attemptCounter + 1)
+ " attempts");
}
} catch (InstanceAlreadyExistsException e) {
logger.error(
"Exception while registering the L1 MBeans, they already seem to exist in the MBeanServer.",
e);
return;
} catch (Exception e) {
// Ignore and try again after 1 second, give the VM a chance to get started
if (logger.isDebugEnabled()) {
logger.debug("Caught exception while trying to register L1 MBeans", e);
}
try {
Thread.sleep(1000);
} catch (InterruptedException ie) {
new Exception(
"JMX registration thread interrupted, management beans will not be available",
ie)
.printStackTrace();
}
}
}
if (registered) {
tunnelingHandler.jmxIsReady();
} else {
logger.error(
"Aborted attempts to register management"
+ " beans after "
+ (MAX_ATTEMPTS / 60)
+ " min of trying.");
}
} finally {
if (stopped) {
try {
L1Management.this.stop();
} catch (IOException e) {
logger.error("Error stopping L1 management from registration thread");
}
}
}
}
},
"L1Management JMX registration");
registrationThread.setDaemon(true);
registrationThread.start();
}
private synchronized void connectionMade() {
connectionMade.attemptSet();
notifyAll();
}
public boolean isTunnelingReady() {
synchronized (jmxReadyLock) {
return localJmxServerReady.isSet() && transportConnected;
}
}
