public synchronized void freeze(final CoreRemotingConnection connectionToKeepOpen) {
if (!started) return;
failureCheckAndFlushThread.close(false);
for (Acceptor acceptor : acceptors) {
try {
acceptor.pause();
} catch (Exception e) {
HornetQServerLogger.LOGGER.errorStoppingAcceptor();
}
}
HashMap<Object, ConnectionEntry> connectionEntries =
new HashMap<Object, ConnectionEntry>(connections);
// Now we ensure that no connections will process any more packets after this method is
// complete then send a disconnect packet
for (Entry<Object, ConnectionEntry> entry : connectionEntries.entrySet()) {
RemotingConnection conn = entry.getValue().connection;
if (conn.equals(connectionToKeepOpen)) continue;
if (HornetQServerLogger.LOGGER.isTraceEnabled()) {
HornetQServerLogger.LOGGER.trace("Sending connection.disconnection packet to " + conn);
}
if (!conn.isClient()) {
conn.disconnect(false);
connections.remove(entry.getKey());
}
}
}
public void stop(final boolean criticalError) throws Exception {
if (!started) {
return;
}
failureCheckAndFlushThread.close(criticalError);
// We need to stop them accepting first so no new connections are accepted after we send the
// disconnect message
for (Acceptor acceptor : acceptors) {
if (HornetQServerLogger.LOGGER.isDebugEnabled()) {
HornetQServerLogger.LOGGER.debug("Pausing acceptor " + acceptor);
}
acceptor.pause();
}
if (HornetQServerLogger.LOGGER.isDebugEnabled()) {
HornetQServerLogger.LOGGER.debug("Sending disconnect on live connections");
}
HashSet<ConnectionEntry> connectionEntries = new HashSet<ConnectionEntry>(connections.values());
// Now we ensure that no connections will process any more packets after this method is complete
// then send a disconnect packet
for (ConnectionEntry entry : connectionEntries) {
RemotingConnection conn = entry.connection;
if (HornetQServerLogger.LOGGER.isTraceEnabled()) {
HornetQServerLogger.LOGGER.trace("Sending connection.disconnection packet to " + conn);
}
conn.disconnect(criticalError);
}
for (Acceptor acceptor : acceptors) {
acceptor.stop();
}
acceptors.clear();
connections.clear();
if (managementService != null) {
managementService.unregisterAcceptors();
}
threadPool.shutdown();
if (!criticalError) {
boolean ok = threadPool.awaitTermination(10000, TimeUnit.MILLISECONDS);
if (!ok) {
HornetQServerLogger.LOGGER.timeoutRemotingThreadPool();
}
}
started = false;
}
public synchronized void start() throws Exception {
if (started) {
return;
}
ClassLoader tccl =
AccessController.doPrivileged(
new PrivilegedAction<ClassLoader>() {
public ClassLoader run() {
return Thread.currentThread().getContextClassLoader();
}
});
// The remoting service maintains it's own thread pool for handling remoting traffic
// If OIO each connection will have it's own thread
// If NIO these are capped at nio-remoting-threads which defaults to num cores * 3
// This needs to be a different thread pool to the main thread pool especially for OIO where we
// may need
// to support many hundreds of connections, but the main thread pool must be kept small for
// better performance
ThreadFactory tFactory =
new HornetQThreadFactory(
"HornetQ-remoting-threads-" + server.toString() + "-" + System.identityHashCode(this),
false,
tccl);
threadPool = Executors.newCachedThreadPool(tFactory);
ClassLoader loader = Thread.currentThread().getContextClassLoader();
for (TransportConfiguration info : acceptorsConfig) {
try {
Class<?> clazz = loader.loadClass(info.getFactoryClassName());
AcceptorFactory factory = (AcceptorFactory) clazz.newInstance();
// Check valid properties
if (info.getParams() != null) {
Set<String> invalid =
ConfigurationHelper.checkKeys(
factory.getAllowableProperties(), info.getParams().keySet());
if (!invalid.isEmpty()) {
HornetQServerLogger.LOGGER.invalidAcceptorKeys(
ConfigurationHelper.stringSetToCommaListString(invalid));
continue;
}
}
String protocol =
ConfigurationHelper.getStringProperty(
TransportConstants.PROTOCOL_PROP_NAME,
TransportConstants.DEFAULT_PROTOCOL,
info.getParams());
ProtocolManager manager = protocolMap.get(protocol);
if (manager == null) {
throw HornetQMessageBundle.BUNDLE.noProtocolManagerFound(protocol);
}
ClusterConnection clusterConnection = lookupClusterConnection(info);
Acceptor acceptor =
factory.createAcceptor(
clusterConnection,
info.getParams(),
new DelegatingBufferHandler(),
manager,
this,
threadPool,
scheduledThreadPool,
manager);
if (defaultInvmSecurityPrincipal != null && acceptor.isUnsecurable()) {
acceptor.setDefaultHornetQPrincipal(defaultInvmSecurityPrincipal);
}
acceptors.add(acceptor);
if (managementService != null) {
acceptor.setNotificationService(managementService);
managementService.registerAcceptor(acceptor, info);
}
} catch (Exception e) {
HornetQServerLogger.LOGGER.errorCreatingAcceptor(e, info.getFactoryClassName());
}
}
for (Acceptor a : acceptors) {
a.start();
}
// This thread checks connections that need to be closed, and also flushes confirmations
failureCheckAndFlushThread =
new FailureCheckAndFlushThread(RemotingServiceImpl.CONNECTION_TTL_CHECK_INTERVAL);
failureCheckAndFlushThread.start();
started = true;
}