Examples with StalledSessionsFilter org.jivesoftware.openfire.net.StalledSessionsFilter used on opensource projects

Example 1 with StalledSessionsFilter

use of org.jivesoftware.openfire.net.StalledSessionsFilter in project Openfire by igniterealtime.

the class MINAConnectionAcceptor method start.

/**
     * Starts this acceptor by binding the socket acceptor. When the acceptor is already started, a warning will be
     * logged and the method invocation is otherwise ignored.
     */
@Override
public synchronized void start() {
    if (socketAcceptor != null) {
        Log.warn("Unable to start acceptor (it is already started!)");
        return;
    }
    try {
        // Configure the thread pool that is to be used.
        final int initialSize = (configuration.getMaxThreadPoolSize() / 4) + 1;
        final ExecutorFilter executorFilter = new ExecutorFilter(initialSize, configuration.getMaxThreadPoolSize(), 60, TimeUnit.SECONDS);
        final ThreadPoolExecutor eventExecutor = (ThreadPoolExecutor) executorFilter.getExecutor();
        final ThreadFactory threadFactory = new NamedThreadFactory(name + "-thread-", eventExecutor.getThreadFactory(), true, null);
        eventExecutor.setThreadFactory(threadFactory);
        // Construct a new socket acceptor, and configure it.
        socketAcceptor = buildSocketAcceptor();
        if (JMXManager.isEnabled()) {
            configureJMX(socketAcceptor, name);
        }
        final DefaultIoFilterChainBuilder filterChain = socketAcceptor.getFilterChain();
        filterChain.addFirst(ConnectionManagerImpl.EXECUTOR_FILTER_NAME, executorFilter);
        // Add the XMPP codec filter
        filterChain.addAfter(ConnectionManagerImpl.EXECUTOR_FILTER_NAME, ConnectionManagerImpl.XMPP_CODEC_FILTER_NAME, new ProtocolCodecFilter(new XMPPCodecFactory()));
        // Kill sessions whose outgoing queues keep growing and fail to send traffic
        filterChain.addAfter(ConnectionManagerImpl.XMPP_CODEC_FILTER_NAME, ConnectionManagerImpl.CAPACITY_FILTER_NAME, new StalledSessionsFilter());
        // Ports can be configured to start connections in SSL (as opposed to upgrade a non-encrypted socket to an encrypted one, typically using StartTLS)
        if (configuration.getTlsPolicy() == Connection.TLSPolicy.legacyMode) {
            final SslFilter sslFilter = encryptionArtifactFactory.createServerModeSslFilter();
            filterChain.addAfter(ConnectionManagerImpl.EXECUTOR_FILTER_NAME, ConnectionManagerImpl.TLS_FILTER_NAME, sslFilter);
        }
        // Throttle sessions who send data too fast
        if (configuration.getMaxBufferSize() > 0) {
            socketAcceptor.getSessionConfig().setMaxReadBufferSize(configuration.getMaxBufferSize());
            Log.debug("Throttling read buffer for connections to max={} bytes", configuration.getMaxBufferSize());
        }
        // Start accepting connections
        socketAcceptor.setHandler(connectionHandler);
        socketAcceptor.bind(new InetSocketAddress(configuration.getBindAddress(), configuration.getPort()));
    } catch (Exception e) {
        System.err.println("Error starting " + configuration.getPort() + ": " + e.getMessage());
        Log.error("Error starting: " + configuration.getPort(), e);
        // Reset for future use.
        if (socketAcceptor != null) {
            try {
                socketAcceptor.unbind();
            } finally {
                socketAcceptor = null;
            }
        }
    }
}