Example usage for com.rabbitmq.client BlockedListener handleBlocked

Introduction

In this page you can find the example usage for com.rabbitmq.client BlockedListener handleBlocked.

Prototype

void handleBlocked(String reason) throws IOException;

Source Link

Usage

From source file:de.htwk_leipzig.bis.connection.handshake.clientRewrite.Copyright.java

License:Mozilla Public License

/**
 * Handles incoming control commands on channel zero.
 * /*  w w w . j av a2  s .c  o m*/
 * @see ChannelN#processAsync
 */
@SuppressWarnings("unused")
public boolean processControlCommand(Command c) throws IOException {
    // Similar trick to ChannelN.processAsync used here, except
    // we're interested in whole-connection quiescing.

    // See the detailed comments in ChannelN.processAsync.

    Method method = c.getMethod();

    if (isOpen()) {
        if (method instanceof AMQP.Connection.Close) {
            handleConnectionClose(c);
            return true;
        } else if (method instanceof AMQP.Connection.Blocked) {
            AMQP.Connection.Blocked blocked = (AMQP.Connection.Blocked) method;
            try {
                for (BlockedListener l : this.blockedListeners) {
                    l.handleBlocked(blocked.getReason());
                }
            } catch (Throwable ex) {
                getExceptionHandler().handleBlockedListenerException(this, ex);
            }
            return true;
        } else if (method instanceof AMQP.Connection.Unblocked) {
            try {
                for (BlockedListener l : this.blockedListeners) {
                    l.handleUnblocked();
                }
            } catch (Throwable ex) {
                getExceptionHandler().handleBlockedListenerException(this, ex);
            }
            return true;
        } else {
            return false;
        }
    } else {
        if (method instanceof AMQP.Connection.Close) {
            // Already shutting down, so just send back a CloseOk.
            try {
                _channel0.quiescingTransmit(new AMQP.Connection.CloseOk.Builder().build());
            } catch (IOException _e) {
            } // ignore
            return true;
        } else if (method instanceof AMQP.Connection.CloseOk) {
            // It's our final "RPC". Time to shut down.
            _running = false;
            // If Close was sent from within the MainLoop we
            // will not have a continuation to return to, so
            // we treat this as processed in that case.
            return !_channel0.isOutstandingRpc();
        } else { // Ignore all others.
            return true;
        }
    }
}

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