Example usage for com.liferay.portal.kernel.messaging MessageBusUtil hasMessageListener

Introduction

In this page you can find the example usage for com.liferay.portal.kernel.messaging MessageBusUtil hasMessageListener.

Prototype

public static boolean hasMessageListener(String destination) 

Source Link

Usage

From source file:com.liferay.deploylistener.hook.deploy.DeployListenerDeployManagerImpl.java

License:Open Source License

protected boolean sendMesssage(String context, String command) {
    String destinationName = "liferay/deploy_listener/" + context;

    if (!MessageBusUtil.hasMessageListener(destinationName)) {
        return true;
    }/*from   w w  w.j  av a2 s.  com*/

    for (int i = 0; i < PortletPropsValues.MESSAGE_MAX_ATTEMPTS; i++) {
        Message message = new Message();

        message.put(MESSAGE_KEY_COMMAND, command);
        message.put(MESSAGE_KEY_CONTEXT, context);

        try {
            if (_log.isDebugEnabled()) {
                _log.debug("Send message " + i + " for context " + context + " with command " + command);
            }

            Object response = MessageBusUtil.sendSynchronousMessage(destinationName, message,
                    PortletPropsValues.MESSAGE_TIMEOUT);

            if (_log.isDebugEnabled()) {
                _log.debug("Message " + i + " for context " + context + " with command " + command
                        + " received response " + response);
            }

            if (response.equals(MESSAGE_RESPONSE_SKIP)) {
                return false;
            } else if (response.equals(MESSAGE_RESPONSE_SUCCESS)) {
                return true;
            } else if (response.equals(MESSAGE_RESPONSE_WAIT)) {
                continue;
            } else {
                return true;
            }
        } catch (MessageBusException mbe) {
            if (_log.isWarnEnabled()) {
                _log.warn(mbe.getMessage());
            }
        }

        try {
            Thread.sleep(PortletPropsValues.MESSAGE_TIMEOUT);
        } catch (InterruptedException ie) {
            _log.error(ie, ie);

            return true;
        }
    }

    return true;
}

---