private void advertiseHeartbeat() {
String advStr =
"[class,eq,"
+ HeartbeatSubscriber.MESSAGE_CLASS
+ "],"
+ "[brokerID,isPresent,'TEXT'],"
+ "[fromID,eq,'"
+ m_BrokerCore.getBrokerID()
+ "'],"
+ "[type,isPresent,'TEXT'],"
+ "[handle,isPresent,'TEXT']";
Advertisement adv;
try {
adv = MessageFactory.createAdvertisementFromString(advStr);
} catch (ParseException e) {
exceptionLogger.error(e.getMessage());
return;
}
AdvertisementMessage msg =
new AdvertisementMessage(
adv, m_BrokerCore.getNewMessageID(), MessageDestination.HEARTBEAT_MANAGER);
msg.setTTL(1);
heartbeatLogger.debug("Sending initial advertisement for heartbeat.");
m_BrokerCore.routeMessage(msg, MessageDestination.INPUTQUEUE);
}
/**
* Send an advertisement to a broker. The advertisemnet is given as a String comforming the PADRES
* message format. The broker is specified with its URI.
*
* @param advStr The advertisement string conforming PADRES message format.
* @param brokerURI The URI of the broker to send the advertisement to.
* @return The {@link AdvertisementMessage} produced by the given advertisement string. The
* message ID of the message is returned by the broker.
* @throws ClientException Either their is a syntax error the advertisement string or other error
* during advertisement.
* @throws ParseException
* @see #advertise(Advertisement, String)
*/
public AdvertisementMessage advertise(String advStr, String brokerURI)
throws ClientException, ParseException {
Advertisement newAdv = MessageFactory.createAdvertisementFromString(advStr);
if (newAdv.getClassVal() == null) {
throw new ClientException("Advertisement syntax error");
}
return advertise(newAdv, brokerURI);
}
