/**
* Starts up the channel. This can be called multiple times for individual services to start The
* svc parameter can be the logical or value of any constants
*
* @param svc int value of <br>
* DEFAULT - will start all services <br>
* MBR_RX_SEQ - starts the membership receiver <br>
* MBR_TX_SEQ - starts the membership broadcaster <br>
* SND_TX_SEQ - starts the replication transmitter<br>
* SND_RX_SEQ - starts the replication receiver<br>
* @throws ChannelException if a startup error occurs or the service is already started.
*/
protected synchronized void internalStart(int svc) throws ChannelException {
try {
boolean valid = false;
// make sure we don't pass down any flags that are unrelated to the bottom layer
svc = svc & Channel.DEFAULT;
if (startLevel == Channel.DEFAULT) return; // we have already started up all components
if (svc == 0) return; // nothing to start
if (svc == (svc & startLevel)) {
throw new ChannelException(
sm.getString("channelCoordinator.alreadyStarted", Integer.toString(svc)));
}
// must start the receiver first so that we can coordinate the port it
// listens to with the local membership settings
if (Channel.SND_RX_SEQ == (svc & Channel.SND_RX_SEQ)) {
clusterReceiver.setMessageListener(this);
clusterReceiver.start();
// synchronize, big time FIXME
membershipService.setLocalMemberProperties(
getClusterReceiver().getHost(),
getClusterReceiver().getPort(),
getClusterReceiver().getSecurePort(),
getClusterReceiver().getUdpPort());
valid = true;
}
if (Channel.SND_TX_SEQ == (svc & Channel.SND_TX_SEQ)) {
clusterSender.start();
valid = true;
}
if (Channel.MBR_RX_SEQ == (svc & Channel.MBR_RX_SEQ)) {
membershipService.setMembershipListener(this);
if (membershipService instanceof McastService) {
((McastService) membershipService).setMessageListener(this);
}
membershipService.start(MembershipService.MBR_RX);
valid = true;
}
if (Channel.MBR_TX_SEQ == (svc & Channel.MBR_TX_SEQ)) {
membershipService.start(MembershipService.MBR_TX);
valid = true;
}
if (!valid) {
throw new IllegalArgumentException(sm.getString("channelCoordinator.invalid.startLevel"));
}
startLevel = (startLevel | svc);
} catch (ChannelException cx) {
throw cx;
} catch (Exception x) {
throw new ChannelException(x);
}
}
/**
* Shuts down the channel. This can be called multiple times for individual services to shutdown
* The svc parameter can be the logical or value of any constants
*
* @param svc int value of <br>
* DEFAULT - will shutdown all services <br>
* MBR_RX_SEQ - starts the membership receiver <br>
* MBR_TX_SEQ - starts the membership broadcaster <br>
* SND_TX_SEQ - starts the replication transmitter<br>
* SND_RX_SEQ - starts the replication receiver<br>
* @throws ChannelException if a startup error occurs or the service is already started.
*/
protected synchronized void internalStop(int svc) throws ChannelException {
try {
// make sure we don't pass down any flags that are unrelated to the bottom layer
svc = svc & Channel.DEFAULT;
if (startLevel == 0) return; // we have already stopped up all components
if (svc == 0) return; // nothing to stop
boolean valid = false;
if (Channel.SND_RX_SEQ == (svc & Channel.SND_RX_SEQ)) {
clusterReceiver.stop();
clusterReceiver.setMessageListener(null);
valid = true;
}
if (Channel.SND_TX_SEQ == (svc & Channel.SND_TX_SEQ)) {
clusterSender.stop();
valid = true;
}
if (Channel.MBR_RX_SEQ == (svc & Channel.MBR_RX_SEQ)) {
membershipService.stop(MembershipService.MBR_RX);
membershipService.setMembershipListener(null);
valid = true;
}
if (Channel.MBR_TX_SEQ == (svc & Channel.MBR_TX_SEQ)) {
valid = true;
membershipService.stop(MembershipService.MBR_TX);
}
if (!valid) {
throw new IllegalArgumentException(sm.getString("channelCoordinator.invalid.startLevel"));
}
startLevel = (startLevel & (~svc));
} catch (Exception x) {
throw new ChannelException(x);
}
}
