/*
* Remove the channel from the vector.
*/
private void handleChannelClose(ChannelClose e) {
log.debug(":handleChannelClose: Channel " + e.getChannel().getChannelID() + " closed");
// Access to vectors is synchronized
channels.remove(new Integer(e.getChannel().getChannelID().hashCode()));
try {
e.go();
} catch (AppiaEventException ex) {
System.err.println("Unexpected exception when " + "forwarding ChannelClose event");
}
if (channels.isEmpty()) {
// Terminating
sockReader.terminate();
Iterator iter = multicastReaders.values().iterator();
while (iter.hasNext()) {
UdpSimpleReader reader = (UdpSimpleReader) iter.next();
reader.terminate();
}
}
}
private boolean newSock(int port, InetAddress addr, ThreadFactory threadFactory) {
if (addr == null) {
if (param_LOCAL_ADDRESS == null) addr = HostUtils.getLocalAddress();
else addr = param_LOCAL_ADDRESS;
}
if (port == RegisterSocketEvent.FIRST_AVAILABLE) {
/*first available port*/
try {
sock = new DatagramSocket(0, addr);
} catch (SocketException ex) {
ex.printStackTrace();
return false;
}
} else if (port == RegisterSocketEvent.RANDOMLY_AVAILABLE) {
/*chooses a random port*/
Random random = new Random();
boolean sucess = false;
/*verifies if the random port is a valid one*/
while (!sucess) {
port = Math.abs(random.nextInt() % Short.MAX_VALUE);
/* Open Socket with any port*/
try {
sock = new DatagramSocket(port, addr);
sucess = true;
} catch (IllegalArgumentException ex) {
} catch (SocketException se) {
}
}
} else {
/*Regular RegisterSocketEvent */
/* Open the specified socket (if possible) */
try {
sock = new DatagramSocket(port, addr);
}
/* Socket exception. Possibly the socket is already bound.
Return the event up to notify that the command could not
be issued.
*/
catch (SocketException se) {
return false;
} catch (IllegalArgumentException ex) {
return false;
}
}
// Determine local address
myAddress = new InetSocketAddress(sock.getLocalAddress(), sock.getLocalPort());
try {
sock.setSoTimeout(param_SOTIMEOUT);
} catch (SocketException e) {
System.err.println(
"Unable to set SoTimeout value on UdpSimpleSession. Using default OS value.");
e.printStackTrace();
}
/* The socket is binded. Launch reader*/
// FIXME
sockReader = new UdpSimpleReader(this, sock, myAddress);
Thread t = threadFactory.newThread(sockReader, "UdpSimpleReader [" + myAddress + "]");
sockReader.setParentThread(t);
t.start();
return true;
}
private void handleMulticastInit(MulticastInitEvent e) {
log.debug(":handleAppiaMulticastInit");
if (!multicastReaders.containsKey(e.ipMulticast)) {
/*creates a multicast socket and binds it to a specific port on the local host machine*/
try {
MulticastSocket multicastSock =
new MulticastSocket(((InetSocketAddress) e.ipMulticast).getPort());
log.debug(":handleAppiaMulticastInit: Socket Multicast created. Address: " + e.ipMulticast);
/*joins a multicast group*/
multicastSock.joinGroup(((InetSocketAddress) e.ipMulticast).getAddress());
// keeping the multicast address...
ipMulticast =
new InetSocketAddress(
((InetSocketAddress) e.ipMulticast).getAddress(),
((InetSocketAddress) e.ipMulticast).getPort());
log.debug(":handleAppiaMulticastInit: Socket Multicast joined.");
try {
multicastSock.setSoTimeout(param_SOTIMEOUT);
} catch (SocketException se) {
System.err.println(
"Unable to set SoTimeout value on UdpSimpleSession. Using default OS value.");
se.printStackTrace();
}
/* The socket is binded. Launch reader and return the event.*/
final UdpSimpleReader multicastReader =
new UdpSimpleReader(this, multicastSock, ipMulticast, e.fullDuplex ? null : myAddress);
final Thread thread =
e.getChannel()
.getThreadFactory()
.newThread(multicastReader, "MulticastReaderThread [" + ipMulticast + "]");
multicastReader.setParentThread(thread);
thread.start();
multicastReaders.put(ipMulticast, multicastReader);
/*forwarding the event*/
e.error = false;
} catch (IOException ex) {
ex.printStackTrace();
System.err.println("Error creating/joining the multicast socket");
e.error = true;
}
} else {
log.debug(":handleAppiaMulticastInit: Requested multicast socket already existed.");
}
try {
e.setDir(Direction.invert(e.getDir()));
e.setSource(this);
e.init();
e.go();
log.debug(":handleAppiaMulticastInit: Returning multicastInit with error code: " + e.error);
log.debug(
":handleAppiaMulticastInit: Direction is "
+ (e.getDir() == Direction.DOWN ? "DOWN" : "UP"));
} catch (AppiaEventException ex) {
ex.printStackTrace();
}
}
