// Check if the datagramsocket adaptor can send with a packet
// that has not been initialized with an address; the legacy
// datagram socket will send in this case
private static void test2() throws Exception {
DatagramChannel sndChannel = DatagramChannel.open();
sndChannel.socket().bind(null);
InetSocketAddress sender =
new InetSocketAddress(InetAddress.getLocalHost(), sndChannel.socket().getLocalPort());
DatagramChannel rcvChannel = DatagramChannel.open();
rcvChannel.socket().bind(null);
InetSocketAddress receiver =
new InetSocketAddress(InetAddress.getLocalHost(), rcvChannel.socket().getLocalPort());
rcvChannel.connect(sender);
sndChannel.connect(receiver);
byte b[] = "hello".getBytes("UTF-8");
DatagramPacket pkt = new DatagramPacket(b, b.length);
sndChannel.socket().send(pkt);
ByteBuffer bb = ByteBuffer.allocate(256);
rcvChannel.receive(bb);
bb.flip();
CharBuffer cb = Charset.forName("US-ASCII").newDecoder().decode(bb);
if (!cb.toString().startsWith("h")) throw new RuntimeException("Test failed");
// Check that the pkt got set with the target address;
// This is legacy behavior
if (!pkt.getSocketAddress().equals(receiver)) throw new RuntimeException("Test failed");
rcvChannel.close();
sndChannel.close();
}
/** The listening thread's run method. */
@Override
public void run() {
DatagramPacket packet = null;
while (this.running) {
try {
IceSocketWrapper localSock;
synchronized (sockLock) {
if (!running) return;
localSock = this.sock;
}
/*
* Make sure localSock's receiveBufferSize is taken into
* account including after it gets changed.
*/
int receiveBufferSize = 1500;
/*
if(localSock.getTCPSocket() != null)
{
receiveBufferSize = localSock.getTCPSocket().
getReceiveBufferSize();
}
else if(localSock.getUDPSocket() != null)
{
receiveBufferSize = localSock.getUDPSocket().
getReceiveBufferSize();
}
*/
if (packet == null) {
packet = new DatagramPacket(new byte[receiveBufferSize], receiveBufferSize);
} else {
byte[] packetData = packet.getData();
if ((packetData == null) || (packetData.length < receiveBufferSize)) {
packet.setData(new byte[receiveBufferSize], 0, receiveBufferSize);
} else {
/*
* XXX Tell the packet it is large enough because the
* socket will not look at the length of the data array
* property and will just respect the length property.
*/
packet.setLength(receiveBufferSize);
}
}
localSock.receive(packet);
// get lost if we are no longer running.
if (!running) return;
logger.finest("received datagram");
RawMessage rawMessage =
new RawMessage(
packet.getData(),
packet.getLength(),
new TransportAddress(
packet.getAddress(), packet.getPort(), listenAddress.getTransport()),
listenAddress);
messageQueue.add(rawMessage);
} catch (SocketException ex) {
if (running) {
logger.log(
Level.WARNING, "Connector died: " + listenAddress + " -> " + remoteAddress, ex);
stop();
// Something wrong has happened
errorHandler.handleFatalError(
this, "A socket exception was thrown" + " while trying to receive a message.", ex);
} else {
// The exception was most probably caused by calling
// this.stop().
}
} catch (ClosedChannelException cce) {
logger.log(Level.WARNING, "A net access point has gone useless:", cce);
stop();
errorHandler.handleFatalError(
this, "ClosedChannelException occurred while listening" + " for messages!", cce);
} catch (IOException ex) {
logger.log(Level.WARNING, "A net access point has gone useless:", ex);
errorHandler.handleError(ex.getMessage(), ex);
// do not stop the thread;
} catch (Throwable ex) {
logger.log(Level.WARNING, "A net access point has gone useless:", ex);
stop();
errorHandler.handleFatalError(
this, "Unknown error occurred while listening for messages!", ex);
}
}
}