protected Object getNextMessage(Object resource) throws Exception {
Object readMsg = null;
try {
readMsg = protocol.read(dataIn);
if (dataIn.isStreaming()) {
moreMessages = false;
}
return readMsg;
} catch (SocketTimeoutException e) {
if (!socket.getKeepAlive()) {
return null;
}
} finally {
if (readMsg == null) {
// Protocols can return a null object, which means we're done
// reading messages for now and can mark the stream for closing later.
// Also, exceptions can be thrown, in which case we're done reading.
dataIn.close();
}
}
return null;
}
/** {@inheritDoc} */
public Object getOption(SocketOption name) throws IOException {
if (!(name instanceof StandardSocketOption)) {
throw new IllegalArgumentException("Unsupported option " + name);
}
StandardSocketOption stdOpt = (StandardSocketOption) name;
final Socket socket = channel.socket();
try {
switch (stdOpt) {
case SO_SNDBUF:
return socket.getSendBufferSize();
case SO_RCVBUF:
return socket.getReceiveBufferSize();
case SO_KEEPALIVE:
return socket.getKeepAlive();
case SO_REUSEADDR:
return socket.getReuseAddress();
case TCP_NODELAY:
return socket.getTcpNoDelay();
default:
throw new IllegalArgumentException("Unsupported option " + name);
}
} catch (SocketException e) {
if (socket.isClosed()) {
throw Util.initCause(new ClosedChannelException(), e);
}
throw e;
}
}
public static void printSocketParameters(Socket cl) throws SocketException {
boolean SO_KEEPALIVE = cl.getKeepAlive();
boolean TCP_NODELAY = cl.getTcpNoDelay();
int SO_LINGER = cl.getSoLinger();
int SO_TIMEOUT = cl.getSoTimeout();
int SO_RCVBUF = cl.getReceiveBufferSize();
int SO_SNDBUF = cl.getSendBufferSize();
int trafficClassVal = cl.getTrafficClass();
/*
0 <= trafficClassVal <= 255
IPTOS_LOWCOST (0x02)
IPTOS_RELIABILITY (0x04)
IPTOS_THROUGHPUT (0x08)
IPTOS_LOWDELAY (0x10)
*/
int remotePort = cl.getPort();
int localPort = cl.getLocalPort();
String localIP = getIPstr(cl.getLocalAddress());
String remoteIP = getIPstr(cl.getInetAddress());
System.out.println("Socket Paramaters :");
System.out.println("SO_KEEPAILVE = " + SO_KEEPALIVE + " TCP_NODELAY = " + TCP_NODELAY);
System.out.println("SO_LINGER = " + SO_LINGER + " SO_TIMEOUT = " + SO_TIMEOUT);
System.out.println("SO_RCVBUF = " + SO_RCVBUF + " SO_SNDBUF = " + SO_SNDBUF);
System.out.println("Traffic Class = " + trafficClassVal);
System.out.println("Local Address = " + localIP + ":" + localPort);
System.out.println("Remote Address = " + remoteIP + ":" + remotePort);
}
@Override
public boolean isKeepAlive() {
try {
return socket.getKeepAlive();
} catch (SocketException e) {
throw new ChannelException(e);
}
}
public static void main(String args[]) {
try {
ServerSocket serverSocket = new ServerSocket(4100);
Socket socket = serverSocket.accept();
System.out.println(socket.getKeepAlive());
BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
System.out.println(in.readLine());
serverSocket.close();
} catch (Exception e) {
System.err.print(e);
}
}
@Override
public boolean getKeepAlive() throws SocketException {
return sock.getKeepAlive();
}
public boolean getKeepAlive() throws SocketException {
return mSocket.getKeepAlive();
}