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package com.sun.enterprise.ee.web.sessmgmt;
import net.jxta.peer.PeerID;
import net.jxta.peergroup.PeerGroup;
import net.jxta.protocol.PipeAdvertisement;
import net.jxta.socket.JxtaServerSocket;
import net.jxta.socket.JxtaSocket;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
/**
* @author bhavanishankar@dev.java.net
*/
public class JxtaSocketChannel extends AbstractSocketChannel {
private static volatile JxtaSocketChannel INSTANCE = null;
private static int timeout = 5000;
private ServerSocket serverSocket = null;
private PlainSocketChannel plainSocketChannel = null;
static {
String s = System.getProperty("jxtaSocketChannelTimeout");
if (s != null) {
try {
timeout = Integer.parseInt(s);
if (timeout < 5000)
timeout = 5000;
} catch (Exception e) {
timeout = 5000;
}
}
}
public static JxtaSocketChannel getInstance() {
if (INSTANCE == null) {
synchronized (JxtaSocketChannel.class) {
if (INSTANCE == null) {
INSTANCE = new JxtaSocketChannel();
}
}
}
return INSTANCE;
}
private JxtaSocketChannel() {
initialize();
startAccepting();
plainSocketChannel = PlainSocketChannel.getInstance();
}
private void initialize() {
try {
PipeAdvertisement pipeAdv = JxtaUtil.getServerSocketAdv(
ReplicationUtil.getInstanceName() + "-OOB");
JxtaStarter jxtaStarter = JxtaStarter.createInstance();
PeerGroup netPeerGroup = jxtaStarter.getNetPeerGroup();
serverSocket = new JxtaServerSocket(netPeerGroup, pipeAdv);
serverSocket.setSoTimeout(0);
logger.info(getClass().getName() + " created server socket successfully");
} catch (Exception ex) {
logger.log(Level.WARNING, "Unable to initialize " + getClass().getName(), ex);
throw new RuntimeException(ex);
}
}
/**
* Connect to the given destination.
*
* @param instanceName name of the destination instance.
* @return Socket connection to the destination instance.
*/
protected Socket connect(String instanceName) {
JxtaStarter jxtaStarter = JxtaStarter.createInstance();
PeerGroup netPeerGroup = jxtaStarter.getNetPeerGroup();
PipeAdvertisement pipeAdv = JxtaUtil.getServerSocketAdv(instanceName + "-OOB");
Socket socket = null;
PeerID peerId = null;
try {
peerId = JxtaUtil.getPeerID(instanceName);
} catch (Exception ex) {
logger.log(Level.WARNING, "Unable to get the peerId for " +
instanceName + ". Trying to connect without peerId.", ex);
}
try {
socket = new JxtaSocket(
netPeerGroup, // group
peerId, // peerId
pipeAdv, // remote pipe adv
timeout, // connect timeout
true // reliable or not
);
} catch (Exception ex) {
logger.log(Level.WARNING, "Unable to connect to " + instanceName, ex);
logger.info("Failed to connect using jxta socket. Trying to get a plain socket");
socket = plainSocketChannel.connect(instanceName);
logger.info("Obtained a plain socket " + socket);
}
return socket;
}
public ServerSocket getServerSocket() {
return serverSocket;
}
}