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package org.jvnet.glassfish.comms.stun;
import com.sun.appserv.server.LifecycleEvent;
import com.sun.appserv.server.LifecycleEventContext;
import com.sun.appserv.server.LifecycleListener;
import com.sun.appserv.server.ServerLifecycleException;
import com.sun.grizzly.Controller;
import com.sun.grizzly.DefaultPipeline;
import com.sun.grizzly.DefaultProtocolChain;
import com.sun.grizzly.Pipeline;
import com.sun.grizzly.ProtocolChain;
import com.sun.grizzly.ProtocolChainInstanceHandler;
import com.sun.grizzly.UDPSelectorHandler;
import com.sun.grizzly.filter.ReadFilter;
import com.sun.grizzly.util.ByteBufferFactory.ByteBufferType;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.logging.Level;
import java.util.logging.Logger;
public class StunServerLifecycle implements LifecycleListener {
private static Logger logger = Logger.getLogger("stun");
private static final String[] EVENT_TYPES;
private Controller stunController = new Controller();
private Pipeline stunPipeline = null;
private static final int DEFAULT_STUN_PORT = 3478;
private static final String DEFAULT_STUN_LISTEN_ADDRESS = "0.0.0.0";
static {
EVENT_TYPES = new String[5];
EVENT_TYPES[LifecycleEvent.INIT_EVENT] = "INIT_EVENT";
EVENT_TYPES[LifecycleEvent.STARTUP_EVENT] = "STARTUP_EVENT";
EVENT_TYPES[LifecycleEvent.READY_EVENT] = "READY_EVENT";
EVENT_TYPES[LifecycleEvent.SHUTDOWN_EVENT] = "SHUTDOWN_EVENT";
EVENT_TYPES[LifecycleEvent.TERMINATION_EVENT] = "TERMINATION_EVENT";
}
/**
* Handles the event and delegates to methods for each event type
* @param event the LifecycleEvent
* @throws ServerLifecycleException
*/
public void handleEvent(LifecycleEvent event)
throws ServerLifecycleException {
LifecycleEventContext ctx = event.getLifecycleEventContext();
ctx.log("got event" + event.getEventType() + " event data: " +
event.getData());
switch (event.getEventType()) {
case LifecycleEvent.INIT_EVENT:
onInitialization(ctx);
break;
case LifecycleEvent.STARTUP_EVENT:
onStartup(ctx);
break;
case LifecycleEvent.READY_EVENT:
onReady(ctx);
break;
case LifecycleEvent.SHUTDOWN_EVENT:
onShutdown();
break;
case LifecycleEvent.TERMINATION_EVENT:
onTermination();
break;
}
}
/**
* Method to handle the INIT_EVENT
*/
public void onInitialization(LifecycleEventContext sc)
throws ServerLifecycleException {
if (logger.isLoggable(Level.FINE)) {
logger.log(Level.FINE,
"STUNLifecycleListener: In the OnInitialization method");
}
/*
* We should find out where we are running and what it is capable of,
* Does this machine have multiple IP addresses, if no then
* we cannot suppor certain types of STUN requests
*/
StunServerImpl serverImpl = new StunServerImpl(null);
DefaultProtocolChain protocolChain = new DefaultProtocolChain();
protocolChain.setContinuousExecution(false);
ReadFilter readFilter = new ReadFilter();
readFilter.setContinuousExecution(false);
protocolChain.addFilter(readFilter);
protocolChain.addFilter(new StunMessageFilter(serverImpl));
stunPipeline = new DefaultPipeline(10,
2, "stun-pipeline", DEFAULT_STUN_PORT);
stunPipeline.setThreadsIncrement(1);
((DefaultPipeline) stunPipeline).setInitialByteBufferSize(4096);
((DefaultPipeline) stunPipeline).setByteBufferType(ByteBufferType.HEAP);
stunPipeline.setMaxQueueSize(-1);
stunPipeline.initPipeline();
UDPSelectorHandler stunHandler = new UDPSelectorHandler();
stunHandler.setPort(DEFAULT_STUN_PORT);
try {
stunHandler.setInet(InetAddress.getByName(DEFAULT_STUN_LISTEN_ADDRESS));
} catch (UnknownHostException ue) {
ue.printStackTrace();
}
stunHandler.setReuseAddress(true);
stunHandler.setLogger(logger);
ProtocolChainInstanceHandler instanceHandler =
new SimpleProtocolChainInstanceHandler(protocolChain);
stunController.setProtocolChainInstanceHandler(instanceHandler);
stunController.addSelectorHandler(stunHandler);
stunController.setPipeline(stunPipeline);
if (logger.isLoggable(Level.FINE)) {
logger.fine("STUN Controller is ready...");
}
}
/**
* Method to handle the START_EVENT
*/
public void onStartup(LifecycleEventContext sc)
throws ServerLifecycleException {
//Please delegate the work to SipContainer.
if (logger.isLoggable(Level.FINE)) {
logger.fine("STUN... On startup " + stunPipeline + ":" + stunController);
}
new Thread() {
@Override
public void run() {
try {
stunPipeline.startPipeline();
logger.info("STUN Server is ready");
stunController.start();
} catch (Exception ex) {
if (logger.isLoggable(Level.SEVERE)) {
logger.log(Level.SEVERE,
"Cannot start STUN Controller",
new Object[]{"udp", "stun"});
logger.log(Level.SEVERE, ex.getMessage(), ex);
}
}
}
}.start();
}
/**
* Method to handle the READY_EVENT
*/
public void onReady(LifecycleEventContext sc)
throws ServerLifecycleException {
//Please delegate the work to SipContainer.
}
/**
* Method to handle the SHUTDOWN_EVENT
*/
public void onShutdown() throws ServerLifecycleException {
//Please delegate the work to SipContainer.
try {
stunController.stop();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Method to handle the TERMINATION_EVENT
*/
public void onTermination() throws ServerLifecycleException {
//Please delegate the work to SipContainer.
}
class SimpleProtocolChainInstanceHandler
implements ProtocolChainInstanceHandler {
ProtocolChain protocolChain = null;
public SimpleProtocolChainInstanceHandler(ProtocolChain aProtocolChain) {
protocolChain = aProtocolChain;
}
public ProtocolChain getProtocolChain() {
return protocolChain;
}
public ProtocolChain poll() {
return protocolChain;
}
public boolean offer(ProtocolChain instance) {
return true;
}
}
}