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package com.sun.enterprise.v3.services.impl;
import com.sun.grizzly.Controller;
import com.sun.grizzly.DefaultProtocolChainInstanceHandler;
import com.sun.grizzly.ProtocolChain;
import com.sun.grizzly.TCPSelectorHandler;
import com.sun.grizzly.config.dom.NetworkListener;
import com.sun.grizzly.http.HttpProtocolChain;
import com.sun.grizzly.http.SelectorThread;
import org.jvnet.hk2.component.Habitat;
import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.ResourceBundle;
import java.util.concurrent.ConcurrentLinkedQueue;
import java.util.logging.Level;
/**
* Implementation of a generic listener for various
* services started lazily by Grizzly
*
* @author Vijay Ramachandran
*/
public class ServiceInitializerThread extends SelectorThread {
/**
* The resource bundle containing the message strings for logger.
*/
protected static final ResourceBundle _rb = logger.getResourceBundle();
private GrizzlyListener service;
private Habitat habitat;
/**
* Constructor
*
* @param grizzlyListener
*/
public ServiceInitializerThread(GrizzlyListener grizzlyListener, Habitat h) {
service = grizzlyListener;
habitat = h;
setClassLoader(getClass().getClassLoader());
}
public Habitat getHabitat() {
return this.habitat;
}
public GrizzlyListener getGrizzlyListener () {
return this.service;
}
/**
* Set a dummy protocol chain and filter. The LWL should never have to come to this place
* TBD : Do we need this ? Can this be set to null ?
*/
@Override
protected void initController() {
final Controller c = new Controller() {
@Override
public void logVersion() {
// no-op
}
};
super.setController(c);
super.initController();
final DefaultProtocolChainInstanceHandler instanceHandler = new DefaultProtocolChainInstanceHandler() {
private final ConcurrentLinkedQueue<ProtocolChain> chains =
new ConcurrentLinkedQueue<ProtocolChain>();
/**
* Always return instance of ProtocolChain.
*/
@Override
public ProtocolChain poll() {
ProtocolChain protocolChain = chains.poll();
if (protocolChain == null) {
protocolChain = new HttpProtocolChain();
configureFilters(protocolChain);
}
return protocolChain;
}
/**
* Pool an instance of ProtocolChain.
*/
@Override
public boolean offer(ProtocolChain instance) {
return chains.offer(instance);
}
};
controller.setProtocolChainInstanceHandler(instanceHandler);
controller.setReadThreadsCount(readThreadsCount);
Runtime.getRuntime().addShutdownHook(new Thread() {
@Override
public void run() {
stopEndpoint();
}
});
}
public void configureFilters(ProtocolChain chain) {
ServiceInitializerFilter readFilter = new ServiceInitializerFilter();
chain.addFilter(readFilter);
}
protected TCPSelectorHandler createSelectorHandler() {
return new ServiceInitializerHandler(this);
}
@Override
public void stopEndpoint() {
try {
super.stopEndpoint();
} catch (Throwable t) {
logger.log(Level.SEVERE, "Unable to stop properly", t);
} finally {
// Force the Selector(s) to be closed in case an unexpected
// exception occured during shutdown.
try {
if (selectorHandler != null
&& selectorHandler.getSelector() != null) {
selectorHandler.getSelector().close();
}
} catch (IOException ex) {
}
}
}
public void configure(NetworkListener networkListener) {
setPort(Integer.parseInt(networkListener.getPort()));
try {
setAddress(InetAddress.getByName(networkListener.getAddress()));
} catch (UnknownHostException e) {
logger.log(Level.WARNING, "Invalid address for {0}: {1}",
new Object[]{
networkListener.getName(),
networkListener.getAddress()
});
}
}
}