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/*
* Copyright 1999-2004 The Apache Software Foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
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package com.sun.enterprise.web.connector.grizzly.blocking;
import com.sun.enterprise.web.connector.grizzly.ProcessorTask;
import com.sun.enterprise.web.connector.grizzly.DefaultProcessorTask;
import com.sun.enterprise.web.connector.grizzly.SecureSelector;
import com.sun.enterprise.web.connector.grizzly.SelectorThread;
import com.sun.enterprise.web.connector.grizzly.SelectorThreadConfig;
import java.io.IOException;
import java.io.InterruptedIOException;
import java.net.BindException;
import java.net.Socket;
import java.net.SocketException;
import java.security.AccessControlException;
import java.util.logging.Level;
import org.apache.tomcat.util.net.SSLImplementation;
import org.apache.tomcat.util.net.ServerSocketFactory;
/**
* Blocking <code>SocketServer</code> implementation.
*
* @author jean-Francois Arcand
*/
public class SelectorBlockingThread extends SelectorThread
implements SecureSelector<SSLImplementation>{
protected SSLImplementation sslImplementation = null;
/**
* Is SSL enabled
*/
private boolean secure = false;
private ServerSocketFactory factory;
/**
* initialized the endpoint by creating the <code>ServerSocketChannel</code>
* and by initializing the server socket.
*/
public void initEndpoint() throws IOException, InstantiationException {
SelectorThreadConfig.configure(this);
initFileCacheFactory();
initAlgorithm();
initPipeline();
initMonitoringLevel();
setName("SelectorThread-" + getPort());
try{
if (getInet() == null) {
setServerSocket(getServerSocketFactory().createSocket(getPort(),
getSsBackLog()));
} else {
setServerSocket(getServerSocketFactory().createSocket(getPort(),
getSsBackLog(), getInet()));
}
getServerSocket().setReuseAddress(true);
} catch (SocketException ex){
throw new BindException(ex.getMessage() + ": " + getPort());
}
getServerSocket().setSoTimeout(getServerTimeout());
initReadBlockingTask(getMinReadQueueLength());
setInitialized(true);
getLogger().log(Level.FINE,"Initializing Grizzly Blocking Mode");
}
/**
* Create a pool of <code>ReadBlockingTask</code>
*/
private void initReadBlockingTask(int size){
for (int i=0; i < size; i++){
getReadTasks().offer(newReadBlockingTask(false));
}
}
/**
* Create a <code>ReadBlockingTask</code> instance used with blocking
* socket.
*/
private ReadBlockingTask newReadBlockingTask(boolean initialize){
ReadBlockingTask task = new ReadBlockingTask();
task.setSelectorThread(this);
task.setPipeline(getProcessorPipeline());
task.setRecycle(isRecycleTasks());
task.attachProcessor(newProcessorTask(initialize));
task.setPipelineStatistic(getPipelineStat());
task.setSecure(secure);
return task;
}
/**
* Return a <code>ReadBlockingTask</code> from the pool.
* If the pool is empty,
* create a new instance.
*/
protected ReadBlockingTask getReadBlockingTask(Socket socket){
ReadBlockingTask task = null;
if (isRecycleTasks()) {
task = (ReadBlockingTask)getReadTasks().poll();
}
if (task == null){
task = newReadBlockingTask(false);
}
ProcessorTask processorTask = task.getProcessorTask();
processorTask.setSocket(socket);
return task;
}
/**
* Handle a blocking operation on the socket.
*/
private void handleConnection(Socket socket) throws IOException{
if (isMonitoringEnabled()) {
getGlobalRequestProcessor().increaseCountOpenConnections();
getPipelineStat().incrementTotalAcceptCount();
}
getReadBlockingTask(socket).execute();
}
protected void setSocketOptions(Socket socket){
super.setSocketOptions(socket);
if( getKeepAliveTimeoutInSeconds() > 0){
try{
socket.setSoTimeout( getKeepAliveTimeoutInSeconds() * 1000 );
} catch (SocketException ex){
logger.log(Level.WARNING,
"setSoTimeout exception ",ex);
}
}
}
/**
* Start the Acceptor Thread and wait for incoming connection, in a non
* blocking mode.
*/
public void startEndpoint() throws IOException, InstantiationException {
setRunning(true);
rampUpProcessorTask();
registerComponents();
startPipelines();
startListener();
}
protected Socket acceptSocket() {
if( !isRunning() || getServerSocket()==null ) return null;
Socket socket = null;
try {
if(getServerSocketFactory()==null) {
socket = getServerSocketChannel().accept().socket();
} else {
socket = getServerSocketFactory().acceptSocket(getServerSocket());
}
if (null == socket) {
getLogger().log(Level.WARNING,"selectorThread.acceptSocket");
} else {
if (!isRunning()) {
socket.close(); // rude, but unlikely!
socket = null;
} else if (getServerSocketFactory() != null) {
getServerSocketFactory().initSocket( socket );
}
}
} catch(InterruptedIOException iioe) {
// normal part -- should happen regularly so
// that the endpoint can release if the server
// is shutdown.
} catch (AccessControlException ace) {
// When using the Java SecurityManager this exception
// can be thrown if you are restricting access to the
// socket with SocketPermission's.
// Log the unauthorized access and continue
getLogger().log(Level.WARNING,"selectorThread.wrongPermission",
new Object[]{getServerSocket(), ace});
} catch (IOException e) {
String msg = null;
if (isRunning()) {
getLogger().log(Level.SEVERE,"selectorThread.shutdownException",
new Object[]{getServerSocket(), e});
}
if (socket != null) {
try {
socket.close();
} catch(Throwable ex) {
getLogger().log(Level.SEVERE,"selectorThread.shutdownException",
new Object[]{getServerSocket(), ex});
}
socket = null;
}
if( !isRunning() ) return null;
} catch (Throwable t) {
try{
if (socket != null)
socket.close();
} catch (IOException ex){
;
}
getLogger().log(Level.FINE,
"selectorThread.errorOnRequest",
t);
}
return socket;
}
/**
* Start a blocking server <code>Socket</code>
*/
protected void startListener(){
Socket socket = null;
while (isRunning()){
socket = acceptSocket();
if (socket == null) {
continue;
}
try {
handleConnection(socket);
} catch (Throwable ex) {
getLogger().log(Level.FINE,
"selectorThread.handleConnectionException",
ex);
try {
socket.close();
} catch (IOException ioe){
// Do nothing
}
continue;
}
}
}
/**
* Create <code>ProcessorTask</code> objects and configure it to be ready
* to proceed request.
*/
protected DefaultProcessorTask newProcessorTask(boolean initialize){
ProcessorBlockingTask task = new ProcessorBlockingTask(initialize);
configureProcessorTask(task);
task.setMaxKeepAliveRequests(getMaxKeepAliveRequests());
if (secure){
task.setSSLImplementation(sslImplementation);
}
return task;
}
/**
* Return the <code>ServerSocketFactory</code> used when a blocking IO
* is enabled.
*/
public ServerSocketFactory getServerSocketFactory(){
return factory;
}
/**
* Set the <code>ServerSocketFactory</code> used when a blocking IO
* is enabled.
*/
public void setServerSocketFactory(ServerSocketFactory factory){
this.factory = factory;
}
public void setSecure(boolean secure){
this.secure = secure;
}
/**
* Return the current <code>SSLImplementation</code> this Thread
*/
public SSLImplementation getSSLImplementation() {
return sslImplementation;
}
/**
* Set the <code>SSLImplementation</code> used by this thread.It usually
* means HTTPS will be used.
*/
public void setSSLImplementation( SSLImplementation sslImplementation) {
this.sslImplementation = sslImplementation;
}
// --------------------------------------------------- Not used ----------//
public String[] getEnabledCipherSuites() {
return null;
}
public void setEnabledCipherSuites(String[] enabledCipherSuites) {
}
public String[] getEnabledProtocols() {
return null;
}
public void setEnabledProtocols(String[] enabledProtocols) {
}
public boolean isClientMode() {
return false;
}
public void setClientMode(boolean clientMode) {
}
public boolean isNeedClientAuth() {
return false;
}
public void setNeedClientAuth(boolean needClientAuth) {
}
public boolean isWantClientAuth() {
return false;
}
public void setWantClientAuth(boolean wantClientAuth) {
}
}
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