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*
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*
* Copyright 2007-2008 Sun Microsystems, Inc. All rights reserved.
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* General Public License Version 2 only ("GPL") or the Common Development
* and Distribution License("CDDL") (collectively, the "License"). You
* may not use this file except in compliance with the License. You can obtain
* a copy of the License at https://glassfish.dev.java.net/public/CDDL+GPL.html
* or glassfish/bootstrap/legal/LICENSE.txt. See the License for the specific
* language governing permissions and limitations under the License.
*
* When distributing the software, include this License Header Notice in each
* file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
* Sun designates this particular file as subject to the "Classpath" exception
* as provided by Sun in the GPL Version 2 section of the License file that
* accompanied this code. If applicable, add the following below the License
* Header, with the fields enclosed by brackets [] replaced by your own
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package com.sun.grizzly.util;
import java.nio.ByteBuffer;
import java.nio.channels.SelectionKey;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.locks.ReentrantLock;
import javax.net.ssl.SSLEngine;
/**
* This object represent the state of a {@link WorkerThread}. This include
* the ByteBuffer binded to the WorkerThread, application data etc.
*
* @author Jeanfrancois Arcand
* @author Alexey Stashok
*/
public class ThreadAttachment extends SelectionKeyActionAttachment
implements AttributeHolder {
/**
* The maximum time this object can be associated with an active {@link Thread}
*/
private long activeThreadTimeout = UNLIMITED_TIMEOUT;
public static class Mode {
public static int ATTRIBUTES_ONLY = 0;
public static int BYTE_BUFFER = 2;
public static int INPUT_BB = 4;
public static int OUTPUT_BB = 8;
public static int SECURE_BUFFERS = 12;
public static int SSL_ENGINE = 16;
public static int SSL_ARTIFACTS = 28;
public static int STORE_ALL = 31;
};
private ReentrantLock threadLock = new ReentrantLock();
private String threadName;
private Map attributes;
private ByteBuffer byteBuffer;
/**
* The encrypted ByteBuffer used for handshaking and reading request bytes.
*/
private ByteBuffer inputBB;
/**
* The encrypted ByteBuffer used for handshaking and writing response bytes.
*/
private ByteBuffer outputBB;
/**
* The{@link SSLEngine} used to manage the SSL over NIO request.
*/
private SSLEngine sslEngine;
/**
* ThreadAttachment store mode
*/
private int mode;
/**
* The current {@link ThreadFactory} used to execute this instance.
*/
private Thread activeThread = null;
public ThreadAttachment(){
attributes = new HashMap();
}
public int getMode() {
return mode;
}
public void setMode(int mode) {
this.mode = mode;
}
public void setAttribute(String key, Object value){
attributes.put(key,value);
}
public Object getAttribute(String key){
return attributes.get(key);
}
public Object removeAttribute(String key){
return attributes.remove(key);
}
public void setAttributes(Map attributes) {
this.attributes = attributes;
}
public Map getAttributes() {
return attributes;
}
/**
* Set the {@link ByteBuffer} shared this thread
*/
public void setByteBuffer(ByteBuffer byteBuffer){
this.byteBuffer = byteBuffer;
}
/**
* Return the {@link ByteBuffer} shared this thread
*/
public ByteBuffer getByteBuffer(){
return byteBuffer;
}
/**
* Return the encrypted {@link ByteBuffer} used to handle request.
* @return {@link ByteBuffer}
*/
public ByteBuffer getInputBB(){
return inputBB;
}
/**
* Set the encrypted {@link ByteBuffer} used to handle request.
* @param inputBB {@link ByteBuffer}
*/
public void setInputBB(ByteBuffer inputBB){
this.inputBB = inputBB;
}
/**
* Return the encrypted {@link ByteBuffer} used to handle response.
* @return {@link ByteBuffer}
*/
public ByteBuffer getOutputBB(){
return outputBB;
}
/**
* Set the encrypted {@link ByteBuffer} used to handle response.
* @param outputBB {@link ByteBuffer}
*/
public void setOutputBB(ByteBuffer outputBB){
this.outputBB = outputBB;
}
/**
* Set the{@link SSLEngine}.
* @return{@link SSLEngine}
*/
public SSLEngine getSSLEngine() {
return sslEngine;
}
/**
* Get the{@link SSLEngine}.
* @param sslEngine{@link SSLEngine}
*/
public void setSSLEngine(SSLEngine sslEngine) {
this.sslEngine = sslEngine;
}
/**
* Return the name of the Thread on which this instance is binded.
*/
public String getThreadId() {
return threadName;
}
/**
* Set the Thread's name on which this instance is binded.
*/
public void setThreadId(String threadName) {
this.threadName = threadName;
}
/**
* Associates ThreadAttachment with the current thread
*/
public void associate() {
if (!threadLock.isHeldByCurrentThread()) {
threadLock.lock();
}
}
/**
* Releases ThreadAttachment association with the current thread
*/
public void deassociate() {
if (threadLock.isHeldByCurrentThread()) {
threadLock.unlock();
activeThread = null;
}
}
/**
* SelectionKey attachment processing
* @param selectionKey
*/
public void process(SelectionKey selectionKey) {
((WorkerThread) Thread.currentThread()).attach(this);
}
/**
* SelectionKey attachment postProcessing
* @param selectionKey
*/
public void postProcess(SelectionKey selectionKey) {
((WorkerThread) Thread.currentThread()).detach();
}
public void reset() {
mode = Mode.ATTRIBUTES_ONLY;
byteBuffer = null;
sslEngine = null;
inputBB = null;
outputBB = null;
activeThreadTimeout = UNLIMITED_TIMEOUT;
}
@Override
public void release(SelectionKey selectionKey) {
attributes.clear();
reset();
deassociate();
super.release(selectionKey);
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder(256);
sb.append("ThreadAttachment[mode=").append(mode);
sb.append(", threadName=").append(threadName);
sb.append(", byteBuffer=").append(byteBuffer);
sb.append(", timeout=").append(getTimeout());
sb.append(", sslEngine=").append(sslEngine);
sb.append(", inputBB=").append(inputBB);
sb.append(", outputBB=").append(outputBB);
sb.append(", attributes=").append(attributes);
sb.append(']');
return sb.toString();
}
/**
* Return the current {@link Thread} which is executing this object.
* @return the current {@link Thread} which is executing this object.
*/
public Thread activeThread(){
return activeThread;
}
/**
* Set the time, in milliseconds, this object can be attached to a {@link Thread}
* @param the time, in milliseconds, this object can be attached to a {@link Thread}
*/
@Override
public void setIdleTimeoutDelay(long activeThreadTimeout) {
this.activeThreadTimeout = activeThreadTimeout;
activeThread= Thread.currentThread();
}
/**
* Return the time, in milliseconds, this object can be attached to a {@link Thread}
* @return the time, in milliseconds, this object can be attached to a {@link Thread}
*/
@Override
public long getIdleTimeoutDelay() {
return activeThreadTimeout;
}
}
