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Glassfish example source code file (ThreadWithAttributes.java)
The Glassfish ThreadWithAttributes.java source code/* * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. * * Copyright (c) 1997-2010 Oracle and/or its affiliates. All rights reserved. * * The contents of this file are subject to the terms of either the GNU * 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_1_1.html * or packager/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 packager/legal/LICENSE.txt. * * GPL Classpath Exception: * Oracle designates this particular file as subject to the "Classpath" * exception as provided by Oracle in the GPL Version 2 section of the License * file that accompanied this code. * * Modifications: * If applicable, add the following below the License Header, with the fields * enclosed by brackets [] replaced by your own identifying information: * "Portions Copyright [year] [name of copyright owner]" * * Contributor(s): * If you wish your version of this file to be governed by only the CDDL or * only the GPL Version 2, indicate your decision by adding "[Contributor] * elects to include this software in this distribution under the [CDDL or GPL * Version 2] license." If you don't indicate a single choice of license, a * recipient has the option to distribute your version of this file under * either the CDDL, the GPL Version 2 or to extend the choice of license to * its licensees as provided above. However, if you add GPL Version 2 code * and therefore, elected the GPL Version 2 license, then the option applies * only if the new code is made subject to such option by the copyright * holder. * * * This file incorporates work covered by the following copyright and * permission notice: * * Copyright 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 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.tomcat.util.threads; import java.util.Hashtable; /** Special thread that allows storing of attributes and notes. * A guard is used to prevent untrusted code from accessing the * attributes. * * This avoids hash lookups and provide something very similar * with ThreadLocal ( but compatible with JDK1.1 and faster on * JDK < 1.4 ). * * The main use is to store 'state' for monitoring ( like "processing * request 'GET /' "). */ public class ThreadWithAttributes extends Thread { private Object control; public static final int MAX_NOTES=16; private Object notes[]=new Object[MAX_NOTES]; private Hashtable attributes=new Hashtable(); private String currentStage; private Object param; private Object thData[]; public ThreadWithAttributes(Object control, Runnable r) { super(r); this.control=control; } public final Object[] getThreadData(Object control ) { return thData; } public final void setThreadData(Object control, Object thData[] ) { this.thData=thData; } /** Notes - for attributes that need fast access ( array ) * The application is responsible for id management */ public final void setNote( Object control, int id, Object value ) { if( this.control != control ) return; notes[id]=value; } /** Information about the curent performed operation */ public final String getCurrentStage(Object control) { if( this.control != control ) return null; return currentStage; } /** Information about the current request ( or the main object * we are processing ) */ public final Object getParam(Object control) { if( this.control != control ) return null; return param; } public final void setCurrentStage(Object control, String currentStage) { if( this.control != control ) return; this.currentStage = currentStage; } public final void setParam( Object control, Object param ) { if( this.control != control ) return; this.param=param; } public final Object getNote(Object control, int id ) { if( this.control != control ) return null; return notes[id]; } /** Generic attributes. You'll need a hashtable lookup - * you can use notes for array access. */ public final Hashtable getAttributes(Object control) { return attributes; } } Other Glassfish examples (source code examples)Here is a short list of links related to this Glassfish ThreadWithAttributes.java source code file: |
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