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1 /* 2 * 3 * ==================================================================== 4 * 5 * The Apache Software License, Version 1.1 6 * 7 * Copyright (c) 1999-2002 The Apache Software Foundation. All rights 8 * reserved. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in 19 * the documentation and/or other materials provided with the 20 * distribution. 21 * 22 * 3. The end-user documentation included with the redistribution, if 23 * any, must include the following acknowlegement: 24 * "This product includes software developed by the 25 * Apache Software Foundation (http://www.apache.org/)." 26 * Alternately, this acknowlegement may appear in the software itself, 27 * if and wherever such third-party acknowlegements normally appear. 28 * 29 * 4. The names "The Jakarta Project", "Commons", and "Apache Software 30 * Foundation" must not be used to endorse or promote products derived 31 * from this software without prior written permission. For written 32 * permission, please contact apache@apache.org. 33 * 34 * 5. Products derived from this software may not be called "Apache" 35 * nor may "Apache" appear in their names without prior written 36 * permission of the Apache Group. 37 * 38 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED 39 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 40 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 41 * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR 42 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 43 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 44 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF 45 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND 46 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 47 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 48 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 49 * SUCH DAMAGE. 50 * ==================================================================== 51 * 52 * This software consists of voluntary contributions made by many 53 * individuals on behalf of the Apache Software Foundation. For more 54 * information on the Apache Software Foundation, please see 55 * <http://www.apache.org/>;. 56 */ 57 package org.apache.commons.jelly.tags.core; 58 59 import java.io.FileOutputStream; 60 import java.io.FileWriter; 61 import java.io.IOException; 62 63 import org.apache.commons.jelly.MissingAttributeException; 64 import org.apache.commons.jelly.TagSupport; 65 import org.apache.commons.jelly.XMLOutput; 66 67 /*** A tag that spwans the contained script in a separate thread 68 * 69 * @author <a href="mailto:vinayc@apache.org">Vinay Chandran</a> 70 */ 71 public class ThreadTag extends TagSupport 72 { 73 /*** Thread Name */ 74 private String name = null; 75 /*** the destination of output */ 76 private XMLOutput xmlOutput; 77 78 79 public ThreadTag() 80 { 81 } 82 83 // Tag interface 84 //------------------------------------------------------------------------- 85 public void doTag(final XMLOutput output) throws Exception { 86 if ( xmlOutput == null ) { 87 throw new MissingAttributeException("xmlOutput"); 88 } 89 90 Thread thread = new Thread( 91 new Runnable() { 92 public void run() { 93 try { 94 invokeBody(xmlOutput); 95 xmlOutput.close(); 96 } 97 catch (Exception e) { 98 e.printStackTrace(); 99 } 100 } 101 } 102 ); 103 if ( name != null ) { 104 thread.setName( name ); 105 } 106 thread.start(); 107 } 108 109 /*** 110 * Sets the name of the thread. 111 * @param name The name to set 112 */ 113 public void setName(String name) { 114 this.name = name; 115 } 116 117 /*** 118 * Sets the destination of output 119 */ 120 public void setXmlOutput(XMLOutput xmlOutput) { 121 this.xmlOutput = xmlOutput; 122 } 123 124 /*** 125 * Set the file which is generated from the output 126 * @param name The output file name 127 */ 128 public void setFile(String name) throws IOException { 129 setXmlOutput( XMLOutput.createXMLOutput(new FileOutputStream(name)) ); 130 } 131 }

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