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Posted to dev@commons.apache.org by js...@apache.org on 2002/06/26 11:14:31 UTC
cvs commit: jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core ThreadTag.java CoreTagLibrary.java
jstrachan 2002/06/26 02:14:31
Modified: jelly/src/java/org/apache/commons/jelly/tags/core
CoreTagLibrary.java
Added: jelly/src/java/org/apache/commons/jelly/tags/core
ThreadTag.java
Log:
Added Vinay's <thread> tag which supports evaluating a block of Jelly script asynchronously in another thread.
Revision Changes Path
1.12 +6 -5 jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/CoreTagLibrary.java
Index: CoreTagLibrary.java
===================================================================
RCS file: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/CoreTagLibrary.java,v
retrieving revision 1.11
retrieving revision 1.12
diff -u -r1.11 -r1.12
--- CoreTagLibrary.java 13 Jun 2002 08:16:47 -0000 1.11
+++ CoreTagLibrary.java 26 Jun 2002 09:14:31 -0000 1.12
@@ -99,6 +99,7 @@
registerTag("expr", ExprTag.class);
registerTag("new", NewTag.class);
registerTag("whitespace", WhitespaceTag.class);
+ registerTag("thread", ThreadTag.class);
}
}
1.1 jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/tags/core/ThreadTag.java
Index: ThreadTag.java
===================================================================
/*
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2002 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Commons", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
* nor may "Apache" appear in their names without prior written
* permission of the Apache Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many
* individuals on behalf of the Apache Software Foundation. For more
* information on the Apache Software Foundation, please see
* <http://www.apache.org/>.
*/
package org.apache.commons.jelly.tags.core;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import org.apache.commons.jelly.MissingAttributeException;
import org.apache.commons.jelly.TagSupport;
import org.apache.commons.jelly.XMLOutput;
/** A tag that spwans the contained script in a separate thread
*
* @author <a href="mailto:vinayc@apache.org">Vinay Chandran</a>
*/
public class ThreadTag extends TagSupport
{
/** Thread Name */
private String name = null;
/** the destination of output */
private XMLOutput xmlOutput;
public ThreadTag()
{
}
// Tag interface
//-------------------------------------------------------------------------
public void doTag(final XMLOutput output) throws Exception {
if ( xmlOutput == null ) {
throw new MissingAttributeException("xmlOutput");
}
Thread thread = new Thread(
new Runnable() {
public void run() {
try {
invokeBody(xmlOutput);
xmlOutput.close();
}
catch (Exception e) {
e.printStackTrace();
}
}
}
);
if ( name != null ) {
thread.setName( name );
}
thread.start();
}
/**
* Sets the name of the thread.
* @param name The name to set
*/
public void setName(String name) {
this.name = name;
}
/**
* Sets the destination of output
*/
public void setXmlOutput(XMLOutput xmlOutput) {
this.xmlOutput = xmlOutput;
}
/**
* Set the file which is generated from the output
* @param name The output file name
*/
public void setFile(String name) throws IOException {
setXmlOutput( XMLOutput.createXMLOutput(new FileOutputStream(name)) );
}
}
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