/*
* $Header: /home/cvs/jakarta-commons-sandbox/jelly/src/java/org/apache/commons/jelly/impl/DynaTagScript.java,v 1.12 2002/08/13 08:04:38 jstrachan Exp $
* $Revision: 1.12 $
* $Date: 2002/08/13 08:04:38 $
*
* ====================================================================
*
* 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
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* 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/>.
*
* $Id: DynaTagScript.java,v 1.12 2002/08/13 08:04:38 jstrachan Exp $
*/
package org.apache.commons.jelly.impl;
import java.util.Iterator;
import java.util.Map;
import org.apache.commons.beanutils.ConvertingWrapDynaBean;
import org.apache.commons.beanutils.DynaBean;
import org.apache.commons.jelly.CompilableTag;
import org.apache.commons.jelly.JellyContext;
import org.apache.commons.jelly.JellyException;
import org.apache.commons.jelly.Script;
import org.apache.commons.jelly.Tag;
import org.apache.commons.jelly.DynaTag;
import org.apache.commons.jelly.DynaBeanTagSupport;
import org.apache.commons.jelly.XMLOutput;
import org.apache.commons.jelly.expression.Expression;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
/**
* <p><code>DynaTagScript</code> is a script evaluates a custom DynaTag.</p>
*
* @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
* @version $Revision: 1.12 $
*/
public class DynaTagScript extends TagScript {
/** The Log to which logging calls will be made. */
private static final Log log = LogFactory.getLog(DynaTagScript.class);
public DynaTagScript() {
}
public DynaTagScript(TagFactory tagFactory) {
super(tagFactory);
}
// Script interface
//-------------------------------------------------------------------------
/** Evaluates the body of a tag */
public void run(JellyContext context, XMLOutput output) throws Exception {
if ( ! context.isCacheTags() ) {
clearTag();
}
try {
Tag tag = getTag();
if ( tag == null ) {
return;
}
tag.setContext(context);
if ( tag instanceof DynaTag ) {
DynaTag dynaTag = (DynaTag) tag;
// ### probably compiling this to 2 arrays might be quicker and smaller
for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
Map.Entry entry = (Map.Entry) iter.next();
String name = (String) entry.getKey();
Expression expression = (Expression) entry.getValue();
Object value = expression.evaluate(context);
dynaTag.setAttribute(name, value);
}
}
else {
// treat the tag as a bean
DynaBean dynaBean = new ConvertingWrapDynaBean( tag );
for (Iterator iter = attributes.entrySet().iterator(); iter.hasNext();) {
Map.Entry entry = (Map.Entry) iter.next();
String name = (String) entry.getKey();
Expression expression = (Expression) entry.getValue();
Object value = expression.evaluate(context);
dynaBean.set(name, value);
}
}
tag.doTag(output);
}
catch (JellyException e) {
handleException(e);
}
catch (Exception e) {
handleException(e);
}
}
}