/*
* The contents of this file are subject to the terms
* of the Common Development and Distribution License
* (the "License"). You may not use this file except
* in compliance with the License.
*
* You can obtain a copy of the license at
* glassfish/bootstrap/legal/CDDLv1.0.txt or
* https://glassfish.dev.java.net/public/CDDLv1.0.html.
* See the License for the specific language governing
* permissions and limitations under the License.
*
* When distributing Covered Code, include this CDDL
* HEADER in each file and include the License file at
* glassfish/bootstrap/legal/CDDLv1.0.txt. If applicable,
* add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your
* own identifying information: Portions Copyright [yyyy]
* [name of copyright owner]
*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
*
* Portions Copyright Apache Software Foundation.
*/
package org.apache.taglibs.standard.tag.common.xml;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspTagException;
import javax.servlet.jsp.tagext.BodyTagSupport;
import javax.servlet.jsp.tagext.Tag;
import org.apache.taglibs.standard.resources.Resources;
/**
* <p>Support for tag handlers for <param>, the XML parameter
* subtag for <transformt<.</p>
*
* @see TransformSupport
* @author Shawn Bayern
*/
public abstract class ParamSupport extends BodyTagSupport {
//*********************************************************************
// Protected state
protected String name; // 'name' attribute
protected Object value; // 'value' attribute
//*********************************************************************
// Constructor and initialization
public ParamSupport() {
super();
init();
}
private void init() {
name = null;
value = null;
}
//*********************************************************************
// Tag logic
// simply send our name and value to our parent <transform> tag
public int doEndTag() throws JspException {
Tag t = findAncestorWithClass(this, TransformSupport.class);
if (t == null)
throw new JspTagException(
Resources.getMessage("PARAM_OUTSIDE_TRANSFORM"));
TransformSupport parent = (TransformSupport) t;
Object value = this.value;
if (value == null) {
if (bodyContent == null || bodyContent.getString() == null)
value = "";
else
value = bodyContent.getString().trim();
}
parent.addParameter(name, value);
return EVAL_PAGE;
}
// Releases any resources we may have (or inherit)
public void release() {
init();
}
}