/*
* $Header: /home/cvs/jakarta-struts/src/share/org/apache/struts/taglib/EncodeRedirectURLTag.java,v 1.4 2000/08/01 20:03:31 craigmcc Exp $
* $Revision: 1.4 $
* $Date: 2000/08/01 20:03:31 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999 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", "Tomcat", 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.struts.taglib;
import java.io.IOException;
import java.lang.reflect.Method;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.JspWriter;
import javax.servlet.jsp.PageContext;
import javax.servlet.jsp.tagext.TagSupport;
import org.apache.struts.util.BeanUtils;
import org.apache.struts.util.MessageResources;
/**
* Custom tag implementation that acts like
* <code><jsp:getProperty></code> but encodes the output stream so that
* HTML-related characters do not cause difficulties.
*
* @author Craig R. McClanahan
* @version $Revision: 1.4 $ $Date: 2000/08/01 20:03:31 $
*/
public final class EncodeRedirectURLTag extends TagSupport {
// ------------------------------------------------------------ Construtors
/**
* Construct a new instance of this tag.
*/
public EncodeRedirectURLTag() {
super();
}
// ----------------------------------------------------- Instance Variables
/**
* The message resources for this package.
*/
private static MessageResources messages =
MessageResources.getMessageResources
("org.apache.struts.taglib.LocalStrings");
/**
* The URL to be encoded.
*/
private String url = null;
// ------------------------------------------------------------- Properties
/**
* Return the URL to be encoded.
*/
public String getUrl() {
return (this.url);
}
/**
* Set the URL to be encoded.
*
* @param url The new URL
*/
public void setUrl(String url) {
this.url = url;
}
// --------------------------------------------------------- Public Methods
/**
* Process the start tag.
*
* @exception JspException if a JSP exception has occurred
*/
public int doStartTag() throws JspException {
// Acquire the encoded URL to be generated
HttpServletResponse response =
(HttpServletResponse) pageContext.getResponse();
String encoded = response.encodeRedirectURL(url);
// Print this encoded value to our output writer
JspWriter writer = pageContext.getOut();
try {
writer.print(encoded);
} catch (IOException e) {
throw new JspException
(messages.getMessage("common.io", e.toString()));
}
// Continue processing this page
return (EVAL_BODY_INCLUDE);
}
/**
* Release any acquired resources.
*/
public void release() {
super.release();
this.url = null;
}
}