/* ===============================================================================
*
* Part of the InfoGlue Content Management Platform (www.infoglue.org)
*
* ===============================================================================
*
* Copyright (C)
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2, as published by the
* Free Software Foundation. See the file LICENSE.html for more information.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY, including the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
* Place, Suite 330 / Boston, MA 02111-1307 / USA.
*
* ===============================================================================
*/
package org.infoglue.cms.applications.common.actions;
import java.util.StringTokenizer;
import org.infoglue.cms.exception.ConfigurationError;
import webwork.util.ServletValueStack;
/**
*
* @author Mattias Bogeblad
*/
public class ExtendedRedirect extends InfoGlueAbstractAction
{
private static final long serialVersionUID = -8254805372363786462L;
private static final String UNPARSED_PARAMETER_DELIMITER = "#";
private String unparsedURL;
/**
*
*/
public void setUrl(String unparsedURL)
{
this.unparsedURL = unparsedURL;
}
/**
*
*/
public String doExecute() throws Exception
{
validateUnparsedURL();
redirect();
return NONE;
}
/**
*
*/
private void validateUnparsedURL()
{
if (this.unparsedURL == null || this.unparsedURL.trim().length() == 0)
{
throw new ConfigurationError("No url/empty url specified for ExtendedRedirect.action");
}
}
/**
*
*/
private void redirect() throws Exception
{
final String url = getResponse().encodeRedirectURL(parse(this.unparsedURL));
getResponse().sendRedirect(url);
}
/**
*
*/
private String parse(String unparsedURL)
{
final StringTokenizer st = new StringTokenizer(unparsedURL.trim(), UNPARSED_PARAMETER_DELIMITER);
final StringBuffer sb = new StringBuffer(st.nextToken()); // action
sb.append(st.hasMoreTokens() ? "?" : "");
while (st.hasMoreTokens())
{
sb.append(createParameterString(st.nextToken()));
sb.append(st.hasMoreTokens() ? "&" : "");
}
return sb.toString();
}
/**
*
*/
private String createParameterString(String name)
{
return name + "=" + getValueFromCallingAction(name);
}
/**
*
*/
private String getValueFromCallingAction(String fieldName)
{
Object value = ServletValueStack.getStack(getRequest()).findValue(fieldName);
//Object value = ValueStack.getStack(getRequest()).findValue(fieldName);
if (value==null)
value = getRequest().getParameter(fieldName);
if (value == null)
{
throw new ConfigurationError("Unable to find the value for the parameter [" + fieldName + "].");
}
return value.toString();
}
}