/*
* Copyright (c) 1998-2011 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.rewrite;
import java.util.regex.Matcher;
import javax.servlet.DispatcherType;
import javax.servlet.FilterChain;
import com.caucho.config.ConfigException;
import com.caucho.config.Configurable;
import com.caucho.server.dispatch.ForwardAbsoluteFilterChain;
import com.caucho.server.dispatch.ForwardFilterChain;
import com.caucho.server.webapp.WebApp;
import com.caucho.util.L10N;
/**
* Forwards a requests using the servlet RequestDispatcher.forward call
* protocol.
*
* <pre>
* <web-app xmlns:resin="urn:java:com.caucho.resin">
*
* <resin:Forward regexp="^/foo" target="/bar"/>
*
* </web-app>
* </pre>
*/
@Configurable
public class Forward extends AbstractRegexpDispatchRule
{
private static final L10N L = new L10N(Forward.class);
private String _target;
private boolean _isAbsolute;
@Configurable
public void setTarget(String target)
{
_target = target;
}
@Configurable
public void setAbsoluteTarget(String target)
{
setTarget(target);
_isAbsolute = true;
}
@Configurable
public void setTargetHost(String target)
{
}
@Override
protected String rewriteTarget(Matcher matcher,
String uri,
String queryString)
{
// server/1kna
queryString = null;
if (_target != null)
uri = matcher.replaceAll(_target);
return super.rewriteTarget(matcher, uri, queryString);
}
// @Override
public void init()
throws ConfigException
{
// super.init();
if (_target == null) {
throw new ConfigException(L.l("'target' is a required attribute of '{0}' because Resin needs to know the destination URL.",
getClass().getSimpleName()));
}
/*
if (getRegexp() == null && getFullUrlRegexp() == null)
setRegexp(ALL_PATTERN);
*/
}
@Override
public FilterChain createDispatch(DispatcherType type,
String uri,
String queryString,
String target,
FilterChain next)
{
if (_isAbsolute)
return new ForwardAbsoluteFilterChain(target, WebApp.getCurrent());
else
return new ForwardFilterChain(target);
}
}