/*
* 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.ArrayList;
import javax.servlet.DispatcherType;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import com.caucho.config.ConfigException;
import com.caucho.config.Configurable;
/**
* Filter container which matches URLs and conditions and contains child
* actions.
*
* <pre>
* <web-app xmlns="http://caucho.com/ns/resin"
* xmlns:resin="urn:java:com.caucho.resin">
*
* <resin:Location regexp="^/admin">
* <resin:IfSecure/>
* <resin:SetHeader name="Foo" value="bar"/>
* </resin:Location>
*
* </web-app>
* </pre>
*/
@Configurable
public class Location extends AbstractRegexpDispatchRule
{
private ArrayList<DispatchRule> _ruleList
= new ArrayList<DispatchRule>();
private DispatchRule []_rules = new DispatchRule[0];
/**
* Adds a child dispatch rule
*/
public void add(DispatchRule rule)
{
_ruleList.add(rule);
_rules = new DispatchRule[_ruleList.size()];
_ruleList.toArray(_rules);
}
@Override
public FilterChain map(DispatcherType type,
String uri,
String queryString,
FilterChain next,
FilterChain tail)
throws ServletException
{
return super.map(type, uri, queryString, next, next);
}
@Override
protected FilterChain createDispatch(DispatcherType type,
String uri,
String queryString,
String target,
FilterChain next)
{
return mapChain(0, type, uri, queryString, next);
}
private FilterChain mapChain(int index,
DispatcherType type,
String uri, String queryString,
FilterChain chain)
{
try {
if (_rules.length <= index)
return chain;
DispatchRule rule = _rules[index];
uri = rule.rewriteUri(uri, queryString);
FilterChain next = mapChain(index + 1, type, uri, queryString, chain);
return rule.map(type, uri, queryString, next, chain);
} catch (ServletException e) {
throw ConfigException.create(e);
}
}
}