/*
* 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 Sam
*/
package com.caucho.server.rewrite;
import java.io.IOException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.caucho.server.http.HttpServletResponseImpl;
class ConditionFilterChain
implements FilterChain
{
private static final Logger log = Logger.getLogger(ConditionFilterChain.class.getName());
private final String _logPrefix;
private final String _uri;
private final String _targetUri;
private final FilterChain _failChain;
private final Condition []_conditions;
private final FilterChain _passChain;
private final boolean _isFiner;
private final boolean _isFinest;
public ConditionFilterChain(String logPrefix,
String uri,
String targetUri,
Condition []conditions,
FilterChain passChain,
FilterChain failChain)
{
assert conditions != null;
assert passChain != null;
assert failChain != null;
_logPrefix = logPrefix;
_uri = uri;
_targetUri = targetUri;
_conditions = conditions;
_passChain = passChain;
_failChain = failChain;
_isFiner = log.isLoggable(Level.FINER);
_isFinest = log.isLoggable(Level.FINEST);
}
public void doFilter(ServletRequest request, ServletResponse response)
throws ServletException, IOException
{
HttpServletRequest req = (HttpServletRequest) request;
HttpServletResponse res = (HttpServletResponse) response;
if (res instanceof HttpServletResponseImpl) {
HttpServletResponseImpl cRes = (HttpServletResponseImpl) res;
cRes.setNoCacheUnlessVary(true);
}
for (int i = 0; i < _conditions.length; i++) {
if (! _conditions[i].isMatch(req, res)) {
if (_isFiner)
log.finer(_logPrefix + " '" + _uri + "' --> '" + _targetUri + "'");
_failChain.doFilter(request, response);
return;
}
}
if (_isFiner)
log.finer(_logPrefix + " '" + _uri + "' --> '" + _targetUri + "'");
_passChain.doFilter(request, response);
}
}