/*
* 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.server.dispatch;
import com.caucho.server.webapp.WebApp;
import com.caucho.server.session.SessionManager;
import com.caucho.server.http.HttpServletRequestImpl;
import com.caucho.util.L10N;
import com.caucho.util.Alarm;
import com.caucho.vfs.Dependency;
import java.util.logging.Logger;
/**
* A repository for request information gleaned from the uri.
*/
public class VersionInvocation extends Invocation
{
static final L10N L = new L10N(Invocation.class);
private static final Logger log
= Logger.getLogger(Invocation.class.getName());
private final Invocation _invocation;
private final WebApp _webApp;
private final Invocation _oldInvocation;
private final WebApp _oldWebApp;
private final long _expireTime;
public VersionInvocation(Invocation invocation, WebApp webApp,
Invocation oldInvocation, WebApp oldWebApp,
long expireTime)
{
_invocation = invocation;
_webApp = webApp;
setWebApp(webApp);
_oldInvocation = oldInvocation;
_oldWebApp = oldWebApp;
_expireTime = expireTime;
}
/**
* Returns true if the invocation has been modified. Generally only
* true if the webApp has been modified.
*/
@Override
public boolean isModified()
{
long now = Alarm.getCurrentTime();
if (_expireTime < now)
return true;
else
return _invocation.isModified() || _oldInvocation.isModified();
}
/**
* Log the reason for modification.
*/
@Override
public boolean logModified(Logger log)
{
long now = Alarm.getCurrentTime();
if (_expireTime < now) {
log.info(L.l("{0}: versioning rollover complete.", _webApp));
return true;
}
else
return _invocation.logModified(log) || _oldInvocation.logModified(log);
}
/**
* Returns the versioned invocation based on this request.
*
* @param request the servlet request
*/
@Override
public Invocation getRequestInvocation(HttpServletRequestImpl request)
{
if (_expireTime < Alarm.getCurrentTime()) {
return _invocation;
}
request.setInvocation(this);
String sessionId = request.getRequestedSessionId();
if (sessionId == null)
sessionId = _invocation.getSessionId();
if (sessionId == null)
return _invocation;
SessionManager oldSessionManager = _oldWebApp.getSessionManager();
if (oldSessionManager != null
&& oldSessionManager.containsSession(sessionId)) {
return _oldInvocation;
}
else {
return _invocation;
}
}
/**
* Returns the invocation's hash code.
*/
public int hashCode()
{
return _invocation.hashCode();
}
/**
* Checks for equality
*/
public boolean equals(Object o)
{
return _invocation.equals(o);
}
}