/*
* $Header: /home/cvs/jakarta-tomcat-catalina/catalina/src/share/org/apache/catalina/core/StandardHostValve.java,v 1.3 2003/04/05 03:57:58 costin Exp $
* $Revision: 1.3 $
* $Date: 2003/04/05 03:57:58 $
*
* ====================================================================
*
* The Apache Software License, Version 1.1
*
* Copyright (c) 1999-2001 The Apache Software Foundation. All rights
* reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. The end-user documentation included with the redistribution, if
* any, must include the following acknowlegement:
* "This product includes software developed by the
* Apache Software Foundation (http://www.apache.org/)."
* Alternately, this acknowlegement may appear in the software itself,
* if and wherever such third-party acknowlegements normally appear.
*
* 4. The names "The Jakarta Project", "Tomcat", and "Apache Software
* Foundation" must not be used to endorse or promote products derived
* from this software without prior written permission. For written
* permission, please contact apache@apache.org.
*
* 5. Products derived from this software may not be called "Apache"
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* [Additional notices, if required by prior licensing conditions]
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*/
package org.apache.catalina.core;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.catalina.Container;
import org.apache.catalina.Context;
import org.apache.catalina.Manager;
import org.apache.catalina.Request;
import org.apache.catalina.Response;
import org.apache.catalina.Session;
import org.apache.catalina.ValveContext;
import org.apache.catalina.util.StringManager;
import org.apache.catalina.valves.ValveBase;
/**
* Valve that implements the default basic behavior for the
* <code>StandardHost</code> container implementation.
* <p>
* <b>USAGE CONSTRAINT</b>: This implementation is likely to be useful only
* when processing HTTP requests.
*
* @author Craig R. McClanahan
* @version $Revision: 1.3 $ $Date: 2003/04/05 03:57:58 $
*/
final class StandardHostValve
extends ValveBase {
// ----------------------------------------------------- Instance Variables
/**
* The descriptive information related to this implementation.
*/
private static final String info =
"org.apache.catalina.core.StandardHostValve/1.0";
/**
* The string manager for this package.
*/
private static final StringManager sm =
StringManager.getManager(Constants.Package);
// ------------------------------------------------------------- Properties
/**
* Return descriptive information about this Valve implementation.
*/
public String getInfo() {
return (info);
}
// --------------------------------------------------------- Public Methods
/**
* Select the appropriate child Context to process this request,
* based on the specified request URI. If no matching Context can
* be found, return an appropriate HTTP error.
*
* @param request Request to be processed
* @param response Response to be produced
* @param valveContext Valve context used to forward to the next Valve
*
* @exception IOException if an input/output error occurred
* @exception ServletException if a servlet error occurred
*/
public void invoke(Request request, Response response,
ValveContext valveContext)
throws IOException, ServletException {
// Validate the request and response object types
// XXX This should move to Engine ( the entry point )
// will it be skiped if the mapper maps the valve ?
if (!(request.getRequest() instanceof HttpServletRequest) ||
!(response.getResponse() instanceof HttpServletResponse)) {
return; // NOTE - Not much else we can do generically
}
// Select the Context to be used for this Request
StandardHost host = (StandardHost) getContainer();
Context context = (Context) host.map(request, true);
if (context == null) {
((HttpServletResponse) response.getResponse()).sendError
(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
sm.getString("standardHost.noContext"));
return;
}
// Bind the context CL to the current thread
if( context.getLoader() != null ) {
// Not started - it should check for availability first
// This should eventually move to Engine, it's generic.
Thread.currentThread().setContextClassLoader
(context.getLoader().getClassLoader());
}
// Update the session last access time for our session (if any)
HttpServletRequest hreq = (HttpServletRequest) request.getRequest();
String sessionId = hreq.getRequestedSessionId();
if (sessionId != null) {
Manager manager = context.getManager();
if (manager != null) {
Session session = manager.findSession(sessionId);
if (session != null)
session.access();
}
}
// Ask this Context to process this request
context.invoke(request, response);
}
}