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• WorkContextHandler.java

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/*
* Fabric3
* Copyright (c) 2009 Metaform Systems
*
* Fabric3 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 3 of
* the License, or (at your option) any later version, with the
* following exception:
*
* Linking this software statically or dynamically with other
* modules is making a combined work based on this software.
* Thus, the terms and conditions of the GNU General Public
* License cover the whole combination.
*
* As a special exception, the copyright holders of this software
* give you permission to link this software with independent
* modules to produce an executable, regardless of the license
* terms of these independent modules, and to copy and distribute
* the resulting executable under terms of your choice, provided
* that you also meet, for each linked independent module, the
* terms and conditions of the license of that module. An
* independent module is a module which is not derived from or
* based on this software. If you modify this software, you may
* extend this exception to your version of the software, but
* you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version.
*
* Fabric3 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.
* See the GNU General Public License for more details.
*
* You should have received a copy of the
* GNU General Public License along with Fabric3.
* If not, see .
*/
package org.fabric3.container.web.jetty;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.mortbay.jetty.handler.HandlerWrapper;

import org.fabric3.container.web.spi.WebRequestTunnel;
import org.fabric3.spi.invocation.CallFrame;
import org.fabric3.spi.invocation.WorkContext;
import org.fabric3.spi.invocation.WorkContextTunnel;

/**
 * Processes incoming requests for the web application context, adding a WorkContext to the thread so it is associated to user code in the web app.
 *
 * @version $Rev: 7148 $ $Date: 2009-06-15 02:18:27 +0200 (Mon, 15 Jun 2009) $
 */
public class WorkContextHandler extends HandlerWrapper {
    public void handle(String target, HttpServletRequest request, HttpServletResponse response, int dispatch) throws IOException, ServletException {
        WorkContext oldContext = null;
        try {
            WorkContext workContext = new WorkContext();
            CallFrame frame = new CallFrame();
            workContext.addCallFrame(frame);
            oldContext = WorkContextTunnel.setThreadWorkContext(workContext);
            WebRequestTunnel.setRequest(request);
            super.handle(target, request, response, dispatch);
        } finally {
            WorkContextTunnel.setThreadWorkContext(oldContext);
            WebRequestTunnel.setRequest(null);
        }
    }
}