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 * or glassfish/bootstrap/legal/LICENSE.txt.  See the License for the specific
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 * When distributing the software, include this License Header Notice in each
 * file and include the License file at glassfish/bootstrap/legal/LICENSE.txt.
 * Sun designates this particular file as subject to the "Classpath" exception
 * as provided by Sun in the GPL Version 2 section of the License file that
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 */

/*
 * HASessionStoreValve.java
 *
 * Created on June 27, 2002, 6:42 PM
 */

package com.sun.enterprise.ee.web.sessmgmt;

import java.util.HashMap;
import java.util.logging.Logger;
import com.sun.logging.LogDomains;
import java.util.logging.Level;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;
import org.apache.catalina.valves.ValveBase;
import org.apache.catalina.Context;
import org.apache.catalina.Globals;
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.core.StandardContext;

/**
 *
 * @author  lwhite
 */
public class HASessionStoreValve extends ValveBase {
    
    /**
     * The logger to use for logging ALL web container related messages.
     */
    private static final Logger _logger 
        = LogDomains.getLogger(LogDomains.WEB_LOGGER);     
    
    /** Creates a new instance of HASessionStoreValve */
    public HASessionStoreValve() {
        super();           
    }

    /**
     * invoke call-back; nothing to do on the way in
     * @param request
     * @param response
     */    
    public int invoke(org.apache.catalina.Request request, org.apache.catalina.Response response) throws java.io.IOException, javax.servlet.ServletException {
        //FIXME this is for 7.0PE style valves
        //left here if the same optimization is done to the valve architecture
        return INVOKE_NEXT; 
        // return 0;
    }
    
    /**
     * A post-request processing implementation that does the valveSave.
     * @param request
     * @param response
     */
    public void postInvoke(Request request, Response response)
        throws IOException, ServletException {
        //FIXME this is for 7.0PE style valves
        //left here if the same optimization is done to the valve architecture            
        doPostInvoke(request, response);
    }
    
    /**
     * invoke call-back; nothing to do on the way in
     * @param request
     * @param response
     */    
    public void invoke(org.apache.catalina.Request request, org.apache.catalina.Response response, ValveContext ctx) throws java.io.IOException, javax.servlet.ServletException {
        try {
            //this is on the way "in"
            ctx.invokeNext(request, response);
            //this is on the way "out"
	} catch (Exception ex) {   //IO or ServletException
	} finally {
            //this is on the way "out" too
            doPostInvoke(request, response);
	}
        
    }
    
    
    /**
     * A post-request processing implementation that does the valveSave.
     * @param request
     * @param response
     */
    private void doPostInvoke(Request request, Response response)
        throws IOException, ServletException {
        if(_logger.isLoggable(Level.FINEST)) {
            _logger.finest("IN HASessionStoreValve>>postInvoke()");
        }
        String sessionId = null;
        Session session = null;
        Context context = null;
        Manager manager = null;
        HttpServletRequest hreq = 
            (HttpServletRequest) request.getRequest();
        HttpSession hsess = hreq.getSession(false);
        if (hsess != null) {
            sessionId = hsess.getId();
            if(_logger.isLoggable(Level.FINEST)) {
                _logger.finest("IN HASessionStoreValve:postInvoke:sessionId=" + sessionId);
            }
        }
        if (sessionId != null) {
            context = request.getContext();
            manager = context.getManager();
            session = manager.findSession(sessionId);
            if(_logger.isLoggable(Level.FINEST)) {
                _logger.finest("IN HASessionStoreValve:postInvoke:session=" + session);
            }
            if (session != null) {
                WebEventPersistentManager pMgr = 
                    (WebEventPersistentManager) manager;
                pMgr.doValveSave(session);
                ((StandardContext) context).saveUnitOfWork(session);
            }
        }
    }    
    
}
