Main Page | Packages | Class Hierarchy | Class List | Directories | File List | Class Members | Related Pages

WebPageCacheManager.java

00001 /*
00002  * OpenMobileIS - a free Java(TM) Framework for mobile applications Java(TM)
00003  * Copyright (C) 2004-2005 Philippe Delrieu
00004  * All rights reserved.
00005  * Contact: openmobileis@e-care.fr
00006  *
00007  * This library is free software; you can redistribute it and/or
00008  * modify it under the terms of the GNU Lesser General Public
00009  * License as published by the Free Software Foundation; either
00010  * version 2.1 of the License, or any later version.
00011  *
00012  * This library is distributed in the hope that it will be useful,
00013  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00014  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00015  * Lesser General Public License for more details.
00016  *
00017  * You should have received a copy of the GNU Lesser General Public
00018  * License along with this library; if not, write to the Free Software
00019  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
00020  * USA
00021  *
00022  *  Author : Philippe Delrieu
00023  *  
00024  *  Modifications :
00025  *  2004 Creation P.Delrieu
00026  *  2004 Modified by Romain Beaugrand
00027  * 
00028  */
00029 package org.openmobileis.services.cache;
00030 
00031 import java.util.Hashtable;
00032 
00033 import javax.servlet.http.HttpServletRequest;
00034 
00035 import org.openmobileis.common.context.ApplicationContextManager;
00036 import org.openmobileis.common.util.collection.Array;
00037 import org.openmobileis.services.Service;
00038 
00056 public final class WebPageCacheManager {
00057         
00058         private static WebPageCacheManager manager;
00059         private Hashtable eventList;
00060         private Array serviceList;
00064         private WebPageCacheManager() {
00065                 super();
00066                 eventList = new Hashtable(5);
00067                 serviceList = new Array(10);
00068         }
00069         
00070         public static WebPageCacheManager getManager()  {
00071                 if (manager == null)    {
00072                         synchronized(WebPageCacheManager.class) {
00073                                 if (manager == null)    {
00074                                         manager = new WebPageCacheManager();
00075                                         ApplicationContextManager.getManager().addManager(manager);
00076                                 }
00077                         }
00078                 }
00079                 return manager;
00080         }
00081         
00082         public void registerService(WebPageCacheServiceStruct service, WebPageCacheEvent event) {
00083                 Array services = (Array)eventList.get(event);
00084                 if (services == null)   {
00085                         services = new Array(10);
00086                         eventList.put(event, services);
00087                 }
00088                 services.add(service);  
00089                 serviceList.add(service);       
00090         }
00091         
00092         public byte[] getCachedPage(HttpServletRequest req, Service service)    {
00093                 byte[] resp = null;
00094                 for(int i=0; i<serviceList.size();i++)  {
00095                         WebPageCacheServiceStruct serviceStruct = (WebPageCacheServiceStruct)serviceList.get(i);
00096                         if (serviceStruct.getService().equals(service)) {
00097                             resp = serviceStruct.getResponseForRequest(new Hashtable(req.getParameterMap()));
00098                                 // resp = serviceStruct.getResponseForRequest(((WebServerConnection)req).getParametersTable());
00099                         }
00100                 }
00101                 return resp;
00102         }
00103         
00104         public void setCachedPage(HttpServletRequest req, byte[] cachedData, Service service)   {
00105                 for(int i=0; i<serviceList.size();i++)  {
00106                         WebPageCacheServiceStruct serviceStruct = (WebPageCacheServiceStruct)serviceList.get(i);
00107                         if (serviceStruct.getService().equals(service)) {
00108                             serviceStruct.addWebPage(new Hashtable(req.getParameterMap()), cachedData);
00109                                 // serviceStruct.addWebPage((Hashtable)((WebServerConnection)req).getParametersTable().clone(), cachedData);
00110                         }
00111                 }
00112         }
00113         
00114         public void sendCacheEvent(WebPageCacheEvent event)     {
00115                 Array eventArray = (Array)eventList.get(event);
00116                 if (eventArray != null) {
00117                         for (int i=0; i<eventArray.size(); i++) {
00118                                 WebPageCacheServiceStruct struct = (WebPageCacheServiceStruct)eventArray.get(i);
00119                                 struct.notifyCacheEvent(event);
00120                         }
00121                 }
00122         }
00123 
00124 }

Generated on Wed Dec 14 21:05:35 2005 for OpenMobileIS by  doxygen 1.4.4