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Java > Open Source Codes > org > nemesis > forum > webapp > admin > action > CacheAction


1 package org.nemesis.forum.webapp.admin.action;
2
3 import java.util.ArrayList JavaDoc;
4 import java.util.List JavaDoc;
5
6 import javax.servlet.http.HttpServletRequest JavaDoc;
7 import javax.servlet.http.HttpServletResponse JavaDoc;
8
9 import org.apache.commons.logging.Log;
10 import org.apache.commons.logging.LogFactory;
11 import org.apache.struts.action.ActionError;
12 import org.apache.struts.action.ActionErrors;
13 import org.apache.struts.action.ActionForm;
14 import org.apache.struts.action.ActionForward;
15 import org.apache.struts.action.ActionMapping;
16 import org.nemesis.forum.ForumFactory;
17 import org.nemesis.forum.impl.DbCacheManager;
18 import org.nemesis.forum.impl.DbForumFactory;
19 import org.nemesis.forum.proxy.ForumFactoryProxy;
20 import org.nemesis.forum.util.cache.Cache;
21 import org.nemesis.forum.webapp.admin.bean.CacheBean;
22
23
24
25 public class CacheAction extends BaseAction {
26
27     static protected Log log =LogFactory.getLog(CacheAction.class);
28     static private int[] ctes = {DbCacheManager.MESSAGE_CACHE,DbCacheManager.THREAD_CACHE,DbCacheManager.FORUM_CACHE,DbCacheManager.USER_CACHE,DbCacheManager.GROUP_CACHE};
29     
30     
31     public ActionForward execute(ActionMapping mapping,
32                  ActionForm form,
33                  HttpServletRequest JavaDoc request,
34                  HttpServletResponse JavaDoc response)
35     throws Exception JavaDoc {
36
37         //check logon
38 checkUser(request);
39         //check permission
40 checkPermission(request,OperationConstants.MANAGE_CACHE);
41         
42         ActionErrors errors = new ActionErrors();
43         
44         try {
45                 ForumFactory forumFactory = ForumFactory.getInstance(getAuthToken(request));
46                 DbForumFactory dbForumFactory = null;
47                 dbForumFactory = (DbForumFactory)((ForumFactoryProxy)forumFactory).getUnderlyingForumFactory();
48                 DbCacheManager cacheManager = dbForumFactory.getCacheManager();
49     
50                 //action
51 if(request.getParameter("switchcache")!=null){
52                     cacheManager.setCacheEnabled(!cacheManager.isCacheEnabled());
53                 }
54                 if(request.getParameter("clean")!=null){
55                     try {
56                         cacheManager.clear(Integer.parseInt(request.getParameter("clean")));
57                     } catch (Exception JavaDoc e) {
58                     }
59                 }
60                 if(request.getParameter("newSize")!=null){
61                     try {
62                         Cache cache = cacheManager.getCache(Integer.parseInt(request.getParameter("oid")));
63                         cache.setMaxSize(Integer.parseInt(request.getParameter("newSize"))*1024);
64                     } catch (Exception JavaDoc e) {
65                     }
66                 }
67                 
68                 //init
69
70                 List JavaDoc mcos =new ArrayList JavaDoc(5);
71                 for(int i =0;i<ctes.length;i++){
72                     mcos.add(new CacheBean(ctes[i], "cache.memory.ctes."+(i+1),cacheManager.getCache(ctes[i])));
73                 }
74                 request.setAttribute("mcos",mcos);
75                 request.setAttribute("isCacheEnabled",new Boolean JavaDoc(cacheManager.isCacheEnabled()));
76                 
77         } catch (Exception JavaDoc e) {
78             String JavaDoc eid=this.getClass().getName()+"_"+System.currentTimeMillis();
79             log.error("eid:"+eid +"\nsessionID" +request.getSession().getId(),e) ;
80             errors.add("general", new ActionError("error.general","error id:"+eid));
81         }
82         
83         saveErrors(request, errors);
84
85         return mapping.findForward("view");
86     }
87     
88 }
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