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Java > Open Source Codes > org > jmanage > webui > actions > config > SaveApplicationClusterAction


1 /**
2  * Copyright 2004-2005 jManage.org
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */

16 package org.jmanage.webui.actions.config;
17
18 import org.jmanage.webui.actions.BaseAction;
19 import org.jmanage.webui.util.WebContext;
20 import org.jmanage.webui.util.Forwards;
21 import org.jmanage.webui.forms.ApplicationClusterForm;
22 import org.jmanage.core.config.ApplicationConfig;
23 import org.jmanage.core.config.ApplicationConfigManager;
24 import org.jmanage.core.config.ApplicationClusterConfig;
25 import org.jmanage.core.util.UserActivityLogger;
26 import org.jmanage.core.services.AccessController;
27 import org.jmanage.util.StringUtils;
28 import org.apache.struts.action.ActionForward;
29 import org.apache.struts.action.ActionMapping;
30 import org.apache.struts.action.ActionForm;
31
32 import javax.servlet.http.HttpServletRequest JavaDoc;
33 import javax.servlet.http.HttpServletResponse JavaDoc;
34 import java.util.List JavaDoc;
35 import java.util.LinkedList JavaDoc;
36 import java.util.Iterator JavaDoc;
37
38 /**
39  *
40  * date: Oct 17, 2004
41  * @author Rakesh Kalra
42  */

43 public class SaveApplicationClusterAction extends BaseAction {
44
45     /* todo: add and update operations should be moved to ApplicationConfigManager
46         and should be synchronized */

47     public ActionForward execute(WebContext context,
48                                  ActionMapping mapping,
49                                  ActionForm actionForm,
50                                  HttpServletRequest JavaDoc request,
51                                  HttpServletResponse JavaDoc response)
52             throws Exception JavaDoc {
53         AccessController.checkAccess(context.getServiceContext(), ACL_ADD_APPLICATIONS);
54         ApplicationClusterForm clusterForm = (ApplicationClusterForm)actionForm;
55         String JavaDoc[] childAppIds =
56                 StringUtils.csvToStringArray(clusterForm.getSelectedChildApplications());
57         /* build list of new child applications */
58         List JavaDoc newChildApplications = getNewChildApplications(childAppIds);
59
60         String JavaDoc applicationId = clusterForm.getApplicationId();
61         if(applicationId != null){
62             /* update existing application */
63             ApplicationClusterConfig clusterConfig =
64                     (ApplicationClusterConfig)
65                     ApplicationConfigManager.getApplicationConfig(applicationId);
66             assert clusterConfig != null;
67             clusterConfig.setName(clusterForm.getName());
68             final List JavaDoc oldChildApplications = clusterConfig.getApplications();
69             /* add applications outside the cluster
70             (applications that are no longer in the cluster) */

71             for(Iterator JavaDoc it=oldChildApplications.iterator();it.hasNext();){
72                 ApplicationConfig appConfig = (ApplicationConfig)it.next();
73                 if(!newChildApplications.contains(appConfig)){
74                     ApplicationConfigManager.addApplication(appConfig);
75                     appConfig.setClusterConfig(null);
76                 }
77             }
78             /* remove applications outside the cluster
79             (applications that are now part of cluster) */

80             for(Iterator JavaDoc it=newChildApplications.iterator();it.hasNext();){
81                 ApplicationConfig appConfig = (ApplicationConfig)it.next();
82                 if(!oldChildApplications.contains(appConfig)){
83                     ApplicationConfigManager.deleteApplication(appConfig);
84                     appConfig.setClusterConfig(clusterConfig);
85                 }
86             }
87             clusterConfig.setApplications(newChildApplications);
88             ApplicationConfigManager.updateApplication(clusterConfig);
89
90             UserActivityLogger.getInstance().logActivity(
91                 context.getUser().getUsername(),
92                 "Updated application cluster "+ "\""+clusterConfig.getName()+"\"");
93
94         }else{
95             /* add new application cluster */
96             ApplicationClusterConfig clusterConfig =
97                     new ApplicationClusterConfig(
98                             ApplicationConfig.getNextApplicationId(),
99                             clusterForm.getName());
100             for(Iterator JavaDoc it=newChildApplications.iterator();it.hasNext();){
101                 ApplicationConfig appConfig = (ApplicationConfig)it.next();
102                 appConfig.setClusterConfig(clusterConfig);
103                 ApplicationConfigManager.deleteApplication(appConfig);
104             }
105             clusterConfig.setApplications(newChildApplications);
106             /* remove from stand-alone list */
107
108             ApplicationConfigManager.addApplication(clusterConfig);
109
110             UserActivityLogger.getInstance().logActivity(
111                context.getUser().getUsername(),
112                "Added application cluster "+ "\""+clusterConfig.getName()+"\"");
113         }
114
115         return mapping.findForward(Forwards.SUCCESS);
116     }
117
118     private List JavaDoc getNewChildApplications(String JavaDoc[] childAppIds){
119         /* build list of new child applications */
120         List JavaDoc newChildApplications = new LinkedList JavaDoc();
121         if(childAppIds != null){
122             for(int i=0; i < childAppIds.length; i++){
123                 ApplicationConfig newChildApplication =
124                         ApplicationConfigManager.getApplicationConfig(childAppIds[i]);
125                 newChildApplications.add(
126                         newChildApplication);
127             }
128         }
129         return newChildApplications;
130     }
131 }
132
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