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Java > Open Source Codes > org > apache > webapp > admin > resources > SaveDataSourceAction


1 /*
2  * Copyright 2002,2004 The Apache Software Foundation.
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
17
18 package org.apache.webapp.admin.resources;
19
20 import java.io.IOException JavaDoc;
21 import java.net.URLEncoder JavaDoc;
22 import java.util.ArrayList JavaDoc;
23 import java.util.Iterator JavaDoc;
24 import java.util.Locale JavaDoc;
25 import javax.servlet.ServletException JavaDoc;
26 import javax.servlet.http.HttpServletRequest JavaDoc;
27 import javax.servlet.http.HttpServletResponse JavaDoc;
28 import javax.servlet.http.HttpSession JavaDoc;
29 import org.apache.struts.action.Action;
30 import org.apache.struts.action.ActionError;
31 import org.apache.struts.action.ActionErrors;
32 import org.apache.struts.action.ActionForm;
33 import org.apache.struts.action.ActionForward;
34 import org.apache.struts.action.ActionMapping;
35 import javax.management.Attribute JavaDoc;
36 import javax.management.MBeanServer JavaDoc;
37 import javax.management.MBeanServerFactory JavaDoc;
38 import javax.management.QueryExp JavaDoc;
39 import javax.management.Query JavaDoc;
40 import javax.management.ObjectInstance JavaDoc;
41 import javax.management.ObjectName JavaDoc;
42 import javax.management.JMException JavaDoc;
43 import javax.management.MBeanAttributeInfo JavaDoc;
44 import javax.management.MBeanOperationInfo JavaDoc;
45 import javax.management.MBeanInfo JavaDoc;
46 import org.apache.struts.util.MessageResources;
47 import org.apache.webapp.admin.ApplicationServlet;
48
49
50 /**
51  * <p>Implementation of <strong>Action</strong> that saves a new or
52  * updated data source entry.</p>
53  *
54  * @author Manveen Kaur
55  * @version $Revision: 1.12 $ $Date: 2004/10/18 06:37:54 $
56  * @since 4.1
57  */
58
59 public final class SaveDataSourceAction extends Action {
60
61
62     // ----------------------------------------------------- Instance Variables
63
64     /**
65      * The MBeanServer we will be interacting with.
66      */
67     private MBeanServer JavaDoc mserver = null;
68
69     // --------------------------------------------------------- Public Methods
70
71
72     /**
73      * Process the specified HTTP request, and create the corresponding HTTP
74      * response (or forward to another web component that will create it).
75      * Return an <code>ActionForward</code> instance describing where and how
76      * control should be forwarded, or <code>null</code> if the response has
77      * already been completed.
78      *
79      * @param mapping The ActionMapping used to select this instance
80      * @param actionForm The optional ActionForm bean for this request (if any)
81      * @param request The HTTP request we are processing
82      * @param response The HTTP response we are creating
83      *
84      * @exception IOException if an input/output error occurs
85      * @exception ServletException if a servlet exception occurs
86      */
87     public ActionForward execute(ActionMapping mapping,
88                                  ActionForm form,
89                                  HttpServletRequest JavaDoc request,
90                                  HttpServletResponse JavaDoc response)
91         throws IOException JavaDoc, ServletException JavaDoc {
92
93         // Look up the components we will be using as needed
94 if (mserver == null) {
95             mserver = ((ApplicationServlet) getServlet()).getServer();
96         }
97         MessageResources resources = getResources(request);
98         HttpSession JavaDoc session = request.getSession();
99         Locale JavaDoc locale = getLocale(request);
100
101         // Has this transaction been cancelled?
102 if (isCancelled(request)) {
103             return (mapping.findForward("List DataSources Setup"));
104         }
105
106         // Check the transaction token
107 if (!isTokenValid(request)) {
108             response.sendError
109                 (HttpServletResponse.SC_BAD_REQUEST,
110                  resources.getMessage(locale, "users.error.token"));
111             return (null);
112         }
113
114         // Perform any extra validation that is required
115 DataSourceForm dataSourceForm = (DataSourceForm) form;
116         String JavaDoc objectName = dataSourceForm.getObjectName();
117
118         // Perform an "Add DataSource" transaction
119 if (objectName == null) {
120
121             String JavaDoc signature[] = new String JavaDoc[2];
122             signature[0] = "java.lang.String";
123             signature[1] = "java.lang.String";
124
125             Object JavaDoc params[] = new Object JavaDoc[2];
126             params[0] = dataSourceForm.getJndiName();
127             params[1] = ResourceUtils.DATASOURCE_CLASS;
128             String JavaDoc encodedJndiName = URLEncoder.encode(params[0].toString(),
129                                                        "UTF-8");
130
131             String JavaDoc resourcetype = dataSourceForm.getResourcetype();
132             String JavaDoc path = dataSourceForm.getPath();
133             String JavaDoc host = dataSourceForm.getHost();
134             String JavaDoc domain = dataSourceForm.getDomain();
135
136             ObjectName JavaDoc oname = null;
137             ObjectName JavaDoc encodedOName = null;
138
139             try {
140             
141                 if (resourcetype.equals("Global")) {
142                     oname = new ObjectName JavaDoc( domain + ResourceUtils.RESOURCE_TYPE +
143                                             ResourceUtils.GLOBAL_TYPE +
144                                             ",class=" + params[1] +
145                                             ",name=" + params[0]);
146                     encodedOName = new ObjectName JavaDoc( domain +
147                                             ResourceUtils.RESOURCE_TYPE +
148                                             ResourceUtils.GLOBAL_TYPE +
149                                             ",class=" + params[1] +
150                                             ",name=" + encodedJndiName);
151                 } else if (resourcetype.equals("Context")) {
152                     oname = new ObjectName JavaDoc( domain + ResourceUtils.RESOURCE_TYPE +
153                                             ResourceUtils.CONTEXT_TYPE +
154                                             ",path=" + path + ",host=" + host +
155                                             ",class=" + params[1] +
156                                             ",name=" + params[0]);
157                     encodedOName = new ObjectName JavaDoc( domain +
158                                             ResourceUtils.RESOURCE_TYPE +
159                                             ResourceUtils.CONTEXT_TYPE +
160                                             ",path=" + path + ",host=" + host +
161                                             ",class=" + params[1] +
162                                             ",name=" + encodedJndiName);
163                 }
164                 
165                 if (mserver.isRegistered(oname) ||
166                                         mserver.isRegistered(encodedOName)) {
167                     ActionErrors errors = new ActionErrors();
168                     errors.add("jndiName",
169                                new ActionError("resources.invalid.name"));
170                     saveErrors(request, errors);
171                     return (new ActionForward(mapping.getInput()));
172                 }
173                 
174                 oname = ResourceUtils.getNamingResourceObjectName(domain,
175                             resourcetype, path, host);
176                             
177                 // Create the new object and associated MBean
178 objectName = (String JavaDoc) mserver.invoke(oname, "addResource",
179                                                      params, signature);
180
181             } catch (Exception JavaDoc e) {
182
183                 getServlet().log
184                     (resources.getMessage(locale, "users.error.invoke",
185                                           "addResource"), e);
186                 response.sendError
187                     (HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
188                      resources.getMessage(locale, "users.error.invoke",
189                                           "addResource"));
190                 return (null);
191             }
192
193         }
194
195         // Perform an "Update User database" transaction
196 String JavaDoc attribute = null;
197         try {
198
199             ObjectName JavaDoc oname = new ObjectName JavaDoc(objectName);
200
201             attribute = "url";
202             mserver.setAttribute
203                 (oname,
204                  new Attribute JavaDoc(attribute, dataSourceForm.getUrl()));
205             attribute = "driverClassName";
206             mserver.setAttribute
207                 (oname,
208                  new Attribute JavaDoc(attribute, dataSourceForm.getDriverClass()));
209             attribute = "username";
210             mserver.setAttribute
211                 (oname,
212                  new Attribute JavaDoc(attribute, dataSourceForm.getUsername()));
213             attribute = "password";
214             mserver.setAttribute
215                 (oname,
216                  new Attribute JavaDoc(attribute, dataSourceForm.getPassword()));
217             attribute = "maxActive";
218             mserver.setAttribute
219                 (oname,
220                  new Attribute JavaDoc(attribute, dataSourceForm.getActive()));
221             attribute = "maxIdle";
222             mserver.setAttribute
223                 (oname,
224                  new Attribute JavaDoc(attribute, dataSourceForm.getIdle()));
225             attribute = "maxWait";
226             mserver.setAttribute
227                 (oname,
228                  new Attribute JavaDoc(attribute, dataSourceForm.getWait()));
229             attribute = "validationQuery";
230             String JavaDoc validationQuery = dataSourceForm.getQuery();
231             if ((validationQuery != null) && (validationQuery.length()>0)) {
232                 mserver.setAttribute(oname,
233                                 new Attribute JavaDoc(attribute, validationQuery));
234             }
235
236         } catch (Exception JavaDoc e) {
237
238             getServlet().log
239                 (resources.getMessage(locale, "users.error.set.attribute",
240                                       attribute), e);
241             response.sendError
242                 (HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
243                  resources.getMessage(locale, "users.error.set.attribute",
244                                       attribute));
245             return (null);
246
247         }
248
249         // Proceed to the list entries screen
250 return (mapping.findForward("DataSources List Setup"));
251
252     }
253
254
255 }
256
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