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Java > Open Source Codes > org > outerj > daisy > httpconnector > handlers > RoleHandler


1 /*
2  * Copyright 2004 Outerthought bvba and Schaubroeck nv
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.outerj.daisy.httpconnector.handlers;
17
18 import org.mortbay.http.HttpRequest;
19 import org.mortbay.http.HttpResponse;
20 import org.outerj.daisy.repository.Repository;
21 import org.outerj.daisy.repository.RepositoryException;
22 import org.outerj.daisy.repository.user.UserManager;
23 import org.outerj.daisy.repository.user.Role;
24 import org.outerj.daisy.httpconnector.RequestHandler;
25 import org.outerj.daisy.xmlutil.LocalSAXParserFactory;
26 import org.outerx.daisy.x10.RoleDocument;
27 import org.apache.xmlbeans.XmlOptions;
28
29 import java.util.Map JavaDoc;
30 import java.io.IOException JavaDoc;
31
32 public class RoleHandler implements RequestHandler {
33     public String JavaDoc getPathPattern() {
34         return "/role/*";
35     }
36
37     public void handleRequest(Map JavaDoc matchMap, HttpRequest request, HttpResponse response, Repository repository) throws Exception JavaDoc {
38         long roleId = Long.parseLong((String JavaDoc)matchMap.get("1"));
39         UserManager userMan = repository.getUserManager();
40
41         if (request.getMethod().equals(HttpRequest.__GET)) {
42             Role role = userMan.getRole(roleId, true);
43             role.getXml().save(response.getOutputStream());
44             response.commit();
45         } else if (request.getMethod().equals(HttpRequest.__POST)) {
46             XmlOptions xmlOptions = new XmlOptions().setLoadUseXMLReader(LocalSAXParserFactory.newXmlReader());
47             RoleDocument roleDocument = RoleDocument.Factory.parse(request.getInputStream(), xmlOptions);
48             RoleDocument.Role roleXml = roleDocument.getRole();
49
50             Role role = userMan.getRole(roleId, true);
51             updateRoleFromXml(response, roleXml, role);
52         } else if (request.getMethod().equals(HttpRequest.__DELETE)) {
53             userMan.deleteRole(roleId);
54             response.commit();
55             return;
56         } else {
57             response.sendError(HttpResponse.__405_Method_Not_Allowed);
58         }
59     }
60
61     private void updateRoleFromXml(HttpResponse response, RoleDocument.Role roleXml, Role role) throws RepositoryException, IOException JavaDoc {
62         String JavaDoc roleDescription = roleXml.getDescription();
63         String JavaDoc roleName = roleXml.getName();
64
65         // check for concurrent modifications
66 if (role.getUpdateCount() != roleXml.getUpdateCount())
67             throw new RepositoryException("The role was updated by someone else concurrently.");
68
69         // update object
70 role.setDescription(roleDescription);
71         role.setName(roleName);
72         role.save();
73
74         role.getXml().save(response.getOutputStream());
75         response.commit();
76     }
77 }
78
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