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


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.Document;
22 import org.outerj.daisy.repository.VersionState;
23 import org.outerj.daisy.repository.Version;
24 import org.outerj.daisy.httpconnector.RequestHandler;
25 import org.outerj.daisy.httpconnector.HttpUtil;
26 import org.outerj.daisy.httpconnector.BadRequestException;
27
28 import java.util.Map JavaDoc;
29
30 public class VersionHandler implements RequestHandler {
31     public String JavaDoc getPathPattern() {
32         return "/document/*/version/*";
33     }
34
35     public void handleRequest(Map JavaDoc matchMap, HttpRequest request, HttpResponse response, Repository repository) throws Exception JavaDoc {
36         long documentId = HttpUtil.parseId("document", (String JavaDoc)matchMap.get("1"));
37         long versionId = HttpUtil.parseId("version", (String JavaDoc)matchMap.get("2"));
38         long branchId = HttpUtil.getBranchId(request, repository);
39         long languageId = HttpUtil.getLanguageId(request, repository);
40
41         if (request.getMethod().equals(HttpRequest.__GET)) {
42             Document document = repository.getDocument(documentId, branchId, languageId, false);
43             document.getVersion(versionId).getXml().save(response.getOutputStream());
44             response.commit();
45             return;
46         } else if (request.getMethod().equals(HttpRequest.__POST)) {
47             String JavaDoc action = request.getParameter("action");
48             if ("changeState".equals(action)) {
49                 String JavaDoc newState = request.getParameter("newState");
50                 if (newState == null)
51                     throw new BadRequestException("Missing parameter \"newState\".");
52                 VersionState versionState = VersionState.fromString(newState);
53                 Document document = repository.getDocument(documentId, branchId, languageId, true);
54                 Version version = document.getVersion(versionId);
55                 version.setState(versionState);
56                 version.getShallowXml().save(response.getOutputStream());
57                 response.commit();
58                 return;
59             } else {
60                 throw new BadRequestException("Unsupported value for \"action\" parameter: " + action);
61             }
62         } else {
63             response.sendError(HttpResponse.__405_Method_Not_Allowed);
64             return;
65         }
66     }
67 }
68
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