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


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.variant.VariantManager;
23 import org.outerj.daisy.repository.variant.Branch;
24 import org.outerj.daisy.httpconnector.RequestHandler;
25 import org.outerj.daisy.httpconnector.HttpUtil;
26 import org.outerj.daisy.xmlutil.LocalSAXParserFactory;
27 import org.apache.xmlbeans.XmlObject;
28 import org.apache.xmlbeans.XmlOptions;
29 import org.outerx.daisy.x10.BranchDocument;
30
31 import java.util.Map JavaDoc;
32
33 public class BranchHandler implements RequestHandler {
34     public String JavaDoc getPathPattern() {
35         return "/branch/*";
36     }
37
38     public void handleRequest(Map JavaDoc matchMap, HttpRequest request, HttpResponse response, Repository repository) throws Exception JavaDoc {
39         long id = HttpUtil.parseId("branch", (String JavaDoc)matchMap.get("1"));
40
41         VariantManager variantManager = repository.getVariantManager();
42
43         if (request.getMethod().equals(HttpRequest.__GET)) {
44             Branch branch = variantManager.getBranch(id, true);
45             XmlObject branchDocument = branch.getXml();
46             branchDocument.save(response.getOutputStream());
47             response.commit();
48         } else if (request.getMethod().equals(HttpRequest.__POST)) {
49             // A POST updates the Branch
50 Branch branch = variantManager.getBranch(id, true);
51             XmlOptions xmlOptions = new XmlOptions().setLoadUseXMLReader(LocalSAXParserFactory.newXmlReader());
52             BranchDocument branchDocument = BranchDocument.Factory.parse(request.getInputStream(), xmlOptions);
53             BranchDocument.Branch branchXml = branchDocument.getBranch();
54             if (branch.getUpdateCount() != branchXml.getUpdateCount())
55                 throw new RepositoryException("The branch was updated concurrently.");
56             branch.setAllFromXml(branchXml);
57             branch.save();
58
59             branchDocument = branch.getXml();
60             branchDocument.save(response.getOutputStream());
61             response.commit();
62         } else if (request.getMethod().equals(HttpRequest.__DELETE)) {
63             variantManager.deleteBranch(id);
64             response.commit();
65         } else {
66             response.sendError(HttpResponse.__405_Method_Not_Allowed);
67         }
68     }
69 }
70
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