1 /***
2 * Copyright (C) 2008 Jeremy Thomerson (jthomerson@users.sourceforge.net)
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 package net.sf.vcaperture.model;
18
19 import java.io.ByteArrayOutputStream;
20 import java.util.ArrayList;
21 import java.util.Collection;
22 import java.util.HashMap;
23 import java.util.Iterator;
24 import java.util.List;
25
26 import org.tmatesoft.svn.core.SVNException;
27 import org.tmatesoft.svn.core.SVNLogEntry;
28 import org.tmatesoft.svn.core.SVNLogEntryPath;
29 import org.tmatesoft.svn.core.SVNNodeKind;
30 import org.tmatesoft.svn.core.SVNURL;
31 import org.tmatesoft.svn.core.internal.io.dav.DAVRepositoryFactory;
32 import org.tmatesoft.svn.core.io.SVNRepositoryFactory;
33
34 /***
35 * An implementation of <tt>AbstractRepository</tt> that allows access to a Subversion repository.
36 * Internally, this implementation uses SVNKit.
37 *
38 * @author Jeremy Thomerson (jthomerson@users.sourceforge.net)
39 * @see http://svnkit.com/
40 * @see http://subversion.tigris.org/
41 */
42 public class SVNRepository extends AbstractRepository {
43
44 private boolean mInitialized;
45 private org.tmatesoft.svn.core.io.SVNRepository mRepo;
46
47 @Override
48 public boolean isRevisionNewer(String name, String startingRevision) {
49 return Long.parseLong(name) > Long.parseLong(startingRevision);
50 }
51
52 @Override
53 public String getLatestRevision() {
54 init();
55 try {
56 return Long.toString(mRepo.getLatestRevision());
57 } catch (SVNException se) {
58 throw new RuntimeException("Error getting latest revision: " + se.getMessage(), se);
59 }
60 }
61
62 @Override
63 public Collection<Revision> getRevisions(String startingRevision, int maxRevisions) {
64 init();
65 List<Revision> list = new ArrayList<Revision>();
66 Collection<SVNLogEntry> entries = new ArrayList<SVNLogEntry>();
67 try {
68 long start = Long.parseLong(startingRevision);
69 mRepo.log(new String[] { "" }, entries, start, mRepo.getLatestRevision(), true, false);
70 LOGGER.debug("retrieved " + entries.size() + " entries");
71 int cnt = 0;
72 for (SVNLogEntry entry : entries) {
73 if (cnt++ >= maxRevisions) {
74 break;
75 }
76 LOGGER.debug("retrieving entry: " + entry.getRevision());
77 Revision rev = new Revision();
78 rev.setName(Long.toString(entry.getRevision()));
79 rev.setCommitMessage(entry.getMessage());
80 rev.setCommitDate(entry.getDate());
81 rev.setAuthor(entry.getAuthor());
82
83 List<RepoFileRevision> files = new ArrayList<RepoFileRevision>();
84 for (Iterator it = entry.getChangedPaths().keySet().iterator(); it.hasNext();) {
85 SVNLogEntryPath entryPath = (SVNLogEntryPath) entry.getChangedPaths().get(it.next());
86 RepoFileRevision rfr = new RepoFileRevision();
87 rfr.setAuthor(rev.getAuthor());
88 rfr.setRelativePath(entryPath.getPath());
89 rfr.setRevision(rev.getName());
90 SVNNodeKind kind = mRepo.checkPath(entryPath.getPath(), entry.getRevision());
91 rfr.setDirectory(kind == SVNNodeKind.DIR);
92 rfr.setAction(mapAction(entryPath.getType()));
93 if (entryPath.getType() != SVNLogEntryPath.TYPE_DELETED && kind != SVNNodeKind.DIR) {
94 ByteArrayOutputStream baos = new ByteArrayOutputStream();
95 mRepo.getFile(entryPath.getPath(), entry.getRevision(), new HashMap(), baos);
96 rfr.setContents(baos.toString());
97 }
98 if (entryPath.getCopyPath() != null) {
99 RepoFileRevision copy = new RepoFileRevision();
100 copy.setRelativePath(entryPath.getCopyPath());
101 copy.setRevision(Long.toString(entryPath.getCopyRevision()));
102 rfr.setCopyOfRevision(copy);
103 }
104 files.add(rfr);
105 }
106 rev.setFiles(files.toArray(new RepoFileRevision[files.size()]));
107 list.add(rev);
108 }
109 } catch (Exception ex) {
110 throw new RuntimeException("Error getting revisions: " + ex.getMessage(), ex);
111 }
112 return list;
113 }
114
115 private RepoFileAction mapAction(char type) {
116 switch (type) {
117 case SVNLogEntryPath.TYPE_MODIFIED:
118 return RepoFileAction.MODIFIED;
119 case SVNLogEntryPath.TYPE_ADDED:
120 return RepoFileAction.ADDED;
121 case SVNLogEntryPath.TYPE_DELETED:
122 return RepoFileAction.DELETED;
123 default:
124 break;
125 }
126 return null;
127 }
128
129 private synchronized void init() {
130 if (!isInitialized()) {
131 DAVRepositoryFactory.setup();
132 try {
133 SVNURL url = SVNURL.parseURIDecoded(getURL());
134 mRepo = SVNRepositoryFactory.create(url);
135 LOGGER.debug("----------------------------------------------------------------------------------------------------");
136 LOGGER.debug("Connected to SVN repository: " + getURL());
137 LOGGER.debug("Repository Root: " + mRepo.getRepositoryRoot(true));
138 LOGGER.debug("Repository UUID: " + mRepo.getRepositoryUUID(true));
139 LOGGER.debug("Latest Revision: " + mRepo.getLatestRevision());
140 LOGGER.debug("----------------------------------------------------------------------------------------------------");
141 setInitialized(true);
142 } catch (Exception ex) {
143 throw new RuntimeException("Unable to create backing repository: " + ex.getMessage(), ex);
144 }
145 }
146 }
147
148 public boolean isInitialized() {
149 return mInitialized;
150 }
151
152 public void setInitialized(boolean initialized) {
153 mInitialized = initialized;
154 }
155
156 @Override
157 public RepoFile getFile(String relativePath) {
158 throw new UnsupportedOperationException("Need to implement if this method is necessary.");
159 }
160 }