1 /*
2 * Copyright (C) 2010, Google Inc.
3 * and other copyright owners as documented in the project's IP log.
4 *
5 * This program and the accompanying materials are made available
6 * under the terms of the Eclipse Distribution License v1.0 which
7 * accompanies this distribution, is reproduced below, and is
8 * available at http://www.eclipse.org/org/documents/edl-v10.php
9 *
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or
13 * without modification, are permitted provided that the following
14 * conditions are met:
15 *
16 * - Redistributions of source code must retain the above copyright
17 * notice, this list of conditions and the following disclaimer.
18 *
19 * - Redistributions in binary form must reproduce the above
20 * copyright notice, this list of conditions and the following
21 * disclaimer in the documentation and/or other materials provided
22 * with the distribution.
23 *
24 * - Neither the name of the Eclipse Foundation, Inc. nor the
25 * names of its contributors may be used to endorse or promote
26 * products derived from this software without specific prior
27 * written permission.
28 *
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
30 * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
31 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
32 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
33 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
34 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
35 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
36 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
37 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
38 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
40 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
41 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
42 */
43
44 package org.eclipse.jgit.internal.storage.file;
45
46 import java.io.File;
47 import java.io.IOException;
48 import java.util.Collection;
49 import java.util.Set;
50
51 import org.eclipse.jgit.internal.storage.pack.ObjectToPack;
52 import org.eclipse.jgit.internal.storage.pack.PackWriter;
53 import org.eclipse.jgit.lib.AbbreviatedObjectId;
54 import org.eclipse.jgit.lib.AnyObjectId;
55 import org.eclipse.jgit.lib.Config;
56 import org.eclipse.jgit.lib.ObjectDatabase;
57 import org.eclipse.jgit.lib.ObjectId;
58 import org.eclipse.jgit.lib.ObjectLoader;
59 import org.eclipse.jgit.lib.ObjectReader;
60 import org.eclipse.jgit.util.FS;
61
62 abstract class FileObjectDatabase extends ObjectDatabase {
63 static enum InsertLooseObjectResult {
64 INSERTED, EXISTS_PACKED, EXISTS_LOOSE, FAILURE;
65 }
66
67 /** {@inheritDoc} */
68 @Override
69 public ObjectReader newReader() {
70 return new WindowCursor(this);
71 }
72
73 /** {@inheritDoc} */
74 @Override
75 public ObjectDirectoryInserter newInserter() {
76 return new ObjectDirectoryInserter(this, getConfig());
77 }
78
79 abstract void resolve(Set<ObjectId> matches, AbbreviatedObjectId id)
80 throws IOException;
81
82 abstract Config getConfig();
83
84 abstract FS getFS();
85
86 abstract Set<ObjectId> getShallowCommits() throws IOException;
87
88 abstract void selectObjectRepresentation(PackWriter packer,
89 ObjectToPack otp, WindowCursor curs) throws IOException;
90
91 abstract File getDirectory();
92
93 abstract File fileFor(AnyObjectId id);
94
95 abstract ObjectLoader openObject(WindowCursor curs, AnyObjectId objectId)
96 throws IOException;
97
98 abstract long getObjectSize(WindowCursor curs, AnyObjectId objectId)
99 throws IOException;
100
101 abstract ObjectLoader openLooseObject(WindowCursor curs, AnyObjectId id)
102 throws IOException;
103
104 abstract InsertLooseObjectResult insertUnpackedObject(File tmp,
105 ObjectId id, boolean createDuplicate) throws IOException;
106
107 abstract PackFile openPack(File pack) throws IOException;
108
109 abstract Collection<PackFile> getPacks();
110 }