1 /*
2 * Copyright (C) 2011, 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.dfs;
45
46 import org.eclipse.jgit.internal.storage.pack.ObjectToPack;
47 import org.eclipse.jgit.internal.storage.pack.StoredObjectRepresentation;
48 import org.eclipse.jgit.lib.AnyObjectId;
49
50 /** {@link ObjectToPack} for {@link DfsObjDatabase}. */
51 class DfsObjectToPack extends ObjectToPack {
52 private static final int FLAG_FOUND = 1 << 0;
53
54 /** Pack to reuse compressed data from, otherwise null. */
55 DfsPackFile pack;
56
57 /** Offset of the object's header in {@link #pack}. */
58 long offset;
59
60 /** Length of the data section of the object. */
61 long length;
62
63 DfsObjectToPack(AnyObjectId src, int type) {
64 super(src, type);
65 }
66
67 final boolean isFound() {
68 return isExtendedFlag(FLAG_FOUND);
69 }
70
71 final void setFound() {
72 setExtendedFlag(FLAG_FOUND);
73 }
74
75 /** {@inheritDoc} */
76 @Override
77 protected void clearReuseAsIs() {
78 super.clearReuseAsIs();
79 pack = null;
80 }
81
82 /** {@inheritDoc} */
83 @Override
84 public void select(StoredObjectRepresentation ref) {
85 DfsObjectRepresentation ptr = (DfsObjectRepresentation) ref;
86 this.pack = ptr.pack;
87 this.offset = ptr.offset;
88 this.length = ptr.length;
89 }
90 }