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1   /*
2    * Copyright (C) 2011, Chris Aniszczyk <caniszczyk@gmail.com>
3    * Copyright (C) 2009, Robin Rosenberg <robin.rosenberg@dewire.com>
4    * and other copyright owners as documented in the project's IP log.
5    *
6    * This program and the accompanying materials are made available
7    * under the terms of the Eclipse Distribution License v1.0 which
8    * accompanies this distribution, is reproduced below, and is
9    * available at http://www.eclipse.org/org/documents/edl-v10.php
10   *
11   * All rights reserved.
12   *
13   * Redistribution and use in source and binary forms, with or
14   * without modification, are permitted provided that the following
15   * conditions are met:
16   *
17   * - Redistributions of source code must retain the above copyright
18   *   notice, this list of conditions and the following disclaimer.
19   *
20   * - Redistributions in binary form must reproduce the above
21   *   copyright notice, this list of conditions and the following
22   *   disclaimer in the documentation and/or other materials provided
23   *   with the distribution.
24   *
25   * - Neither the name of the Eclipse Foundation, Inc. nor the
26   *   names of its contributors may be used to endorse or promote
27   *   products derived from this software without specific prior
28   *   written permission.
29   *
30   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
31   * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
32   * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
33   * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
34   * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
35   * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
36   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
37   * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
38   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
39   * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40   * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
41   * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
42   * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
43   */
44  
45  package org.eclipse.jgit.internal.storage.file;
46  
47  import java.io.Serializable;
48  
49  import org.eclipse.jgit.internal.JGitText;
50  import org.eclipse.jgit.lib.CheckoutEntry;
51  import org.eclipse.jgit.lib.Constants;
52  import org.eclipse.jgit.lib.ObjectId;
53  import org.eclipse.jgit.lib.PersonIdent;
54  import org.eclipse.jgit.lib.ReflogEntry;
55  import org.eclipse.jgit.util.RawParseUtils;
56  
57  /**
58   * Parsed reflog entry
59   */
60  public class ReflogEntryImpl implements Serializable, ReflogEntry {
61  	private static final long serialVersionUID = 1L;
62  
63  	private ObjectId oldId;
64  
65  	private ObjectId newId;
66  
67  	private PersonIdent who;
68  
69  	private String comment;
70  
71  	ReflogEntryImpl(byte[] raw, int pos) {
72  		oldId = ObjectId.fromString(raw, pos);
73  		pos += Constants.OBJECT_ID_STRING_LENGTH;
74  		if (raw[pos++] != ' ')
75  			throw new IllegalArgumentException(
76  					JGitText.get().rawLogMessageDoesNotParseAsLogEntry);
77  		newId = ObjectId.fromString(raw, pos);
78  		pos += Constants.OBJECT_ID_STRING_LENGTH;
79  		if (raw[pos++] != ' ') {
80  			throw new IllegalArgumentException(
81  					JGitText.get().rawLogMessageDoesNotParseAsLogEntry);
82  		}
83  		who = RawParseUtils.parsePersonIdentOnly(raw, pos);
84  		int p0 = RawParseUtils.next(raw, pos, '\t');
85  		if (p0 >= raw.length)
86  			comment = ""; // personident has no \t, no comment present //$NON-NLS-1$
87  		else {
88  			int p1 = RawParseUtils.nextLF(raw, p0);
89  			comment = p1 > p0 ? RawParseUtils.decode(raw, p0, p1 - 1) : ""; //$NON-NLS-1$
90  		}
91  	}
92  
93  	/* (non-Javadoc)
94  	 * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#getOldId()
95  	 */
96  	/** {@inheritDoc} */
97  	@Override
98  	public ObjectId getOldId() {
99  		return oldId;
100 	}
101 
102 	/* (non-Javadoc)
103 	 * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#getNewId()
104 	 */
105 	/** {@inheritDoc} */
106 	@Override
107 	public ObjectId getNewId() {
108 		return newId;
109 	}
110 
111 	/* (non-Javadoc)
112 	 * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#getWho()
113 	 */
114 	/** {@inheritDoc} */
115 	@Override
116 	public PersonIdent getWho() {
117 		return who;
118 	}
119 
120 	/* (non-Javadoc)
121 	 * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#getComment()
122 	 */
123 	/** {@inheritDoc} */
124 	@Override
125 	public String getComment() {
126 		return comment;
127 	}
128 
129 	/** {@inheritDoc} */
130 	@SuppressWarnings("nls")
131 	@Override
132 	public String toString() {
133 		return "Entry[" + oldId.name() + ", " + newId.name() + ", " + getWho()
134 				+ ", " + getComment() + "]";
135 	}
136 
137 	/* (non-Javadoc)
138 	 * @see org.eclipse.jgit.internal.storage.file.ReflogEntry#parseCheckout()
139 	 */
140 	/** {@inheritDoc} */
141 	@Override
142 	public CheckoutEntry parseCheckout() {
143 		if (getComment().startsWith(CheckoutEntryImpl.CHECKOUT_MOVING_FROM))
144 			return new CheckoutEntryImpl(this);
145 		else
146 			return null;
147 	}
148 }