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1   /*
2    * Copyright (C) 2010, Sasa Zivkov <sasa.zivkov@sap.com>
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.notes;
45  
46  import java.io.IOException;
47  import java.text.MessageFormat;
48  
49  import org.eclipse.jgit.internal.JGitText;
50  
51  /**
52   * This exception will be thrown from the {@link NoteMerger} when a conflict on
53   * Notes content is found during merge.
54   */
55  public class NotesMergeConflictException extends IOException {
56  	private static final long serialVersionUID = 1L;
57  
58  	/**
59  	 * Construct a NotesMergeConflictException for the specified base, ours and
60  	 * theirs note versions.
61  	 *
62  	 * @param base
63  	 *            note version
64  	 * @param ours
65  	 *            note version
66  	 * @param theirs
67  	 *            note version
68  	 */
69  	public NotesMergeConflictException(Note base, Note ours, Note theirs) {
70  		super(MessageFormat.format(JGitText.get().mergeConflictOnNotes,
71  				noteOn(base, ours, theirs), noteData(base), noteData(ours),
72  				noteData(theirs)));
73  	}
74  
75  	/**
76  	 * Constructs a NotesMergeConflictException for the specified base, ours and
77  	 * theirs versions of the root note tree.
78  	 *
79  	 * @param base
80  	 *            version of the root note tree
81  	 * @param ours
82  	 *            version of the root note tree
83  	 * @param theirs
84  	 *            version of the root note tree
85  	 */
86  	public NotesMergeConflictException(NonNoteEntry base, NonNoteEntry ours,
87  			NonNoteEntry theirs) {
88  		super(MessageFormat.format(
89  				JGitText.get().mergeConflictOnNonNoteEntries, name(base),
90  				name(ours), name(theirs)));
91  	}
92  
93  	private static String noteOn(Note base, Note ours, Note theirs) {
94  		if (base != null)
95  			return base.name();
96  		if (ours != null)
97  			return ours.name();
98  		return theirs.name();
99  	}
100 
101 	private static String noteData(Note n) {
102 		if (n != null)
103 			return n.getData().name();
104 		return ""; //$NON-NLS-1$
105 	}
106 
107 	private static String name(NonNoteEntry e) {
108 		return e != null ? e.name() : ""; //$NON-NLS-1$
109 	}
110 }