View Javadoc
1   /*
2    * Copyright (C) 2014 Obeo.
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  package org.eclipse.jgit.util;
44  
45  /**
46   * Describes the result of running an external process.
47   *
48   * @since 3.7
49   */
50  public class ProcessResult {
51  	/**
52  	 * Status of a process' execution.
53  	 */
54  	public static enum Status {
55  		/**
56  		 * The script was found and launched properly. It may still have exited
57  		 * with a non-zero {@link #exitCode}.
58  		 */
59  		OK,
60  
61  		/** The script was not found on disk and thus could not be launched. */
62  		NOT_PRESENT,
63  
64  		/**
65  		 * The script was found but could not be launched since it was not
66  		 * supported by the current {@link FS}.
67  		 */
68  		NOT_SUPPORTED;
69  	}
70  
71  	/** The exit code of the process. */
72  	private final int exitCode;
73  
74  	/** Status of the process' execution. */
75  	private final Status status;
76  
77  	/**
78  	 * Instantiates a process result with the given status and an exit code of
79  	 * <code>-1</code>.
80  	 *
81  	 * @param status
82  	 *            Status describing the execution of the external process.
83  	 */
84  	public ProcessResult(Status status) {
85  		this(-1, status);
86  	}
87  
88  	/**
89  	 * <p>Constructor for ProcessResult.</p>
90  	 *
91  	 * @param exitCode
92  	 *            Exit code of the process.
93  	 * @param status
94  	 *            Status describing the execution of the external process.
95  	 */
96  	public ProcessResult(int exitCode, Status status) {
97  		this.exitCode = exitCode;
98  		this.status = status;
99  	}
100 
101 	/**
102 	 * Get exit code of the process.
103 	 *
104 	 * @return The exit code of the process.
105 	 */
106 	public int getExitCode() {
107 		return exitCode;
108 	}
109 
110 	/**
111 	 * Get the status of the process' execution.
112 	 *
113 	 * @return The status of the process' execution.
114 	 */
115 	public Status getStatus() {
116 		return status;
117 	}
118 
119 	/**
120 	 * Whether the execution occurred and resulted in an error
121 	 *
122 	 * @return <code>true</code> if the execution occurred and resulted in a
123 	 *         return code different from 0, <code>false</code> otherwise.
124 	 * @since 4.0
125 	 */
126 	public boolean isExecutedWithError() {
127 		return getStatus() == ProcessResult.Status.OK && getExitCode() != 0;
128 	}
129 }