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1   /*
2    * Copyright (C) 2012, Robin Rosenberg <robin.rosenberg@dewire.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  package org.eclipse.jgit.util.io;
44  
45  import java.io.IOException;
46  import java.io.Writer;
47  import java.security.AccessController;
48  import java.security.PrivilegedAction;
49  
50  import org.eclipse.jgit.util.SystemReader;
51  
52  /**
53   * An alternative PrintWriter that doesn't catch exceptions.
54   *
55   * @since 2.2
56   */
57  public class ThrowingPrintWriter extends Writer {
58  
59  	private final Writer out;
60  
61  	private final String LF;
62  
63  	/**
64  	 * Construct a JGitPrintWriter
65  	 *
66  	 * @param out
67  	 *            the underlying {@link Writer}
68  	 */
69  	public ThrowingPrintWriter(Writer out) {
70  		this.out = out;
71  		LF = AccessController.doPrivileged(new PrivilegedAction<String>() {
72  			public String run() {
73  				return SystemReader.getInstance().getProperty("line.separator"); //$NON-NLS-1$
74  			}
75  		});
76  	}
77  
78  	@Override
79  	public void write(char[] cbuf, int off, int len) throws IOException {
80  		out.write(cbuf, off, len);
81  	}
82  
83  	@Override
84  	public void flush() throws IOException {
85  		out.flush();
86  	}
87  
88  	@Override
89  	public void close() throws IOException {
90  		out.close();
91  	}
92  
93  	/**
94  	 * Print a string and terminate with a line feed.
95  	 *
96  	 * @param s
97  	 * @throws IOException
98  	 */
99  	public void println(String s) throws IOException {
100 		print(s + LF);
101 	}
102 
103 	/**
104 	 * Print a platform dependent new line
105 	 *
106 	 * @throws IOException
107 	 */
108 	public void println() throws IOException {
109 		print(LF);
110 	}
111 
112 	/**
113 	 * Print a char
114 	 *
115 	 * @param value
116 	 * @throws IOException
117 	 */
118 	public void print(char value) throws IOException {
119 		print(String.valueOf(value));
120 	}
121 
122 	/**
123 	 * Print an int as string
124 	 *
125 	 * @param value
126 	 * @throws IOException
127 	 */
128 	public void print(int value) throws IOException {
129 		print(String.valueOf(value));
130 	}
131 
132 	/**
133 	 * Print a long as string
134 	 *
135 	 * @param value
136 	 * @throws IOException
137 	 */
138 	public void print(long value) throws IOException {
139 		print(String.valueOf(value));
140 	}
141 
142 	/**
143 	 * Print a short as string
144 	 *
145 	 * @param value
146 	 * @throws IOException
147 	 */
148 	public void print(short value) throws IOException {
149 		print(String.valueOf(value));
150 	}
151 
152 	/**
153 	 * Print a formatted message according to
154 	 * {@link String#format(String, Object...)}.
155 	 *
156 	 * @param fmt
157 	 * @param args
158 	 * @throws IOException
159 	 */
160 	public void format(String fmt, Object... args) throws IOException {
161 		print(String.format(fmt, args));
162 	}
163 
164 	/**
165 	 * Print an object's toString representations
166 	 *
167 	 * @param any
168 	 * @throws IOException
169 	 */
170 	public void print(Object any) throws IOException {
171 		out.write(String.valueOf(any));
172 	}
173 }