1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/***************************************************************************
* Copyright (c) 2004 - 2007 Eike Stepper, Germany.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Eike Stepper - initial API and implementation
**************************************************************************/
package org.eclipse.net4j.util.io;
import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintStream;
/**
* @author Eike Stepper
*/
public final class IOUtil
{
private static final InputStream IN = System.in;
private static final PrintStream OUT = System.out;
private static final PrintStream ERR = System.err;
private IOUtil()
{
}
public static InputStream IN()
{
return IN;
}
public static PrintStream OUT()
{
return OUT;
}
public static PrintStream ERR()
{
return ERR;
}
public static void print(Throwable t, PrintStream stream)
{
t.printStackTrace(stream);
}
public static void print(Throwable t)
{
print(t, ERR);
}
public static IOException closeSilent(Closeable closeable)
{
try
{
if (closeable != null)
{
closeable.close();
}
return null;
}
catch (IOException ex)
{
return ex;
}
}
public static void close(Closeable closeable) throws IORuntimeException
{
try
{
if (closeable != null)
{
closeable.close();
}
}
catch (IOException ex)
{
throw new IORuntimeException(ex);
}
}
public static void run(Closeable io, IORunnable runnable) throws IORuntimeException
{
try
{
runnable.run(io);
}
catch (IOException ex)
{
throw new IORuntimeException(ex);
}
finally
{
close(io);
}
}
public static void read(File file, IORunnable<FileReader> runnable) throws IORuntimeException
{
try
{
FileReader io = new FileReader(file);
run(io, runnable);
}
catch (IOException ex)
{
throw new IORuntimeException(ex);
}
}
public static void write(File file, IORunnable<FileWriter> runnable) throws IORuntimeException
{
try
{
FileWriter io = new FileWriter(file);
run(io, runnable);
}
catch (IOException ex)
{
throw new IORuntimeException(ex);
}
}
public static void input(File file, IORunnable<FileInputStream> runnable) throws IORuntimeException
{
try
{
FileInputStream io = new FileInputStream(file);
run(io, runnable);
}
catch (IOException ex)
{
throw new IORuntimeException(ex);
}
}
public static void output(File file, IORunnable<FileOutputStream> runnable) throws IORuntimeException
{
try
{
FileOutputStream io = new FileOutputStream(file);
run(io, runnable);
}
catch (IOException ex)
{
throw new IORuntimeException(ex);
}
}
}
|
