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
|
/*
* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* This utils class is been used by test T8003512 which is compiled with Java 6
* only features. So if this class is modified, it should be so using Java 6
* features only.
*/
import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.Closeable;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
public class Utils {
static final sun.tools.jar.Main jarTool =
new sun.tools.jar.Main(System.out, System.err, "jar-tool");
static final com.sun.tools.javac.Main javac =
new com.sun.tools.javac.Main();
private Utils(){}
public static boolean compile(String... args) {
return javac.compile(args) == 0;
}
public static void createClassFile(File javaFile, File superClass,
boolean delete) throws IOException {
createJavaFile(javaFile, superClass);
if (!compile(javaFile.getName())) {
throw new RuntimeException("compile failed unexpectedly");
}
if (delete) javaFile.delete();
}
public static void createJavaFile(File outFile) throws IOException {
createJavaFile(outFile, null);
}
public static void createJavaFile(File outFile, File superClass) throws IOException {
PrintStream ps = null;
String srcStr = "public class " + getSimpleName(outFile) + " ";
if (superClass != null) {
srcStr = srcStr.concat("extends " + getSimpleName(superClass) + " ");
}
srcStr = srcStr.concat("{}");
try {
FileOutputStream fos = new FileOutputStream(outFile);
ps = new PrintStream(fos);
ps.println(srcStr);
} finally {
close(ps);
}
}
static String getClassFileName(File javaFile) {
return javaFile.getName().endsWith(".java")
? javaFile.getName().replace(".java", ".class")
: null;
}
static String getSimpleName(File inFile) {
String fname = inFile.getName();
return fname.substring(0, fname.indexOf("."));
}
public static void copyStream(InputStream in, OutputStream out) throws IOException {
byte[] buf = new byte[8192];
int n = in.read(buf);
while (n > 0) {
out.write(buf, 0, n);
n = in.read(buf);
}
}
public static void close(Closeable c) {
if (c != null) {
try {
c.close();
} catch (IOException ignore) {}
}
}
public static void deleteFile(File f) {
if (!f.delete()) {
throw new RuntimeException("could not delete file: " + f.getAbsolutePath());
}
}
public static void cat(File output, File... files) throws IOException {
BufferedInputStream bis = null;
BufferedOutputStream bos = null;
FileOutputStream fos = null;
try {
fos = new FileOutputStream(output);
bos = new BufferedOutputStream(fos);
for (File x : files) {
FileInputStream fis = new FileInputStream(x);
bis = new BufferedInputStream(fis);
copyStream(bis, bos);
Utils.close(bis);
}
} finally {
Utils.close(bis);
Utils.close(bos);
Utils.close(fos);
}
}
}
|
