|
68
|
1 /*
|
|
|
2 Copyright (c) 2008 Franklin Schmidt <fschmidt@gmail.com>
|
|
|
3
|
|
|
4 Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
|
5 of this software and associated documentation files (the "Software"), to deal
|
|
|
6 in the Software without restriction, including without limitation the rights
|
|
|
7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
|
8 copies of the Software, and to permit persons to whom the Software is
|
|
|
9 furnished to do so, subject to the following conditions:
|
|
|
10
|
|
|
11 The above copyright notice and this permission notice shall be included in
|
|
|
12 all copies or substantial portions of the Software.
|
|
|
13
|
|
|
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
|
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
|
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
|
17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
|
18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
|
19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
|
20 THE SOFTWARE.
|
|
|
21 */
|
|
|
22
|
|
|
23 package fschmidt.util.java;
|
|
|
24
|
|
|
25 import java.io.*;
|
|
|
26
|
|
|
27
|
|
|
28 public final class ProcUtils {
|
|
|
29 private ProcUtils() {} // never
|
|
|
30
|
|
|
31 public static class ProcException extends IOException {
|
|
|
32 private ProcException(String msg) {
|
|
|
33 super(msg);
|
|
|
34 }
|
|
|
35 }
|
|
|
36
|
|
|
37 public static void checkProc(Process proc)
|
|
|
38 throws IOException, ProcException
|
|
|
39 {
|
|
|
40 try {
|
|
|
41 proc.waitFor();
|
|
|
42 } catch(InterruptedException e) {
|
|
|
43 throw new RuntimeException(e);
|
|
|
44 }
|
|
|
45 int exitVal = proc.exitValue();
|
|
|
46 if( exitVal != 0 ) {
|
|
|
47 Reader err = new InputStreamReader(proc.getErrorStream());
|
|
|
48 String error = IoUtils.readAll(err);
|
|
|
49 err.close();
|
|
|
50 throw new ProcException(error);
|
|
|
51 }
|
|
|
52 }
|
|
|
53
|
|
|
54 public static String getOutput(Process proc)
|
|
|
55 throws IOException
|
|
|
56 {
|
|
|
57 BufferedReader in = new BufferedReader(new InputStreamReader(proc.getInputStream()));
|
|
|
58 String s = IoUtils.readAll(in);
|
|
|
59 in.close();
|
|
|
60 return s;
|
|
|
61 }
|
|
|
62
|
|
|
63 public static String exec(String[] cmd)
|
|
|
64 throws IOException, ProcException
|
|
|
65 {
|
|
|
66 Process proc = Runtime.getRuntime().exec(cmd);
|
|
|
67 String s = getOutput(proc);
|
|
|
68 checkProc(proc);
|
|
|
69 return s;
|
|
|
70 }
|
|
|
71
|
|
|
72 }
|
