blob: bdbcced68afa633b0a44bd5a54838512cf95ea1c (
plain)
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
|
/* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
package com.sun.star.lib.loader;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
/**
* This class provides functionality for reading string values from the
* Windows Registry.
*/
final class WinRegKey {
private final String m_keyName;
/**
* Constructs a <code>WinRegKey</code>.
*/
public WinRegKey( String keyName ) {
m_keyName = keyName;
}
/**
* Reads the default string value.
*/
public String getStringValue() throws WinRegKeyException {
try {
Process p = Runtime.getRuntime().exec(new String[]{"reg", "QUERY", m_keyName});
BufferedReader r = new BufferedReader(new InputStreamReader(p.getInputStream()));
String v = null;
Pattern pt = Pattern.compile("\\s+\\(Default\\)\\s+REG_SZ\\s+(.+)");
for (;;) {
String s = r.readLine();
if (s == null) {
break;
}
Matcher m = pt.matcher(s);
if (m.matches()) {
if (v != null) {
throw new WinRegKeyException("reg QUERY did not provided expected output");
}
v = m.group(1);
}
}
p.waitFor();
int e = p.exitValue();
if (e != 0) {
throw new WinRegKeyException("reg QUERY exited with " + e);
}
if (v == null) {
throw new WinRegKeyException("reg QUERY did not provided expected output");
}
return v;
} catch (WinRegKeyException e) {
throw e;
} catch (Exception e) {
throw new WinRegKeyException(e);
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
