diff options
Diffstat (limited to 'odk/source/com/sun/star/lib/loader/WinRegKey.java')
-rw-r--r-- | odk/source/com/sun/star/lib/loader/WinRegKey.java | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/odk/source/com/sun/star/lib/loader/WinRegKey.java b/odk/source/com/sun/star/lib/loader/WinRegKey.java new file mode 100644 index 000000000..3276458fc --- /dev/null +++ b/odk/source/com/sun/star/lib/loader/WinRegKey.java @@ -0,0 +1,83 @@ +/* -*- 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.nio.charset.Charset; +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(), Charset.defaultCharset())); + 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: */ |