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My first initial commit with all of mine experimental changes.

Dmitry Kabak (userdima committed 13 years ago

Commit d37b88d1 parent 3f5b46618352 files · +2598093 −-8690Browse files

Showing the changes to java/pkg/sun/awt/OSInfo.java (1 of 18352 files). Show all

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java/pkg/sun/awt/OSInfo.java+184−0
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1+/*
2+ * Copyright (c) 1997, 2006, Oracle and/or its affiliates. All rights reserved.
3+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4+ *
5+ * This code is free software; you can redistribute it and/or modify it
6+ * under the terms of the GNU General Public License version 2 only, as
7+ * published by the Free Software Foundation. Oracle designates this
8+ * particular file as subject to the "Classpath" exception as provided
9+ * by Oracle in the LICENSE file that accompanied this code.
10+ *
11+ * This code is distributed in the hope that it will be useful, but WITHOUT
12+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14+ * version 2 for more details (a copy is included in the LICENSE file that
15+ * accompanied this code).
16+ *
17+ * You should have received a copy of the GNU General Public License version
18+ * 2 along with this work; if not, write to the Free Software Foundation,
19+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20+ *
21+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22+ * or visit www.oracle.com if you need additional information or have any
23+ * questions.
24+ */
25+
26+package sun.awt;
27+
28+import java.security.PrivilegedAction;
29+import java.util.HashMap;
30+import java.util.Map;
31+
32+import static sun.awt.OSInfo.OSType.*;
33+
34+/**
35+ * @author Pavel Porvatov
36+ */
37+public class OSInfo {
38+ public static enum OSType {
39+ WINDOWS,
40+ LINUX,
41+ SOLARIS,
42+ UNKNOWN
43+ }
44+
45+ /*
46+ The map windowsVersionMap must contain all windows version constants except WINDOWS_UNKNOWN,
47+ and so the method getWindowsVersion() will return the constant for known OS.
48+ It allows compare objects by "==" instead of "equals".
49+ */
50+ public static final WindowsVersion WINDOWS_UNKNOWN = new WindowsVersion(-1, -1);
51+ public static final WindowsVersion WINDOWS_95 = new WindowsVersion(4, 0);
52+ public static final WindowsVersion WINDOWS_98 = new WindowsVersion(4, 10);
53+ public static final WindowsVersion WINDOWS_ME = new WindowsVersion(4, 90);
54+ public static final WindowsVersion WINDOWS_2000 = new WindowsVersion(5, 0);
55+ public static final WindowsVersion WINDOWS_XP = new WindowsVersion(5, 1);
56+ public static final WindowsVersion WINDOWS_2003 = new WindowsVersion(5, 2);
57+ public static final WindowsVersion WINDOWS_VISTA = new WindowsVersion(6, 0);
58+
59+ private static final String OS_NAME = "os.name";
60+ private static final String OS_VERSION = "os.version";
61+
62+ private final static Map<String, WindowsVersion> windowsVersionMap = new HashMap<String, OSInfo.WindowsVersion>();
63+
64+ static {
65+ windowsVersionMap.put(WINDOWS_95.toString(), WINDOWS_95);
66+ windowsVersionMap.put(WINDOWS_98.toString(), WINDOWS_98);
67+ windowsVersionMap.put(WINDOWS_ME.toString(), WINDOWS_ME);
68+ windowsVersionMap.put(WINDOWS_2000.toString(), WINDOWS_2000);
69+ windowsVersionMap.put(WINDOWS_XP.toString(), WINDOWS_XP);
70+ windowsVersionMap.put(WINDOWS_2003.toString(), WINDOWS_2003);
71+ windowsVersionMap.put(WINDOWS_VISTA.toString(), WINDOWS_VISTA);
72+ }
73+
74+ private static final PrivilegedAction<OSType> osTypeAction = new PrivilegedAction<OSType>() {
75+ public OSType run() {
76+ return getOSType();
77+ }
78+ };
79+
80+ private OSInfo() {
81+ // Don't allow to create instances
82+ }
83+
84+ /**
85+ * Returns type of operating system.
86+ */
87+ public static OSType getOSType() throws SecurityException {
88+ String osName = System.getProperty(OS_NAME);
89+
90+ if (osName != null) {
91+ if (osName.contains("Windows")) {
92+ return WINDOWS;
93+ }
94+
95+ if (osName.contains("Linux")) {
96+ return LINUX;
97+ }
98+
99+ if (osName.contains("Solaris") || osName.contains("SunOS")) {
100+ return SOLARIS;
101+ }
102+
103+ // determine another OS here
104+ }
105+
106+ return UNKNOWN;
107+ }
108+
109+ public static PrivilegedAction<OSType> getOSTypeAction() {
110+ return osTypeAction;
111+ }
112+
113+ public static WindowsVersion getWindowsVersion() throws SecurityException {
114+ String osVersion = System.getProperty(OS_VERSION);
115+
116+ if (osVersion == null) {
117+ return WINDOWS_UNKNOWN;
118+ }
119+
120+ synchronized (windowsVersionMap) {
121+ WindowsVersion result = windowsVersionMap.get(osVersion);
122+
123+ if (result == null) {
124+ // Try parse version and put object into windowsVersionMap
125+ String[] arr = osVersion.split("\\.");
126+
127+ if (arr.length == 2) {
128+ try {
129+ result = new WindowsVersion(Integer.parseInt(arr[0]), Integer.parseInt(arr[1]));
130+ } catch (NumberFormatException e) {
131+ return WINDOWS_UNKNOWN;
132+ }
133+ } else {
134+ return WINDOWS_UNKNOWN;
135+ }
136+
137+ windowsVersionMap.put(osVersion, result);
138+ }
139+
140+ return result;
141+ }
142+ }
143+
144+ public static class WindowsVersion implements Comparable<WindowsVersion> {
145+ private final int major;
146+
147+ private final int minor;
148+
149+ private WindowsVersion(int major, int minor) {
150+ this.major = major;
151+ this.minor = minor;
152+ }
153+
154+ public int getMajor() {
155+ return major;
156+ }
157+
158+ public int getMinor() {
159+ return minor;
160+ }
161+
162+ public int compareTo(WindowsVersion o) {
163+ int result = major - o.getMajor();
164+
165+ if (result == 0) {
166+ result = minor - o.getMinor();
167+ }
168+
169+ return result;
170+ }
171+
172+ public boolean equals(Object obj) {
173+ return obj instanceof WindowsVersion && compareTo((WindowsVersion) obj) == 0;
174+ }
175+
176+ public int hashCode() {
177+ return 31 * major + minor;
178+ }
179+
180+ public String toString() {
181+ return major + "." + minor;
182+ }
183+ }
184+}