/*
* #%L
* gitools-core
* %%
* Copyright (C) 2013 Universitat Pompeu Fabra - Biomedical Genomics group
* %%
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program. If not, see
* <http://www.gnu.org/licenses/gpl-3.0.html>.
* #L%
*/
package org.gitools.ui.platform.os;
public class SystemInfo {
public static final String OS_NAME = System.getProperty("os.name");
public static final String OS_VERSION = System.getProperty("os.version").toLowerCase();
public static final String JAVA_RUNTIME_VERSION = System.getProperty("java.runtime.version");
protected static final String _OS_NAME = OS_NAME.toLowerCase();
public static final boolean isWindows = _OS_NAME.startsWith("windows");
public static final boolean isOS2 = _OS_NAME.startsWith("os/2") || _OS_NAME.startsWith("os2");
public static final boolean isMac = _OS_NAME.startsWith("mac");
public static final boolean isLinux = _OS_NAME.startsWith("linux");
public static final boolean isUnix = !isWindows && !isOS2;
public static final boolean isFileSystemCaseSensitive = isUnix && !isMac;
public static final boolean isXWindow = isUnix && !isMac;
public static final boolean isMacOSLeopard = isMac && isOsVersionAtLeast("10.5");
public static final boolean isMacOSLion = isMac && isOsVersionAtLeast("10.7");
public static final boolean isWinVistaOrNewer = isWindows && isOsVersionAtLeast("6.0");
public static boolean isJavaVersionAtLeast(String v) {
return compareVersionNumbers(JAVA_RUNTIME_VERSION, v) >= 0;
}
public static boolean isOsVersionAtLeast(String version) {
return compareVersionNumbers(OS_VERSION, version) >= 0;
}
public static int compareVersionNumbers(String v1, String v2) {
if (v1 == null && v2 == null) {
return 0;
}
if (v1 == null) {
return -1;
}
if (v2 == null) {
return 1;
}
String[] part1 = v1.split("[\\.\\_\\-]");
String[] part2 = v2.split("[\\.\\_\\-]");
int idx = 0;
for (; idx < part1.length && idx < part2.length; idx++) {
String p1 = part1[idx];
String p2 = part2[idx];
int cmp;
if (p1.matches("\\d+") && p2.matches("\\d+")) {
cmp = new Integer(p1).compareTo(new Integer(p2));
} else {
cmp = part1[idx].compareTo(part2[idx]);
}
if (cmp != 0) return cmp;
}
if (part1.length == part2.length) {
return 0;
} else {
boolean left = part1.length > idx;
String[] parts = left ? part1 : part2;
for (; idx < parts.length; idx++) {
String p = parts[idx];
int cmp;
if (p.matches("\\d+")) {
cmp = new Integer(p).compareTo(0);
} else {
cmp = 1;
}
if (cmp != 0) return left ? cmp : -cmp;
}
return 0;
}
}
}