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/*
* Copyright (c) 2011, 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.javafx;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.io.File;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Properties;
public class PlatformUtil {
// NOTE: since this class can be initialized by application code in some
// cases, we must encapsulate all calls to System.getProperty("...") in
// a doPrivileged block except for standard JVM properties such as
// os.name, os.version, os.arch, java.vm.name, etc.
private static final String os = System.getProperty("os.name");
private static final String version = System.getProperty("os.version");
private static final boolean embedded;
private static final String embeddedType;
private static final boolean useEGL;
private static final boolean doEGLCompositing;
// a property used to denote a non-default impl for this host
private static String javafxPlatform;
static {
javafxPlatform = AccessController.doPrivileged((PrivilegedAction) () -> System.getProperty("javafx.platform"));
loadProperties();
embedded = AccessController.doPrivileged((PrivilegedAction) () -> Boolean.getBoolean("com.sun.javafx.isEmbedded"));
embeddedType = AccessController.doPrivileged((PrivilegedAction) () -> System.getProperty("embedded"));
useEGL = AccessController.doPrivileged((PrivilegedAction) () -> Boolean.getBoolean("use.egl"));
if (useEGL) {
doEGLCompositing = AccessController.doPrivileged((PrivilegedAction) () -> Boolean.getBoolean("doNativeComposite"));
} else
doEGLCompositing = false;
}
private static final boolean ANDROID = "android".equals(javafxPlatform) || "Dalvik".equals(System.getProperty("java.vm.name"));
private static final boolean WINDOWS = os.startsWith("Windows");
private static final boolean WINDOWS_VISTA_OR_LATER = WINDOWS && versionNumberGreaterThanOrEqualTo(6.0f);
private static final boolean WINDOWS_7_OR_LATER = WINDOWS && versionNumberGreaterThanOrEqualTo(6.1f);
private static final boolean MAC = os.startsWith("Mac");
private static final boolean LINUX = os.startsWith("Linux") && !ANDROID;
private static final boolean SOLARIS = os.startsWith("SunOS");
private static final boolean IOS = os.startsWith("iOS");
/**
* Utility method used to determine whether the version number as
* reported by system properties is greater than or equal to a given
* value.
*
* @param value The value to test against.
* @return false if the version number cannot be parsed as a float,
* otherwise the comparison against value.
*/
private static boolean versionNumberGreaterThanOrEqualTo(float value) {
try {
return Float.parseFloat(version) >= value;
} catch (Exception e) {
return false;
}
}
/**
* Returns true if the operating system is a form of Windows.
*/
public static boolean isWindows(){
return WINDOWS;
}
/**
* Returns true if the operating system is at least Windows Vista(v6.0).
*/
public static boolean isWinVistaOrLater(){
return WINDOWS_VISTA_OR_LATER;
}
/**
* Returns true if the operating system is at least Windows 7(v6.1).
*/
public static boolean isWin7OrLater(){
return WINDOWS_7_OR_LATER;
}
/**
* Returns true if the operating system is a form of Mac OS.
*/
public static boolean isMac(){
return MAC;
}
/**
* Returns true if the operating system is a form of Linux.
*/
public static boolean isLinux(){
return LINUX;
}
public static boolean useEGL() {
return useEGL;
}
public static boolean useEGLWindowComposition() {
return doEGLCompositing;
}
public static boolean useGLES2() {
String useGles2 = "false";
useGles2 =
AccessController.doPrivileged((PrivilegedAction) () -> System.getProperty("use.gles2"));
if ("true".equals(useGles2))
return true;
else
return false;
}
/**
* Returns true if the operating system is a form of Unix, including Linux.
*/
public static boolean isSolaris(){
return SOLARIS;
}
/**
* Returns true if the operating system is a form of Linux or Solaris
*/
public static boolean isUnix(){
return LINUX || SOLARIS;
}
/**
* Returns true if the platform is embedded.
*/
public static boolean isEmbedded() {
return embedded;
}
/**
* Returns a string with the embedded type - ie eglx11, eglfb, dfb or null.
*/
public static String getEmbeddedType() {
return embeddedType;
}
/**
* Returns true if the operating system is iOS
*/
public static boolean isIOS(){
return IOS;
}
private static void loadPropertiesFromFile(final File file) {
Properties p = new Properties();
try {
InputStream in = new FileInputStream(file);
p.load(in);
in.close();
} catch (IOException e) {
e.printStackTrace();
}
if (javafxPlatform == null) {
javafxPlatform = p.getProperty("javafx.platform");
}
String prefix = javafxPlatform + ".";
int prefixLength = prefix.length();
boolean foundPlatform = false;
for (Object o : p.keySet()) {
String key = (String) o;
if (key.startsWith(prefix)) {
foundPlatform = true;
String systemKey = key.substring(prefixLength);
if (System.getProperty(systemKey) == null) {
String value = p.getProperty(key);
System.setProperty(systemKey, value);
}
}
}
if (!foundPlatform) {
System.err.println(
"Warning: No settings found for javafx.platform='"
+ javafxPlatform + "'");
}
}
/** Returns the directory containing the JavaFX runtime, or null
* if the directory cannot be located
*/
private static File getRTDir() {
try {
String theClassFile = "PlatformUtil.class";
Class theClass = PlatformUtil.class;
URL url = theClass.getResource(theClassFile);
if (url == null) return null;
String classUrlString = url.toString();
if (!classUrlString.startsWith("jar:file:")
|| classUrlString.indexOf('!') == -1) {
return null;
}
// Strip out the "jar:" and everything after and including the "!"
String s = classUrlString.substring(4,
classUrlString.lastIndexOf('!'));
// Strip everything after the last "/" or "\" to get rid of the jar filename
int lastIndexOfSlash = Math.max(
s.lastIndexOf('/'), s.lastIndexOf('\\'));
return new File(new URL(s.substring(0, lastIndexOfSlash + 1)).getPath())
.getParentFile();
} catch (MalformedURLException e) {
return null;
}
}
private static void loadProperties() {
final String vmname = System.getProperty("java.vm.name");
final String arch = System.getProperty("os.arch");
if (! (javafxPlatform != null ||
(arch != null && arch.equals("arm")) ||
(vmname != null && vmname.indexOf("Embedded") > 0))) {
return;
}
AccessController.doPrivileged((PrivilegedAction) () -> {
final File rtDir = getRTDir();
final String propertyFilename = "javafx.platform.properties";
File rtProperties = new File(rtDir, propertyFilename);
// First look for javafx.platform.properties in the JavaFX runtime
// Then in the installation directory of the JRE
if (rtProperties.exists()) {
loadPropertiesFromFile(rtProperties);
return null;
}
String javaHome = System.getProperty("java.home");
File javaHomeProperties = new File(javaHome,
"lib" + File.separator
+ propertyFilename);
if (javaHomeProperties.exists()) {
loadPropertiesFromFile(javaHomeProperties);
return null;
}
String javafxRuntimePath = System.getProperty("javafx.runtime.path");
File javafxRuntimePathProperties = new File(javafxRuntimePath,
File.separator + propertyFilename);
if (javafxRuntimePathProperties.exists()) {
loadPropertiesFromFile(javafxRuntimePathProperties);
return null;
}
return null;
});
}
public static boolean isAndroid() {
return ANDROID;
}
}
