1 /* 2 * Copyright (c) 2013, 2014, 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 com.sun.glass.ui.monocle; 27 28 import com.sun.glass.ui.monocle.linux.LinuxSystem; 29 30 import java.security.AccessController; 31 import java.security.PrivilegedAction; 32 import java.util.Locale; 33 34 public abstract class NativePlatformFactory { 35 private static String platformName=""; 36 private static String factoryClassName=""; 37 private static long nativeDisplayType = -1L; 38 39 protected abstract boolean matches(); 40 41 protected abstract NativePlatform createNativePlatform(); 42 43 private static NativePlatform platform; 44 private static boolean initialized = false; 45 46 private static void determineNativePlatform(){ 47 String platformFactoryProperty = AccessController.doPrivileged(new PrivilegedAction<String>() { 48 @Override 49 public String run() { 50 return System.getProperty("monocle.platform", "MX6,OMAP,Linux,Headless"); 51 } 52 } ); 53 54 String[] platformFactories = platformFactoryProperty.split(","); 55 for (int i = 0; i < platformFactories.length; i++) { 56 String factoryName = platformFactories[i].trim(); 57 if (factoryName.contains(".")) { 58 factoryClassName = factoryName; 59 platformName = factoryClassName.substring(factoryClassName.lastIndexOf(".", 0)); 60 } else { 61 platformName = factoryName.toLowerCase(Locale.ROOT); 62 factoryClassName = "com.sun.glass.ui.monocle." + platformName + "." + factoryName + "PlatformFactory"; 63 } 64 try { 65 NativePlatformFactory npf = (NativePlatformFactory) Class.forName(factoryClassName).newInstance(); 66 if (npf.matches()) { 67 initialized = true; 68 return; 69 } 70 } catch (Exception e) { 71 e.printStackTrace(); 72 } 73 } 74 initialized = true; 75 } 76 77 public static synchronized String getNativePlatformName() { 78 if (!initialized) { 79 determineNativePlatform(); 80 } 81 return platformName; 82 } 83 84 public static synchronized NativePlatform getNativePlatform() { 85 if (!initialized) { 86 determineNativePlatform(); 87 } 88 if (platform == null) { 89 try { 90 NativePlatformFactory npf = (NativePlatformFactory) Class.forName(factoryClassName).newInstance(); 91 if (npf.matches()) { 92 platform = npf.createNativePlatform(); 93 return platform; 94 } 95 } catch (Exception e) { 96 e.printStackTrace(); 97 } 98 99 throw new UnsupportedOperationException("Cannot load a native platform: '" + platformName + "'"); 100 } 101 return platform; 102 } 103 104 }