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 java.security.AccessController; 29 import java.security.PrivilegedAction; 30 import java.util.Locale; 31 32 public abstract class NativePlatformFactory { 33 34 protected abstract boolean matches(); 35 36 protected abstract NativePlatform createNativePlatform(); 37 38 private static NativePlatform platform; 39 public static synchronized NativePlatform getNativePlatform() { 40 if (platform == null) { 41 String platformFactoryProperty = 42 AccessController.doPrivileged(new PrivilegedAction<String>() { 43 @Override 44 public String run() { 45 return System.getProperty("monocle.platform", 46 "MX6,OMAP,Linux,Headless"); 47 } 48 }); 49 String[] platformFactories = platformFactoryProperty.split(","); 50 for (int i = 0; i < platformFactories.length; i++) { 51 String factoryName = platformFactories[i].trim(); 52 String factoryClassName; 53 if (factoryName.contains(".")) { 54 factoryClassName = factoryName; 55 } else { 56 factoryClassName = "com.sun.glass.ui.monocle." 57 + factoryName.toLowerCase(Locale.ROOT) 58 + "." + factoryName + "PlatformFactory"; 59 } 60 try { 61 NativePlatformFactory npf = (NativePlatformFactory) 62 Class.forName(factoryClassName) 63 .newInstance(); 64 if (npf.matches()) { 65 platform = npf.createNativePlatform(); 66 return platform; 67 } 68 } catch (Exception e) { 69 e.printStackTrace(); 70 } 71 } 72 throw new UnsupportedOperationException( 73 "Cannot load a native platform from: '" 74 + platformFactoryProperty + "'"); 75 } 76 return platform; 77 } 78 79 }