1 /* 2 * Copyright (c) 2015, 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.javafx.util; 27 28 import java.io.InputStream; 29 import java.lang.reflect.InvocationTargetException; 30 import java.lang.reflect.Method; 31 import java.security.AccessController; 32 import java.security.PrivilegedAction; 33 34 // FIXME: JIGSAW -- remove this class when no longer used 35 public class ModuleHelper { 36 private static final Method getModuleMethod; 37 private static final Method getResourceAsStreamMethod; 38 39 private static final boolean verbose; 40 41 static { 42 verbose = AccessController.doPrivileged((PrivilegedAction<Boolean>) () -> 43 Boolean.getBoolean("javafx.verbose")); 44 45 if (verbose) { 46 System.err.println("" + ModuleHelper.class.getName() + " : <clinit>"); 47 } 48 Method mGetModule = null; 49 Method mGetResourceAsStream = null; 50 try { 51 mGetModule = Class.class.getMethod("getModule"); 52 Class<?> moduleClass = mGetModule.getReturnType(); 53 mGetResourceAsStream = moduleClass.getMethod("getResourceAsStream", String.class); 54 } catch (NoSuchMethodException e) { 55 // ignore 56 } 57 getModuleMethod = mGetModule; 58 getResourceAsStreamMethod = mGetResourceAsStream; 59 if (verbose) { 60 System.err.println("getModuleMethod = " + getModuleMethod); 61 System.err.println("getResourceAsStreamMethod = " + getResourceAsStreamMethod); 62 } 63 } 64 65 public static Object getModule(Class clazz) { 66 if (getModuleMethod != null) { 67 try { 68 return getModuleMethod.invoke(clazz); 69 } catch (IllegalAccessException | InvocationTargetException ex) { 70 throw new RuntimeException(ex); 71 } 72 } 73 return null; 74 } 75 76 public static InputStream getResourceAsStream(Object thisModule, String name) { 77 if (getResourceAsStreamMethod != null) { 78 try { 79 return (InputStream)getResourceAsStreamMethod.invoke(thisModule, name); 80 } catch (IllegalAccessException | InvocationTargetException ex) { 81 throw new RuntimeException(ex); 82 } 83 } 84 return null; 85 } 86 }