1 /******************************************************************************* 2 * Copyright 2011 See AUTHORS file. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 ******************************************************************************/ 16 17 package com.badlogic.gwtref.client; 18 19 import java.util.Collection; 20 21 import com.google.gwt.core.client.GWT; 22 23 public class ReflectionCache { 24 private static IReflectionCache instance = GWT.create(IReflectionCache.class); 25 26 public static Type forName (String name) throws ClassNotFoundException { 27 Type type = instance.forName(convert(name)); 28 if (type == null) { 29 throw new RuntimeException("Couldn't find Type for class '" + name + "'"); 30 } 31 return type; 32 } 33 34 public static Type getType (Class clazz) { 35 if (clazz == null) return null; 36 Type type = instance.forName(convert(clazz.getName())); 37 if (type == null) { 38 throw new RuntimeException("Couldn't find Type for class '" + clazz.getName() + "'"); 39 } 40 return type; 41 } 42 43 private static String convert (String className) { 44 if (className.startsWith("[")) { 45 int dimensions = 0; 46 char c = className.charAt(0); 47 String suffix = ""; 48 while (c == '[') { 49 dimensions++; 50 suffix += "[]"; 51 c = className.charAt(dimensions); 52 } 53 char t = className.charAt(dimensions); 54 switch (t) { 55 case 'Z': 56 return "boolean" + suffix; 57 case 'B': 58 return "byte" + suffix; 59 case 'C': 60 return "char" + suffix; 61 case 'L': 62 return className.substring(dimensions + 1, className.length() - 1).replace('$', '.') + suffix; 63 case 'D': 64 return "double" + suffix; 65 case 'F': 66 return "float" + suffix; 67 case 'I': 68 return "int" + suffix; 69 case 'J': 70 return "long" + suffix; 71 case 'S': 72 return "short" + suffix; 73 default: 74 throw new IllegalArgumentException("Couldn't transform '" + className + "' to qualified source name"); 75 } 76 } else { 77 return className.replace('$', '.'); 78 } 79 } 80 81 public static Object newArray (Class componentType, int size) { 82 return instance.newArray(getType(componentType), size); 83 } 84 85 public static Object getFieldValue (Field field, Object obj) throws IllegalAccessException { 86 return instance.get(field, obj); 87 } 88 89 public static void setFieldValue (Field field, Object obj, Object value) throws IllegalAccessException { 90 instance.set(field, obj, value); 91 } 92 93 public static Object invoke (Method method, Object obj, Object[] params) { 94 return instance.invoke(method, obj, params); 95 } 96 97 public static int getArrayLength (Type type, Object obj) { 98 return instance.getArrayLength(type, obj); 99 } 100 101 public static Object getArrayElement (Type type, Object obj, int i) { 102 return instance.getArrayElement(type, obj, i); 103 } 104 105 public static void setArrayElement (Type type, Object obj, int i, Object value) { 106 instance.setArrayElement(type, obj, i, value); 107 } 108 } 109
