1*ef39d40dSAndrew Rist /************************************************************** 2cdf0e10cSrcweir * 3*ef39d40dSAndrew Rist * Licensed to the Apache Software Foundation (ASF) under one 4*ef39d40dSAndrew Rist * or more contributor license agreements. See the NOTICE file 5*ef39d40dSAndrew Rist * distributed with this work for additional information 6*ef39d40dSAndrew Rist * regarding copyright ownership. The ASF licenses this file 7*ef39d40dSAndrew Rist * to you under the Apache License, Version 2.0 (the 8*ef39d40dSAndrew Rist * "License"); you may not use this file except in compliance 9*ef39d40dSAndrew Rist * with the License. You may obtain a copy of the License at 10*ef39d40dSAndrew Rist * 11*ef39d40dSAndrew Rist * http://www.apache.org/licenses/LICENSE-2.0 12*ef39d40dSAndrew Rist * 13*ef39d40dSAndrew Rist * Unless required by applicable law or agreed to in writing, 14*ef39d40dSAndrew Rist * software distributed under the License is distributed on an 15*ef39d40dSAndrew Rist * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 16*ef39d40dSAndrew Rist * KIND, either express or implied. See the License for the 17*ef39d40dSAndrew Rist * specific language governing permissions and limitations 18*ef39d40dSAndrew Rist * under the License. 19*ef39d40dSAndrew Rist * 20*ef39d40dSAndrew Rist *************************************************************/ 21*ef39d40dSAndrew Rist 22*ef39d40dSAndrew Rist 23cdf0e10cSrcweir 24cdf0e10cSrcweir package lib ; 25cdf0e10cSrcweir 26cdf0e10cSrcweir import java.lang.reflect.Constructor; 27cdf0e10cSrcweir 28cdf0e10cSrcweir /** 29cdf0e10cSrcweir * @deprecated: moved to util package. 30cdf0e10cSrcweir */ 31cdf0e10cSrcweir public class DynamicClassLoader { 32cdf0e10cSrcweir 33cdf0e10cSrcweir /** 34cdf0e10cSrcweir * This method returns a class created by it's name 35cdf0e10cSrcweir * created by call to <code>Class.forName()</code>.<p> 36cdf0e10cSrcweir * This method must be overloaded if another loading 37cdf0e10cSrcweir * policy is required for Component and Interface 38cdf0e10cSrcweir * testing classes. 39cdf0e10cSrcweir */ forName(String className)40cdf0e10cSrcweir public static Class forName(String className) 41cdf0e10cSrcweir throws ClassNotFoundException { 42cdf0e10cSrcweir 43cdf0e10cSrcweir return Class.forName(className) ; 44cdf0e10cSrcweir } 45cdf0e10cSrcweir getInstance(String className)46cdf0e10cSrcweir public Object getInstance(String className) 47cdf0e10cSrcweir throws IllegalArgumentException { 48cdf0e10cSrcweir try { 49cdf0e10cSrcweir Class cls = DynamicClassLoader.forName(className); 50cdf0e10cSrcweir return cls.newInstance(); 51cdf0e10cSrcweir } catch ( ClassNotFoundException e ) { 52cdf0e10cSrcweir throw new IllegalArgumentException("Couldn't find " + className 53cdf0e10cSrcweir + " " + e); 54cdf0e10cSrcweir } catch ( IllegalAccessException e ) { 55cdf0e10cSrcweir throw new IllegalArgumentException("Couldn't access " + className 56cdf0e10cSrcweir + " " + e); 57cdf0e10cSrcweir } catch ( InstantiationException e ) { 58cdf0e10cSrcweir throw new IllegalArgumentException("Couldn't instantiate " + 59cdf0e10cSrcweir className + " " + e); 60cdf0e10cSrcweir } 61cdf0e10cSrcweir } 62cdf0e10cSrcweir getInstance(String className, Object[] ctorArgs)63cdf0e10cSrcweir public Object getInstance(String className, Object[] ctorArgs) 64cdf0e10cSrcweir throws IllegalArgumentException { 65cdf0e10cSrcweir try { 66cdf0e10cSrcweir Class cls = DynamicClassLoader.forName(className); 67cdf0e10cSrcweir Class[] ctorType = new Class[ctorArgs.length]; 68cdf0e10cSrcweir for(int i=0; i<ctorType.length; i++) { 69cdf0e10cSrcweir ctorType[i] = ctorArgs[i].getClass(); 70cdf0e10cSrcweir } 71cdf0e10cSrcweir Constructor ctor = cls.getConstructor(ctorType); 72cdf0e10cSrcweir return ctor.newInstance(ctorArgs); 73cdf0e10cSrcweir } catch ( ClassNotFoundException e ) { 74cdf0e10cSrcweir throw new IllegalArgumentException("Couldn't find " + className 75cdf0e10cSrcweir + " " + e); 76cdf0e10cSrcweir } catch ( IllegalAccessException e ) { 77cdf0e10cSrcweir throw new IllegalArgumentException("Couldn't access " + className 78cdf0e10cSrcweir + " " + e); 79cdf0e10cSrcweir } catch ( NoSuchMethodException e ) { 80cdf0e10cSrcweir throw new IllegalArgumentException("Couldn't find constructor for " + className 81cdf0e10cSrcweir + " " + e); 82cdf0e10cSrcweir } catch ( java.lang.reflect.InvocationTargetException e ) { 83cdf0e10cSrcweir throw new IllegalArgumentException("Couldn't invoke " + 84cdf0e10cSrcweir className + " " + e); 85cdf0e10cSrcweir } catch ( InstantiationException e ) { 86cdf0e10cSrcweir throw new IllegalArgumentException("Couldn't instantiate " + 87cdf0e10cSrcweir className + " " + e); 88cdf0e10cSrcweir } 89cdf0e10cSrcweir } 90cdf0e10cSrcweir } 91