Java tutorial
/* * Copyright 2008 Ayman Al-Sairafi ayman.alsairafi@gmail.com * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License * at http://www.apache.org/licenses/LICENSE-2.0 * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ //package jsyntaxpane.util; import java.io.File; import java.io.IOException; import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Member; import java.lang.reflect.Method; import java.lang.reflect.Modifier; import java.net.URL; import java.util.ArrayList; import java.util.Enumeration; import java.util.HashMap; import java.util.List; import java.util.logging.Level; import java.util.logging.Logger; /** * Reflection Utility methods * * @author Ayman Al-Sairafi */ public class ReflectUtils { /** * Gets an array of all Constructor calls for the given class * @param aClass * @return */ public static String[] getConstructorCalls(Class aClass) { Constructor[] constructors = aClass.getConstructors(); String[] cons = new String[constructors.length]; int i = 0; for (Constructor c : constructors) { cons[i++] = getJavaCallString(c); } return cons; } /** * Convert the constructor to a Java Code String * (arguments are replaced by the simple types) * @param c Constructor * @return */ public static String getJavaCallString(Constructor c) { StringBuilder call = new StringBuilder(); call.append(c.getDeclaringClass().getSimpleName()); addParamsString(call, c.getParameterTypes()); return call.toString(); } /** * Adds the class SimpleNames, comma sepearated and surrounded by paranthesis to the * call StringBuffer * @param call * @param params * @return */ public static StringBuilder addParamsString(StringBuilder call, Class[] params) { call.append("("); boolean firstArg = true; for (Class arg : params) { if (firstArg) { firstArg = false; } else { call.append(", "); } call.append(arg.getSimpleName()); } call.append(")"); return call; } }