169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/* 269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Javassist, a Java-bytecode translator toolkit. 369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Copyright (C) 2004 Bill Burke. All Rights Reserved. 469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * The contents of this file are subject to the Mozilla Public License Version 669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 1.1 (the "License"); you may not use this file except in compliance with 769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the License. Alternatively, the contents of this file may be used under 869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * the terms of the GNU Lesser General Public License Version 2.1 or later. 969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 1069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Software distributed under the License is distributed on an "AS IS" basis, 1169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License 1269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * for the specific language governing rights and limitations under the 1369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * License. 1469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 1569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpackage javassist.bytecode.annotation; 1669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 1769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport javassist.ClassPool; 1869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport javassist.bytecode.ConstPool; 1969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.io.IOException; 2069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.lang.reflect.Array; 2169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalimport java.lang.reflect.Method; 2269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 2369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal/** 2469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Array member. 2569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 2669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @author <a href="mailto:bill@jboss.org">Bill Burke</a> 2769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @author Shigeru Chiba 2869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 2969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigalpublic class ArrayMemberValue extends MemberValue { 3069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal MemberValue type; 3169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal MemberValue[] values; 3269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 3369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 3469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Constructs an array. The initial value or type are not specified. 3569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 3669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public ArrayMemberValue(ConstPool cp) { 3769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal super('[', cp); 3869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal type = null; 3969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal values = null; 4069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 4169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 4269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 4369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Constructs an array. The initial value is not specified. 4469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 4569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @param t the type of the array elements. 4669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 4769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public ArrayMemberValue(MemberValue t, ConstPool cp) { 4869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal super('[', cp); 4969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal type = t; 5069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal values = null; 5169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 5269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 5369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal Object getValue(ClassLoader cl, ClassPool cp, Method method) 5469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal throws ClassNotFoundException 5569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal { 5669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal if (values == null) 5769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal throw new ClassNotFoundException( 5869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal "no array elements found: " + method.getName()); 5969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 6069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal int size = values.length; 6169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal Class clazz; 6269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal if (type == null) { 6369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal clazz = method.getReturnType().getComponentType(); 6469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal if (clazz == null || size > 0) 6569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal throw new ClassNotFoundException("broken array type: " 6669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal + method.getName()); 6769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 6869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal else 6969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal clazz = type.getType(cl); 7069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 7169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal Object a = Array.newInstance(clazz, size); 7269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal for (int i = 0; i < size; i++) 7369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal Array.set(a, i, values[i].getValue(cl, cp, method)); 7469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 7569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return a; 7669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 7769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 7869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal Class getType(ClassLoader cl) throws ClassNotFoundException { 7969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal if (type == null) 8069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal throw new ClassNotFoundException("no array type specified"); 8169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 8269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal Object a = Array.newInstance(type.getType(cl), 0); 8369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return a.getClass(); 8469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 8569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 8669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 8769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Obtains the type of the elements. 8869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * 8969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * @return null if the type is not specified. 9069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 9169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public MemberValue getType() { 9269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return type; 9369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 9469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 9569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 9669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Obtains the elements of the array. 9769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 9869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public MemberValue[] getValue() { 9969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return values; 10069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 10169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 10269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 10369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Sets the elements of the array. 10469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 10569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public void setValue(MemberValue[] elements) { 10669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal values = elements; 10769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal if (elements != null && elements.length > 0) 10869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal type = elements[0]; 10969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 11069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 11169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 11269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Obtains the string representation of this object. 11369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 11469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public String toString() { 11569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal StringBuffer buf = new StringBuffer("{"); 11669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal if (values != null) { 11769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal for (int i = 0; i < values.length; i++) { 11869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal buf.append(values[i].toString()); 11969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal if (i + 1 < values.length) 12069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal buf.append(", "); 12169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 12269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 12369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 12469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal buf.append("}"); 12569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal return buf.toString(); 12669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 12769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 12869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 12969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Writes the value. 13069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 13169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public void write(AnnotationsWriter writer) throws IOException { 13269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal int num = values.length; 13369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal writer.arrayValue(num); 13469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal for (int i = 0; i < num; ++i) 13569e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal values[i].write(writer); 13669e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 13769e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal 13869e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal /** 13969e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal * Accepts a visitor. 14069e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal */ 14169e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal public void accept(MemberValueVisitor visitor) { 14269e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal visitor.visitArrayMemberValue(this); 14369e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal } 14469e17611504376e4d4603925f8528dfc890fd2c6Luis Sigal} 145