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- /*
- * Javassist, a Java-bytecode translator toolkit.
- * Copyright (C) 2004 Bill Burke. All Rights Reserved.
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. Alternatively, the contents of this file may be used under
- * the terms of the GNU Lesser General Public License Version 2.1 or later,
- * or the Apache License Version 2.0.
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- */
- package javassist.bytecode.annotation;
-
- import javassist.ClassPool;
- import javassist.bytecode.ConstPool;
- import java.io.IOException;
- import java.lang.reflect.Array;
- import java.lang.reflect.Method;
-
- /**
- * Array member.
- *
- * @author <a href="mailto:bill@jboss.org">Bill Burke</a>
- * @author Shigeru Chiba
- */
- public class ArrayMemberValue extends MemberValue {
- MemberValue type;
- MemberValue[] values;
-
- /**
- * Constructs an array. The initial value or type are not specified.
- */
- public ArrayMemberValue(ConstPool cp) {
- super('[', cp);
- type = null;
- values = null;
- }
-
- /**
- * Constructs an array. The initial value is not specified.
- *
- * @param t the type of the array elements.
- */
- public ArrayMemberValue(MemberValue t, ConstPool cp) {
- super('[', cp);
- type = t;
- values = null;
- }
-
- Object getValue(ClassLoader cl, ClassPool cp, Method method)
- throws ClassNotFoundException
- {
- if (values == null)
- throw new ClassNotFoundException(
- "no array elements found: " + method.getName());
-
- int size = values.length;
- Class clazz;
- if (type == null) {
- clazz = method.getReturnType().getComponentType();
- if (clazz == null || size > 0)
- throw new ClassNotFoundException("broken array type: "
- + method.getName());
- }
- else
- clazz = type.getType(cl);
-
- Object a = Array.newInstance(clazz, size);
- for (int i = 0; i < size; i++)
- Array.set(a, i, values[i].getValue(cl, cp, method));
-
- return a;
- }
-
- Class getType(ClassLoader cl) throws ClassNotFoundException {
- if (type == null)
- throw new ClassNotFoundException("no array type specified");
-
- Object a = Array.newInstance(type.getType(cl), 0);
- return a.getClass();
- }
-
- /**
- * Obtains the type of the elements.
- *
- * @return null if the type is not specified.
- */
- public MemberValue getType() {
- return type;
- }
-
- /**
- * Obtains the elements of the array.
- */
- public MemberValue[] getValue() {
- return values;
- }
-
- /**
- * Sets the elements of the array.
- */
- public void setValue(MemberValue[] elements) {
- values = elements;
- if (elements != null && elements.length > 0)
- type = elements[0];
- }
-
- /**
- * Obtains the string representation of this object.
- */
- public String toString() {
- StringBuffer buf = new StringBuffer("{");
- if (values != null) {
- for (int i = 0; i < values.length; i++) {
- buf.append(values[i].toString());
- if (i + 1 < values.length)
- buf.append(", ");
- }
- }
-
- buf.append("}");
- return buf.toString();
- }
-
- /**
- * Writes the value.
- */
- public void write(AnnotationsWriter writer) throws IOException {
- int num = values == null ? 0 : values.length;
- writer.arrayValue(num);
- for (int i = 0; i < num; ++i)
- values[i].write(writer);
- }
-
- /**
- * Accepts a visitor.
- */
- public void accept(MemberValueVisitor visitor) {
- visitor.visitArrayMemberValue(this);
- }
- }
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