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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 javassist.bytecode.Descriptor;
-
- import java.io.IOException;
- import java.lang.reflect.Array;
- import java.lang.reflect.Method;
-
- /**
- * The value of a member declared in an annotation.
- *
- * @see Annotation#getMemberValue(String)
- * @author <a href="mailto:bill@jboss.org">Bill Burke</a>
- * @author Shigeru Chiba
- */
- public abstract class MemberValue {
- ConstPool cp;
- char tag;
-
- MemberValue(char tag, ConstPool cp) {
- this.cp = cp;
- this.tag = tag;
- }
-
- /**
- * Returns the value. If the value type is a primitive type, the
- * returned value is boxed.
- */
- abstract Object getValue(ClassLoader cl, ClassPool cp, Method m)
- throws ClassNotFoundException;
-
- abstract Class getType(ClassLoader cl) throws ClassNotFoundException;
-
- static Class loadClass(ClassLoader cl, String classname)
- throws ClassNotFoundException, NoSuchClassError
- {
- try {
- return Class.forName(convertFromArray(classname), true, cl);
- }
- catch (LinkageError e) {
- throw new NoSuchClassError(classname, e);
- }
- }
-
- private static String convertFromArray(String classname)
- {
- int index = classname.indexOf("[]");
- if (index != -1) {
- String rawType = classname.substring(0, index);
- StringBuffer sb = new StringBuffer(Descriptor.of(rawType));
- while (index != -1) {
- sb.insert(0, "[");
- index = classname.indexOf("[]", index + 1);
- }
- return sb.toString().replace('/', '.');
- }
- return classname;
- }
-
- /**
- * Accepts a visitor.
- */
- public abstract void accept(MemberValueVisitor visitor);
-
- /**
- * Writes the value.
- */
- public abstract void write(AnnotationsWriter w) throws IOException;
- }
-
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