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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 java.io.IOException;
import java.lang.reflect.Method;
import java.util.Map;
import javassist.ClassPool;
import javassist.bytecode.BadBytecode;
import javassist.bytecode.ConstPool;
import javassist.bytecode.Descriptor;
import javassist.bytecode.SignatureAttribute;
/**
* Class value.
*
* @author <a href="mailto:bill@jboss.org">Bill Burke</a>
* @author Shigeru Chiba
*/
public class ClassMemberValue extends MemberValue {
int valueIndex;
/**
* Constructs a class value. The initial value is specified
* by the constant pool entry at the given index.
*
* @param index the index of a CONSTANT_Utf8_info structure.
*/
public ClassMemberValue(int index, ConstPool cp) {
super('c', cp);
this.valueIndex = index;
}
/**
* Constructs a class value.
*
* @param className the initial value.
*/
public ClassMemberValue(String className, ConstPool cp) {
super('c', cp);
setValue(className);
}
/**
* Constructs a class value.
* The initial value is java.lang.Class.
*/
public ClassMemberValue(ConstPool cp) {
super('c', cp);
setValue("java.lang.Class");
}
@Override
Object getValue(ClassLoader cl, ClassPool cp, Method m)
throws ClassNotFoundException {
final String classname = getValue();
if (classname.equals("void"))
return void.class;
else if (classname.equals("int"))
return int.class;
else if (classname.equals("byte"))
return byte.class;
else if (classname.equals("long"))
return long.class;
else if (classname.equals("double"))
return double.class;
else if (classname.equals("float"))
return float.class;
else if (classname.equals("char"))
return char.class;
else if (classname.equals("short"))
return short.class;
else if (classname.equals("boolean"))
return boolean.class;
else
return loadClass(cl, classname);
}
@Override
Class<?> getType(ClassLoader cl) throws ClassNotFoundException {
return loadClass(cl, "java.lang.Class");
}
@Override
public void renameClass(String oldname, String newname) {
String value = cp.getUtf8Info(valueIndex);
String newValue = Descriptor.rename(value, oldname, newname);
setValue(Descriptor.toClassName(newValue));
}
@Override
public void renameClass(Map<String, String> classnames) {
String value = cp.getUtf8Info(valueIndex);
String newValue = Descriptor.rename(value, classnames);
setValue(Descriptor.toClassName(newValue));
}
/**
* Obtains the value of the member.
*
* @return fully-qualified class name.
*/
public String getValue() {
String v = cp.getUtf8Info(valueIndex);
try {
return SignatureAttribute.toTypeSignature(v).jvmTypeName();
} catch (BadBytecode e) {
throw new RuntimeException(e);
}
}
/**
* Sets the value of the member.
*
* @param newClassName fully-qualified class name.
*/
public void setValue(String newClassName) {
String setTo = Descriptor.of(newClassName);
valueIndex = cp.addUtf8Info(setTo);
}
/**
* Obtains the string representation of this object.
*/
@Override
public String toString() {
return getValue().replace('$', '.') + ".class";
}
/**
* Writes the value.
*/
@Override
public void write(AnnotationsWriter writer) throws IOException {
writer.classInfoIndex(cp.getUtf8Info(valueIndex));
}
/**
* Accepts a visitor.
*/
@Override
public void accept(MemberValueVisitor visitor) {
visitor.visitClassMemberValue(this);
}
}
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