/***
* ASM Guide
* Copyright (c) 2007 Eric Bruneton
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
package ch4.sec2;
import static org.objectweb.asm.Opcodes.V1_5;
import org.objectweb.asm.AnnotationVisitor;
import org.objectweb.asm.ClassAdapter;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.FieldVisitor;
import org.objectweb.asm.MethodVisitor;
/**
* ASM Guide example class.
*
* @author Eric Bruneton
*/
public class AddAnnotationAdapter extends ClassAdapter {
private String annotationDesc;
private boolean isAnnotationPresent;
public AddAnnotationAdapter(ClassVisitor cv, String annotationDesc) {
super(cv);
this.annotationDesc = annotationDesc;
}
public void visit(int version, int access, String name,
String signature, String superName, String[] interfaces) {
int v = (version & 0xFF) < V1_5 ? V1_5 : version;
cv.visit(v, access, name, signature, superName, interfaces);
}
public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
if (visible && desc.equals(annotationDesc)) {
isAnnotationPresent = true;
}
return cv.visitAnnotation(desc, visible);
}
public void visitInnerClass(String name, String outerName,
String innerName, int access) {
addAnnotation();
cv.visitInnerClass(name, outerName, innerName, access);
}
public FieldVisitor visitField(int access, String name, String desc,
String signature, Object value) {
addAnnotation();
return cv.visitField(access, name, desc, signature, value);
}
public MethodVisitor visitMethod(int access, String name,
String desc, String signature, String[] exceptions) {
addAnnotation();
return cv.visitMethod(access, name, desc, signature, exceptions);
}
public void visitEnd() {
addAnnotation();
cv.visitEnd();
}
private void addAnnotation() {
if (!isAnnotationPresent) {
AnnotationVisitor av = cv.visitAnnotation(annotationDesc, true);
if (av != null) {
av.visitEnd();
}
isAnnotationPresent = true;
}
}
}