01: /***
02: * ASM Guide
03: * Copyright (c) 2007 Eric Bruneton
04: * All rights reserved.
05: *
06: * Redistribution and use in source and binary forms, with or without
07: * modification, are permitted provided that the following conditions
08: * are met:
09: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions and the following disclaimer.
11: * 2. Redistributions in binary form must reproduce the above copyright
12: * notice, this list of conditions and the following disclaimer in the
13: * documentation and/or other materials provided with the distribution.
14: * 3. Neither the name of the copyright holders nor the names of its
15: * contributors may be used to endorse or promote products derived from
16: * this software without specific prior written permission.
17: *
18: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
19: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
22: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
23: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
24: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
25: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
26: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
27: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
28: * THE POSSIBILITY OF SUCH DAMAGE.
29: */package ch8.sec2;
30:
31: import java.util.Iterator;
32:
33: import org.objectweb.asm.tree.AnnotationNode;
34: import org.objectweb.asm.tree.ClassNode;
35:
36: import ch5.sec1.ClassTransformer;
37:
38: /**
39: * ASM Guide example class.
40: *
41: * @author Eric Bruneton
42: */
43: public class RemoveAnnotationTransformer extends ClassTransformer {
44:
45: private String annotationDesc;
46:
47: public RemoveAnnotationTransformer(ClassTransformer ct,
48: String annotationDesc) {
49: super (ct);
50: this .annotationDesc = annotationDesc;
51: }
52:
53: public void transform(ClassNode cn) {
54: if (cn.visibleAnnotations != null) {
55: removeAnnotation(cn.visibleAnnotations.iterator());
56: }
57: if (cn.invisibleAnnotations != null) {
58: removeAnnotation(cn.invisibleAnnotations.iterator());
59: }
60: super .transform(cn);
61: }
62:
63: private void removeAnnotation(Iterator i) {
64: while (i.hasNext()) {
65: AnnotationNode an = (AnnotationNode) i.next();
66: if (annotationDesc.equals(an.desc)) {
67: i.remove();
68: }
69: }
70: }
71: }
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