1 /*
   2  * Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
   3  * 
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * The contents of this file are subject to the terms of either the Universal Permissive License
   7  * v 1.0 as shown at http://oss.oracle.com/licenses/upl
   8  *
   9  * or the following license:
  10  *
  11  * Redistribution and use in source and binary forms, with or without modification, are permitted
  12  * provided that the following conditions are met:
  13  * 
  14  * 1. Redistributions of source code must retain the above copyright notice, this list of conditions
  15  * and the following disclaimer.
  16  * 
  17  * 2. Redistributions in binary form must reproduce the above copyright notice, this list of
  18  * conditions and the following disclaimer in the documentation and/or other materials provided with
  19  * the distribution.
  20  * 
  21  * 3. Neither the name of the copyright holder nor the names of its contributors may be used to
  22  * endorse or promote products derived from this software without specific prior written permission.
  23  * 
  24  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
  25  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
  26  * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
  27  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  29  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  30  * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY
  31  * WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32  */
  33 package org.openjdk.jmc.agent.test.util;
  34 
  35 import java.util.Arrays;
  36 
  37 import org.objectweb.asm.AnnotationVisitor;
  38 import org.objectweb.asm.Attribute;
  39 import org.objectweb.asm.ClassVisitor;
  40 import org.objectweb.asm.FieldVisitor;
  41 import org.objectweb.asm.MethodVisitor;
  42 import org.objectweb.asm.Opcodes;
  43 
  44 public class TestVisitor extends ClassVisitor {
  45 
  46         public TestVisitor() {
  47                 super(Opcodes.ASM5);
  48         }
  49 
  50         @Override
  51         public void visit(int version, int access, String name, String signature, String superName, String[] interfaces) {
  52                 System.out.println("Visiting class: " + name); //$NON-NLS-1$
  53                 System.out.println("Class Major Version: " + version); //$NON-NLS-1$
  54                 System.out.println("Super class: " + superName); //$NON-NLS-1$
  55                 System.out.println("Signature: " + signature); //$NON-NLS-1$
  56                 System.out.println("Interfaces: " + Arrays.toString(interfaces)); //$NON-NLS-1$
  57 
  58                 super.visit(version, access, name, signature, superName, interfaces);
  59         }
  60 
  61         @Override
  62         public void visitOuterClass(String owner, String name, String desc) {
  63                 System.out.println("Outer class: " + owner); //$NON-NLS-1$
  64                 super.visitOuterClass(owner, name, desc);
  65         }
  66 
  67         @Override
  68         public AnnotationVisitor visitAnnotation(String desc, boolean visible) {
  69                 System.out.println("Annotation: " + desc); //$NON-NLS-1$
  70                 return super.visitAnnotation(desc, visible);
  71         }
  72 
  73         @Override
  74         public void visitAttribute(Attribute attr) {
  75                 System.out.println("Class Attribute: " + attr.type); //$NON-NLS-1$
  76                 super.visitAttribute(attr);
  77         }
  78 
  79         @Override
  80         public void visitInnerClass(String name, String outerName, String innerName, int access) {
  81                 System.out.println("Inner Class: " + innerName + " defined in " + outerName); //$NON-NLS-1$ //$NON-NLS-2$
  82                 super.visitInnerClass(name, outerName, innerName, access);
  83         }
  84 
  85         @Override
  86         public FieldVisitor visitField(int access, String name, String desc, String signature, Object value) {
  87                 System.out.println("Field: " + name + " " + desc + " value:" + value); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
  88                 return super.visitField(access, name, desc, signature, value);
  89         }
  90 
  91         @Override
  92         public void visitEnd() {
  93                 System.out.println("Visit ended"); //$NON-NLS-1$
  94                 super.visitEnd();
  95         }
  96 
  97         @Override
  98         public MethodVisitor visitMethod(
  99                 int access, String name, String descriptor, String signature, String[] exceptions) {
 100                 System.out.println("Method: " + name + descriptor); //$NON-NLS-1$
 101                 return super.visitMethod(access, name, descriptor, signature, exceptions);
 102         }
 103 
 104         @Override
 105         public void visitSource(String source, String debug) {
 106                 System.out.println("Source: " + source); //$NON-NLS-1$
 107                 super.visitSource(source, debug);
 108         }
 109 
 110 }