Examples of org.objectweb.asm.ClassReader.accept()

org.objectweb.asm.ClassReader.accept()
Makes the given visitor visit the Java class of this {@link ClassReader ClassReader}. This class is the one specified in the constructor (see {@link #ClassReader(byte[]) ClassReader}). @param classVisitor the visitor that must visit this class. @param skipDebug true if the debug information of the class mustnot be visited. In this case the {@link CodeVisitor#visitLocalVariable visitLocalVariable} and {@link CodeVisitor#visitLineNumber visitLineNumber} methods will not be called.

    throws Exception
  {
    ClassReader cr = new ClassReader(is);
    ClassWriter cw = new ClassWriter(compute);
    ClassAdapter ca = new ClassAdapter(cw);
    cr.accept(ca, skipDebug);
    return cw.toByteArray();
  }


  byte[] counterAdaptClass (final InputStream is, final String name)
    throws Exception

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    throws Exception
  {
    ClassReader cr = new ClassReader(is);
    ClassWriter cw = new ClassWriter(false);
    ClassAdapter ca = new CounterClassAdapter(cw);
    cr.accept(ca, false);
    return cw.toByteArray();
  }


  static class CounterClassAdapter extends ClassAdapter implements Constants {

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  public static void main (final String args[]) throws Exception {
    // loads the original class and adapts it
    ClassReader cr = new ClassReader("CommentAttribute");
    ClassWriter cw = new ClassWriter(false);
    ClassVisitor cv = new AddCommentClassAdapter(cw);
    cr.accept(cv, new Attribute[] { new CommentAttribute("") }, false);
    byte[] b = cw.toByteArray();


    // stores the adapted class on disk
    FileOutputStream fos = new FileOutputStream("CommentAttribute.class.new");
    fos.write(b);

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    fos.close();


    // "disassembles" the adapted class
    cr = new ClassReader(b);
    cv = new TraceClassVisitor(null, new PrintWriter(System.out));
    cr.accept(cv, new Attribute[] { new CommentAttribute("") }, false);
  }
}


class AddCommentClassAdapter extends ClassAdapter implements Constants {

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        cr.accept( new TraceClassVisitor( null, new PrintWriter( os)), false);
      */
      boolean singleInputDocument = inRepresentation==SINGLE_XML;
      if( inRepresentation==BYTECODE) {  // read bytecode and process it with handler
        ClassReader cr = new ClassReader( readEntry( zis, ze));
        cr.accept( new SAXClassAdapter( handler, singleInputDocument), false);
      
      } else {  // read XML and process it with handler  
        XMLReader reader = XMLReaderFactory.createXMLReader();
        reader.setContentHandler( handler);        
        reader.parse( new InputSource( singleInputDocument ?

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    // TransformerHandler handler = saxtf.newTransformerHandler( templates);
    TransformerHandler handler = saxtf.newTransformerHandler();
    handler.setResult( new SAXResult( new ASMContentHandler( bos, false)));
    handler.startDocument();
    ClassReader cr = new ClassReader( classData);
    cr.accept( new SAXClassAdapter( handler, false), false);
    handler.endDocument();
    
    byte[] newData = bos.toByteArray();


    try {

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  }
  
  private static void traceBytecode( byte[] classData, PrintWriter pw) {
    ClassReader cr = new ClassReader( classData);
    // cr.accept( new TraceClassVisitor( cw, new PrintWriter( System.out)), 
    cr.accept( new TraceClassVisitor( null, pw), false);
  }


  private static byte[] getCode( InputStream is) throws IOException {
    ByteArrayOutputStream bos = new ByteArrayOutputStream();
    byte[] buff = new byte[ 1024];

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    // adapts the class on the fly
    try {
      ClassReader cr = new ClassReader(is);
      ClassWriter cw = new ClassWriter(false);
      ClassVisitor cv = new TraceFieldClassAdapter(cw);
      cr.accept(cv, false);
      b = cw.toByteArray();
    } catch (Exception e) {
      throw new ClassNotFoundException(name, e);
    }

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    } else {
      cr = new ClassReader(args[0]);
    }
    
    TreeClassAdapter ca = new TreeClassAdapter(null);
    cr.accept(new CheckClassAdapter(ca), true);
    
    List methods = ca.classNode.methods;
    for (int i = 0; i < methods.size(); ++i) {
      MethodNode method = (MethodNode)methods.get(i);
      if (method.instructions.size() > 0) {

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    if (args[i].endsWith(".class")) {
      cr = new ClassReader(new FileInputStream(args[i]));
    } else {
      cr = new ClassReader(args[i]);
    }
    cr.accept(new TraceClassVisitor(
      null, new PrintWriter(System.out)), getDefaultAttributes(), skipDebug);
  }
  
  private static void printUsage () {
    System.err.println("Prints a disassembled view of the given class.");

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