Examples of org.mvel2.asm.ClassWriter

org.mvel2.asm.ClassWriter
A {@link ClassVisitor} that generates classes in bytecode form. Moreprecisely this visitor generates a byte array conforming to the Java class file format. It can be used alone, to generate a Java class "from scratch", or with one or more {@link ClassReader ClassReader} and adapter class visitorto generate a modified class from one or more existing Java classes. @author Eric Bruneton

                                                      IllegalAccessException,
                                                      InvocationTargetException,
                                                      InstantiationException,
                                                      NoSuchFieldException {


        ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS );


        this.buildClassHeader( cw,
                               classDef );


        // Building fields
        for ( FieldDefinition fieldDef : classDef.getFieldsDefinitions() ) {
            this.buildField( cw,
                             fieldDef );
        }


        // Building default constructor
        this.buildDefaultConstructor( cw,
                                      classDef );


        // Building constructor with all fields
        this.buildConstructorWithFields( cw,
                                         classDef,
                                         classDef.getFieldsDefinitions() );


        // Building constructor with key fields only
        List<FieldDefinition> keys = new LinkedList<FieldDefinition>();
        for ( FieldDefinition fieldDef : classDef.getFieldsDefinitions() ) {
            if ( fieldDef.isKey() ) {
                keys.add( fieldDef );
            }
        }
        if ( !keys.isEmpty() && keys.size() != classDef.getFieldsDefinitions().size() ) {
            this.buildConstructorWithFields( cw,
                                             classDef,
                                             keys );
        }


        // Building methods
        for ( FieldDefinition fieldDef : classDef.getFieldsDefinitions() ) {
            this.buildGetMethod( cw,
                                 classDef,
                                 fieldDef );
            this.buildSetMethod( cw,
                                 classDef,
                                 fieldDef );
        }


        this.buildEquals( cw,
                          classDef );
        this.buildHashCode( cw,
                            classDef );


        this.buildToString( cw,
                            classDef );


        cw.visitEnd();


        return cw.toByteArray();
    }

View Full Code Here

                              final String className,
                              final Method getterMethod,
                              final Class< ? > fieldType,
                              final boolean isInterface) throws Exception {


        final ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS );


        final Class< ? > superClass = getReaderSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );


        //        buildConstructor( superClass,
        //                          className,
        //                          cw );


        build3ArgConstructor( superClass,
                              className,
                              cw );


        buildGetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        cw );


        cw.visitEnd();


        return cw.toByteArray();
    }

View Full Code Here

                              final String className,
                              final Method getterMethod,
                              final Class< ? > fieldType,
                              final boolean isInterface) throws Exception {


        final ClassWriter cw = new ClassWriter( ClassWriter.COMPUTE_FRAMES | ClassWriter.COMPUTE_MAXS );


        final Class< ? > superClass = getWriterSuperClassFor( fieldType );
        buildClassHeader( superClass,
                          className,
                          cw );


        build3ArgConstructor( superClass,
                              className,
                              cw );


        buildSetMethod( originalClass,
                        className,
                        superClass,
                        getterMethod,
                        fieldType,
                        cw );


        cw.visitEnd();


        return cw.toByteArray();
    }

View Full Code Here

        ASMContentHandlerFactory(final OutputStream os) {
            this.os = os;
        }


        public final ContentHandler createContentHandler() {
            final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
            return new ASMContentHandler(cw) {
                @Override
                public void endDocument() throws SAXException {
                    try {
                        os.write(cw.toByteArray());
                    } catch (IOException e) {
                        throw new SAXException(e);
                    }
                }
            };

View Full Code Here

  private StringAppender buildLog;


  public ASMAccessorOptimizer() {
    //do this to confirm we're running the correct version
    //otherwise should create a verification error in VM
    new ClassWriter(ClassWriter.COMPUTE_MAXS);
  }

View Full Code Here

  private void _initJIT() {
    if (isAdvancedDebugging()) {
      buildLog = new StringAppender();
    }


    cw = new ClassWriter(ClassWriter.COMPUTE_MAXS + ClassWriter.COMPUTE_FRAMES);


    synchronized (Runtime.getRuntime()) {
      cw.visit(OPCODES_VERSION, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, className = "ASMAccessorImpl_"
          + valueOf(cw.hashCode()).replaceAll("\\-", "_") + (System.currentTimeMillis() / 10) +
          ((int) Math.random() * 100),

View Full Code Here

  private void _initJIT2() {
    if (isAdvancedDebugging()) {
      buildLog = new StringAppender();
    }


    cw = new ClassWriter(ClassWriter.COMPUTE_MAXS + ClassWriter.COMPUTE_FRAMES);


    synchronized (Runtime.getRuntime()) {
      cw.visit(OPCODES_VERSION, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, className = "ASMAccessorImpl_"
          + valueOf(cw.hashCode()).replaceAll("\\-", "_") + (System.currentTimeMillis() / 10) +
          ((int) Math.random() * 100),

View Full Code Here

  private StringAppender buildLog;


  public ASMAccessorOptimizer() {
    //do this to confirm we're running the correct version
    //otherwise should create a verification error in VM
    new ClassWriter(ClassWriter.COMPUTE_MAXS);
  }

View Full Code Here

  private void _initJIT() {
    if (isAdvancedDebugging()) {
      buildLog = new StringAppender();
    }


    cw = new ClassWriter(ClassWriter.COMPUTE_MAXS + ClassWriter.COMPUTE_FRAMES);


    synchronized (Runtime.getRuntime()) {
      cw.visit(OPCODES_VERSION, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, className = "ASMAccessorImpl_"
          + valueOf(cw.hashCode()).replaceAll("\\-", "_") + (System.currentTimeMillis() / 10) +
          ((int) Math.random() * 100),

View Full Code Here

  private void _initJIT2() {
    if (isAdvancedDebugging()) {
      buildLog = new StringAppender();
    }


    cw = new ClassWriter(ClassWriter.COMPUTE_MAXS + ClassWriter.COMPUTE_FRAMES);


    synchronized (Runtime.getRuntime()) {
      cw.visit(OPCODES_VERSION, Opcodes.ACC_PUBLIC + Opcodes.ACC_SUPER, className = "ASMAccessorImpl_"
          + valueOf(cw.hashCode()).replaceAll("\\-", "_") + (System.currentTimeMillis() / 10) +
          ((int) Math.random() * 100),

View Full Code Here

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