Examples of ClassWriter

Examples of org.ow2.asm.ClassWriter

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        @Override
        public Class<?> loadClass(final String name) throws ClassNotFoundException
        {
            if (name.startsWith(prefix)) {
                try {
                    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
                    ClassReader cr = new ClassReader(getClass().getResourceAsStream("/"
                            + name.replace('.', '/') + ".class"));
                    cr.accept(new AdviceClassAdapter(cw),
                            ClassReader.EXPAND_FRAMES);
                    byte[] bytecode = cw.toByteArray();
                    return super.defineClass(name, bytecode, 0, bytecode.length);
                } catch (IOException ex) {
                    throw new ClassNotFoundException("Load error: "
                            + ex.toString(), ex);
                }
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Examples of org.ow2.asm.ClassWriter

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        return new RemappingClassAdapterTest2().getSuite();
    }

    @Override
    public void test() throws Exception {
        ClassWriter cw = new ClassWriter(0);
        ClassReader cr = new ClassReader(is);
        Map<String, String> map = new HashMap<String, String>() {
            @Override
            public String get(Object key) {
                return "Foo";
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Examples of org.ow2.asm.ClassWriter

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    }

    @Override
    public void test() throws Exception {
        ClassReader cr = new ClassReader(is);
        ClassWriter cw = new ClassWriter(0);
        ClassVisitor cv = new TraceClassVisitor(cw,
                new PrintWriter(new CharArrayWriter()));
        cr.accept(cv, new Attribute[] { new Comment(), new CodeComment() }, 0);
        assertEquals(cr, new ClassReader(cw.toByteArray()));
    }
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Examples of org.ow2.asm.ClassWriter

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    public void generate(final String dir) throws IOException {
        generate(dir, "pkg/Insns.class", dump());
    }

    public byte[] dump() {
        ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        FieldVisitor fv;
        MethodVisitor mv;

        cw.visit(V1_5,
                ACC_PUBLIC + ACC_SUPER,
                "pkg/Insns",
                "<E:Ljava/lang/Object;F:Ljava/lang/Exception;>Ljava/util/ArrayList<Ljava/lang/String;>;LInterface<TE;>;",
                "java/util/ArrayList",
                new String[] { "Interface" });

        fv = cw.visitField(ACC_PRIVATE + ACC_FINAL,
                "z",
                "Z",
                null,
                new Integer(1));
        fv.visitEnd();

        fv = cw.visitField(ACC_PROTECTED, "b", "B", null, null);
        fv.visitEnd();

        fv = cw.visitField(ACC_PUBLIC, "c", "C", null, null);
        fv.visitEnd();

        fv = cw.visitField(ACC_STATIC, "s", "S", null, null);
        fv.visitEnd();

        fv = cw.visitField(ACC_PRIVATE + ACC_TRANSIENT, "i", "I", null, null);
        fv.visitEnd();

        fv = cw.visitField(ACC_PRIVATE + ACC_VOLATILE, "l", "J", null, null);
        fv.visitEnd();

        fv = cw.visitField(0, "f", "F", null, null);
        fv.visitEnd();

        fv = cw.visitField(0, "d", "D", null, null);
        fv.visitEnd();

        fv = cw.visitField(0, "str", "Ljava/lang/String;", null, "");
        fv.visitEnd();

        fv = cw.visitField(0, "e", "Ljava/lang/Object;", "TE;", null);
        fv.visitEnd();

        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL,
                "java/util/ArrayList",
                "<init>",
                "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        mv = cw.visitMethod(ACC_PUBLIC + ACC_SYNCHRONIZED,
                "m",
                "(ZBCSIFJDLjava/lang/Object;)Ljava/lang/Object;",
                "(ZBCSIFJDTE;)TE;",
                null);
        mv.visitCode();
        mv.visitInsn(ACONST_NULL);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(0, 0);
        mv.visitEnd();

        // instruction types
        constInsns(cw);
        varInsns(cw);
        arrayInsns(cw);
        stackInsns(cw);
        mathInsns(cw);
        castInsns(cw);
        jumpInsns(cw);
        returnInsns(cw);
        fieldInsns(cw);
        methodInsns(cw);
        monitorInsns(cw);

        // various method types not covered by other test cases
        varargMethod(cw);
        bridgeMethod(cw);
        nativeMethod(cw);
        clinitMethod(cw);

        cw.visitEnd();

        return cw.toByteArray();
    }
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Examples of org.ow2.asm.ClassWriter

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    }

    @Override
    public void test() throws Exception {
        ClassReader cr = new ClassReader(is);
        ClassWriter cw = new ClassWriter(0);
        cr.accept(new CheckClassAdapter(cw), 0);
        assertEquals(cr, new ClassReader(cw.toByteArray()));
    }
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Examples of org.ow2.easybeans.asm.ClassWriter

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     * @param generatedClassName the name of the class to generate.
     * @param allInterceptors interceptors that needs to be managed.
     */
    public InterceptorManagerGenerator(final EjbJarArchiveMetadata ejbJarAnnotationMetadata,
            final String generatedClassName, final List<String> allInterceptors) {
        super(new ClassWriter(ClassWriter.COMPUTE_MAXS));
        this.ejbJarAnnotationMetadata = ejbJarAnnotationMetadata;
        this.generatedClassName = generatedClassName;
        this.allInterceptors = allInterceptors;
    }
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Examples of org.ow2.easybeans.asm.ClassWriter

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     * @param methodAnnotationMetadata method meta data
     * @param interceptorType the type of invocationContext to generate (AroundInvoke, PostConstruct, etc)
     */
    public EasyBeansInvocationContextGenerator(final EasyBeansEjbJarMethodMetadata methodAnnotationMetadata,
            final InterceptorType interceptorType) {
        super(new ClassWriter(ClassWriter.COMPUTE_MAXS));
        this.methodAnnotationMetadata = methodAnnotationMetadata;
        this.classAnnotationMetadata = methodAnnotationMetadata.getClassMetadata();
        this.jMethod = methodAnnotationMetadata.getJMethod();

        // package name is prefixed
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Examples of org.ow2.easybeans.asm.ClassWriter

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     * @return the bytecode
     * @throws Exception if bytecode can't be built
     */
    public static byte[] getByteForClass(final String className, final String helloWorldString) throws Exception {

        ClassWriter cw = new ClassWriter(0);
        MethodVisitor mv;
        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, className, null, "java/lang/Object", null);

        // Constructor
        mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
        mv.visitCode();
        mv.visitVarInsn(ALOAD, 0);
        mv.visitMethodInsn(INVOKESPECIAL, "java/lang/Object", "<init>", "()V");
        mv.visitInsn(RETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();

        // hello method
        mv = cw.visitMethod(ACC_PUBLIC, "hello", "()Ljava/lang/String;", null, null);
        mv.visitCode();
        mv.visitLdcInsn(helloWorldString);
        mv.visitInsn(ARETURN);
        mv.visitMaxs(1, 1);
        mv.visitEnd();

        cw.visitEnd();

        return cw.toByteArray();
    }
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Examples of org.ow2.easybeans.asm.ClassWriter

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                // And do this only one time.
                enhanceSuperClass(classAnnotationMetadata, null);

                // Create ClassReader/Writer
                ClassReader cr = getClassReader(classAnnotationMetadata);
                ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
                InterceptorClassAdapter cv = new InterceptorClassAdapter(classAnnotationMetadata, cw);
                InjectionClassAdapter cv2 = new InjectionClassAdapter(classAnnotationMetadata, cv, this.map, null, false);
                cr.accept(cv2, 0);
                classAnnotationMetadata.setModified();
                defineClass(this.loader, classAnnotationMetadata.getClassName().replace("/", "."), cw.toByteArray());
            }
        }
        // search all beans
        logger.info("Beans found are {0}", this.ejbJarAnnotationMetadata.getBeanNames());


        List<String> beanNames = this.ejbJarAnnotationMetadata.getBeanNames();
        for (String beanName : beanNames) {
            for (EasyBeansEjbJarClassMetadata classAnnotationMetadata : this.ejbJarAnnotationMetadata
                    .getClassesForBean(beanName)) {
                if (classAnnotationMetadata.isBean()) {

                    // First, enhance all super classes of the bean. (if any)
                    // And do this only one time.
                    enhanceSuperClass(classAnnotationMetadata, classAnnotationMetadata);
                    //logger.info("Enhancement of {0} done !", classAnnotationMetadata);

                    // Create ClassReader/Writer
                    ClassReader cr = getClassReader(classAnnotationMetadata);
                    ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
                    BeanClassAdapter cv = new BeanClassAdapter(classAnnotationMetadata, cw);
                    InterceptorClassAdapter itcpClassAdapter = new InterceptorClassAdapter(classAnnotationMetadata, cv);
                    InjectionClassAdapter cv2 = new InjectionClassAdapter(classAnnotationMetadata, itcpClassAdapter, this.map,
                            classAnnotationMetadata, false);

                    ClassVisitor beanVisitor = cv2;
                    // EJb 2.1 view ?
                    if (classAnnotationMetadata.getRemoteHome() != null || classAnnotationMetadata.getLocalHome() != null) {
                        Migration21ClassAdapter ejb21Adapter = new Migration21ClassAdapter(classAnnotationMetadata, cv2);
                        beanVisitor = ejb21Adapter;
                    }


                    cr.accept(beanVisitor, 0);

                    // define subclasses if interceptor enabled
                    loadDefinedClasses(this.loader, itcpClassAdapter.getDefinedClasses());

                    defineClass(this.loader, classAnnotationMetadata.getClassName().replace("/", "."), cw.toByteArray());

                }
            }
        }
    }
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Examples of org.ow2.easybeans.asm.ClassWriter

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        String superClass = classAnnotationMetadata.getSuperName();
        if (!superClass.equals(JAVA_LANG_OBJECT)) {
            EasyBeansEjbJarClassMetadata superMetaData = classAnnotationMetadata.getLinkedClassMetadata(superClass);
            if (superMetaData != null && !superMetaData.wasModified()) {
                ClassReader cr = getClassReader(superMetaData);
                ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
                InterceptorClassAdapter itcpClassAdapter = new InterceptorClassAdapter(superMetaData, cw);
                InjectionClassAdapter cv = new InjectionClassAdapter(superMetaData, itcpClassAdapter, this.map,
                        beanClassMetadata, false);
                cr.accept(cv, 0);
                superMetaData.setModified();
                defineClass(this.loader, superMetaData.getClassName().replace("/", "."), cw.toByteArray());
                enhanceSuperClass(superMetaData, beanClassMetadata);
            }
        }

    }
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