Package org.apache.cxf.common.util

Examples of org.apache.cxf.common.util.ASMHelper$ClassWriter

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        final String classFilePath = factory.replace('.', '/');

        final String sourceFileName = factory.substring(factory.lastIndexOf('.') + 1, factory.length()) + ".java";


        final ClassWriter cw = new ClassWriter(0);
        MethodVisitor mv;

        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, classFilePath, null, "oracle/toplink/essentials/transaction/JTATransactionController", null);

        cw.visitSource(sourceFileName, null);

        {
            mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, "oracle/toplink/essentials/transaction/JTATransactionController", "<init>", "()V", false);
            mv.visitInsn(RETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
        }
        {
            mv = cw.visitMethod(ACC_PROTECTED, "acquireTransactionManager", "()Ljavax/transaction/TransactionManager;", null, new String[]{"java/lang/Exception"});
            mv.visitCode();
            mv.visitMethodInsn(INVOKESTATIC, "org/apache/openejb/OpenEJB", "getTransactionManager", "()Ljavax/transaction/TransactionManager;", false);
            mv.visitInsn(ARETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
        }
        cw.visitEnd();


        write(baseDir, cw, classFilePath);
    }
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        }
    }

    @SuppressWarnings("UnusedDeclaration")
    public static byte[] addNewField(final byte[] origBytes) {
        final ClassWriter classWriter = new ClassWriter(ClassWriter.COMPUTE_FRAMES);

        final FieldAdderClassVisitor visitor = new FieldAdderClassVisitor(classWriter);

        final ClassReader classReader = new ClassReader(origBytes);
        classReader.accept(visitor, 0);

        return classWriter.toByteArray();
    }
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        }

        // The class writer will be used for all generator activies, while the
        // postCreateGenerator will be used to add the ejbPostCreatexxxx methods as a
        // last step.
        cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);
        postCreateGenerator = new PostCreateGenerator(beanClass, cw);
    }
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     */
    public Cmp1Generator(final String cmpImplClass, final Class beanClass) {
        beanClassName = Type.getInternalName(beanClass);
        implClassName = cmpImplClass.replace('.', '/');

        cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);

        postCreateGenerator = new PostCreateGenerator(beanClass, cw);
    }
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    private static byte[] generateBytes(final Class<?> classToProxy) throws ProxyGenerationException {

        final Map<String, MethodVisitor> visitors = new HashMap<>();

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

        final String proxyClassFileName = getSubclassName(classToProxy).replace('.', '/');
        final String classFileName = classToProxy.getName().replace('.', '/');

        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, proxyClassFileName, null, classFileName, null);
        cw.visitSource(classFileName + ".java", null);


        // push InvocationHandler field
        cw.visitField(ACC_FINAL + ACC_PRIVATE, "this$handler", "Ljava/lang/reflect/InvocationHandler;", null, null).visitEnd();

        for (final Constructor<?> constructor : classToProxy.getConstructors()) {
            if (!Modifier.isPublic(constructor.getModifiers())) {
                continue;
            }

            final MethodVisitor mv = visitConstructor(cw, proxyClassFileName, classFileName, constructor);
            visitors.put("<init>" + Type.getConstructorDescriptor(constructor), mv);
        }

        final Map<String, List<Method>> methodMap = new HashMap<>();

        getNonPrivateMethods(classToProxy, methodMap);

        // Iterate over the public methods
        for (final Map.Entry<String, List<Method>> entry : methodMap.entrySet()) {

            for (final Method method : entry.getValue()) {
                if (Modifier.isAbstract(method.getModifiers())) {
                    final MethodVisitor visitor = LocalBeanProxyFactory.visit(cw, method, proxyClassFileName, "this$handler");
                    visitors.put(method.getName() + Type.getMethodDescriptor(method), visitor);
                }
            }
        }

        copyClassAnnotations(classToProxy, cw);

        copyMethodAnnotations(classToProxy, visitors);

        // This should never be reached, but just in case
        for (final MethodVisitor visitor : visitors.values()) {
            visitor.visitEnd();
        }

        return cw.toByteArray();
    }
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    public static File subclass(final Class<?> parent, final String subclassName) throws Exception {
        final String subclassNameInternal = subclassName.replace('.', '/');

        final byte[] bytes;
        {
            final ClassWriter cw = new ClassWriter(0);
            final String parentClassNameInternal = parent.getName().replace('.', '/');

            cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC + ACC_SUPER, subclassNameInternal, null, parentClassNameInternal, null);

            final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, parentClassNameInternal, "<init>", "()V", false);
            mv.visitInsn(RETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
            cw.visitEnd();

            bytes = cw.toByteArray();
        }

        return Archive.archive().add(subclassNameInternal + ".class", bytes).asJar();
    }
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        } catch (final SQLException e) {
        }
    }

    public static byte[] addNewField(final byte[] origBytes) {
        final ClassWriter classWriter = new ClassWriter(ClassWriter.COMPUTE_FRAMES);

        final FieldAdderClassVisitor visitor = new FieldAdderClassVisitor(classWriter);

        final ClassReader classReader = new ClassReader(origBytes);
        classReader.accept(visitor, 0);

        return classWriter.toByteArray();
    }
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    public static File subclass(final Class<?> parent, final String subclassName) throws Exception {
        final String subclassNameInternal = subclassName.replace('.', '/');

        final byte[] bytes;
        {
            final ClassWriter cw = new ClassWriter(0);
            final String parentClassNameInternal = parent.getName().replace('.', '/');

            cw.visit(Opcodes.V1_6, Opcodes.ACC_PUBLIC + ACC_SUPER, subclassNameInternal, null, parentClassNameInternal, null);

            final MethodVisitor mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, parentClassNameInternal, "<init>", "()V", false);
            mv.visitInsn(RETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
            cw.visitEnd();

            bytes = cw.toByteArray();
        }

        return Archive.archive().add(subclassNameInternal + ".class", bytes).asJar();
    }
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    private static byte[] generateBytes(final Class<?> classToProxy) throws ProxyGenerationException {

        final Map<String, MethodVisitor> visitors = new HashMap<String, MethodVisitor>();

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

        final String proxyClassFileName = getSubclassName(classToProxy).replace('.', '/');
        final String classFileName = classToProxy.getName().replace('.', '/');

        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, proxyClassFileName, null, classFileName, null);
        cw.visitSource(classFileName + ".java", null);


        // push InvocationHandler field
        cw.visitField(ACC_FINAL + ACC_PRIVATE, "this$handler", "Ljava/lang/reflect/InvocationHandler;", null, null).visitEnd();

        for (final Constructor<?> constructor : classToProxy.getConstructors()) {
            if (!Modifier.isPublic(constructor.getModifiers())) {
                continue;
            }

            final MethodVisitor mv = visitConstructor(cw, proxyClassFileName, classFileName, constructor);
            visitors.put("<init>" + Type.getConstructorDescriptor(constructor), mv);
        }

        final Map<String, List<Method>> methodMap = new HashMap<String, List<Method>>();

        getNonPrivateMethods(classToProxy, methodMap);

        // Iterate over the public methods
        for (final Map.Entry<String, List<Method>> entry : methodMap.entrySet()) {

            for (final Method method : entry.getValue()) {
                if (Modifier.isAbstract(method.getModifiers())) {
                    final MethodVisitor visitor = LocalBeanProxyFactory.visit(cw, method, proxyClassFileName, "this$handler");
                    visitors.put(method.getName() + Type.getMethodDescriptor(method), visitor);
                }
            }
        }

        copyClassAnnotations(classToProxy, cw);

        copyMethodAnnotations(classToProxy, visitors);

        // This should never be reached, but just in case
        for (final MethodVisitor visitor : visitors.values()) {
            visitor.visitEnd();
        }

        return cw.toByteArray();
    }
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    public SubClassGenerator(ClassLoader parent) {
        super(parent);
    }

    public <T> Class<? extends T> generate(Class<T> base, String name) {
        ClassWriter cw = new ClassWriter(0);//?
        cw.visit(49, ACC_PUBLIC, name.replace('.', '/'), null,
                Type.getInternalName(base),null);

        for (Constructor c : base.getDeclaredConstructors()) {
            Class[] et = c.getExceptionTypes();
            String[] exceptions = new String[et.length];
            for (int i = 0; i < et.length; i++)
                exceptions[i] = Type.getInternalName(et[i]);

            String methodDescriptor = getMethodDescriptor(c);
            MethodVisitor m = cw.visitMethod(c.getModifiers(), "<init>", methodDescriptor, null, exceptions);
            m.visitCode();

            int index=1;
            m.visitVarInsn(ALOAD,0);
            for (Class param : c.getParameterTypes()) {
                Type t = Type.getType(param);
                m.visitVarInsn(t.getOpcode(ILOAD), index);
                index += t.getSize();
            }
            m.visitMethodInsn(INVOKESPECIAL, Type.getInternalName(base), "<init>", methodDescriptor);
            m.visitInsn(RETURN);
            m.visitMaxs(index,index);
            m.visitEnd();
        }

        cw.visitEnd();
        byte[] image = cw.toByteArray();

        Class<? extends T> c = defineClass(name, image, 0, image.length).asSubclass(base);

        Jenkins h = Jenkins.getInstance();
        if (h!=null)    // null only during tests.
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