Package org.jboss.classfilewriter

Examples of org.jboss.classfilewriter.ClassMethod

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                            !Modifier.isFinal(method.getModifiers()) &&
                            (method.getDeclaringClass() != Object.class || method.getName().equals("toString")) &&
                            isMethodAccepted(method)) {
                        try {
                            MethodInformation methodInfo = new RuntimeMethodInformation(method);
                            ClassMethod classMethod = proxyClassType.addMethod(method);
                            addConstructedGuardToMethodBody(classMethod);
                            createForwardingMethodBody(classMethod, methodInfo, staticConstructor);
                            BeanLogger.LOG.addingMethodToProxy(method);
                        } catch (DuplicateMemberException e) {
                            // do nothing. This will happen if superclass methods
                            // have been overridden
                        }
                    }
                }
                cls = cls.getSuperclass();
            }
            for (Class<?> c : additionalInterfaces) {
                for (Method method : c.getMethods()) {
                    if (!Modifier.isStatic(method.getModifiers()) && isMethodAccepted(method)) {
                        try {
                            MethodInformation methodInfo = new RuntimeMethodInformation(method);
                            ClassMethod classMethod = proxyClassType.addMethod(method);
                            createSpecialMethodBody(classMethod, methodInfo, staticConstructor);
                            BeanLogger.LOG.addingMethodToProxy(method);
                        } catch (DuplicateMemberException e) {
                        }
                    }
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        try {
            // Add special methods for interceptors
            for (Method method : LifecycleMixin.class.getMethods()) {
                BeanLogger.LOG.addingMethodToProxy(method);
                MethodInformation methodInfo = new RuntimeMethodInformation(method);
                final ClassMethod classMethod = proxyClassType.addMethod(method);
                createInterceptorBody(classMethod, methodInfo, staticConstructor);
            }
            Method getInstanceMethod = TargetInstanceProxy.class.getMethod("getTargetInstance");
            Method getInstanceClassMethod = TargetInstanceProxy.class.getMethod("getTargetClass");
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     * <p/>
     * This would result in a stack overflow if they were actually called,
     * however the proxy is directly created without calling the constructor
     */
    private void addConstructorsForBeanWithPrivateConstructors(ClassFile proxyClassType) {
        ClassMethod ctor = proxyClassType.addMethod(AccessFlag.PUBLIC, INIT_METHOD_NAME, DescriptorUtils.VOID_CLASS_DESCRIPTOR, LJAVA_LANG_BYTE);
        CodeAttribute b = ctor.getCodeAttribute();
        b.aload(0);
        b.aconstNull();
        b.aconstNull();
        b.invokespecial(proxyClassType.getName(), INIT_METHOD_NAME, "(" + LJAVA_LANG_BYTE + LJAVA_LANG_BYTE + ")" + DescriptorUtils.VOID_CLASS_DESCRIPTOR);
        b.returnInstruction();

        ctor = proxyClassType.addMethod(AccessFlag.PUBLIC, INIT_METHOD_NAME, DescriptorUtils.VOID_CLASS_DESCRIPTOR, LJAVA_LANG_BYTE, LJAVA_LANG_BYTE);
        b = ctor.getCodeAttribute();
        b.aload(0);
        b.aconstNull();
        b.invokespecial(proxyClassType.getName(), INIT_METHOD_NAME, "(" + LJAVA_LANG_BYTE + ")" + DescriptorUtils.VOID_CLASS_DESCRIPTOR);
        b.returnInstruction();
    }
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    }

    @Override
    protected void addSerializationSupport(ClassFile proxyClassType) {
        final Class<Exception>[] exceptions = new Class[]{ObjectStreamException.class};
        final ClassMethod writeReplace = proxyClassType.addMethod(AccessFlag.PRIVATE, "writeReplace", LJAVA_LANG_OBJECT);
        writeReplace.addCheckedExceptions(exceptions);

        CodeAttribute b = writeReplace.getCodeAttribute();
        b.newInstruction(SerializableClientProxy.class.getName());
        b.dup();
        b.aload(0);
        b.getfield(proxyClassType.getName(), BEAN_ID_FIELD, BeanIdentifier.class);
        b.ldc(getContextId());
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     * Client proxies use the following hashCode:
     * <code>MyProxyName.class.hashCode()</code>
     */
    @Override
    protected void generateHashCodeMethod(ClassFile proxyClassType) {
        final ClassMethod method = proxyClassType.addMethod(AccessFlag.PUBLIC, HASH_CODE_METHOD, DescriptorUtils.INT_CLASS_DESCRIPTOR);
        final CodeAttribute b = method.getCodeAttribute();
        // MyProxyName.class.hashCode()
        b.loadClass(proxyClassType.getName());
        // now we have the class object on top of the stack
        b.invokevirtual("java.lang.Object", HASH_CODE_METHOD, EMPTY_PARENTHESES + DescriptorUtils.INT_CLASS_DESCRIPTOR);
        // now we have the hashCode
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     * return other instanceof MyProxyClassType.class
     * </code>
     */
    @Override
    protected void generateEqualsMethod(ClassFile proxyClassType) {
        ClassMethod method = proxyClassType.addMethod(AccessFlag.PUBLIC, "equals", DescriptorUtils.BOOLEAN_CLASS_DESCRIPTOR, LJAVA_LANG_OBJECT);
        CodeAttribute b = method.getCodeAttribute();
        b.aload(1);
        b.instanceofInstruction(proxyClassType.getName());
        b.returnInstruction();
    }
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            clazz = loader.loadClass(NAME);
        } catch (ClassNotFoundException e) {
            try {
                final ClassFile file = new ClassFile(NAME, SerializationHackProxy.class.getName());

                final ClassMethod method = file.addMethod(Modifier.PUBLIC, "read", "Ljava/lang/Object;", "Ljava/io/ObjectInputStream;");
                final CodeAttribute codeAttribute = method.getCodeAttribute();
                codeAttribute.aload(1);
                codeAttribute.invokevirtual("java/io/ObjectInputStream", "readObject", "()Ljava/lang/Object;");
                codeAttribute.returnInstruction();

                ClassMethod ctor = file.addMethod(Modifier.PUBLIC, "<init>", "V");
                ctor.getCodeAttribute().aload(0);
                ctor.getCodeAttribute().invokespecial(SerializationHackProxy.class.getName(), "<init>", "()V");
                ctor.getCodeAttribute().returnInstruction();

                clazz = file.define(loader);
            } catch (RuntimeException ex) {
                try {
                    clazz = loader.loadClass(NAME);
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    public byte[] createTokenizer(final String existingClassName, final String[] httpVerbs, String[] httpVersions, String[] standardHeaders) {
        final String className = existingClassName + CLASS_NAME_SUFFIX;
        final ClassFile file = new ClassFile(className, existingClassName);


        final ClassMethod ctor = file.addMethod(AccessFlag.PUBLIC, "<init>", "V", DescriptorUtils.parameterDescriptors(constructorDescriptor));
        ctor.getCodeAttribute().aload(0);
        ctor.getCodeAttribute().loadMethodParameters();
        ctor.getCodeAttribute().invokespecial(existingClassName, "<init>", constructorDescriptor);
        ctor.getCodeAttribute().returnInstruction();


        final ClassMethod sctor = file.addMethod(AccessFlag.PUBLIC | AccessFlag.STATIC, "<clinit>", "V");
        final AtomicInteger fieldCounter = new AtomicInteger(1);
        sctor.getCodeAttribute().invokestatic(existingClassName, "httpStrings", "()" + DescriptorUtils.makeDescriptor(Map.class));
        sctor.getCodeAttribute().astore(CONSTRUCTOR_HTTP_STRING_MAP_VAR);

        createStateMachines(httpVerbs, httpVersions, standardHeaders, className, file, sctor, fieldCounter);

        sctor.getCodeAttribute().returnInstruction();
        return file.toBytecode();
    }
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            createStateField(state, file, sctor.getCodeAttribute());
        }

        final int noStates = stateCounter.get();

        final ClassMethod handle = file.addMethod(Modifier.PROTECTED | Modifier.FINAL, methodName, "V", DescriptorUtils.makeDescriptor(ByteBuffer.class), parseStateDescriptor, httpExchangeDescriptor);
        writeStateMachine(className, file, handle.getCodeAttribute(), initial, allStates, noStates, stateMachine, sctor);
    }
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    public byte[] createTokenizer(final String existingClassName, final String[] httpVerbs, String[] httpVersions, String[] standardHeaders) {
        final String className = existingClassName + CLASS_NAME_SUFFIX;
        final ClassFile file = new ClassFile(className, existingClassName);


        final ClassMethod ctor = file.addMethod(AccessFlag.PUBLIC, "<init>", "V", DescriptorUtils.parameterDescriptors(constructorDescriptor));
        ctor.getCodeAttribute().aload(0);
        ctor.getCodeAttribute().loadMethodParameters();
        ctor.getCodeAttribute().invokespecial(existingClassName, "<init>", constructorDescriptor);
        ctor.getCodeAttribute().returnInstruction();


        final ClassMethod sctor = file.addMethod(AccessFlag.PUBLIC | AccessFlag.STATIC, "<clinit>", "V");
        final AtomicInteger fieldCounter = new AtomicInteger(1);
        sctor.getCodeAttribute().invokestatic(existingClassName, "httpStrings", "()" + DescriptorUtils.makeDescriptor(Map.class));
        sctor.getCodeAttribute().astore(CONSTRUCTOR_HTTP_STRING_MAP_VAR);

        createStateMachines(httpVerbs, httpVersions, standardHeaders, className, file, sctor, fieldCounter);

        sctor.getCodeAttribute().returnInstruction();
        return file.toBytecode();
    }
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Related Classes of org.jboss.classfilewriter.ClassMethod

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  • org.jboss.as.ejb3.iiop.handle.SerializationHackProxy
  • org.jboss.as.ejb3.iiop.stub.IIOPStubCompiler
  • org.jboss.classfilewriter.annotations.AnnotationsAttribute
  • org.jboss.classfilewriter.annotations.ParameterAnnotationsAttribute
  • org.jboss.classfilewriter.attributes.ExceptionsAttribute
  • org.jboss.classfilewriter.attributes.SignatureAttribute
  • org.jboss.classfilewriter.code.CodeAttribute
  • org.jboss.classfilewriter.constpool.ConstPool
  • org.jboss.invocation.proxy.ProxyFactory
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