Package org.apache.xbean.asm4

Examples of org.apache.xbean.asm4.ClassVisitor

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     */
    public Cmp1Generator(String cmpImplClass, Class beanClass) {
        beanClassName = Type.getInternalName(beanClass);
        implClassName = cmpImplClass.replace('.', '/');

        cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);

        postCreateGenerator = new PostCreateGenerator(beanClass, cw);
    }
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        createTopLinkStrategy(file);
        createEclipseLinkStrategy(file);
    }

    private static void createNewHibernateStrategy(File basedir) throws Exception {
        ClassWriter cw = new ClassWriter(0);
        MethodVisitor mv;

        cw.visit(V1_6, ACC_PUBLIC + ACC_SUPER, "org/apache/openejb/hibernate/OpenEJBJtaPlatform", null, "org/hibernate/service/jta/platform/internal/AbstractJtaPlatform", null);

        {
            mv = cw.visitMethod(ACC_PUBLIC, "<init>", "()V", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 0);
            mv.visitMethodInsn(INVOKESPECIAL, "org/hibernate/service/jta/platform/internal/AbstractJtaPlatform", "<init>", "()V");
            mv.visitInsn(RETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
        }
        {
            mv = cw.visitMethod(ACC_PROTECTED, "locateTransactionManager", "()Ljavax/transaction/TransactionManager;", null, null);
            mv.visitCode();
            mv.visitMethodInsn(INVOKESTATIC, "org/apache/openejb/OpenEJB", "getTransactionManager", "()Ljavax/transaction/TransactionManager;");
            mv.visitInsn(ARETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
        }
        {
            mv = cw.visitMethod(ACC_PROTECTED, "locateUserTransaction", "()Ljavax/transaction/UserTransaction;", null, null);
            mv.visitCode();
            Label l0 = new Label();
            Label l1 = new Label();
            Label l2 = new Label();
            mv.visitTryCatchBlock(l0, l1, l2, "javax/naming/NamingException");
            mv.visitLabel(l0);
            mv.visitMethodInsn(INVOKESTATIC, "org/apache/openejb/loader/SystemInstance", "get", "()Lorg/apache/openejb/loader/SystemInstance;");
            mv.visitLdcInsn(Type.getType("Lorg/apache/openejb/spi/ContainerSystem;"));
            mv.visitMethodInsn(INVOKEVIRTUAL, "org/apache/openejb/loader/SystemInstance", "getComponent", "(Ljava/lang/Class;)Ljava/lang/Object;");
            mv.visitTypeInsn(CHECKCAST, "org/apache/openejb/spi/ContainerSystem");
            mv.visitMethodInsn(INVOKEINTERFACE, "org/apache/openejb/spi/ContainerSystem", "getJNDIContext", "()Ljavax/naming/Context;");
            mv.visitLdcInsn("comp/UserTransaction");
            mv.visitMethodInsn(INVOKEINTERFACE, "javax/naming/Context", "lookup", "(Ljava/lang/String;)Ljava/lang/Object;");
            mv.visitTypeInsn(CHECKCAST, "javax/transaction/UserTransaction");
            mv.visitLabel(l1);
            mv.visitInsn(ARETURN);
            mv.visitLabel(l2);
            mv.visitFrame(Opcodes.F_SAME1, 0, null, 1, new Object[]{"javax/naming/NamingException"});
            mv.visitVarInsn(ASTORE, 1);
            mv.visitInsn(ACONST_NULL);
            mv.visitInsn(ARETURN);
            mv.visitMaxs(2, 2);
            mv.visitEnd();
        }
        cw.visitEnd();

        String factory = HIBERNATE_NEW_FACTORY;
        String classFilePath = factory.replace('.', '/');
        write(basedir, cw, classFilePath);
    }
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        String classFilePath = factory.replace('.', '/');

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

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

        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, classFilePath, null, "java/lang/Object", new String[]{"org/hibernate/transaction/TransactionManagerLookup"});

        cw.visitSource(sourceFileName, null);

        {
            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();
        }
        {
            mv = cw.visitMethod(ACC_PUBLIC, "getTransactionManager", "(Ljava/util/Properties;)Ljavax/transaction/TransactionManager;", null, new String[]{"org/hibernate/HibernateException"});
            mv.visitCode();
            mv.visitMethodInsn(INVOKESTATIC, "org/apache/openejb/OpenEJB", "getTransactionManager", "()Ljavax/transaction/TransactionManager;");
            mv.visitInsn(ARETURN);
            mv.visitMaxs(1, 2);
            mv.visitEnd();
        }
        {
            mv = cw.visitMethod(ACC_PUBLIC, "getUserTransactionName", "()Ljava/lang/String;", null, null);
            mv.visitCode();
            mv.visitLdcInsn("java:comp/UserTransaction");
            mv.visitInsn(ARETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
        }
        {
            mv = cw.visitMethod(ACC_PUBLIC, "getTransactionIdentifier", "(Ljavax/transaction/Transaction;)Ljava/lang/Object;", null, null);
            mv.visitCode();
            mv.visitVarInsn(ALOAD, 1);
            mv.visitInsn(ARETURN);
            mv.visitMaxs(1, 2);
            mv.visitEnd();
        }
        cw.visitEnd();


        write(baseDir, cw, classFilePath);
    }
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        String classFilePath = factory.replace('.', '/');

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


        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");
            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;");
            mv.visitInsn(ARETURN);
            mv.visitMaxs(1, 1);
            mv.visitEnd();
        }
        cw.visitEnd();


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

        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 (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 (MethodVisitor visitor : visitors.values()) {
            visitor.visitEnd();
        }

        return cw.toByteArray();
    }
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        }

        @Override
        public FieldVisitor visitField(final int access, final String name, final String desc, final String signature,
            final Object value) {
            final FieldVisitor toWrap = wrapped.visitField(access, name, desc, signature, value);
            final ClassInfo classInfo = (ClassInfo) wrapped.getInfo();
            FieldInfo testFieldInfo = null;
            // should be the most recently added field, so iterate backward:
            for (int i = classInfo.getFields().size() - 1; i >= 0; i--) {
                final FieldInfo atI = classInfo.getFields().get(i);
                if (atI.getName().equals(name) && atI.getType().equals(desc)) {
                    testFieldInfo = atI;
                    break;
                }
            }
            if (testFieldInfo == null) {
                return toWrap;
            }
            final FieldInfo fieldInfo = testFieldInfo;
            return new FieldVisitor(Opcodes.ASM4, toWrap) {
                @Override
                public AnnotationVisitor visitAnnotation(final String desc, final boolean visible) {
                    final AnnotationVisitor toWrap = super.visitAnnotation(desc, visible);
                    return visible ? toWrap : new TopLevelAnnotationInflater(desc, toWrap, fieldInfo);
                }
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        // EntityBean and Cmp2Entity.
        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, implClassName, null, beanClassName, new String[]{"org/apache/openejb/core/cmp/cmp2/Cmp2Entity", "javax/ejb/EntityBean"});

        // public static Object deploymentInfo;
        {
            FieldVisitor fv = cw.visitField(ACC_PUBLIC + ACC_STATIC, "deploymentInfo", "Ljava/lang/Object;", null, null);
            fv.visitEnd();
        }

        // private transient boolean deleted;
        {
            FieldVisitor fv = cw.visitField(ACC_PRIVATE + ACC_TRANSIENT, DELETED, "Z", null, null);
            fv.visitEnd();
        }

        if (Object.class.equals(primKeyClass)) {
            FieldVisitor fv = cw.visitField(ACC_PRIVATE, UNKNOWN_PK_NAME, UNKNOWN_PK_TYPE.getDescriptor(), null, null);
            fv.visitEnd();
        }

        // Generate the set of cmp fields as private attributes.
        // private ${cmpField.type} ${cmpField.name};
        for (CmpField cmpField : cmpFields.values()) {
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     * with private scope.
     *
     * @param cmpField The Cmp field defined in the metadata.
     */
    private void createField(CmpField cmpField) {
        FieldVisitor fv = cw.visitField(ACC_PRIVATE,
                cmpField.getName(),
                cmpField.getDescriptor(),
                null,
                null);
        fv.visitEnd();
    }
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     * of the field name.
     *
     * @param cmrField The CMR field descriptor.
     */
    private void createCmrFields(CmrField cmrField) {
        FieldVisitor fv = cw.visitField(ACC_PRIVATE,
                cmrField.getName(),
                cmrField.getDescriptor(),
                cmrField.getGenericSignature(),
                null);
        fv.visitEnd();

        fv = cw.visitField(ACC_PRIVATE + ACC_TRANSIENT,
                cmrField.getName() + "Cmr",
                cmrField.getAccessorDescriptor(),
                cmrField.getAccessorGenericSignature(),
                null);
        fv.visitEnd();
    }
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        cw.visit(V1_5, ACC_PUBLIC + ACC_SUPER, implClassName, null, beanClassName, new String[]{"javax/ejb/EntityBean"});

        // if we have an unknown pk, we need to add a field for the pk
        if (unknownPk) {
            // public Long OpenEJB_pk;
            FieldVisitor fv = cw.visitField(ACC_PUBLIC, "OpenEJB_pk", "Ljava/lang/Long;", null, null);
            fv.visitEnd();
        }

        // there's not much to generate here.  We create a default constructor, then generate the
        // post create methods.  A lot of the work is done by having mapped superclass information that
        // we pass to the JPA engine.
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