Package org.apache.xbean.asm

Examples of org.apache.xbean.asm.ClassWriter

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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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        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();
        }
        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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        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, "org/eclipse/persistence/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, "org/eclipse/persistence/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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        }

        // 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 static Class createProxy(final Class<?> classToProxy, final ClassLoader cl, final Class... interfaces) {
        return createProxy(classToProxy, cl, classToProxy.getName() + "$LocalBeanProxy", interfaces);
    }

    public static byte[] generateProxy(final Class<?> classToProxy, final String proxyName, final Class<?>... interfaces) throws ProxyGenerationException {
        final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);

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

        // push class signature
        final String[] interfaceNames = new String[interfaces.length];
        for (int i = 0; i < interfaces.length; i++) {
            final Class<?> anInterface = interfaces[i];
            interfaceNames[i] = anInterface.getName().replace('.','/');
        }

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

        cw.visitAnnotation("L" + Proxy.class.getName().replace('.', '/') + ";", true).visitEnd();

        // push InvocationHandler fields
        cw.visitField(ACC_FINAL + ACC_PRIVATE, BUSSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;", null, null).visitEnd();
        cw.visitField(ACC_FINAL + ACC_PRIVATE, NON_BUSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;", null, null).visitEnd();

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

        getNonPrivateMethods(classToProxy, methodMap);

        for (Class<?> anInterface : interfaces) {
            getNonPrivateMethods(anInterface, methodMap);
        }

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

            for (final Method method : entry.getValue()) {
                final String name = method.getName();

                if (Modifier.isPublic(method.getModifiers())
                        || (method.getParameterTypes().length == 0 && ("finalize".equals(name)
                        || "clone".equals(name)))) {
                    // forward invocations of any public methods or
                    // finalize/clone methods to businessHandler
                    processMethod(cw, method, proxyClassFileName, BUSSINESS_HANDLER_NAME);
                } else {
                    // forward invocations of any other methods to nonBusinessHandler
                    processMethod(cw, method, proxyClassFileName, NON_BUSINESS_HANDLER_NAME);
                }
            }
        }

        return cw.toByteArray();
    }
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    }

    private static byte[] generateProxy(final Class<?> classToProxy, final String proxyName,
                                        final Class<?>... interfaces)
            throws ProxyGenerationException {
        final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);

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

        // push class signature
        final String[] interfaceNames = new String[interfaces.length];
        for (int i = 0; i < interfaces.length; i++) {
            final Class<?> anInterface = interfaces[i];
            interfaceNames[i] = anInterface.getName().replace('.', '/');
        }

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

        cw.visitAnnotation("L" + Proxy.class.getName().replace('.', '/') + ";", true).visitEnd();

        // push InvocationHandler fields
        cw.visitField(ACC_FINAL + ACC_PRIVATE, BUSSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;", null,
                null).visitEnd();
        cw.visitField(ACC_FINAL + ACC_PRIVATE, NON_BUSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;", null,
                null).visitEnd();

        propagateConstructors(classToProxy, cw, classFileName);

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

        getNonPrivateMethods(classToProxy, methodMap);

        for (Class<?> anInterface : interfaces) {
            getNonPrivateMethods(anInterface, methodMap);
        }

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

            for (final Method method : entry.getValue()) {
                final String name = method.getName();

                addDirectAccessMethod(classToProxy, cw, method, name);

                if (!Modifier.isPrivate(method.getModifiers()) ||
                        (method.getParameterTypes().length == 0 && ("finalize".equals(name) || "clone".equals(name)))) {
                    // forward invocations of any public methods or
                    // finalize/clone methods to businessHandler
                    processMethod(cw, method, proxyClassFileName, BUSSINESS_HANDLER_NAME);
                } else {
                    // forward invocations of any other methods to nonBusinessHandler
                    processMethod(cw, method, proxyClassFileName, NON_BUSINESS_HANDLER_NAME);
                }
            }
        }

        return cw.toByteArray();
    }
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    }

    private static byte[] generateProxy(final Class<?> classToProxy, final String proxyName,
                                        final Class<?>... interfaces)
            throws ProxyGenerationException {
        final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);

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

        // push class signature
        final String[] interfaceNames = new String[interfaces.length];
        for (int i = 0; i < interfaces.length; i++) {
            final Class<?> anInterface = interfaces[i];
            interfaceNames[i] = anInterface.getName().replace('.', '/');
        }

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

        cw.visitAnnotation("L" + Proxy.class.getName().replace('.', '/') + ";", true).visitEnd();

        // push InvocationHandler fields
        cw.visitField(ACC_FINAL + ACC_PRIVATE, BUSSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;", null,
                null).visitEnd();
        cw.visitField(ACC_FINAL + ACC_PRIVATE, NON_BUSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;", null,
                null).visitEnd();

        propagateConstructors(classToProxy, cw, classFileName);

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

        getNonPrivateMethods(classToProxy, methodMap);

        for (Class<?> anInterface : interfaces) {
            getNonPrivateMethods(anInterface, methodMap);
        }

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

            for (final Method method : entry.getValue()) {
                final String name = method.getName();

                addDirectAccessMethod(classToProxy, cw, method, name);

                if (Modifier.isPublic(method.getModifiers()) ||
                        (method.getParameterTypes().length == 0 && ("finalize".equals(name) || "clone".equals(name)))) {
                    // forward invocations of any public methods or
                    // finalize/clone methods to businessHandler
                    processMethod(cw, method, proxyClassFileName, BUSSINESS_HANDLER_NAME);
                } else {
                    // forward invocations of any other methods to nonBusinessHandler
                    processMethod(cw, method, proxyClassFileName, NON_BUSINESS_HANDLER_NAME);
                }
            }
        }

        return cw.toByteArray();
    }
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    public static Class createProxy(final Class<?> classToProxy, final ClassLoader cl, final Class... interfaces) {
        return createProxy(classToProxy, cl, classToProxy.getName() + "$LocalBeanProxy", interfaces);
    }

    public static byte[] generateProxy(final Class<?> classToProxy, final String proxyName, final Class<?>... interfaces) throws ProxyGenerationException {
        final ClassWriter cw = new ClassWriter(ClassWriter.COMPUTE_MAXS);

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

        // push class signature
        final String[] interfaceNames = new String[interfaces.length];
        for (int i = 0; i < interfaces.length; i++) {
            final Class<?> anInterface = interfaces[i];
            interfaceNames[i] = anInterface.getName().replace('.','/');
        }

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

        cw.visitAnnotation("L" + Proxy.class.getName().replace('.', '/') + ";", true).visitEnd();

        // push InvocationHandler fields
        cw.visitField(ACC_FINAL + ACC_PRIVATE, BUSSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;", null, null).visitEnd();
        cw.visitField(ACC_FINAL + ACC_PRIVATE, NON_BUSINESS_HANDLER_NAME, "Ljava/lang/reflect/InvocationHandler;", null, null).visitEnd();

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

        getNonPrivateMethods(classToProxy, methodMap);

        for (Class<?> anInterface : interfaces) {
            getNonPrivateMethods(anInterface, methodMap);
        }

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

            for (final Method method : entry.getValue()) {
                final String name = method.getName();

                if (Modifier.isPublic(method.getModifiers())
                        || (method.getParameterTypes().length == 0 && ("finalize".equals(name)
                        || "clone".equals(name)))) {
                    // forward invocations of any public methods or
                    // finalize/clone methods to businessHandler
                    processMethod(cw, method, proxyClassFileName, BUSSINESS_HANDLER_NAME);
                } else {
                    // forward invocations of any other methods to nonBusinessHandler
                    processMethod(cw, method, proxyClassFileName, NON_BUSINESS_HANDLER_NAME);
                }
            }
        }

        return cw.toByteArray();
    }
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        } catch (SQLException e) {
        }
    }

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

        FieldAdderClassVisitor visitor = new FieldAdderClassVisitor(classWriter);

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

        byte[] newBytes = classWriter.toByteArray();
        return newBytes;
    }
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Related Classes of org.apache.xbean.asm.ClassWriter

  • org.apache.openejb.cdi.AsmProxyFactory
  • org.apache.openejb.core.cmp.cmp2.Cmp1Generator
  • org.apache.openejb.core.cmp.cmp2.Cmp2Generator
  • org.apache.openejb.core.cmp.jpa.JpaTest
  • org.apache.openejb.jpa.integration.MakeTxLookup
  • org.apache.openejb.util.MakeTxLookup
  • org.apache.openejb.util.proxy.LocalBeanProxyFactory
  • org.apache.openejb.util.proxy.LocalBeanProxyGeneratorImpl
  • org.apache.openjpa.enhance.AsmAdaptor
  • org.apache.webbeans.proxy.AbstractProxyFactory
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