Package org.apache.openejb.asm

Examples of org.apache.openejb.asm.ClassReader

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        }

        // Load the parameter names using ASM
        Map<Method, List<String>>  methodParameters = new HashMap<Method, List<String>>();
        try {
            ClassReader reader = AsmParameterNameLoader.createClassReader(clazz);

            AsmParameterNameLoader.AllParameterNamesDiscoveringVisitor visitor = new AsmParameterNameLoader.AllParameterNamesDiscoveringVisitor(clazz, methodName);
            reader.accept(visitor, 0);

            Map exceptions = visitor.getExceptions();
            if (exceptions.size() == 1) {
                throw new RuntimeException((Exception) exceptions.values().iterator().next());
            }
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    private static ClassReader createClassReader(Class declaringClass) throws IOException {
        InputStream in = null;
        try {
            ClassLoader classLoader = declaringClass.getClassLoader();
            in = classLoader.getResourceAsStream(declaringClass.getName().replace('.', '/') + ".class");
            ClassReader reader = new ClassReader(in);
            return reader;
        } finally {
            if (in != null) {
                try {
                    in.close();
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        }

        // Load the parameter names using ASM
        Map<Constructor, List<String>> constructorParameters = new HashMap<Constructor, List<String>>();
        try {
            ClassReader reader = AsmParameterNameLoader.createClassReader(clazz);

            AsmParameterNameLoader.AllParameterNamesDiscoveringVisitor visitor = new AsmParameterNameLoader.AllParameterNamesDiscoveringVisitor(clazz);
            reader.accept(visitor, 0);

            Map exceptions = visitor.getExceptions();
            if (exceptions.size() == 1) {
                throw new RuntimeException((Exception) exceptions.values().iterator().next());
            }
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            URL resource = classLoader.getResource(className);
            if (resource != null) {
                InputStream in = resource.openStream();
//                in = new BufferedInputStream(in, 8192 / 4);
                try {
                    ClassReader classReader = new ClassReader(in);
                    classReader.accept(visitor, ASM_FLAGS);
                } finally {
                    in.close();
                }
            } else {
                new Exception("Could not load " + className).printStackTrace();
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    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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        if (!useAsm) return;
        if (processed.contains(c.getName())) return;

        try {
            URL u = c.getResource("/" + c.getName().replace('.', '/') + ".class");
            ClassReader r = new ClassReader(u.openStream());
            r.accept(new PersistenceContextReader(), ClassReader.SKIP_DEBUG);
        } catch (IOException e) {
            throw new OpenEJBException("Unable to read class " + c.getName());
        }

        processed.add(c.getName());
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    private static void file(File file, DependencyVisitor dependencyVisitor) {
        try {
            FileInputStream in = new FileInputStream(file);
            try {
                ClassReader classReader = new ClassReader(in);
                classReader.accept(dependencyVisitor, ClassWriter.COMPUTE_MAXS);
            } finally {
                in.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
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     * Fast-parse the given class bytecode to determine if it is an
     * annotation class.
     */
    private static boolean isAnnotationClass(byte[] bytes) {
        IsAnnotationVisitor isAnnotationVisitor = new IsAnnotationVisitor();
        ClassReader classReader = new ClassReader(bytes);
        classReader.accept(isAnnotationVisitor, ClassReader.SKIP_DEBUG);
        return isAnnotationVisitor.isAnnotation;
    }
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Related Classes of org.apache.openejb.asm.ClassReader

  • org.apache.openejb.config.PersistenceContextAnnFactory
  • org.apache.openejb.core.cmp.jpa.JpaTest
  • org.apache.openejb.core.TempClassLoader
  • org.apache.openejb.DependenceValidationTest
  • org.apache.openejb.util.AnnotationFinder
  • org.apache.openejb.util.AsmParameterNameLoader
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