Package org.codehaus.backport175.reader.bytecode

Examples of org.codehaus.backport175.reader.bytecode.AnnotationReader

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        assertEquals("world", ss[1]);
    }

    public void testFieldAnn5() {
        final AnnotationReader reader = AnnotationReader.getReaderFor(Target.FIELD.getDeclaringClass());
        Annotation annotation = reader.getAnnotation("test.TestAnnotations$LongArray", Target.FIELD);
        Class type = annotation.annotationType();
        assertEquals(TestAnnotations.LongArray.class, type);

        TestAnnotations.LongArray ann = (TestAnnotations.LongArray)annotation;
        long[] longArr = ann.l();
        assertEquals(1l, longArr[0]);
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        assertEquals(6l, longArr[2]);
    }

    public void testFieldAnn6() {
        final AnnotationReader reader = AnnotationReader.getReaderFor(Target.FIELD.getDeclaringClass());
        Annotation annotation = reader.getAnnotation("test.TestAnnotations$Complex", Target.FIELD);
        Class type = annotation.annotationType();
        assertEquals(TestAnnotations.Complex.class, type);

        TestAnnotations.Complex ann = (TestAnnotations.Complex)annotation;
        assertEquals(3, ann.i());
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            final ClassLoader loader = annotationClass.getClassLoader();
            final byte[] bytes;
            try {
                bytes = AnnotationReader.BYTECODE_PROVIDER.getBytecode(className, loader);
            } catch (Exception e) {
                throw new ReaderException("could not retrieve the bytecode from the bytecode provider [" + AnnotationReader.BYTECODE_PROVIDER.getClass().getName() + "]", e);
            }
            ClassReader cr = new ClassReader(bytes);
            ClassWriter cw = new ClassWriter(false, true);
            cr.accept(
                    new ClassAdapter(cw) {
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public class PerfTest extends TestCase {
    private static int INVOCATIONS = 100000;

    public void setUp() {
        // warm up
        final AnnotationReader reader = AnnotationReader.getReaderFor(test.reader.Target.METHOD.getDeclaringClass());
        reader.getAnnotation("test.TestAnnotations$VoidTyped", test.reader.Target.METHOD);
        Target5.METHOD.getAnnotation(Target5.Test.class);
    }
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    }

    public void testAccessAnnotation() {
        long startTime = System.currentTimeMillis();
        for (int i = 0; i < INVOCATIONS; i++) {
            final AnnotationReader reader = AnnotationReader.getReaderFor(test.reader.Target.METHOD.getDeclaringClass());
            Annotation annotation = reader.getAnnotation("test.TestAnnotations$VoidTyped", test.reader.Target.METHOD);
        }
        long time = System.currentTimeMillis() - startTime;
        double timePerInvocationNormalMethod = time / (double) INVOCATIONS;
        System.out.println("backport175 API : " + timePerInvocationNormalMethod);
    }
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     * @param annotation the annotation class
     * @param target      the java.lang.Class object to find the annotation on.
     * @return the annotation or null
     */
    public static Annotation getAnnotation(final Class annotation, final Class target) {
        final AnnotationReader reader = AnnotationReader.getReaderFor(target);
        return reader.getAnnotation(getAnnnotationName(annotation));
    }
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     * @param annotation the annotation class
     * @param method     the java.lang.refect.Method object to find the annotation on.
     * @return the annotation or null
     */
    public static Annotation getAnnotation(final Class annotation, final Method method) {
        final AnnotationReader reader = AnnotationReader.getReaderFor(method.getDeclaringClass());
        return reader.getAnnotation(getAnnnotationName(annotation), method);
    }
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     * @param annotationType the annotation type
     * @param constructor the annotated type
     * @return true if the annotation is present else false
     */
    public static boolean isAnnotationPresent(final Class annotationType, final Constructor constructor) {
        final AnnotationReader reader = AnnotationReader.getReaderFor(constructor.getDeclaringClass());
        return reader.isAnnotationPresent(annotationType, constructor);
    }
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     * @param annotation  the annotation class
     * @param constructor the java.lang.refect.Constructor object to find the annotation on.
     * @return the annotation or null
     */
    public static Annotation getAnnotation(final Class annotation, final Constructor constructor) {
        final AnnotationReader reader = AnnotationReader.getReaderFor(constructor.getDeclaringClass());
        return reader.getAnnotation(getAnnnotationName(annotation), constructor);
    }
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     * @param annotation the annotation class
     * @param field      the java.lang.reflect.Field object to find the annotation on.
     * @return the annotation or null
     */
    public static Annotation getAnnotation(final Class annotation, final Field field) {
        final AnnotationReader reader = AnnotationReader.getReaderFor(field.getDeclaringClass());
        return reader.getAnnotation(getAnnnotationName(annotation), field);
    }
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