Examples with Annotation java.lang.annotation.Annotation used on opensource projects

Example 56 with Annotation

use of java.lang.annotation.Annotation in project morphia by mongodb.

the class MappedField method discoverConstructor.

private Constructor discoverConstructor() {
    Class<?> type = null;
    // get the first annotation with a concreteClass that isn't Object.class
    for (final Annotation an : foundAnnotations.values()) {
        try {
            final Method m = an.getClass().getMethod("concreteClass");
            m.setAccessible(true);
            final Object o = m.invoke(an);
            //noinspection EqualsBetweenInconvertibleTypes
            if (o != null && !(o.equals(Object.class))) {
                type = (Class) o;
                break;
            }
        } catch (NoSuchMethodException e) {
        // do nothing
        } catch (IllegalArgumentException e) {
            if (LOG.isWarningEnabled()) {
                LOG.warning("There should not be an argument", e);
            }
        } catch (Exception e) {
            if (LOG.isWarningEnabled()) {
                LOG.warning("", e);
            }
        }
    }
    if (type != null) {
        try {
            constructor = type.getDeclaredConstructor();
            constructor.setAccessible(true);
        } catch (NoSuchMethodException e) {
            if (!hasAnnotation(ConstructorArgs.class)) {
                if (LOG.isWarningEnabled()) {
                    LOG.warning("No usable constructor for " + type.getName(), e);
                }
            }
        }
    } else {
        // see if we can create instances of the type used for declaration
        type = getType();
        // short circuit to avoid wasting time throwing an exception trying to get a constructor we know doesnt exist
        if (type == List.class || type == Map.class) {
            return null;
        }
        if (type != null) {
            try {
                constructor = type.getDeclaredConstructor();
                constructor.setAccessible(true);
            } catch (NoSuchMethodException e) {
            // never mind.
            } catch (SecurityException e) {
            // never mind.
            }
        }
    }
    return constructor;
}

Example 57 with Annotation

use of java.lang.annotation.Annotation in project netty-socketio by mrniko.

the class ScannerEngine method scan.

public void scan(Namespace namespace, Object object, Class<?> clazz) throws IllegalArgumentException {
    Method[] methods = clazz.getDeclaredMethods();
    if (!clazz.isAssignableFrom(object.getClass())) {
        for (Method method : methods) {
            for (AnnotationScanner annotationScanner : annotations) {
                Annotation ann = method.getAnnotation(annotationScanner.getScanAnnotation());
                if (ann != null) {
                    annotationScanner.validate(method, clazz);
                    Method m = findSimilarMethod(object.getClass(), method);
                    if (m != null) {
                        annotationScanner.addListener(namespace, object, m, ann);
                    } else {
                        log.warn("Method similar to " + method.getName() + " can't be found in " + object.getClass());
                    }
                }
            }
        }
    } else {
        for (Method method : methods) {
            for (AnnotationScanner annotationScanner : annotations) {
                Annotation ann = method.getAnnotation(annotationScanner.getScanAnnotation());
                if (ann != null) {
                    annotationScanner.validate(method, clazz);
                    makeAccessible(method);
                    annotationScanner.addListener(namespace, object, method, ann);
                }
            }
        }
        if (clazz.getSuperclass() != null) {
            scan(namespace, object, clazz.getSuperclass());
        } else if (clazz.isInterface()) {
            for (Class<?> superIfc : clazz.getInterfaces()) {
                scan(namespace, object, superIfc);
            }
        }
    }
}

Example 58 with Annotation

use of java.lang.annotation.Annotation in project netty-socketio by mrniko.

the class SpringAnnotationScanner method postProcessBeforeInitialization.

@Override
public Object postProcessBeforeInitialization(Object bean, String beanName) throws BeansException {
    final AtomicBoolean add = new AtomicBoolean();
    ReflectionUtils.doWithMethods(bean.getClass(), new MethodCallback() {

        @Override
        public void doWith(Method method) throws IllegalArgumentException, IllegalAccessException {
            add.set(true);
        }
    }, new MethodFilter() {

        @Override
        public boolean matches(Method method) {
            for (Class<? extends Annotation> annotationClass : annotations) {
                if (method.isAnnotationPresent(annotationClass)) {
                    return true;
                }
            }
            return false;
        }
    });
    if (add.get()) {
        originalBeanClass = bean.getClass();
    }
    return bean;
}

Example 59 with Annotation

use of java.lang.annotation.Annotation in project ninja by ninjaframework.

the class JaxyRoutes method findControllerMethods.

/**
     * Searches for Methods that have either a Path Annotation or a HTTP-Method Annotation
     */
@SuppressWarnings("unchecked")
private Set<Method> findControllerMethods() {
    Set<Method> methods = Sets.newLinkedHashSet();
    methods.addAll(reflections.getMethodsAnnotatedWith(Path.class));
    Reflections annotationReflections = new Reflections("", new TypeAnnotationsScanner(), new SubTypesScanner());
    for (Class<?> httpMethod : annotationReflections.getTypesAnnotatedWith(HttpMethod.class)) {
        if (httpMethod.isAnnotation()) {
            methods.addAll(reflections.getMethodsAnnotatedWith((Class<? extends Annotation>) httpMethod));
        }
    }
    return methods;
}

Example 60 with Annotation

use of java.lang.annotation.Annotation in project neo4j by neo4j.

the class PluginPointFactoryImpl method createFrom.

public PluginPoint createFrom(ServerPlugin plugin, Method method, Class<?> discovery) {
    ResultConverter result = ResultConverter.get(method.getGenericReturnType());
    Type[] types = method.getGenericParameterTypes();
    Annotation[][] annotations = method.getParameterAnnotations();
    SourceExtractor sourceExtractor = null;
    DataExtractor[] extractors = new DataExtractor[types.length];
    for (int i = 0; i < types.length; i++) {
        Description description = null;
        Parameter param = null;
        Source source = null;
        for (Annotation annotation : annotations[i]) {
            if (annotation instanceof Description) {
                description = (Description) annotation;
            } else if (annotation instanceof Parameter) {
                param = (Parameter) annotation;
            } else if (annotation instanceof Source) {
                source = (Source) annotation;
            }
        }
        if (param != null && source != null) {
            throw new IllegalStateException(String.format("Method parameter %d of %s cannot be retrieved as both Parameter and Source", Integer.valueOf(i), method));
        } else if (source != null) {
            if (types[i] != discovery) {
                throw new IllegalStateException("Source parameter type (" + types[i] + ") must equal the discovery type (" + discovery.getName() + ").");
            }
            if (sourceExtractor != null) {
                throw new IllegalStateException("Server Extension methods may have at most one Source parameter.");
            }
            extractors[i] = sourceExtractor = new SourceExtractor(source, description);
        } else if (param != null) {
            extractors[i] = parameterExtractor(types[i], param, description);
        } else {
            throw new IllegalStateException("Parameters of Server Extension methods must be annotated as either Source or Parameter.");
        }
    }
    return new PluginMethod(nameOf(method), discovery, plugin, result, method, extractors, method.getAnnotation(Description.class));
}