Example usage for org.apache.commons.lang3.reflect MethodUtils getMethodsListWithAnnotation

Introduction

In this page you can find the example usage for org.apache.commons.lang3.reflect MethodUtils getMethodsListWithAnnotation.

Prototype

public static List<Method> getMethodsListWithAnnotation(final Class<?> cls,
        final Class<? extends Annotation> annotationCls) 

Source Link

Document

Gets all methods of the given class that are annotated with the given annotation.

Usage

From source file:com.hurence.logisland.util.kura.Metrics.java

public static <T> T readFrom(final T object, final Map<String, Object> metrics) {
    Objects.requireNonNull(object);

    for (final Field field : FieldUtils.getFieldsListWithAnnotation(object.getClass(), Metric.class)) {
        final Metric m = field.getAnnotation(Metric.class);
        final boolean optional = field.isAnnotationPresent(Optional.class);

        final Object value = metrics.get(m.value());
        if (value == null && !optional) {
            throw new IllegalArgumentException(
                    String.format("Field '%s' is missing metric '%s'", field.getName(), m.value()));
        }/*from ww  w.j  a  v a 2  s  .  co m*/

        if (value == null) {
            // not set but optional
            continue;
        }

        try {
            FieldUtils.writeField(field, object, value, true);
        } catch (final IllegalArgumentException e) {
            // provide a better message
            throw new IllegalArgumentException(String.format("Failed to assign '%s' (%s) to field '%s'", value,
                    value.getClass().getName(), field.getName()), e);
        } catch (final IllegalAccessException e) {
            throw new RuntimeException(e);
        }
    }

    for (final Method method : MethodUtils.getMethodsListWithAnnotation(object.getClass(), Metric.class)) {
        final Metric m = method.getAnnotation(Metric.class);
        final boolean optional = method.isAnnotationPresent(Optional.class);

        final Object value = metrics.get(m.value());
        if (value == null && !optional) {
            throw new IllegalArgumentException(
                    String.format("Method '%s' is missing metric '%s'", method.getName(), m.value()));
        }

        if (value == null) {
            // not set but optional
            continue;
        }

        try {
            method.invoke(object, value);
        } catch (final IllegalArgumentException e) {
            // provide a better message
            throw new IllegalArgumentException(String.format("Failed to call '%s' (%s) with method '%s'", value,
                    value.getClass().getName(), method.getName()), e);
        } catch (IllegalAccessException | InvocationTargetException e) {
            throw new RuntimeException(e);
        }
    }

    return object;
}

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From source file:org.grouplens.grapht.LifecycleManager.java

/**
 * Register a component with the lifecycle manager.  The component will be torn down when the lifecycle manager
 * is closed, using whatever teardown the lifecycle manager institutes.
 *
 * @param instance The component to register.
 *//*from w w  w.java  2s.co m*/
public void registerComponent(Object instance) {
    if (instance == null) {
        return;
    }

    if (instance instanceof AutoCloseable) {
        actions.add(new CloseAction((AutoCloseable) instance));
    }
    for (Method m : MethodUtils.getMethodsListWithAnnotation(instance.getClass(), PreDestroy.class)) {
        actions.add(new PreDestroyAction(instance, m));
    }
}

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