FluentAnnotatedImpl.java

package com.lexicalscope.fluentreflection;

import static ch.lambdaj.Lambda.*;
import static com.lexicalscope.fluentreflection.ReflectionMatchers.reflectingOn;
import static org.hamcrest.Matchers.hasItem;

import java.lang.annotation.Annotation;
import java.lang.reflect.AnnotatedElement;
import java.util.List;

import org.hamcrest.Matcher;

/*
 * Copyright 2011 Tim Wood
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
final class FluentAnnotatedImpl implements FluentAnnotated {
    private final ReflectedTypeFactory reflectedTypeFactory;
    private final AnnotatedElement annotatedElement;

    public FluentAnnotatedImpl(
            final ReflectedTypeFactory reflectedTypeFactory,
            final AnnotatedElement annotatedElement) {
        this.reflectedTypeFactory = reflectedTypeFactory;
        this.annotatedElement = annotatedElement;
    }

    @Override public FluentClass<?> annotation(final Matcher<? super FluentClass<?>> annotationMatcher) {
        return selectFirst(annotations(), annotationMatcher);
    }

    @Override public <A extends Annotation> A annotation(final Class<A> annotationClass) {
        return annotatedElement.getAnnotation(annotationClass);
    }

    @Override public boolean annotatedWith(final Matcher<? super FluentAccess<?>> annotationMatcher) {
        return hasItem(annotationMatcher).matches(annotations());
    }

    @Override public boolean annotatedWith(final Class<? extends Annotation> annotationClass) {
        return annotatedWith(reflectingOn(annotationClass));
    }

    private List<FluentClass<?>> annotations() {
        return convert(
                convert(annotatedElement.getAnnotations(), new ConvertAnnotationToClass()),
                new ConvertClassToReflectedType(reflectedTypeFactory));
    }
}