/*
 * Copyright © 2017 the original authors (http://cereebro.io)
 *
 * 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.
 */
package io.cereebro.snitch.detect.annotation;

import java.util.Arrays;
import java.util.HashSet;
import java.util.Map;
import java.util.Set;

import io.cereebro.core.Component;
import io.cereebro.core.Consumer;
import io.cereebro.core.Relationship;
import io.cereebro.core.annotation.ConsumerHint;

/**
 * Detects {@link Consumer} relationships based on Spring beans annotated with
 * {@link ConsumerHint}.
 * 
 * @author michaeltecourt
 */
public class ConsumerHintAnnotationRelationshipDetector extends AnnotationRelationshipDetector<ConsumerHint> {

    /**
     * Detects {@link Consumer} relationships based on Spring beans annotated
     * with {@link ConsumerHint}.
     */
    public ConsumerHintAnnotationRelationshipDetector() {
        super(ConsumerHint.class);
    }

    @Override
    protected Set<Relationship> extractFromAnnotation(ConsumerHint annotation) {
        Component consumer = Component.of(annotation.name(), annotation.type());
        return new HashSet<>(Arrays.asList(Consumer.by(consumer)));
    }

    @Override
    protected Set<Relationship> extractFromAnnotationAttributes(Map<String, Object> annotationAttributes) {
        String name = String.class.cast(annotationAttributes.get("name"));
        String type = String.class.cast(annotationAttributes.get("type"));
        Consumer consumer = Consumer.by(Component.of(name, type));
        return new HashSet<>(Arrays.asList(consumer));
    }

}