MetricCollectorBean.java

/*
 * Copyright 2016 Hammock and its contributors
 *
 * 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 ws.ament.hammock.rabbitmq;

import com.rabbitmq.client.MetricsCollector;
import org.apache.deltaspike.core.api.literal.DefaultLiteral;

import javax.enterprise.context.ApplicationScoped;
import javax.enterprise.context.spi.CreationalContext;
import javax.enterprise.inject.spi.Bean;
import javax.enterprise.inject.spi.InjectionPoint;
import javax.enterprise.inject.spi.InjectionTarget;
import java.lang.annotation.Annotation;
import java.lang.reflect.Type;
import java.util.Collections;
import java.util.HashSet;
import java.util.Set;

import static java.util.Arrays.asList;
import static java.util.Collections.singleton;


abstract class MetricCollectorBean implements Bean<MetricsCollector> {

    private final InjectionTarget<? extends MetricsCollector> injectionTarget;

    protected MetricCollectorBean(InjectionTarget<? extends MetricsCollector> injectionTarget) {
        this.injectionTarget = injectionTarget;
    }

    @Override
    public Set<InjectionPoint> getInjectionPoints() {
        return injectionTarget.getInjectionPoints();
    }

    @Override
    public boolean isNullable() {
        return false;
    }

    @Override
    public void destroy(MetricsCollector instance, CreationalContext<MetricsCollector> creationalContext) {
        creationalContext.release();
    }

    @Override
    public Set<Type> getTypes() {
        return new HashSet<>(asList(Object.class, MetricsCollector.class, getBeanClass()));
    }

    @Override
    public Set<Annotation> getQualifiers() {
        return singleton(new DefaultLiteral());
    }

    @Override
    public Class<? extends Annotation> getScope() {
        return ApplicationScoped.class;
    }

    @Override
    public String getName() {
        return "";
    }

    @Override
    public Set<Class<? extends Annotation>> getStereotypes() {
        return Collections.emptySet();
    }

    @Override
    public boolean isAlternative() {
        return false;
    }
}