/*
 * JBoss, Home of Professional Open Source
 * Copyright 2008, Red Hat, Inc., and individual contributors
 * by the @authors tag. See the copyright.txt in the distribution for a
 * full listing of individual 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 org.jboss.weld.resolution;

import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.Set;

import javax.enterprise.inject.spi.Decorator;

import org.jboss.weld.manager.BeanManagerImpl;
import org.jboss.weld.util.Beans;

/**
 * @author Pete Muir
 */
public class TypeSafeDecoratorResolver extends AbstractTypeSafeBeanResolver<Decorator<?>, List<Decorator<?>>> {

    private final AssignabilityRules rules;

    public TypeSafeDecoratorResolver(BeanManagerImpl manager, Iterable<Decorator<?>> decorators) {
        super(manager, decorators);
        this.rules = DelegateInjectionPointAssignabilityRules.instance();
    }

    @Override
    protected boolean matches(Resolvable resolvable, Decorator<?> bean) {
        return rules.matches(Collections.singleton(bean.getDelegateType()), resolvable.getTypes())
                && Beans.containsAllQualifiers(QualifierInstance.of(bean.getDelegateQualifiers(), getStore()), resolvable.getQualifiers())
                && getBeanManager().getEnabled().isDecoratorEnabled(bean.getBeanClass());
    }

    @Override
    protected Iterable<? extends Decorator<?>> getAllBeans(Resolvable resolvable) {
        return getAllBeans();
    }

    @Override
    protected List<Decorator<?>> sortResult(Set<Decorator<?>> matchedDecorators) {
        List<Decorator<?>> sortedDecorators = new ArrayList<Decorator<?>>(matchedDecorators);
        Collections.sort(sortedDecorators, getBeanManager().getEnabled().getDecoratorComparator());
        return sortedDecorators;
    }
}