/*
 * JBoss, Home of Professional Open Source
 * Copyright 2010, 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.contexts.beanstore;

import static org.jboss.weld.util.reflection.Reflections.cast;

import java.util.Iterator;
import java.util.Map;
import java.util.Set;

import org.jboss.weld.context.api.ContextualInstance;
import org.jboss.weld.serialization.spi.BeanIdentifier;

public abstract class AbstractMapBackedBeanStore implements BeanStore {

    protected abstract Map<BeanIdentifier, Object> delegate();

    @Override
    public <T> ContextualInstance<T> get(BeanIdentifier id) {
        return cast(delegate().get(id));
    }

    public void clear() {
        delegate().clear();
    }

    @Override
    public boolean contains(BeanIdentifier id) {
        return delegate().containsKey(id);
    }

    @Override
    public <T> ContextualInstance<T> remove(BeanIdentifier id) {
        return cast(delegate().remove(id));
    }

    @Override
    public boolean equals(Object obj) {
        if (obj instanceof AbstractMapBackedBeanStore) {
            AbstractMapBackedBeanStore that = (AbstractMapBackedBeanStore) obj;
            return this.delegate().equals(that.delegate());
        } else {
            return false;
        }
    }

    @Override
    public int hashCode() {
        return delegate().hashCode();
    }

    public Set<BeanIdentifier> getContextualIds() {
        return delegate().keySet();
    }

    @Override
    public <T> void put(BeanIdentifier id, ContextualInstance<T> beanInstance) {
        delegate().put(id, beanInstance);
    }

    @Override
    public String toString() {
        return "holding " + delegate().size() + " instances";
    }

    @Override
    public Iterator<BeanIdentifier> iterator() {
        return delegate().keySet().iterator();
    }

}