/*
 * 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.contexts;

import org.jboss.weld.context.BoundContext;
import org.jboss.weld.contexts.beanstore.BoundBeanStore;

/**
 * Base class for contexts using a thread local to store a bound bean context
 *
 * @author Pete Muir
 */
public abstract class AbstractBoundContext<S> extends AbstractManagedContext implements BoundContext<S> {

    private final ThreadLocal<BoundBeanStore> beanStore;

    public AbstractBoundContext(String contextId, boolean multithreaded) {
        super(contextId, multithreaded);
        this.beanStore = new ThreadLocal<BoundBeanStore>();
    }

    /**
     * Gets the bean store
     *
     * @returns The bean store
     */
    protected BoundBeanStore getBeanStore() {
        return beanStore.get();
    }

    /**
     * Sets the bean store
     *
     * @param beanStore The bean store
     */
    protected void setBeanStore(BoundBeanStore beanStore) {
        if (beanStore == null) {
            this.beanStore.remove();
        } else {
            this.beanStore.set(beanStore);
        }
    }

    @Override
    public void cleanup() {
        super.cleanup();
        beanStore.remove();
    }

    @Override
    public void activate() {
        super.activate();
        getBeanStore().attach();
    }

    @Override
    public void deactivate() {
        getBeanStore().detach();
        super.deactivate();
    }

    public boolean dissociate(S storage) {
        if (getBeanStore() != null) {
            try {
                setBeanStore(null);
                return true;
            } finally {
                cleanup();
            }
        } else {
            return false;
        }
    }
}