/*
 * JBoss, Home of Professional Open Source.
 * Copyright 2014, Red Hat, Inc., and individual contributors
 * as indicated by the @author tags. See the copyright.txt file in the
 * distribution for a full listing of individual contributors.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

package org.wildfly.clustering.ejb.infinispan;

import java.io.Serializable;
import java.util.AbstractMap.SimpleImmutableEntry;
import java.util.Map;
import java.util.function.Predicate;

import org.infinispan.metadata.Metadata;
import org.infinispan.notifications.cachelistener.filter.CacheEventFilter;
import org.infinispan.notifications.cachelistener.filter.EventType;

/**
 * Filters a cache for entries specific to a particular bean.
 * @author Paul Ferraro
 */
public class BeanFilter<I> implements CacheEventFilter<Object, Object>, Predicate<Object>, Serializable {
    private static final long serialVersionUID = -1079989480899595045L;

    private final String beanName;

    public BeanFilter(String beanName) {
        this.beanName = beanName;
    }

    @Override
    public boolean test(Object object) {
        if (object instanceof Map.Entry) {
            Map.Entry<?, ?> entry = (Map.Entry<?, ?>) object;
            if (entry.getKey() instanceof BeanKey) {
                Object value = entry.getValue();
                if (value instanceof BeanEntry) {
                    return this.beanName.equals(((BeanEntry<?>) value).getBeanName());
                }
            }
        }
        return false;
    }

    @Override
    public boolean accept(Object key, Object oldValue, Metadata metaData, Object newValue, Metadata newMetaData, EventType type) {
        return this.test(new SimpleImmutableEntry<>(key, oldValue)) || this.test(new SimpleImmutableEntry<>(key, newValue));
    }
}