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/*
 * Copyright (c) 2008-2016, Hazelcast, Inc. All Rights Reserved.
 *
 * 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 com.hazelcast.hibernate.region;

import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.hibernate.RegionCache;
import com.hazelcast.hibernate.access.NonStrictReadWriteAccessDelegate;
import com.hazelcast.hibernate.access.ReadOnlyAccessDelegate;
import com.hazelcast.hibernate.access.ReadWriteAccessDelegate;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.spi.CacheDataDescription;
import org.hibernate.cache.spi.NaturalIdRegion;
import org.hibernate.cache.spi.access.AccessType;
import org.hibernate.cache.spi.access.NaturalIdRegionAccessStrategy;

import java.util.Properties;


/**
 * The type Hazelcast natural id region.
 *
 * @param  NaturalIdRegionCache
 */
public class HazelcastNaturalIdRegion
        extends AbstractTransactionalDataRegion
        implements NaturalIdRegion {

    /**
     * Instantiates a new Hazelcast natural id region.
     *
     * @param instance   the instance
     * @param regionName the region name
     * @param props      the props
     * @param metadata   the metadata
     * @param cache      the cache
     */
    public HazelcastNaturalIdRegion(final HazelcastInstance instance, final String regionName,
                                    final Properties props, final CacheDataDescription metadata,
                                    final Cache cache) {
        super(instance, regionName, props, metadata, cache);
    }

    @Override
    public NaturalIdRegionAccessStrategy buildAccessStrategy(final AccessType accessType) throws CacheException {
        if (AccessType.READ_ONLY.equals(accessType)) {
            return new NaturalIdRegionAccessStrategyAdapter(
                    new ReadOnlyAccessDelegate(this, props));
        }
        if (AccessType.NONSTRICT_READ_WRITE.equals(accessType)) {
            return new NaturalIdRegionAccessStrategyAdapter(
                    new NonStrictReadWriteAccessDelegate(this, props));
        }
        if (AccessType.READ_WRITE.equals(accessType)) {
            return new NaturalIdRegionAccessStrategyAdapter(
                    new ReadWriteAccessDelegate(this, props));
        }
        throw new CacheException("AccessType \"" + accessType + "\" is not currently supported by Hazelcast.");
    }
}