/*
 * Copyright (c) 2008-2012, Hazel Bilisim Ltd. 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.collection;

import com.hazelcast.core.HazelcastInstance;
import com.hazelcast.hibernate.region.AbstractTransactionalDataRegion;
import org.hibernate.cache.CacheDataDescription;
import org.hibernate.cache.CacheException;
import org.hibernate.cache.CollectionRegion;
import org.hibernate.cache.access.AccessType;
import org.hibernate.cache.access.CollectionRegionAccessStrategy;

import java.util.Properties;

/**
 * @author Leo Kim (lkim@limewire.com)
 */
public class HazelcastCollectionRegion extends AbstractTransactionalDataRegion implements CollectionRegion {

    public HazelcastCollectionRegion(final HazelcastInstance instance, final String regionName,
                                     final Properties props, final CacheDataDescription metadata) {
        super(instance, regionName, props, metadata);
    }

    public CollectionRegionAccessStrategy buildAccessStrategy(final AccessType accessType) throws CacheException {
        if (null == accessType) {
            throw new CacheException(
                    "Got null AccessType while attempting to build CollectionRegionAccessStrategy. This can't happen!");
        }
        if (AccessType.READ_ONLY.equals(accessType)) {
            return new ReadOnlyAccessStrategy(this, props);
        }
        if (AccessType.NONSTRICT_READ_WRITE.equals(accessType)) {
            return new NonStrictReadWriteAccessStrategy(this, props);
        }
        if (AccessType.READ_WRITE.equals(accessType)) {
            return new ReadWriteAccessStrategy(this, props);
        }
        if (AccessType.TRANSACTIONAL.equals(accessType)) {
            throw new CacheException("Transactional access is not currently supported by Hazelcast.");
        }
        throw new CacheException("Got unknown AccessType " + accessType
                + " while attempting to build CollectionRegionAccessStrategy.");
    }
}