/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.apache.gora.dynamodb.store;

import org.apache.gora.persistency.Persistent;
import org.apache.gora.persistency.impl.PersistentBase;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class DynamoDBFactory {

  /** Helper to write useful information into the logs. */
  public static final Logger LOG = LoggerFactory
      .getLogger(DynamoDBFactory.class);

  @SuppressWarnings("unchecked")
  public static <K, T extends Persistent> IDynamoDB<K, T> buildDynamoDBStore(
      DynamoDBUtils.DynamoDBType serType) {
    final IDynamoDB<K, T> ds;
    switch (serType) {
      case DYNAMO:
        ds = new DynamoDBNativeStore<K, T>();
        LOG.debug("Using DynamoDB based serialization mode.");
        break;
      case AVRO:
        ds = (IDynamoDB<K, T>) new DynamoDBAvroStore<K, PersistentBase>();
        LOG.debug("Using Avro based serialization mode.");
        break;
      default:
        throw new IllegalStateException("Serialization mode not supported.");
    }
    return ds;
  }
}