content: // 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
  // 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.cloud.util;
  
  import com.cloud.storage.Storage.StoragePoolType;
  
  import javax.persistence.AttributeConverter;
  import javax.persistence.Converter;
  
  /**
   * Converts {@link StoragePoolType} to and from {@link String} using {@link StoragePoolType#name()}.
   *
   * @author mprokopchuk
   */
  @Converter
  public class StoragePoolTypeConverter implements AttributeConverter<StoragePoolType, String> {
      @Override
      public String convertToDatabaseColumn(StoragePoolType attribute) {
          return attribute != null ? attribute.name() : null;
      }
  
      @Override
      public StoragePoolType convertToEntityAttribute(String dbData) {
          return dbData != null ? StoragePoolType.valueOf(dbData) : null;
      }
  }
  