/*
    *  Copyright 2010, 2011, 2012 Christopher Pheby
    *
    *  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 org.jadira.usertype.moneyandcurrency.moneta;
  
  import java.math.BigDecimal;
  
  import javax.money.CurrencyUnit;
  import javax.money.MonetaryAmount;
  
  import org.jadira.usertype.moneyandcurrency.legacyjdk.columnmapper.BigDecimalBigDecimalColumnMapper;
  import org.jadira.usertype.moneyandcurrency.moneta.columnmapper.StringColumnCurrencyUnitMapper;
  import org.jadira.usertype.spi.shared.AbstractMultiColumnUserType;
  import org.jadira.usertype.spi.shared.ColumnMapper;
  import org.javamoney.moneta.FastMoney;
  
  /**
   * Persists the decimal amount and currency from a FastMoney instance
   */
  public class PersistentFastMoneyAmountAndCurrency extends AbstractMultiColumnUserType<MonetaryAmount> {
  
  	private static final long serialVersionUID = 3735995469031558183L;
  
  	private static final ColumnMapper<?, ?>[] COLUMN_MAPPERS = new ColumnMapper<?, ?>[] { new StringColumnCurrencyUnitMapper(), new BigDecimalBigDecimalColumnMapper() };
  
      private static final String[] PROPERTY_NAMES = new String[]{ "currencyUnit", "amount" };
  	
  	@Override
  	protected ColumnMapper<?, ?>[] getColumnMappers() {
  		return COLUMN_MAPPERS;
  	}
  
      @Override
      protected FastMoney fromConvertedColumns(Object[] convertedColumns) {
  
          CurrencyUnit currencyUnitPart = (CurrencyUnit) convertedColumns[0];
          BigDecimal amountPart = (BigDecimal) convertedColumns[1];
          FastMoney money = FastMoney.of(amountPart, currencyUnitPart);
  
          return money;
      }
  
      @Override
      protected Object[] toConvertedColumns(MonetaryAmount value) {
  
          return new Object[] { value.getCurrency(), value.getNumber().numberValue(BigDecimal.class) };
      }
      
      @Override
  	public String[] getPropertyNames() {
  		return PROPERTY_NAMES;
  	}
  }