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com.hfg xml, html, svg, and bioinformatics utility library
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package com.hfg.units;


import java.util.HashMap;
import java.util.Map;

//------------------------------------------------------------------------------
/**
 Metric System of Units.
 
 @author J. Alex Taylor, hairyfatguy.com
 
 */
//------------------------------------------------------------------------------
// com.hfg XML/HTML Coding Library
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
//
// J. Alex Taylor, President, Founder, CEO, COO, CFO, OOPS hairyfatguy.com
// [email protected]
//------------------------------------------------------------------------------

class MetricSystem extends MeasurementSystem
{
   private Map mBaseUnitMap;

   private static MetricSystem sInstance;

   //---------------------------------------------------------------------------
   protected MetricSystem()
   {
      super("Metric system",    "Metric");
   }

   //###########################################################################
   // PUBLIC METHODS
   //###########################################################################

   //---------------------------------------------------------------------------
   public static synchronized MetricSystem getInstance()
   {
      if (null == sInstance)
      {
         sInstance = new MetricSystem();
      }

      return sInstance;
   }

   //###########################################################################
   // PROTECTED METHODS
   //###########################################################################

   //---------------------------------------------------------------------------
   protected synchronized Map getBaseUnitMap()
   {
      if (null == mBaseUnitMap)
      {
         mBaseUnitMap = new HashMap<>();
         mBaseUnitMap.put(QuantityType.LENGTH, LengthUnit.meter);
         mBaseUnitMap.put(QuantityType.MASS, MassUnit.gram);
         mBaseUnitMap.put(QuantityType.TIME, TimeUnit.second);
         mBaseUnitMap.put(QuantityType.TEMPERATURE, TemperatureUnit.Celcius);
         mBaseUnitMap.put(QuantityType.AMOUNT_OF_SUBSTANCE, AmountOfSubstanceUnit.mole);
         mBaseUnitMap.put(QuantityType.ELECTRIC_CURRENT, ElectricCurrentUnit.ampere);
         mBaseUnitMap.put(QuantityType.LUMINOUS_INTENSITY, LuminousIntensityUnit.candela);
         mBaseUnitMap.put(QuantityType.CATALYTIC_ACTIVITY, CatalyticActivityUnit.katal);
         mBaseUnitMap.put(QuantityType.AREA, AreaUnit.sq_meter);
/*
      mBaseUnitMap.put(BaseQuantity.AMOUNT_OF_SUBSTANCE, SubstanceUnit.mole);
      mBaseUnitMap.put(BaseQuantity.ELECTRIC_CURRENT, CurrentUnit.ampere);
*/
      }

      return mBaseUnitMap;
   }
}