com.hfg.util.ValueImpl Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of com_hfg Show documentation
com.hfg xml, html, svg, and bioinformatics utility library
There is a newer version: 20240423
package com.hfg.util;


//------------------------------------------------------------------------------
/**
 Simple implementation of the Value interface.
 
 @author J. Alex Taylor, hairyfatguy.com
 
 */
//------------------------------------------------------------------------------
// com.hfg 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]
//------------------------------------------------------------------------------
public class ValueImpl implements Value
{
   private String  mStringValue;
   private Number  mNumberValue;
   private Boolean mBooleanValue;

   //###########################################################################
   // CONSTRUCTORS
   //###########################################################################

   //---------------------------------------------------------------------------
   public ValueImpl(Object inValue)
   {
      if (inValue != null)
      {
         if (inValue instanceof Number)
         {
            mNumberValue = (Number) inValue;
         }
         else if (inValue instanceof Boolean)
         {
            mBooleanValue = (Boolean) inValue;
         }
         else
         {
            mStringValue = inValue.toString();
         }
      }
   }

   //---------------------------------------------------------------------------
   public ValueImpl(String inValue)
   {
      mStringValue = inValue;
   }

   //---------------------------------------------------------------------------
   public ValueImpl(Number inValue)
   {
      mNumberValue = inValue;
   }

   //---------------------------------------------------------------------------
   public ValueImpl(boolean inValue)
   {
      mBooleanValue = inValue;
   }

   //---------------------------------------------------------------------------
   public ValueImpl(int inValue)
   {
      mNumberValue = inValue;
   }

   //---------------------------------------------------------------------------
   public ValueImpl(long inValue)
   {
      mNumberValue = inValue;
   }

   //---------------------------------------------------------------------------
   public ValueImpl(float inValue)
   {
      mNumberValue = inValue;
   }

   //---------------------------------------------------------------------------
   public ValueImpl(double inValue)
   {
      mNumberValue = inValue;
   }

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

   //---------------------------------------------------------------------------
   @Override
   public boolean isNull()
   {
      return (null == mStringValue
              && null == mNumberValue
              && null == mBooleanValue);
   }

   //---------------------------------------------------------------------------
   @Override
   public String toString()
   {
      return stringValue();
   }

   //---------------------------------------------------------------------------
   @Override
   public String stringValue()
   {
      String stringValue = null;
      if (mStringValue != null)
      {
         stringValue = mStringValue;
      }
      else if (mNumberValue != null)
      {
         stringValue = mNumberValue.toString();
      }
      else if (mBooleanValue != null)
      {
         stringValue = mBooleanValue.toString();
      }

      return stringValue;
   }

   //---------------------------------------------------------------------------
   @Override
   public Boolean booleanValue()
   {
      Boolean booleanValue = null;
      if (mBooleanValue != null)
      {
         booleanValue = mBooleanValue;
      }
      else if (mNumberValue != null)
      {
         booleanValue = BooleanUtil.valueOf(mNumberValue);
      }
      else if (mStringValue != null)
      {
         booleanValue = BooleanUtil.valueOf(mStringValue);
      }

      return booleanValue;
   }

   //---------------------------------------------------------------------------
   @Override
   public Integer intValue()
   {
      Integer intValue = null;
      if (mNumberValue != null)
      {
         intValue = mNumberValue.intValue();
      }
      else if (mBooleanValue != null)
      {
         intValue = (mBooleanValue ? 1 : 0);
      }
      else if (mStringValue != null)
      {
         try
         {
            intValue = Integer.valueOf(mStringValue);
         }
         catch (Exception e)
         {
            // Ignore
         }
      }

      return intValue;
   }

   //---------------------------------------------------------------------------
   @Override
   public Long longValue()
   {
      Long longValue = null;
      if (mNumberValue != null)
      {
         longValue = mNumberValue.longValue();
      }
      else if (mBooleanValue != null)
      {
         longValue = (mBooleanValue ? 1L : 0L);
      }
      else if (mStringValue != null)
      {
         try
         {
            longValue = Long.valueOf(mStringValue);
         }
         catch (Exception e)
         {
            // Ignore
         }
      }

      return longValue;
   }

   //---------------------------------------------------------------------------
   @Override
   public Float floatValue()
   {
      Float floatValue = null;
      if (mNumberValue != null)
      {
         floatValue = mNumberValue.floatValue();
      }
      else if (mBooleanValue != null)
      {
         floatValue = (mBooleanValue ? 1f : 0f);
      }
      else if (mStringValue != null)
      {
         try
         {
            floatValue = Float.valueOf(mStringValue);
         }
         catch (Exception e)
         {
            // Ignore
         }
      }

      return floatValue;
   }

   //---------------------------------------------------------------------------
   @Override
   public Double doubleValue()
   {
      Double doubleValue = null;
      if (mNumberValue != null)
      {
         doubleValue = mNumberValue.doubleValue();
      }
      else if (mBooleanValue != null)
      {
         doubleValue = (mBooleanValue ? 1d : 0d);
      }
      else if (mStringValue != null)
      {
         try
         {
            doubleValue = Double.valueOf(mStringValue);
         }
         catch (Exception e)
         {
            // Ignore
         }
      }

      return doubleValue;
   }
}