/*
 * file:       MPXResourceField.java
 * author:     Jon Iles
 * copyright:  (c) Packwood Software 2005
 * date:       20-Feb-2006
 */

/*
 * 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.
 */

package net.sf.mpxj.mpx;

import net.sf.mpxj.ResourceField;

/**
 * Utility class used to map between the integer values held in an MPX file
 * to represent a task field, and the enumerated type used to represent
 * task fields in MPXJ.
 */
final class MPXResourceField
{
   /**
    * Retrieve an instance of the ResourceField class based on the data read from an
    * MPX file.
    *
    * @param value value from an MS Project file
    * @return instance of this class
    */
   public static ResourceField getMpxjField(int value)
   {
      ResourceField result = null;

      if (value >= 0 && value < MPX_MPXJ_ARRAY.length)
      {
         result = MPX_MPXJ_ARRAY[value];
      }

      return (result);
   }

   /**
    * Retrieve the integer value used to represent a resource field in an 
    * MPX file.
    * 
    * @param value MPXJ resource field value
    * @return MPX field value
    */
   public static int getMpxField(int value)
   {
      int result = 0;

      if (value >= 0 && value < MPXJ_MPX_ARRAY.length)
      {
         result = MPXJ_MPX_ARRAY[value];
      }

      return (result);

   }

   public static final int MAX_FIELDS = 52;

   private static final ResourceField[] MPX_MPXJ_ARRAY = new ResourceField[MAX_FIELDS];

   static
   {
      MPX_MPXJ_ARRAY[45] = ResourceField.ACCRUE_AT;
      MPX_MPXJ_ARRAY[32] = ResourceField.ACTUAL_COST;
      MPX_MPXJ_ARRAY[22] = ResourceField.ACTUAL_WORK;
      MPX_MPXJ_ARRAY[48] = ResourceField.BASE_CALENDAR;
      MPX_MPXJ_ARRAY[31] = ResourceField.BASELINE_COST;
      MPX_MPXJ_ARRAY[21] = ResourceField.BASELINE_WORK;
      MPX_MPXJ_ARRAY[4] = ResourceField.CODE;
      MPX_MPXJ_ARRAY[30] = ResourceField.COST;
      MPX_MPXJ_ARRAY[44] = ResourceField.COST_PER_USE;
      MPX_MPXJ_ARRAY[34] = ResourceField.COST_VARIANCE;
      MPX_MPXJ_ARRAY[11] = ResourceField.EMAIL_ADDRESS;
      MPX_MPXJ_ARRAY[3] = ResourceField.GROUP;
      MPX_MPXJ_ARRAY[40] = ResourceField.ID;
      MPX_MPXJ_ARRAY[2] = ResourceField.INITIALS;
      MPX_MPXJ_ARRAY[51] = ResourceField.LINKED_FIELDS;
      MPX_MPXJ_ARRAY[41] = ResourceField.MAX_UNITS;
      MPX_MPXJ_ARRAY[1] = ResourceField.NAME;
      MPX_MPXJ_ARRAY[50] = ResourceField.OBJECTS;
      MPX_MPXJ_ARRAY[46] = ResourceField.OVERALLOCATED;
      MPX_MPXJ_ARRAY[43] = ResourceField.OVERTIME_RATE;
      MPX_MPXJ_ARRAY[24] = ResourceField.OVERTIME_WORK;
      MPX_MPXJ_ARRAY[47] = ResourceField.PEAK;
      MPX_MPXJ_ARRAY[26] = ResourceField.PERCENT_WORK_COMPLETE;
      MPX_MPXJ_ARRAY[33] = ResourceField.REMAINING_COST;
      MPX_MPXJ_ARRAY[23] = ResourceField.REMAINING_WORK;
      MPX_MPXJ_ARRAY[42] = ResourceField.STANDARD_RATE;
      MPX_MPXJ_ARRAY[5] = ResourceField.TEXT1;
      MPX_MPXJ_ARRAY[6] = ResourceField.TEXT2;
      MPX_MPXJ_ARRAY[7] = ResourceField.TEXT3;
      MPX_MPXJ_ARRAY[8] = ResourceField.TEXT4;
      MPX_MPXJ_ARRAY[9] = ResourceField.TEXT5;
      MPX_MPXJ_ARRAY[49] = ResourceField.UNIQUE_ID;
      MPX_MPXJ_ARRAY[20] = ResourceField.WORK;
      MPX_MPXJ_ARRAY[25] = ResourceField.WORK_VARIANCE;
   }

   private static final int[] MPXJ_MPX_ARRAY = new int[ResourceField.MAX_VALUE];
   static
   {
      for (int loop = 0; loop < MPX_MPXJ_ARRAY.length; loop++)
      {
         ResourceField field = MPX_MPXJ_ARRAY[loop];
         if (field != null)
         {
            MPXJ_MPX_ARRAY[field.getValue()] = loop;
         }
      }
   }
}