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Library that provides facilities to allow project information to be manipulated in Java and .Net. Supports a range of data formats: Microsoft Project Exchange (MPX), Microsoft Project (MPP,MPT), Microsoft Project Data Interchange (MSPDI XML), Microsoft Project Database (MPD), Planner (XML), Primavera (PM XML, XER, and database), Asta Powerproject (PP, MDB), Asta Easyplan (PP), Phoenix Project Manager (PPX), FastTrack Schedule (FTS), and the Standard Data Exchange Format (SDEF).

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/*
 * file:       MPPConstraintField.java
 * author:     Jon Iles
 * copyright:  (c) Packwood Software 2014
 * date:       24/10/2014
 */

/*
 * 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.common;

import java.util.Arrays;

import net.sf.mpxj.ConstraintField;
import net.sf.mpxj.FieldType;

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

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

      return (result);
   }

   /**
    * Retrieve the ID of a field, as used by MS Project.
    *
    * @param value field instance
    * @return field ID
    */
   public static int getID(FieldType value)
   {
      return (ID_ARRAY[value.getValue()]);
   }

   private static final int MAX_VALUE = 10;

   private static final ConstraintField[] FIELD_ARRAY = new ConstraintField[MAX_VALUE];

   static
   {
      FIELD_ARRAY[9] = ConstraintField.UNIQUE_ID;
      FIELD_ARRAY[6] = ConstraintField.TASK1;
      FIELD_ARRAY[7] = ConstraintField.TASK2;
   }

   private static final int[] ID_ARRAY = new int[ConstraintField.MAX_VALUE];
   static
   {
      Arrays.fill(ID_ARRAY, -1);

      for (int loop = 0; loop < FIELD_ARRAY.length; loop++)
      {
         ConstraintField constraintField = FIELD_ARRAY[loop];
         if (constraintField != null)
         {
            ID_ARRAY[constraintField.getValue()] = loop;
         }
      }
   }

   public static final int CONSTRAINT_FIELD_BASE = 0xD400000;
}