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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:       ModelUtility.java
 * author:     Jon Iles
 * copyright:  (c) Packwood Software 2022
 * date:       2022-08-19
 */

/*
 * 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 java.util.List;

import net.sf.mpxj.Duration;
import net.sf.mpxj.FieldType;
import net.sf.mpxj.Rate;
import net.sf.mpxj.Relation;

/**
 * Common code used to create MPX task and resource models.
 */
final class ModelUtility
{
   /**
    * Determine if a field is populated with a non-default value.
    *
    * @param field field type
    * @param value field value
    * @return true if the field has a non-default value
    */
   @SuppressWarnings("unchecked") public static boolean isFieldPopulated(FieldType field, Object value)
   {
      if (value == null)
      {
         return false;
      }

      boolean populated;
      switch (field.getDataType())
      {
         case STRING:
         {
            populated = !(value instanceof String) || !((String) value).isEmpty();
            break;
         }

         case NUMERIC:
         case CURRENCY:
         {
            populated = ((Number) value).doubleValue() != 0.0;
            break;
         }

         case DURATION:
         case WORK:
         {
            populated = !(value instanceof Duration) || ((Duration) value).getDuration() != 0.0;
            break;
         }

         case RATE:
         {
            populated = ((Rate) value).getAmount() != 0.0;
            break;
         }

         case BOOLEAN:
         {
            populated = ((Boolean) value).booleanValue();
            break;
         }

         case RELATION_LIST:
         {
            populated = !((List) value).isEmpty();
            break;
         }

         default:
         {
            populated = true;
            break;
         }
      }

      return populated;
   }
}