Package util.settings

Source Code of util.settings.DateProperty

/*
* TV-Browser
* Copyright (C) 04-2003 Martin Oberhauser (darras@users.sourceforge.net)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*
* CVS information:
*  $RCSfile$
*   $Source$
*     $Date: 2004-10-22 16:02:11 +0200 (Fri, 22 Oct 2004) $
*   $Author: darras $
* $Revision: 836 $
*/
package util.settings;

import devplugin.Date;

/**
*
*
* @author Til Schneider, www.murfman.de
*/
public class DateProperty extends Property {

  private Date mDefaultValue;
  private Date mCachedValue;
 
 
 
  public DateProperty(PropertyManager manager, String key,
    Date defaultValue)
  {
    super(manager, key);

    mDefaultValue = defaultValue;
    mCachedValue = null;
  }


  public Date getDefault() {
    return mDefaultValue;
  }


  public Date getDate() {
    if (mCachedValue == null) {
      String asString = getProperty();

      if (asString != null) {
        String[] splits = asString.split("-");
        if (splits.length == 3) {
          try {
            mCachedValue = new Date(Integer.parseInt(splits[0]),
                                    Integer.parseInt(splits[1]),
                                    Integer.parseInt(splits[2]));
          }
          catch(NumberFormatException exc) {
            // We use the default value
          }
        }
      }

      if (mCachedValue == null) {
        mCachedValue = mDefaultValue;
      }
    }

    return mCachedValue;
  }
 
 
  public void setDate(Date value) {
    if (value == null) {
      throw new IllegalArgumentException("You can't set a null value");
    }
   
    if (value.equals(mDefaultValue)) {
      setProperty(null);
    } else {
      String asString = value.getYear() + "-" + value.getMonth() + "-"
        + value.getDayOfMonth();
      setProperty(asString);
    }
   
    mCachedValue = value;
  }
 
 
  protected void clearCache() {
    mCachedValue = null;
  }

}
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