package net.sf.mbus4j.dataframes.datablocks;
   
   /*
    * #%L
    * mbus4j-core
    * %%
    * Copyright (C) 2009 - 2014 MBus4J
    * %%
    * mbus4j - Drivers for the M-Bus protocol - http://mbus4j.sourceforge.net/
   * Copyright (C) 2009-2014, mbus4j.sf.net, and individual contributors as indicated
   * by the @authors tag. See the copyright.txt in the distribution for a
   * full listing of individual contributors.
   * 
   * This 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 3 of
   * the License, or (at your option) any later version.
   * 
   * This software 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 software; if not, write to the Free
   * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
   * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
   * #L%
   */
  import java.text.DateFormat;
  import java.text.ParseException;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import net.sf.json.JSONObject;
  
  import net.sf.mbus4j.dataframes.datablocks.dif.DataFieldCode;
  import net.sf.mbus4j.dataframes.datablocks.vif.Vif;
  import net.sf.mbus4j.dataframes.datablocks.vif.Vife;
  
  /**
   *
   * @author arnep@users.sourceforge.net
   * @version $Id: DateDataBlock.java 162 2016-07-27 18:07:08Z arnep $
   */
  public class DateDataBlock extends DataBlock {
      // SimpleDateFormat is not thread-safe, so give one to each thread
      private static final ThreadLocal<SimpleDateFormat> ISO_8601 = new ThreadLocal<SimpleDateFormat>(){
          @Override
          protected SimpleDateFormat initialValue()
          {
              return new SimpleDateFormat("yyyy-MM-dd");
          }
      };
  
      private Date value;
  
      public DateDataBlock() {
          super();
      }
  
      @Deprecated
      public DateDataBlock(Vif vif, Vife... vifes) {
          super(DataFieldCode._16_BIT_INTEGER, vif, vifes);
      }
  
      /**
       * @return the value
       */
      public Date getValue() {
          return value;
      }
  
      @Override
      public String getValueAsString() {
          return ISO_8601.get().format(value);
      }
  
      /**
       * @param value the value to set
       */
      public void setValue(Date value) {
          this.value = value;
      }
  
      @Override
      protected void accumulateDatatoJSON(JSONObject json) {
          JSONObject jsonValue = new JSONObject();
          jsonValue.accumulate("date", ISO_8601.get().format(value));
          json.accumulate("data", jsonValue);
      }
  
      @Override
      public void fromJSON(JSONObject json) {
          super.fromJSON(json);
          try {
              JSONObject jsonValue = json.getJSONObject("data");
              value = ISO_8601.get().parse(jsonValue.getString("date"));
          } catch (ParseException ex) {
              throw new RuntimeException(ex);
         }
     }
 
     @Override
     public void setValue(String text) {
         try {
             value = DateFormat.getDateInstance().parse(text);
         } catch (ParseException ex) {
             throw new RuntimeException(ex);
         }
     }
 }