content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * 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.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * 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 org.opencms.jsp.search.config.parser.simplesearch.daterestrictions;
  
  import java.text.DateFormat;
  import java.text.SimpleDateFormat;
  import java.util.Date;
  import java.util.TimeZone;
  
  /**
   * Restriction to a date between a fixed start and end date, but only one of them has to be given.<p>
   */
  public class CmsDateRangeRestriction implements I_CmsDateRestriction {
  
      /** A constant for the Solr date format. */
      private static final DateFormat DATE_FORMAT = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss'Z'");
      static {
          DATE_FORMAT.setTimeZone(TimeZone.getTimeZone("UTC"));
      }
  
      /** The start date. */
      private Date m_from;
  
      /** The end date. */
      private Date m_to;
  
      /**
       * Creates a new instance.<p>
       *
       * @param fromDate the start date
       * @param toDate the end date
       */
      public CmsDateRangeRestriction(Date fromDate, Date toDate) {
  
          m_from = fromDate;
          m_to = toDate;
      }
  
      /**
       * @see org.opencms.jsp.search.config.parser.simplesearch.daterestrictions.I_CmsDateRestriction#getRange()
       */
      public String getRange() {
  
          return "[" + formatDate(m_from) + " TO " + formatDate(m_to) + "]";
      }
  
      /**
       * Formats the date for use in Solr range queries.<p>
       *
       * If null is passed as the date, "*" will be returned.
       *
       * @param date the date to format
       * @return the formatted date
       */
      private String formatDate(Date date) {
  
          if (date == null) {
              return "*";
          }
          return DATE_FORMAT.format(date);
      }
  
  }
  