content: /*
   * Licensed to the Apache Software Foundation (ASF) under one or more
   * contributor license agreements.  See the NOTICE file distributed with
   * this work for additional information regarding copyright ownership.
   * The ASF licenses this file to You under the Apache License, Version 2.0
   * (the "License"); you may not use this file except in compliance with
   * the License.  You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.apache.camel.component.rss;
  
  import java.util.Comparator;
  import java.util.Date;
  
  import com.rometools.rome.feed.synd.SyndEntry;
  
  public class RssDateComparator implements Comparator<SyndEntry> {
  
      @Override
      public int compare(SyndEntry s1, SyndEntry s2) {
          Date d1 = getUpdatedDate(s1);
          Date d2 = getUpdatedDate(s2);
          if (d2 != null && d1 != null) {
              return d2.compareTo(d1);
          } else {
              return 0;
          }
      }
  
      private Date getUpdatedDate(SyndEntry entry) {
          Date date = entry.getUpdatedDate();
          if (date == null) {
              date = entry.getPublishedDate();
          }
          return date;
      }
  }
  