| /** |
| * 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.Date; |
| |
| import com.sun.syndication.feed.synd.SyndEntry; |
| |
| import org.apache.camel.component.feed.EntryFilter; |
| import org.apache.camel.component.feed.FeedEndpoint; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * Filters out all entries which occur before the last time of the entry we saw (assuming |
| * entries arrive sorted in order). |
| * |
| * @version |
| */ |
| public class UpdatedDateFilter implements EntryFilter { |
| |
| private static final transient Logger LOG = LoggerFactory.getLogger(UpdatedDateFilter.class); |
| private Date lastUpdate; |
| |
| public UpdatedDateFilter(Date lastUpdate) { |
| this.lastUpdate = lastUpdate; |
| } |
| |
| public boolean isValidEntry(FeedEndpoint endpoint, Object feed, Object entry) { |
| Date updated = ((SyndEntry)entry).getUpdatedDate(); |
| if (updated == null) { |
| // never been updated so get published date |
| updated = ((SyndEntry)entry).getPublishedDate(); |
| } |
| if (updated == null) { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("No updated time for entry so assuming its valid: entry=[" + entry + "]"); |
| } |
| return true; |
| } |
| if (lastUpdate != null) { |
| if (lastUpdate.after(updated) || lastUpdate.equals(updated)) { |
| if (LOG.isDebugEnabled()) { |
| LOG.debug("Entry is older than lastupdate=[" + lastUpdate |
| + "], no valid entry=[" + entry + "]"); |
| } |
| return false; |
| } |
| } |
| lastUpdate = updated; |
| return true; |
| } |
| |
| } |