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.Arrays;
  
  import com.rometools.rome.feed.synd.SyndEntry;
  import com.rometools.rome.feed.synd.SyndFeed;
  import org.apache.camel.Category;
  import org.apache.camel.Exchange;
  import org.apache.camel.Processor;
  import org.apache.camel.Producer;
  import org.apache.camel.component.feed.FeedComponent;
  import org.apache.camel.component.feed.FeedEndpoint;
  import org.apache.camel.component.feed.FeedPollingConsumer;
  import org.apache.camel.spi.EndpointServiceLocation;
  import org.apache.camel.spi.UriEndpoint;
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  /**
   * Poll RSS feeds.
   */
  @UriEndpoint(firstVersion = "2.0.0", scheme = "rss", extendsScheme = "atom", title = "RSS",
               syntax = "rss:feedUri", consumerOnly = true, category = { Category.DOCUMENT }, lenientProperties = true,
               headersClass = RssConstants.class)
  public class RssEndpoint extends FeedEndpoint implements EndpointServiceLocation {
      protected static final Logger LOG = LoggerFactory.getLogger(RssEndpoint.class);
  
      public RssEndpoint() {
      }
  
      public RssEndpoint(String endpointUri, FeedComponent component, String feedUri) {
          super(endpointUri, component, feedUri);
      }
  
      @Override
      public String getServiceUrl() {
          return feedUri;
      }
  
      @Override
      public String getServiceProtocol() {
          return "rss";
      }
  
      @Override
      public Producer createProducer() throws Exception {
          throw new UnsupportedOperationException("RssProducer is not implemented");
      }
  
      @Override
      public Exchange createExchange(Object feed) {
          Exchange exchange = createExchangeWithFeedHeader(feed, RssConstants.RSS_FEED);
          exchange.getIn().setBody(feed);
          return exchange;
      }
  
      @Override
      public Exchange createExchange(Object feed, Object entry) {
          Exchange exchange = createExchangeWithFeedHeader(feed, RssConstants.RSS_FEED);
          SyndFeed newFeed;
          try {
              newFeed = (SyndFeed) ((SyndFeed) feed).clone();
              newFeed.setEntries(Arrays.asList((SyndEntry) entry));
          } catch (CloneNotSupportedException e) {
              LOG.debug("Could not create a new feed. This exception will be ignored.", e);
              newFeed = null;
          }
          exchange.getIn().setBody(newFeed);
          return exchange;
      }
  
      @Override
      protected FeedPollingConsumer createEntryPollingConsumer(
              FeedEndpoint feedEndpoint, Processor processor, boolean throttleEntries)
              throws Exception {
          RssEntryPollingConsumer answer = new RssEntryPollingConsumer(this, processor, throttleEntries);
          configureConsumer(answer);
          return answer;
      }
  
      @Override
      protected FeedPollingConsumer createPollingConsumer(FeedEndpoint feedEndpoint, Processor processor) throws Exception {
          RssPollingConsumer answer = new RssPollingConsumer(this, processor);
          configureConsumer(answer);
          return answer;
      }
  }
  