| /** |
| * 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.dataformat.rss; |
| |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| |
| import com.sun.syndication.feed.synd.SyndFeed; |
| import org.apache.camel.Exchange; |
| import org.apache.camel.spi.DataFormat; |
| import org.apache.camel.util.ExchangeHelper; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| /** |
| * RSS DataFormat |
| * <p/> |
| * This data format supports two operations: |
| * <ul> |
| * <li>marshal = from ROME SyndFeed to XML String </li> |
| * <li>unmarshal = from XML String to ROME SyndFeed </li> |
| * </ul> |
| * <p/> |
| * Uses <a href="https://rome.dev.java.net/">ROME</a> for RSS parsing. |
| * <p/> |
| */ |
| public class RssDataFormat implements DataFormat { |
| protected static final transient Logger LOG = LoggerFactory.getLogger(RssDataFormat.class); |
| |
| public void marshal(Exchange exchange, Object body, OutputStream out) throws Exception { |
| SyndFeed feed = ExchangeHelper.convertToMandatoryType(exchange, SyndFeed.class, body); |
| String xml = RssConverter.feedToXml(feed); |
| if (xml != null) { |
| out.write(xml.getBytes()); |
| } else { |
| LOG.debug("Cannot marshal RSS feed to XML."); |
| } |
| } |
| |
| public Object unmarshal(Exchange exchange, InputStream in) throws Exception { |
| String xml = ExchangeHelper.convertToMandatoryType(exchange, String.class, in); |
| return RssConverter.xmlToFeed(xml); |
| } |
| } |