ROME을 활용해서 Feed 생성하기

ROME과 Spring을 활용해서 Feed를 생성하는 소스입니다. 블로그 시스템을 개발하거나 기존 게시판 서비스에서 Feed를 만들어서 외부에 공유해 주기위해서 아래 소스들을 활용하면 원하시는 Feed를 생성할 수 있을 것입니다.
ROME이 여러모로 좋은 오픈소스로 활용되는 것 같네요. 좀더 분석해서 필요한 기능들을 공유할께요.
필요한 라이브러리는 ROME 1.0, JDOM 1.0이 필요합니다.

1. Feed 생성 소스

package client;


import java.util.ArrayList;

import java.util.List;


import org.apache.commons.lang.StringUtils;

import org.apache.commons.logging.Log;

import org.apache.commons.logging.LogFactory;


import com.mimul.DataFacade;

import com.mimul.domain.Category;

import com.mimul.domain.Entry;

import com.mimul.domain.SiteConfig;

import com.sun.syndication.feed.synd.SyndCategory;

import com.sun.syndication.feed.synd.SyndCategoryImpl;

import com.sun.syndication.feed.synd.SyndContent;

import com.sun.syndication.feed.synd.SyndContentImpl;

import com.sun.syndication.feed.synd.SyndEntry;

import com.sun.syndication.feed.synd.SyndEntryImpl;

import com.sun.syndication.feed.synd.SyndFeed;

import com.sun.syndication.feed.synd.SyndFeedImpl;


public class CreateFeed 

{

	private final Log log = LogFactory.getLog(this.getClass());

	private DataFacade dataFacade;


	public void setDataFacade(DataFacade dataFacade) {

		this.dataFacade = dataFacade;

	}

	

	public SyndFeed getFeed(String type)

	{

		SyndFeed feed = null;

		Entry post = null;

		List<Entry> recentEntries = null;

		List<SyndEntry> entries = null;

		List<SyndCategory> categories = null;

		StringBuilder sb = null;

		

		try {

			feed = new SyndFeedImpl();

			feed.setFeedType(type); //rss_2.0

			feed.setTitle("Mimul's Developer World");

			feed.setLink("http://www.mimul.com/");

			feed.setDescription("Java Ecxamples Code");

			entries = new ArrayList<SyndEntry>();

			

			post = new Entry();

			post.setType("post");

			post.setEntryStatus("publish");

			// 데이터 베이스에 저장된 엔트리를 가져온다

			recentEntries = dataFacade.getEntryPage(post, 

			    10, 0, null, null).getItems();

			

			for (Entry entry:recentEntries) {

			SyndEntry syndEntry = new SyndEntryImpl();

			syndEntry.setTitle(entry.getTitle());

			String link = null;

			if(StringUtils.isNotBlank(entry.getName())) {

			   link = "http://www.mimul.com" + "/post/" + 

			   entry.getName() + ".html";

			}else{

			   link = "http://www.mimul.com" + "/post/id/" + 

			      entry.getId() + ".html";

			}

			syndEntry.setLink(link);

			syndEntry.setAuthor(entry.getAuthor().getNickname());

			syndEntry.setPublishedDate(entry.getPostTime());

			categories = new ArrayList<SyndCategory>();

			// 카테고리 정보를 가져온다

			for(Category category:entry.getCategories()) {

			  SyndCategory syndCategory = new SyndCategoryImpl();

			  syndCategory.setName(category.getName());

			  syndCategory.setTaxonomyUri("http://www.mimul.com" +

			       "/category/" + category.getName() + "/");

			}

			syndEntry.setCategories(categories);

			SyndContent content = new SyndContentImpl();

			content.setType("text/html");

			sb = new StringBuilder();

			sb.append(entry.getSummary())

			  .append("<p>").append("<a href=\"").append(link)

			  .append("\">[more..]</a></p>");

			content.setValue(sb.toString());

			syndEntry.setDescription(content);

			entries.add(syndEntry);

			}

			feed.setEntries(entries);

		} catch (Exception e) {

			log.error(e);

		}

		return feed;

	}

}

2. Servlet 소스

public void doPost(HttpServletRequest request, 

      HttpServletResponse response)

		throws ServletException, IOException {

	SyndFeedOutput output = null;

	try {

		SyndFeed feed = getCreateFeed().getFeed("rss_2.0");

		feed.setFeedType("rss_2.0");

	

		response.setContentType("application/xml; charset=UTF-8");

		response.setHeader("Pragma","No-Cache");

		response.setHeader("Cache-Control","No-Cache");

		response.setDateHeader("Expires",0);

		

		output = new SyndFeedOutput();

		output.output(feed, response.getWriter());

	} catch (FeedException e) {

		log.error(e);

		response.sendError(

		    HttpServletResponse.SC_INTERNAL_SERVER_ERROR, 

		   "FEED 생성 오류");

	}

}

private CreateFeed getCreateFeed() {

	return (CreateFeed) WebApplicationContextUtils.

	  getWebApplicationContext(getServletConfig()

	  .getServletContext()).getBean("createFeed");

}