Scala + Rome で RSS 出力

gistfile1.scala

package com.fourseasonszoo.niboshi

import com.sun.syndication.io._
import com.sun.syndication.feed.synd._
import scala.collection.JavaConverters._
import org.scala_tools.time.Imports._
import scalax.io._
import java.io.StringWriter

object Main extends App {
  import Factories._

  val feed = createFeed("rss_2.0", "sample feed", "http://fourseasonszoo.com", "Hello Rock'n Roll City",
    List(
      createEntry("Tokyo", "http://fourseasonszoo.com/tokyo", "Hello, Tokyo city!"),
      createEntry("Yokohama", "http://fourseasonszoo.com/yokohama", "Hello, Yokohama city!")
    )
  )

  val output = new SyndFeedOutput
  val writer = new StringWriter
  output.output(feed, writer)
  println(writer.toString)
}

object Factories {

  def createFeed(feedType: String, title: String, link: String, description: String, entries: List[SyndEntry]) = {
    val f = new SyndFeedImpl
    f.setFeedType(feedType)
    f.setTitle(title)
    f.setLink(link)
    f.setDescription(description)
    f.setEntries(entries.asJava)
    f
  }

  def createEntry(title: String, link: String, description: String) = {
    val e = new SyndEntryImpl
    e.setTitle(title)
    e.setLink(link)
    e.setPublishedDate(DateTime.now.toDate)
    e.setDescription(createDescription(description))
    e
  }

  def createDescription(value: String) = {
    val d = new SyndContentImpl
    d.setType("text/plain")
    d.setValue(value)
    d
  }
}