Dispatchの文字化け対策

myhttp.scala

import dispatch._
import com.ning.http.client.filter.{ ResponseFilter, FilterContext }
import scala.collection.JavaConverters._

val MyHttp = Http.configure { builder =>
  builder.addResponseFilter(new ResponseFilter {
    override def filter(ctx: FilterContext[_]) = {
      ctx.getResponseHeaders.getHeaders.get("Content-Type").asScala.toList match {
        case "text/html" :: Nil =>
          ctx.getResponseHeaders.getHeaders.put("Content-Type", List("text/html; charset=utf-8").asJava)
        case _ => ()
      }
      ctx
    }
  })
}

MyHttp(url("http://example.com") OK as.String)