Play Framework/Scala example source code file (ContentTypeOf.scala)

This example Play Framework source code file (ContentTypeOf.scala) is included in my "Source Code Warehouse" project. The intent of this project is to help you more easily find Play Framework (and Scala) source code examples by using tags.

All credit for the original source code belongs to Play Framework; I'm just trying to make examples easier to find. (For my Scala work, see my Scala examples and tutorials.)

Play Framework tags/keywords

a, api, cannot, codec, contenttypeof, defaultcontenttypeofs, http, json, library, option, play, play framework, seq, try

The ContentTypeOf.scala Play Framework example source code

/*
 * Copyright (C) 2009-2013 Typesafe Inc. <http://www.typesafe.com>
 */
package play.api.http

import play.api.mvc._
import play.api._
import play.api.http.Status._
import play.api.http.HeaderNames._
import play.api.libs.json._
import play.twirl.api._

import scala.annotation._

/**
 * Defines the default content type for type `A`.
 *
 * @tparam A the content type
 * @param the default content type for `A`, if any
 */
@implicitNotFound(
  "Cannot guess the content type to use for ${A}. Try to define a ContentTypeOf[${A}]"
)
case class ContentTypeOf[-A](mimeType: Option[String])

/**
 * Default Content-Type typeclasses.
 */
object ContentTypeOf extends DefaultContentTypeOfs

/**
 * Contains typeclasses for ContentTypeOf.
 */
trait DefaultContentTypeOfs {

  /**
   * Default content type for `Html` values (`text/html`).
   */
  implicit def contentTypeOf_Html(implicit codec: Codec): ContentTypeOf[Html] = {
    ContentTypeOf[Html](Some(ContentTypes.HTML))
  }

  /**
   * Default content type for `Xml` values (`application/xml`).
   */
  implicit def contentTypeOf_Xml(implicit codec: Codec): ContentTypeOf[Xml] = {
    ContentTypeOf[Xml](Some(ContentTypes.XML))
  }

  /**
   * Default content type for `JsValue` values (`application/json`).
   */
  implicit def contentTypeOf_JsValue(implicit codec: Codec): ContentTypeOf[JsValue] = {
    ContentTypeOf[JsValue](Some(ContentTypes.JSON))
  }

  /**
   * Default content type for `Txt` values (`text/plain`).
   */
  implicit def contentTypeOf_Txt(implicit codec: Codec): ContentTypeOf[Txt] = {
    ContentTypeOf[Txt](Some(ContentTypes.TEXT))
  }

  /**
   * Default content type for `JavaScript` values.
   */
  implicit def contentTypeOf_JavaScript(implicit codec: Codec): ContentTypeOf[JavaScript] =
    ContentTypeOf[JavaScript](Some(ContentTypes.JAVASCRIPT))

  /**
   * Default content type for `String` values (`text/plain`).
   */
  implicit def contentTypeOf_String(implicit codec: Codec): ContentTypeOf[String] = {
    ContentTypeOf[String](Some(ContentTypes.TEXT))
  }

  /**
   * Default content type for `Map[String, Seq[String]]]` values (`application/x-www-form-urlencoded`).
   */
  implicit def contentTypeOf_urlEncodedForm(implicit codec: Codec): ContentTypeOf[Map[String, Seq[String]]] = {
    ContentTypeOf[Map[String, Seq[String]]](Some(ContentTypes.FORM))
  }

  /**
   * Default content type for `NodeSeq` values (`application/xml`).
   */
  implicit def contentTypeOf_NodeSeq[C <: scala.xml.NodeSeq](implicit codec: Codec): ContentTypeOf[C] = {
    ContentTypeOf[C](Some(ContentTypes.XML))
  }

  /**
   * Default content type for `NodeBuffer` values (`application/xml`).
   */
  implicit def contentTypeOf_NodeBuffer(implicit codec: Codec): ContentTypeOf[scala.xml.NodeBuffer] = {
    ContentTypeOf[scala.xml.NodeBuffer](Some(ContentTypes.XML))
  }

  /**
   * Default content type for byte array (application/application/octet-stream).
   */
  implicit def contentTypeOf_ByteArray: ContentTypeOf[Array[Byte]] = ContentTypeOf[Array[Byte]](Some(ContentTypes.BINARY))

  /**
   * Default content type for empty responses (no content type).
   */
  implicit def contentTypeOf_EmptyContent: ContentTypeOf[Results.EmptyContent] = ContentTypeOf[Results.EmptyContent](None)

}