social {
    twitter {
        url="https://twitter.com"
        logo="images/twitter.png"
    }
    facebook {
        url="https://www.facebook.com"
        logo="images/facebook.png"
    }
}

<table border="0" cellspacing="0" cellpadding="2"><tr>
    @configuration.getConfig("social").map { config =>
        @for(item <- config.entrySet) {
           <td><a href="item.getString("url")">
           <img src="@routes.Assets.at("item.getString("logo")").absoluteURL()" width="24" height="24"/></a></td>
        }
    }
</table>

"social" : [
     {
        name="twitter"
        url="https://twitter.com",
        logo="images/twitter.png"
    },
    {
        name="facebook"
        url="https://www.facebook.com",
        logo="images/facebook.png"
    }
]

@(message: String)(implicit request: RequestHeader)
@import play.api.Play.current

<table border="0" cellspacing="0" cellpadding="2"><tr>
    @current.configuration.getConfigList("social").get.map { config =>
            <td><a href="@config.getString("url")">
            <img src="@routes.Assets.at(config.getString("logo").get).absoluteURL()" width="24" height="24"/></a></td>
        }
</table>

import collection.JavaConversions._
val socialConfig = ConfigFactory.load.getConfig("social")
socialConfig.root.map { case (name: String, configObject: ConfigObject) =>
    val config = configObject.toConfig
    println(config.getString("url"))
    println(config.getString("logo"))
}

ConfigList socials = ConfigFactory().load.getList("social")

for (ConfigValue cv : socials) {
   Config c = ((ConfigObject)cv).toConfig();
   System.out.println(c.getString("url"));
   System.out.println(c.getString("logo"));
}

private val firstSegmentRE = """^(w+)[.*].*$""".r

// convert "aaa.bbb.ccc" to "aaa"
private def parseFirstSegment(fullPath: String) : Option[String] = {
  if (fullPath.contains("."))
    fullPath match {
      case firstSegmentRE(segment) => Some(segment)
      case _ => None
    }
  else
    Some(fullPath)
}

// for all keys in white list get a map of key -> config
protected def subConfigMap(config: Config, whiteList: List[String],
configName: String) : ErrorOr[Map[String, Config]] = {
  // This will traverse the whole config and flatten down to the leaves..
  val leafKeys : List[String] =
    config.entrySet()
      .asScala
      .map(e => e.getKey)
      .toList
  // Remove all after the first dot
  val nextLevelKeys : List[String] =
    leafKeys.map(parseFirstSegment)
      .collect {
        case Some(firstSegment) => firstSegment
      }
      .distinct
  val keysToSearch = nextLevelKeys.filter(whiteList.contains)
  // we have a list of valid first level children
  // parse out subconfigs and convert to map
  keysToSearch.traverseErrorOr( key =>
    extractSubConfig(config, key, configName).map((key, _))
  )
  .map(_.toMap)
}