skinny.controller.feature.ActionDefinitionFeature.scala Maven / Gradle / Ivy

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package skinny.controller.feature

import skinny.controller.ActionDefinition
import skinny.micro.SkinnyMicroBase
import skinny.micro.constant.HttpMethod
import skinny.micro.context.SkinnyContext

/**
 * Action definitions for this controller.
 * These definitions will be used for beforeAction/afterAction's only/except.
 */
trait ActionDefinitionFeature extends SkinnyMicroBase {

  /**
   * Note: Same action method name should be registered several times.
   * For example, put("/members/:id")(...).as('update) and patch("/members/:id")(...).as('update).
   */
  protected val actionDefinitions = new scala.collection.mutable.ArrayBuffer[ActionDefinition]

  /**
   * Adds action definition
   *
   * @param actionDef action definition
   */
  def addActionDefinition(actionDef: ActionDefinition): Unit = {
    actionDefinitions += actionDef
  }

  /**
   * Returns action name for this request.
   *
   * @return action name
   */
  def currentActionName(implicit cxt: SkinnyContext = context): Option[Symbol] = {
    // Scalatra takes priority to routing definition which is defined later.
    // So we should take priority to the first action name found from reversed action definitions here.
    actionDefinitions.reverse.find { actionDef =>
      actionDef.matcher.apply(HttpMethod(request.getMethod), requestPath(cxt))
    }.map(_.name)
  }

}