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

This example Play Framework source code file (PlayExceptions.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

api, compilation, compilationexception, file, none, option, overloaded, play, play framework, playexceptions, string, unexpected, unexpectedexception

The PlayExceptions.scala Play Framework example source code

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

import sbt._
import play.api._

trait PlayExceptions {

  def filterAnnoyingErrorMessages(message: String): String = {
    val overloaded = """(?s)overloaded method value (.*) with alternatives:(.*)cannot be applied to(.*)""".r
    message match {
      case overloaded(method, _, signature) => "Overloaded method value [" + method + "] cannot be applied to " + signature
      case msg => msg
    }
  }

  case class UnexpectedException(message: Option[String] = None, unexpected: Option[Throwable] = None) extends PlayException(
    "Unexpected exception",
    message.getOrElse {
      unexpected.map(t => "%s: %s".format(t.getClass.getSimpleName, t.getMessage)).getOrElse("")
    },
    unexpected.orNull
  )

  case class CompilationException(problem: xsbti.Problem) extends PlayException.ExceptionSource(
    "Compilation error", filterAnnoyingErrorMessages(problem.message)) {
    def line = problem.position.line.map(m => m.asInstanceOf[java.lang.Integer]).orNull
    def position = problem.position.pointer.map(m => m.asInstanceOf[java.lang.Integer]).orNull
    def input = problem.position.sourceFile.map(IO.read(_)).orNull
    def sourceName = problem.position.sourceFile.map(_.getAbsolutePath).orNull
  }

  case class RoutesCompilationException(source: File, message: String, atLine: Option[Int], column: Option[Int]) extends PlayException.ExceptionSource(
    "Compilation error", message) with FeedbackProvidedException {
    def line = atLine.map(_.asInstanceOf[java.lang.Integer]).orNull
    def position = column.map(_.asInstanceOf[java.lang.Integer]).orNull
    def input = IO.read(source)
    def sourceName = source.getAbsolutePath
  }

}

object PlayExceptions extends PlayExceptions