Scala Request Uri Combinator Parser

URI Combinator Parser

In my last blog I created a URL parser but the HttpServletRequest is providing only path and query with the method getRequestUri() so I made a request URI parser too.

Code

This code needs the URL parser, see below.

	import scala.util.parsing.combinator.RegexParsers
	case class RequestUriTokens(path : Option[String], query : Option[String])
	/**
	* Useful parser when using HttpServletRequest.getRequestUri()
	*
	* @see javax.servlet.http.HttpServletRequest.getRequestUri()
	*/
	class RequestUriParser extends RegexParsers {
	private val requestUriParser = someRequest
	val notQuestionmark = """[^\?]*""".r
	val any = """.*""".r
	def someRequest = "/" ~> opt(notQuestionmark) ~ opt("?" ~> any) ^^ {
	case path ~ query => new RequestUriTokens(path, query)
	}
	def applyOnUri(uri : String) = parseAll(requestUriParser, uri) match {
	case Success(result, _) => Right(result)
	case Failure(failure, _) => Left(failure)
	case Error(error, _) => Left(error)
	}
	}
	object RequestUriParser {
	lazy val requestUriParser = new RequestUriParser
	def apply(uri : String) = requestUriParser.applyOnUri(uri)
	}

view raw HttpServletRequest Request Uri Parser.scala hosted with ❤ by GitHub

See

Link to the URL parser:
https://gist.github.com/AIMMOTH/b9903387cdf6b9377e9a7f6ca8887281