A Scala Parser Combinators Implementation for ODATA URI
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README.md

A Parser for ODATA URI

This project builds a parser for subset of ODATA URI. Main objective is to parse a URI such as http://odata.io/odata.svc/Schema(231)/Customer?$top=2&$filter=concat(City, Country) eq 'Berlin, Germany' and builds an AST as follows:

ODataQuery(
    URL("http://odata.io/odata.svc"),
    ResourcePath("Schema",Number("231"),ResourcePath("Customer",EmptyExp(),EmptyExp())),
    QueryOperations(
      List(Top(Number("2")),
      Filter(
        EqualToExp(
          CallExp(
              Property("concat")
            , List(Property("City"), Property("Country"))
          )
          , StringLiteral("'Berlin, Germany'"))))))

It uses Scala Parser Combinators to parse the URI string and builds an AST for that for further processing.

For more example, see unit tests included in the project (e.g., see OdataUriParseTests.scala).

See http://www.odata.org/documentation/odata-version-2-0/uri-conventions/ for more details regarding the URI specification.