Packages

  • package root
    Definition Classes
    root
  • package net
    Definition Classes
    root
  • package cakesolutions
    Definition Classes
    net
  • package config

    Using Typesafe config we read in and parse configuration files.

    Using Typesafe config we read in and parse configuration files. Paths into these files are then retrieved and type checked using Ficus.

    Using a lightweight DSL, we are able to then check and validate these type checked values. For example, given that the Typesafe configuration:

    top-level-name = "test"
test {
  nestedVal = 50.68
  nestedDuration = 4 h
  nestedList = []
  context {
    valueInt = 30
    valueStr = "test string"
    valueDuration = 12 ms
    valueStrList = [ "addr1:10", "addr2:20", "addr3:30" ]
    valueDoubleList = [ 10.2, 20, 0.123 ]
  }
}

    has been parsed and read into an implicit of type Config, then we are able to validate that the value at the path test.nestedVal has type Double and that it satisfies specified size bounds as follows:

    case object ShouldBeAPercentageValue extends Exception

validate[Double]("test.nestedVal", ShouldBeAPercentageValue)(n => 0 <= n && n <= 100)

    If the configuration value at path test.nestedVal fails to pass the percentage bounds check, then Left(ShouldBeAPercentageValue) is returned.

    Likewise, we can enforce that all values in the array at the path test.context.valueStrList match the regular expression pattern [a-z0-9]+:[0-9]+ as follows:

    case object ShouldBeASocketValue extends Exception

validate[List[String]]("test.context.valueStrList", ShouldBeASocketValue)(_.matches("[a-z0-9]+:[0-9]+"))

    In some instances, we may not care about checking the value at a configuration path. In these cases we can use unchecked:

    unchecked[FiniteDuration]("test.nestedDuration")
    Definition Classes
    cakesolutions
  • ConfigError
  • FileNotFound
  • MissingValue
  • NullValue
  • PathSpec
  • RequiredValueNotSet
  • ValueError
  • ValueErrors
  • ValueFailure
  • optional
  • required

object NullValue extends Exception with Product with Serializable

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