BaseTransformer

open class BaseTransformer<T> : ConfigurationTransforming

BaseTransformer it’s a helper class which can be used with ConfigurationTransformer to tranform a value to a typed object using any transformer method. The method can be a static func, a closure or an initializer.

*There are several default transformers in the SDK which can be used as transformer

  • transformToURL
  • transformToValue: generic method for any base value type; can be used
  • OAuth2AuthenticationParameters.init(discoveryServiceConfig:)
  • SAMLAuthenticationParameters.init(discoveryServiceConfig:) Example structure: “`Swift let configuration : [String: Any] = [ "someExampleURL”: “https://www.sap.com”, “someString” : “An arbitrary string”, “settingsExchange” : [ “passwordPolicy”: [ “somePolicyProperty”:“someValue”, “somePolicyProperty2”:“someValue2”, ], “logSettings”: [ “someLogProperty”:“someValue”, “someLogProperty2”:“someValue2”, ] ] ]

// The example transformationMap for the structure let sampleTransformationMap : [String: ConfigurationTransforming] = [ “someExampleURL” : BaseTransformer(targetKey: .requiredURL, transformer: transformToURL), “someString” : BaseTransformer(targetKey: .requiredString), “settingsExchange” : ConfigurationTransformer(transformationMap: [ “passwordPolicy” : BaseTransformer(targetKey: .passcodePolicy, transformer: FUIPasscodePolicy.init(sapcpmsSettingsPasswordPolicy:)), “logSettings” : BaseTransformer(targetKey: .sapcpmsLogSettings, transformer: SAPcpmsLogSettings.init(sapcpmsLogSettings:)) ]) ]

  • initializes a transformer which calls the transformer passed in the parameter to tranform the data to another data and returns it associating it with the targetKey parameter

    Declaration

    Swift

    public init(targetKey: OnboardingInfoKey, transformer: @escaping (_ config: Any) throws -> T = transformToValue)

    Parameters

    targetKey

    transformed data will be associated with this key in the returning dictionary
    transformer

    closure, func or initializer which can transform the input data of the transform(config:) method to another data

  • Transform the input data using the associated transformer to another data and associates the result with the key associated with this instance

    Throws

    errors thrown by tranformers

    Declaration

    Swift

    open func transform(config: Any) throws -> [OnboardingInfoKey : Any]

    Parameters

    config

    the input config data

    Return Value

    [OnboardingInfoKey: Any] dictionary of the transformed data where the key is the associated key and the data is the result of the transformer