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TestProcess.scala
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TestProcess.scala
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package pl.touk.nussknacker.engine.testmode
import pl.touk.nussknacker.engine.api.exception.NuExceptionInfo
import pl.touk.nussknacker.engine.api.{Context, ContextId}
object TestProcess {
case class TestResults[T](
nodeResults: Map[String, List[NodeResult[T]]],
invocationResults: Map[String, List[ExpressionInvocationResult[T]]],
externalInvocationResults: Map[String, List[ExternalInvocationResult[T]]],
exceptions: List[NuExceptionInfo[_ <: Throwable]],
variableEncoder: Any => T
) {
def updateNodeResult(nodeId: String, context: Context) = {
copy(nodeResults =
nodeResults + (nodeId -> (nodeResults.getOrElse(nodeId, List()) :+ NodeResult(toResult(context))))
)
}
def updateExpressionResult(nodeId: String, context: Context, name: String, result: Any) = {
val invocationResult = ExpressionInvocationResult(context.id, name, variableEncoder(result))
copy(invocationResults =
invocationResults + (nodeId -> addResults(invocationResult, invocationResults.getOrElse(nodeId, List())))
)
}
def updateExternalInvocationResult(nodeId: String, contextId: ContextId, name: String, result: Any) = {
val invocation = ExternalInvocationResult(contextId.value, name, variableEncoder(result))
copy(externalInvocationResults =
externalInvocationResults + (nodeId -> (externalInvocationResults.getOrElse(nodeId, List()) :+ invocation))
)
}
def updateExceptionResult(espExceptionInfo: NuExceptionInfo[_ <: Throwable]) =
copy(exceptions = exceptions :+ espExceptionInfo)
// when evaluating e.g. keyBy expression can be invoked more than once...
// TODO: is it the best way to handle it??
private def addResults(
invocationResult: ExpressionInvocationResult[T],
resultsSoFar: List[ExpressionInvocationResult[T]]
) = resultsSoFar.filterNot(res =>
res.contextId == invocationResult.contextId && res.name == invocationResult.name
) :+ invocationResult
private def toResult(context: Context): ResultContext[T] =
ResultContext(context.id, context.variables.map { case (k, v) => k -> variableEncoder(v) })
}
/*
We have to be careful not to put too much into results, as they are serialized to JSON.
*/
case class NodeResult[T](context: ResultContext[T]) {
def variableTyped[U <: T](name: String): Option[U] = context.variableTyped(name)
}
case class ExpressionInvocationResult[T](contextId: String, name: String, value: T)
case class ExternalInvocationResult[T](contextId: String, name: String, value: T)
case class ResultContext[T](id: String, variables: Map[String, T]) {
def variableTyped[U <: T](name: String): Option[U] = variables.get(name).map(_.asInstanceOf[U])
}
}