/// <summary>
/// Adds the required input reference to the decision.
/// </summary>
/// <remarks>Required inputs represents the "link" between input and decision in a model.
/// Technically, the input requirements (existence of the input) are not checked during the execution,
/// it's more for better understanding the DMN model</remarks>
/// <param name="input">Reference to the input variable</param>
/// <exception cref="DmnBuilderException">Throws <see cref="DmnBuilderException"/> when the definition has already been built</exception>
protected void AddRequiredInput(Variable.Ref input)
{
if (IsBuilt)
{
throw Logger.Error <DmnBuilderException>("Decision is already built");
}
if (input == null)
{
throw new ArgumentNullException(nameof(input));
}
if (!input.IsInputParameter)
{
throw Logger.Error <DmnBuilderException>($"Variable {input.Name} is not an input parameter");
}
if (Variables[input] == null)
{
throw Logger.Error <DmnBuilderException>($"Can't get the variable from reference {input.Name}");
}
if (!RequiredInputs.Contains(input))
{
RequiredInputs.Add(input);
}
}
/// <summary>
/// Builds the decision table definition
/// </summary>
/// <returns>Table decision definition built</returns>
/// <exception cref="DmnBuilderException">Throws <see cref="DmnBuilderException"/> when the definition has already been built</exception>
/// <exception cref="DmnBuilderException">Throws <see cref="DmnBuilderException"/> when there is no input, no output or no rule defined in builder</exception>
protected internal override IDmnDecision Build()
{
if (IsBuilt)
{
throw Logger.Error <DmnBuilderException>("Decision is already built");
}
if (InputsInternal.Count < 1)
{
throw Logger.Error <DmnBuilderException>($"At least one input must be defined for decision table {Name}");
}
if (OutputsInternal.Count < 1)
{
throw Logger.Error <DmnBuilderException>($"At least one output must be defined for decision table {Name}");
}
if (RulesInternal.Count < 1)
{
throw Logger.Error <DmnBuilderException>($"At least one rule must be defined for decision table {Name}");
}
//create
var tableDecision = new DmnDecisionTable(
Name,
HitPolicy,
Aggregation,
InputsInternal.Select(i => i.GetResultOrBuild()).ToArray(),
OutputsInternal.Select(o => o.GetResultOrBuild()).ToArray(),
RulesInternal.Select(r => r.GetResultOrBuild()).ToArray(),
RequiredInputs.Select(i => Variables[i].GetResultOrBuild()).ToArray(),
RequiredDecisions.Select(d => Decisions[d].GetResultOrBuild()).ToArray());
ResultInternal = tableDecision;
return(tableDecision);
}
/// <summary>
/// Builds the expression decision definition
/// </summary>
/// <returns>Decision definition built</returns>
/// <exception cref="DmnBuilderException">Throws <see cref="DmnBuilderException"/> when the definition has already been built</exception>
/// <exception cref="DmnBuilderException">Throws <see cref="DmnBuilderException"/> when the expression or output variable is not defined in builder</exception>
protected internal override IDmnDecision Build()
{
if (IsBuilt)
{
throw Logger.Error <DmnBuilderException>("Decision is already built");
}
if (OutputVariableInternal == null)
{
throw Logger.Error <DmnBuilderException>($"Missing output variable for expression decision {Name}");
}
if (string.IsNullOrWhiteSpace(Expression))
{
throw Logger.Error <DmnBuilderException>($"Missing expression for expression decision {Name}");
}
//create
var expressionDecision = new DmnExpressionDecision(
Name,
Expression,
OutputVariableInternal.GetResultOrBuild(),
RequiredInputs.Select(i => Variables[i].GetResultOrBuild()).ToArray(),
RequiredDecisions.Select(d => Decisions[d].GetResultOrBuild()).ToArray());
ResultInternal = expressionDecision;
return(expressionDecision);
}
public StandCombo(string Name, params ComboInput[] inputs)
{
ComboName = Name;
foreach (ComboInput i in inputs)
{
RequiredInputs.Add(i);
}
}
protected override IDmnDecision Build()
{
return(new DmnLogicalAndDecision(
Name,
GetResultOrBuild(Variables[Input1Var]),
GetResultOrBuild(Variables[Input2Var]),
Negate,
GetResultOrBuild(Variables[OutputVar]),
RequiredInputs.Select(i => GetResultOrBuild(Variables[i])).ToArray(),
RequiredDecisions.Select(d => GetResultOrBuild(Decisions[d])).ToArray()));
}
