public static ExprForge[] CrontabScheduleValidate(
ExprNodeOrigin origin,
IList<ExprNode> scheduleSpecExpressionList,
bool allowBindingConsumption,
StatementRawInfo statementRawInfo,
StatementCompileTimeServices services)
{
// Validate the expressions
ExprForge[] expressions = new ExprForge[scheduleSpecExpressionList.Count];
int count = 0;
ExprValidationContext validationContext =
new ExprValidationContextBuilder(new StreamTypeServiceImpl(false), statementRawInfo, services)
.WithAllowBindingConsumption(allowBindingConsumption)
.Build();
foreach (ExprNode parameters in scheduleSpecExpressionList) {
ExprNode node = ExprNodeUtilityValidate.GetValidatedSubtree(origin, parameters, validationContext);
expressions[count++] = node.Forge;
}
if (expressions.Length <= 4 || expressions.Length >= 8) {
throw new ExprValidationException(
"Invalid schedule specification: " +
ScheduleSpecUtil.GetExpressionCountException(expressions.Length));
}
return expressions;
}
public static ScheduleSpec CrontabScheduleBuild(
ExprEvaluator[] scheduleSpecEvaluators,
ExprEvaluatorContext context)
{
try {
object[] scheduleSpecParameterList = EvaluateExpressions(scheduleSpecEvaluators, context);
return ScheduleSpecUtil.ComputeValues(scheduleSpecParameterList);
}
catch (ScheduleParameterException e) {
throw new EPException("Invalid schedule specification: " + e.Message, e);
}
}