public void SetObserverParameters(
IList <ExprNode> parameters,
MatchedEventConvertor convertor,
ExprValidationContext validationContext)
{
ObserverParameterUtil.ValidateNoNamedParameters("timer:at", parameters);
if (Log.IsDebugEnabled)
{
Log.Debug(".setObserverParameters " + parameters);
}
if ((parameters.Count < 5) || (parameters.Count > 7))
{
throw new ObserverParameterException("Invalid number of parameters for timer:at");
}
_parameters = parameters;
_convertor = convertor;
// if all parameters are constants, lets try to evaluate and build a schedule for early validation
bool allConstantResult = true;
foreach (ExprNode param in parameters)
{
if (!param.IsConstantResult)
{
allConstantResult = false;
}
}
if (allConstantResult)
{
try
{
var observerParameters = PatternExpressionUtil.Evaluate(
"Timer-at observer", new MatchedEventMapImpl(convertor.MatchedEventMapMeta), parameters,
convertor, null);
_spec = ScheduleSpecUtil.ComputeValues(observerParameters.ToArray());
}
catch (ScheduleParameterException e)
{
throw new ObserverParameterException(
"Error computing crontab schedule specification: " + e.Message, e);
}
}
}
public void SetObserverParameters(IList <ExprNode> parameters, MatchedEventConvertor convertor, ExprValidationContext validationContext)
{
ObserverParameterUtil.ValidateNoNamedParameters(NAME, parameters);
const string errorMessage = NAME + " requires a single numeric or time period parameter";
if (parameters.Count != 1)
{
throw new ObserverParameterException(errorMessage);
}
if (parameters[0] is ExprTimePeriod)
{
var returnType = parameters[0].ExprEvaluator.ReturnType;
if (!returnType.IsNumeric())
{
throw new ObserverParameterException(errorMessage);
}
}
_parameter = parameters[0];
_convertor = convertor;
}