public void SetPropertiesForClass(RuntimeArgumentCollection args, object toSetPropertiesOf)
{
if (toSetPropertiesOf == null)
{
throw new NullReferenceException(ProcessTask.Path + " instance has not been created yet! Call SetProperties after the factory has created the instance.");
}
if (UsefulStuff.IsAssignableToGenericType(toSetPropertiesOf.GetType(), typeof(IPipelineRequirement <>)))
{
throw new Exception("ProcessTask '" + ProcessTask.Name + "' was was an instance of Class '" + ProcessTask.Path + "' which declared an IPipelineRequirement<>. RuntimeTask classes are not the same as IDataFlowComponents, IDataFlowComponents can make IPipelineRequirement requests but RuntimeTasks cannot");
}
if (UsefulStuff.IsAssignableToGenericType(toSetPropertiesOf.GetType(), typeof(IPipelineOptionalRequirement <>)))
{
throw new Exception("ProcessTask '" + ProcessTask.Name + "' was was an instance of Class '" + ProcessTask.Path + "' which declared an IPipelineOptionalRequirement<>. RuntimeTask classes are not the same as IDataFlowComponents, IDataFlowComponents can make IPipelineRequirement requests but RuntimeTasks cannot");
}
//get all possible properties that we could set
foreach (var propertyInfo in toSetPropertiesOf.GetType().GetProperties())
{
//see if any demand initialization
DemandsInitializationAttribute initialization = (DemandsInitializationAttribute)System.Attribute.GetCustomAttributes(propertyInfo).FirstOrDefault(a => a is DemandsInitializationAttribute);
//this one does
if (initialization != null)
{
try
{
//get the approrpriate value from arguments
var value = args.GetCustomArgumentValue(propertyInfo.Name);
//use reflection to set the value
propertyInfo.SetValue(toSetPropertiesOf, value, null);
}
catch (NotSupportedException e)
{
throw new Exception("Class " + toSetPropertiesOf.GetType().Name + " has a property " + propertyInfo.Name +
" but is of unexpected type " + propertyInfo.GetType(), e);
}
catch (KeyNotFoundException e)
{
if (initialization.Mandatory)
{
throw new ArgumentException(
"Class " + toSetPropertiesOf.GetType().Name + " has a Mandatory property '" + propertyInfo.Name +
"' marked with DemandsInitialization but no corresponding argument was provided in ArgumentCollection", e);
}
}
}
}
}