protected virtual string PerformItem(IProviderFacet ipf, ApproachLocationItem item)
{
var desc = item.ToString();
var toLocName = item.ToSubstLocName;
E090SubstLocObserver toLocObs = null;
if (toLocName.IsNullOrEmpty() && !item.SubstID.IsEmpty)
{
var substObs = new E090SubstObserver(item.SubstID);
if (!substObs.Info.IsValid)
{
return("{0} failed: given approach substrate ID is not valid [{1}]".CheckedFormat(desc, item.SubstID));
}
toLocName = substObs.Info.LocID;
toLocObs = GetSubstLocObserver(toLocName);
if (toLocObs == null)
{
return("{0} failed: given approach substrate is not currently at a supported location [{1}]".CheckedFormat(desc, toLocName));
}
}
else
{
toLocObs = GetSubstLocObserver(item.ToSubstLocName);
if (toLocObs == null)
{
return("{0} failed: given approach to location is not supported here [{1}]".CheckedFormat(desc, toLocName));
}
}
return(InnerPerformApproach(ipf, item, toLocObs, desc));
}
protected virtual string InnerPerformApproach(IProviderFacet ipf, ApproachLocationItem item, E090SubstLocObserver toLocObs, string desc)
{
return("{0}.{1} has not been implemented [{2}]".CheckedFormat(CurrentClassLeafName, CurrentMethodName, desc));
}
protected virtual string InnerPerformSwapSubstrates(IProviderFacet ipf, E090SubstObserver substObs, E090SubstLocObserver fromLocObs, E090SubstObserver swapWithSubstObs, E090SubstLocObserver swapAtLocObs, string desc)
{
return("{0}.{1} has not been implemented [{2}]".CheckedFormat(CurrentClassLeafName, CurrentMethodName, desc));
}
