private SystemNode FindSystemNode(ISystem sys)
{
if (scanDataByName.TryGetValue(sys.Name, out SystemNode sn)) // try name first, in case the entry is old enough not to have a system address
{
return(sn);
}
if (sys.SystemAddress.HasValue) // if the find has a system address, then we should now only check the system address table
{
if (ScanDataByNameSysaddr.TryGetValue(sys.NameSystemAddress, out sn)) // try system address
{
return(sn);
}
}
else
{ // find does not have system address, and was not found in DataByName
// it could be an old journal system with no sysaddr, in which case its probably has no data
// as it should have been picked up by the DataByName if it did. But we can't distinguish so can't screen that out
// Or its synthesised with just the name available
// Either way, last check for sysaddr by name
// this is unlikely to be used now, probably just by Action system
sn = ScanDataByNameSysaddr.Values.ToList().Find(x => x.System.Name.Equals(sys.Name)); // try and find it in the system by address by name
if (sn != null)
{
return(sn);
}
}
return(null);
}
// make or get a system node for a system. See starsystemnode for the rules on using these two structures for lookups
private SystemNode GetOrCreateSystemNode(ISystem sys)
{
if (scanDataByName.TryGetValue(sys.Name, out SystemNode sn)) // try name, it may have been stored with an old entry without sys address
{
return(sn); // so we check to see if we already have that first
}
// then try sysaddr
if (sys.SystemAddress.HasValue && ScanDataByNameSysaddr.TryGetValue(sys.NameSystemAddress, out sn))
{
return(sn);
}
// not found, make a new node
sn = new SystemNode(sys);
// if it has a system address, we store it to the list that way. Else we add to name list
if (sys.SystemAddress.HasValue)
{
ScanDataByNameSysaddr[sys.NameSystemAddress] = sn;
}
else
{
scanDataByName[sys.Name] = sn;
}
return(sn);
}
