public InstancePlacement Merge(InstancePlacement subsequentPlacement)
{
Debug.Assert(IsAdjacent(subsequentPlacement));
return(new InstancePlacement(
MergeTenancy(this.Tenancy, subsequentPlacement.Tenancy),
this.ServerId ?? subsequentPlacement.ServerId,
this.From,
subsequentPlacement.To));
}
private void AddPlacement(InstancePlacement placement)
{
if (this.placements.Any())
{
var subsequentPlacement = this.placements.First();
if (placement.IsAdjacent(subsequentPlacement))
{
// Placement are right adjacent -> merge.
placement = placement.Merge(subsequentPlacement);
this.placements.RemoveFirst();
}
}
this.placements.AddFirst(placement);
}
public bool IsAdjacent(InstancePlacement subsequentPlacement)
{
Debug.Assert(this.To <= subsequentPlacement.To);
Debug.Assert(this.From <= subsequentPlacement.From);
if (Math.Abs((this.To - subsequentPlacement.From).TotalSeconds) < 60)
{
// These two placements are so close to another that one of them
// probably isn't right.
if (this.ServerId != null && subsequentPlacement.ServerId != null)
{
return(this.ServerId == subsequentPlacement.ServerId);
}
else
{
return(true);
}
}
else
{
// There is substantial space between these placements.
return(false);
}
}
