private async Task <Boolean> RemoveDHCPv4LeaseEntry(DHCPv4ScopeRelatedEvent e)
{
DHCPv4LeaseEntryDataModel entry = await GetLatestDHCPv4LeaseEntry(e);
if (entry != null)
{
return(false);
}
DHCPv4LeaseEntries.Remove(entry);
return(true);
}
private async Task <DHCPv4LeaseEntryDataModel> GetLatestDHCPv4LeaseEntry(DHCPv4ScopeRelatedEvent e) => await DHCPv4LeaseEntries.AsQueryable().Where(x => x.LeaseId == e.EntityId).OrderByDescending(x => x.Timestamp).FirstOrDefaultAsync();
private async Task <Boolean?> ProjectDHCPv4PacketAndLeaseRelatedEvents(DomainEvent @event)
{
Boolean?hasChanges = new Boolean?();
switch (@event)
{
case DHCPv4PacketHandledEvent e:
DHCPv4PacketHandledEntryDataModel entry = new DHCPv4PacketHandledEntryDataModel
{
HandledSuccessfully = e.WasSuccessfullHandled,
ErrorCode = e.ErrorCode,
Id = Guid.NewGuid(),
RequestSize = e.Request.GetSize(),
RequestDestination = e.Request.Header.Destionation.ToString(),
RequestSource = e.Request.Header.Source.ToString(),
RequestStream = e.Request.GetAsStream(),
ScopeId = e.ScopeId,
RequestType = e.Request.MessageType,
Timestamp = e.Timestamp,
};
if (e.Response != null)
{
entry.ResponseSize = e.Response.GetSize();
entry.ResponseType = e.Response.MessageType;
entry.ResponseDestination = e.Response.Header.Destionation.ToString();
entry.ResponseSource = e.Response.Header.Source.ToString();
entry.ResponseStream = e.Response.GetAsStream();
}
entry.SetTimestampDates();
DHCPv4PacketEntries.Add(entry);
hasChanges = true;
break;
case DHCPv4LeaseCreatedEvent e:
{
DHCPv4LeaseEntryDataModel leaseEntry = new DHCPv4LeaseEntryDataModel
{
Id = Guid.NewGuid(),
Address = e.Address.ToString(),
Start = e.StartedAt,
End = e.ValidUntil,
LeaseId = e.EntityId,
ScopeId = e.ScopeId,
Timestamp = e.Timestamp,
IsActive = false,
EndOfRenewalTime = e.StartedAt + e.RenewalTime,
EndOfPreferredLifetime = e.StartedAt + e.PreferredLifetime,
};
DHCPv4LeaseEntries.Add(leaseEntry);
hasChanges = true;
}
break;
case DHCPv4LeaseExpiredEvent e:
hasChanges = await UpdateEndToDHCPv4LeaseEntry(e, ReasonToEndLease.Expired);
break;
case DHCPv4LeaseActivatedEvent e:
hasChanges = await UpdateLastestDHCPv4LeaseEntry(e, e => e.IsActive = true);
break;
case DHCPv4LeaseCanceledEvent e:
hasChanges = await UpdateEndToDHCPv4LeaseEntry(e, ReasonToEndLease.Canceled);
break;
case DHCPv4LeaseReleasedEvent e:
hasChanges = await UpdateEndToDHCPv4LeaseEntry(e, ReasonToEndLease.Released);
break;
case DHCPv4LeaseRenewedEvent e:
hasChanges = await UpdateLastestDHCPv4LeaseEntry(e, (leaseEntry) =>
{
leaseEntry.End = e.End;
if (e.Reset == true)
{
leaseEntry.IsActive = false;
}
leaseEntry.EndOfRenewalTime = e.Timestamp + e.RenewSpan;
leaseEntry.EndOfPreferredLifetime = e.Timestamp + e.ReboundSpan;
});
break;
case DHCPv4LeaseRevokedEvent e:
hasChanges = await UpdateEndToDHCPv4LeaseEntry(e, ReasonToEndLease.Revoked);
break;
case DHCPv4LeaseRemovedEvent e:
hasChanges = await RemoveDHCPv4LeaseEntry(e);
break;
default:
hasChanges = null;
break;
}
return(hasChanges);
}
