private async Task <Boolean> RemoveDHCPv6LeaseEntry(DHCPv6ScopeRelatedEvent e)
{
DHCPv6LeaseEntryDataModel entry = await GetLatestDHCPv6LeaseEntry(e);
if (entry != null)
{
return(false);
}
DHCPv6LeaseEntries.Remove(entry);
return(true);
}
private async Task <DHCPv6LeaseEntryDataModel> GetLatestDHCPv6LeaseEntry(DHCPv6ScopeRelatedEvent e) => await DHCPv6LeaseEntries.AsQueryable().Where(x => x.LeaseId == e.EntityId).OrderByDescending(x => x.Timestamp).FirstOrDefaultAsync();
private async Task <Boolean?> ProjectDHCPv6PacketAndLeaseRelatedEvents(DomainEvent @event)
{
Boolean?hasChanges = new Boolean?();
switch (@event)
{
case DHCPv6PacketHandledEvent e:
DHCPv6PacketHandledEntryDataModel entry = new DHCPv6PacketHandledEntryDataModel
{
HandledSuccessfully = e.WasSuccessfullHandled,
ErrorCode = e.ErrorCode,
Id = Guid.NewGuid(),
ScopeId = e.ScopeId,
Timestamp = e.Timestamp,
RequestSize = e.Request.GetSize(),
RequestType = e.Request.GetInnerPacket().PacketType,
RequestSource = e.Request.Header.Source.ToString(),
RequestDestination = e.Request.Header.Destionation.ToString(),
RequestStream = e.Request.GetAsStream(),
};
if (e.Response != null)
{
entry.ResponseSize = e.Response.GetSize();
entry.ResponseType = e.Response.GetInnerPacket().PacketType;
entry.ResponseSource = e.Response.Header.Source.ToString();
entry.ResponseDestination = e.Response.Header.Destionation.ToString();
entry.ResponseStream = e.Response.GetAsStream();
}
entry.SetTimestampDates();
DHCPv6PacketEntries.Add(entry);
hasChanges = true;
break;
case DHCPv6LeaseCreatedEvent e:
{
DHCPv6LeaseEntryDataModel leaseEntry = new DHCPv6LeaseEntryDataModel
{
Id = Guid.NewGuid(),
Address = e.Address.ToString(),
Start = e.StartedAt,
End = e.ValidUntil,
EndOfRenewalTime = e.StartedAt + e.RenewalTime,
EndOfPreferredLifetime = e.StartedAt + e.PreferredLifetime,
LeaseId = e.EntityId,
ScopeId = e.ScopeId,
Prefix = e.HasPrefixDelegation == true?e.DelegatedNetworkAddress.ToString() : null,
PrefixLength = e.HasPrefixDelegation == true ? e.PrefixLength : (Byte)0,
Timestamp = e.Timestamp,
};
DHCPv6LeaseEntries.Add(leaseEntry);
hasChanges = true;
}
break;
case DHCPv6LeaseExpiredEvent e:
hasChanges = await UpdateEndToDHCPv6LeaseEntry(e, ReasonToEndLease.Expired);
break;
case DHCPv6LeaseActivatedEvent e:
hasChanges = await UpdateLastestDHCPv6LeaseEntry(e, (leaseEntry) =>
{
leaseEntry.IsActive = true;
});
break;
case DHCPv6LeasePrefixAddedEvent e:
hasChanges = await UpdateLastestDHCPv6LeaseEntry(e, (leaseEntry) =>
{
leaseEntry.Prefix = e.NetworkAddress.ToString();
leaseEntry.PrefixLength = e.PrefixLength;
});
break;
case DHCPv6LeaseCanceledEvent e:
hasChanges = await UpdateEndToDHCPv6LeaseEntry(e, ReasonToEndLease.Canceled);
break;
case DHCPv6LeaseReleasedEvent e:
hasChanges = await UpdateEndToDHCPv6LeaseEntry(e, ReasonToEndLease.Released);
break;
case DHCPv6LeaseRenewedEvent e:
hasChanges = await UpdateLastestDHCPv6LeaseEntry(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 DHCPv6LeaseRevokedEvent e:
hasChanges = await UpdateEndToDHCPv6LeaseEntry(e, ReasonToEndLease.Revoked);
break;
case DHCPv6LeaseRemovedEvent e:
hasChanges = await RemoveDHCPv6LeaseEntry(e);
break;
default:
hasChanges = null;
break;
}
return(hasChanges);
}
