public static async Task RegisterNewShard()

in App/src/Events-Tenant.Common/Utilities/Sharding.cs [87:133]
34 lines of code
4 McCabe index (conditional complexity)

        public static async Task<bool> RegisterNewShard(string tenantName, int tenantId, string tenantServer, int databaseServerPort, string servicePlan)
        {
            try
            {
                Shard shard;
                ShardLocation shardLocation = new ShardLocation(tenantServer, tenantName, SqlProtocol.Tcp, databaseServerPort);

                if (!ShardMap.TryGetShard(shardLocation, out shard))
                {
                    //create shard if it does not exist
                    shard = ShardMap.CreateShard(shardLocation);
                }

                // Register the mapping of the tenant to the shard in the shard map.
                // After this step, DDR on the shard map can be used
                PointMapping<int> mapping;
                if (!ShardMap.TryGetMappingForKey(tenantId, out mapping))
                {
                    var pointMapping = ShardMap.CreatePointMapping(tenantId, shard);

                    //convert from int to byte[] as tenantId has been set as byte[] in Tenants entity
                    var key = _utilities.ConvertIntKeyToBytesArray(pointMapping.Value);

                    //get tenant's venue name
                    var venueDetails = await _tenantRepository.GetVenueDetails(tenantId);

                    //add tenant to Tenants table
                    var tenant = new Tenants
                    {
                        ServicePlan = servicePlan,
                        TenantId = key,
                        TenantName = venueDetails.VenueName,
                        RecoveryState = "n/a",
                        LastUpdated = DateTime.Now
                    };

                    _catalogRepository.Add(tenant);
                }                
                return true;
            }
            catch (Exception exception)
            {
                Trace.TraceError(exception.Message, "Error in registering new shard.");
                return false;
            }

        }