/// <inheritdoc/>
public long GetTimestampFor(LoraMessage payload)
{
string time = payload.UplinkMessage.ReceivedAt;
long epochTimestamp = DateTimeOffset.Parse(time).ToUnixTimeMilliseconds();
return(epochTimestamp);
}
/// <inheritdoc/>
public bool CanParse(LoraMessage payload)
{
var validPayload = payload.UplinkMessage.DecodedPayload != null;
if (!validPayload)
{
var devEui = GetDeviceIdFor(payload);
_logger.Warning($"'{devEui}': does not contain decoded payload");
}
return(validPayload);
}
async Task IEventProcessor.ProcessEventsAsync(PartitionContext context, IEnumerable <EventData> messages)
{
LoraMessage message = new LoraMessage();
_client = new MongoClient();
_database = _client.GetDatabase("lockD");
foreach (EventData eventData in messages)
{
string data = Encoding.UTF8.GetString(eventData.GetBytes());
//"{\n \"LockId\":\"1C8779C0000000EC\",\n \"Latitude\":\"1.0\",\n \"Longitude\":\"1.0\",\n \"Timestamp\":\"0\"\n}"
Console.WriteLine(string.Format("Message received. Partition: '{0}', Data: '{1}'", context.Lease.PartitionId, data));
try
{
message = JsonConvert.DeserializeObject <LoraMessage>(data);
var document = new BsonDocument
{
{ "LockId", message.LockId },
{ "Latitude", message.Latitude },
{ "Longitude", message.Longitude },
{ "Timestamp", DateTime.Now.ToLocalTime() }
};
string LastLocation = message.Latitude + "," + message.Longitude;
var loraMessages = _database.GetCollection <BsonDocument>("loraMessages");
await loraMessages.InsertOneAsync(document);
var bikes = _database.GetCollection <BsonDocument>("bikes");
var filter = Builders <BsonDocument> .Filter.Eq("LockId", message.LockId);
var update = Builders <BsonDocument> .Update
.Set("LastLocation", LastLocation);
var result = await bikes.UpdateOneAsync(filter, update);
}
catch
{
Console.WriteLine("Failed To Deserialize");
}
}
//Call checkpoint every 5 minutes, so that worker can resume processing from 5 minutes back if it restarts.
if (this.checkpointStopWatch.Elapsed > TimeSpan.FromMinutes(5))
{
await context.CheckpointAsync();
this.checkpointStopWatch.Restart();
}
}
/// <inheritdoc/> public Dictionary <string, dynamic> GetDecodedPayloadFor(LoraMessage payload) => payload.UplinkMessage.DecodedPayload;
/// <inheritdoc/> public string GetDeviceIdFor(LoraMessage payload) => payload.EndDeviceIds.DevEui;
/// <inheritdoc/> public string GetApplicationIdFor(LoraMessage payload) => payload.EndDeviceIds.ApplicationIds.ApplicationId;