public Juna ParserPayload(string json)
{
var data = JsonConvert.DeserializeObject <Train>(json);
Juna junaItem = new Juna
{
trainId = data.trainNumber,
speed = data.speed,
longitude = data.location.coordinates[0],
latitude = data.location.coordinates[1]
};
return(junaItem);
}
public List <Juna> ParseJson(string json)
{
List <Juna> trainData = new List <Juna>();
var data = JsonConvert.DeserializeObject <Train[]>(json);
foreach (var item in data)
{
Juna junaItem = new Juna();
junaItem.trainId = item.trainNumber;
junaItem.speed = item.speed;
junaItem.longitude = item.location.coordinates[0];
junaItem.latitude = item.location.coordinates[1];
trainData.Add(junaItem);
}
return(trainData);
}
public static async Task UpdateList(Juna juna)
{
if (!data.Contains(juna))
{
data.Add(juna);
}
else
{
data.Where <Juna>(s => s.trainId == juna.trainId)
.Select(s => {
s.latitude = juna.latitude;
s.longitude = juna.longitude;
s.speed = juna.speed;
return(s);
});
}
}
public async Task GetMQTTDataAsync()
{
Juna data = new Juna();
Parser parser = new Parser();
// Create a new MQTT client.
var factory = new MqttFactory();
var mqttClient = factory.CreateMqttClient();
var options = new MqttClientOptionsBuilder()
.WithTcpServer("rata-mqtt.digitraffic.fi", 1883)
//.WithTls()//secure web socket connection from ws:// to wss://
.Build();
mqttClient.UseConnectedHandler(async e =>
{
Console.WriteLine("### CONNECTED FROM SERVER ###");
await mqttClient.SubscribeAsync(new TopicFilterBuilder().WithTopic("train-locations/#").Build());
});
//establishing connection
await mqttClient.ConnectAsync(options, CancellationToken.None);
mqttClient.UseApplicationMessageReceivedHandler(async e =>
{
//Console.WriteLine($"{Encoding.UTF8.GetString(e.ApplicationMessage.Payload)}");
string strdata = Encoding.UTF8.GetString(e.ApplicationMessage.Payload);
Console.WriteLine(strdata);
data = parser.ParserPayload(strdata);
await TrainData.UpdateList(data);
Console.WriteLine(data);
});
//Console.ReadKey();
}
public static async Task InsertList(Juna juna)
{
data.Add(juna);
}
