public static string ToLineProtocolString(this MyStrom device, string measurement, long unixTimeSeconds)
{
var stringBuilder = new StringBuilder();
stringBuilder.Append(measurement);
stringBuilder.Append(",");
stringBuilder.Append($"{nameof(device.Name).ToLowerInvariant()}={device.Name} ");
stringBuilder.Append($"{nameof(device.Report.Power).ToLowerInvariant()}={device.Report.Power.ToString("0.000000", CultureInfo.InvariantCulture)},");
stringBuilder.Append($"{nameof(device.Report.Relay).ToLowerInvariant()}={device.Report.Relay.ToString().ToLowerInvariant()} ");
stringBuilder.Append(unixTimeSeconds);
return(stringBuilder.ToString());
}
private static IEnumerable <MyStrom> ParseDevicesFromEnv(string envString)
{
var list = new List <MyStrom>();
var splitPairs = envString.Split(';');
foreach (var splitPair in splitPairs)
{
var keyValue = splitPair.Split('=');
var myStromDevice = new MyStrom
{
Name = keyValue[0],
Address = keyValue[1]
};
list.Add(myStromDevice);
}
return(list);
}
public void SendMetric(MyStrom deviceReport, DateTime timeStamp)
{
var webClient = new WebClient
{
QueryString = new NameValueCollection
{
{ "db", _configuration.InfluxDbDatabase },
{ "u", _configuration.InfluxDbUsername },
{ "p", _configuration.InfluxDbPassword },
{ "precision", "s" }
}
};
var uri = new Uri(_configuration.InfluxDbAddress + "/write");
Console.WriteLine($"[{DateTime.UtcNow}] sending metric to InfluxDB for {deviceReport.Name}");
webClient.UploadStringAsync(uri, deviceReport.ToLineProtocolString(_configuration.InfluxDbMeasurement,
new DateTimeOffset(timeStamp).ToUnixTimeSeconds()));
}
public static async Task <MyStrom> GetReport(MyStrom device)
{
Console.WriteLine($"[{DateTime.UtcNow}] GET report of {device.Name} on {device.Address}");
var client = new HttpClient();
var response = await client.GetAsync(device.ReportUrl);
response.EnsureSuccessStatusCode();
var content = await response.Content.ReadAsStringAsync();
var deserializerSettings = new JsonSerializerSettings
{
NullValueHandling = NullValueHandling.Ignore,
MissingMemberHandling = MissingMemberHandling.Ignore
};
var result = JsonConvert.DeserializeObject <Report>(content, deserializerSettings);
return(new MyStrom
{
Name = device.Name,
Report = result
});
}
