public async Task RecordFlow(RiverFlowSnapshot snapshot)
{
if (snapshot == null)
{
throw new ArgumentNullException(nameof(snapshot));
}
string gaugeId = null;
try
{
gaugeId = snapshot.Site.UsgsGaugeId;
var client = GetHttpClient();
var uri = this.apiBaseUri ?? (apiBaseUri = this.GetApiBaseUri());
this.logger.LogInformation(
"Posting to '{recordFlowUrl}' ({uri}) for gauge '{gaugeId}'",
RecordFlowUrl,
uri,
gaugeId);
var response = await client.PostAsync(RecordFlowUrl, new JsonContent(snapshot));
response.EnsureSuccessStatusCode();
}
catch (Exception ex)
{
this.logger.LogWarning(ex, "Error posting flow values for gauge {gauge}", gaugeId);
throw;
}
}
public static RiverFlowSnapshot MapFlowData(string usgsGaugeId, StreamFlow usgsStreamFlow)
{
// Current assumptions for simplicity
// 1) One site at a time though API supports multiple
// 2) One parameter value at a time (most recent) though API supports time period
var timeSeries = usgsStreamFlow.Value.GetTimeSeriesForSite(usgsGaugeId);
var snapshot = new RiverFlowSnapshot
{
AsOfUTC = DateTime.UtcNow,
Site = GetSiteInfo(timeSeries.FirstOrDefault()?.SourceInfo)
};
foreach (var ts in timeSeries)
{
var dataValue = GetDataValue(ts);
if (dataValue != null)
{
snapshot.Values.Add(dataValue);
}
}
if (!snapshot.Values.Any())
{
return(null);
}
return(snapshot);
}
public async Task Process(string usgsGaugeId)
{
usgsGaugeId = Usgs.FormatGaugeId(usgsGaugeId);
RiverFlowSnapshot flowData = null;
using (metrics.Measure.Timer.Time(this.requestTimer))
{
flowData = await this.GetRiverFlowData(usgsGaugeId);
}
if (flowData != null)
{
using (metrics.Measure.Timer.Time(this.recordTimer))
{
await this.flowClient.RecordFlow(flowData);
}
}
}
