public void GetDatastreamTest()
{
// act
var datastream = client.GetDatastream("760827").Result.Result;
var observations = datastream.GetObservations(client).Result.Result;
var observedProperty = datastream.GetObservedProperty(client).Result.Result;
var sensor = datastream.GetSensor(client).Result.Result;
var thing = datastream.GetThing(client).Result.Result;
// assert
Assert.IsTrue(datastream.Id == "760827");
Assert.IsTrue(datastream.SelfLink == "http://scratchpad.sensorup.com/OGCSensorThings/v1.0/Datastreams(760827)");
Assert.IsTrue(datastream.Description == "Data stream description");
Assert.IsTrue(datastream.Name == "NYP_DATASTREM_4321");
Assert.IsTrue(datastream.ObservationType == "http://www.opengis.net/def/observationType/OGC-OM/2.0/OM_Measurement");
Assert.IsTrue(datastream.UnitOfMeasurement.Symbol == "BPM");
Assert.IsTrue(datastream.UnitOfMeasurement.Name == "Beats Per Minute");
Assert.IsTrue(datastream.UnitOfMeasurement.Definition == "http://www.qudt.org/qudt/owl/1.0.0/unit/Instances.html#BPM");
Assert.IsTrue(datastream.ObservationsNavigationLink == "http://scratchpad.sensorup.com/OGCSensorThings/v1.0/Datastreams(760827)/Observations");
Assert.IsTrue(datastream.ObservedPropertyNavigationLink == "http://scratchpad.sensorup.com/OGCSensorThings/v1.0/Datastreams(760827)/ObservedProperty");
Assert.IsTrue(datastream.SensorNavigationLink == "http://scratchpad.sensorup.com/OGCSensorThings/v1.0/Datastreams(760827)/Sensor");
Assert.IsTrue(datastream.ThingNavigationLink == "http://scratchpad.sensorup.com/OGCSensorThings/v1.0/Datastreams(760827)/Thing");
Assert.IsTrue(observations.Count > 0);
Assert.IsTrue(observedProperty.Description == "acceleration of sensor");
Assert.IsTrue(sensor.Id == "760611");
Assert.IsTrue(thing.Id == "760737");
}
private async void LoadData()
{
var client = new SensorThingsClient(serverurl);
var odata = new OdataQuery {
QueryExpand = new QueryExpand(new[]
{
new Expand(new[] { "Observations" })
}
)
};
var response = await client.GetDatastream(datastreamid, odata);
var datastream = response.Result;
var lineSerie = new OxyPlot.Series.LineSeries
{
StrokeThickness = 2,
MarkerSize = 3,
MarkerStroke = Colors.GetColors[0],
MarkerType = MarkerTypes.markerTypes[0],
CanTrackerInterpolatePoints = false,
Title = datastream.Description,
Smooth = false,
};
var obs = datastream.Observations.OrderBy(m => m.PhenomenonTime.Start);
foreach (var observation in obs)
{
if (observation.PhenomenonTime != null)
{
var time = observation.GetPhenomenonTime(true);
var res = Convert.ToDouble(observation.Result);
lineSerie.Points.Add(new DataPoint(OxyPlot.Axes.DateTimeAxis.ToDouble(time), res));
}
}
plotModel.Series.Add(lineSerie);
plotview.InvalidatePlot();
}
private async void LoadData()
{
var client = new SensorThingsClient(serverurl);
var response = await client.GetDatastream(datastreamid);
var datastream = response.Result;
var observationsResponse = await datastream.GetObservations(client);
var observations = observationsResponse.Result;
var obs = observations.Items.OrderBy(m => m.PhenomenonTime.Start);
foreach (var observation in obs)
{
var lPhenomenonTime = observation.GetPhenomenonTime(true).Value;
var res = Convert.ToDouble(observation.Result);
var newpoint = new DateTimePoint(lPhenomenonTime, res);
Dispatcher.Invoke(() =>
{
SeriesCollection[0].Values.Add(newpoint);
});
}
}
void Start()
{
if (server.Contains("https"))
{
//trust the certificate...
ServicePointManager.ServerCertificateValidationCallback = (a, b, c, d) => { return(true); };
}
var client = new SensorThingsClient(server);
var ds = client.GetDatastream(datastream);
lastObservation = ds.GetObservations().Items.First().Result.ToString();
// todo: do something with the location...
// var dsLocation = ds.GetThing().GetLocations().Items.First();
Debug.Log("Last observation: " + lastObservation);
var mqttclient = new MqttClient(new Uri(server).Host);
mqttclient.Connect(Guid.NewGuid().ToString());
mqttclient.Subscribe(new string[] { $"Datastreams({datastream})/Observations" },
new byte[] { MqttMsgBase.QOS_LEVEL_EXACTLY_ONCE });
mqttclient.MqttMsgPublishReceived += client_MqttMsgPublishReceived;
go = new GameObject();
var tr = go.GetComponent <Transform>();
var p = new Vector3(0, 0, 0);
var q = new Quaternion(0, 0, 0, 0);
tr.SetPositionAndRotation(p, q);
var myText = go.AddComponent <TextMesh>();
myText.name = "temperature";
myText.fontSize = 50;
myText.anchor = TextAnchor.LowerCenter;
myText.text = lastObservation;
}
static void Main()
{
Console.WriteLine("Sample console app for SensorThings API client");
var server = "http://scratchpad.sensorup.com/OGCSensorThings/v1.0/";
var client = new SensorThingsClient(server);
Console.WriteLine("Create observation for datastream 18");
var datastream = new Datastream {
Id = "263"
};
var observation = new Observation
{
Datastream = datastream,
PhenomenonTime = new DateTimeRange(DateTime.UtcNow),
Result = 100
};
// do not create observations for now
_ = client.CreateObservation(observation).Result;
Console.WriteLine("Retrieve all paged datastreams...");
var response = client.GetDatastreamCollection().Result;
var page = response.Result;
var pagenumber = 1;
while (page != null)
{
Console.WriteLine("---------------------------------------");
WritePage(response.Result);
var pageResponse = page.GetNextPage().Result;
page = pageResponse?.Result;
pagenumber++;
}
Console.WriteLine("End retrieving datastreams...");
Console.WriteLine("Number of pages: " + pagenumber);
var datastreamResponse = client.GetDatastream("263").Result;
datastream = datastreamResponse.Result;
var observationsResponse = datastream.GetObservations(client).Result;
var observations = observationsResponse.Result;
Console.WriteLine("Number if observations: " + observations.Count);
Console.WriteLine("Sample with locations");
var locationsResponse = client.GetLocationCollection().Result;
var locations = locationsResponse.Result;
// Get location without using GeoJSON.NET (works only for points)
var firstlocation = locations.Items[0];
var feature = (JObject)firstlocation.Feature;
var lon = feature.First.First.First.Value <double>();
var lat = feature.First.First.Last.Value <double>();
Console.WriteLine($"Location: {lon},{lat}");
// if using GeoJSON.NET use something like:
// var p = JsonConvert.DeserializeObject<Point>(feature.ToString());
// var ipoint = (GeographicPosition)p.Coordinates;
// Console.WriteLine("Location: " + ipoint.Longitude + ", " + ipoint.Latitude);
Console.WriteLine("Program ends... Press a key to continue.");
Console.ReadKey();
}