public async Task <IActionResult> Network([FromQuery] double lat, [FromQuery] double lon, [FromQuery] double distance, [FromQuery] bool includeStats = false, [FromQuery] bool geojson = false, [FromQuery] int?page = null, [FromQuery] int pageCount = 50)
{
try
{
var nldi_sa = new NLDIServiceAgent(this.NLDIsettings, this.Navigationsettings);
var isOk = await nldi_sa.ReadNLDIAsync(lat, lon, distance);
if (!isOk)
{
throw new Exception("Failed to retrieve NLDI data");
}
JObject nldi_stations = (JObject)nldi_sa.getStations();
var stationCodes = new List <string>();
if (nldi_stations["features"] != null)
{
var count = nldi_stations["features"].Count();
if (count == 0)
{
sm("No stations located within search distance.", MessageType.warning);
}
foreach (var feat in nldi_stations["features"].Children())
{
var id = (string)feat["properties"]["identifier"];
string splitID = id.Split(new string[] { "-" }, StringSplitOptions.None)[1];
stationCodes.Add(splitID);
}
if (count > 0)
{
var stations = agent.GetStations(null, null, null, null, null, null, includeStats, null, stationCodes);
// need to pull in geojson changes and use that
if (geojson)
{
return(Ok(GeojsonFormatter.ToGeojson(stations)));
}
// get number of items to skip for pagination
// checking for page number to be sent for this so it doesn't cause issues in StreamStats for now
if (page != null)
{
var skip = (Convert.ToInt32(page) - 1) * pageCount;
sm("Returning page " + page + " of " + (stations.Count() / pageCount + 1) + ".");
sm("Total Count: " + stations.Count());
stations = stations.Skip(skip).Take(pageCount);
}
return(Ok(stations));
}
}
sm("No stations located within search distance.", MessageType.warning);
return(Ok(nldi_stations));
}
catch (Exception ex)
{
return(await HandleExceptionAsync(ex));
}
}
public NavigationAgent(IOptions <NetworkSettings> NetworkSettings, IHttpContextAccessor httpContextAccessor)
{
this._messages = httpContextAccessor.HttpContext.Items;
nldiAgent = new NLDIServiceAgent(NetworkSettings.Value.NLDI);
nldiAgent2 = new NLDIServiceAgent(new Resource()
{
baseurl = "https://cida-test.er.usgs.gov", resources = NetworkSettings.Value.NLDI.resources
});
ssAgent = new StreamStatsServiceAgent(NetworkSettings.Value.StreamStats);
NavDBConnectionstring = NetworkSettings.Value.DBConnectionString;
//deep clone to ensure objects stay stateless
availableNetworks = JsonConvert.DeserializeObject <List <Network> >(JsonConvert.SerializeObject(NetworkSettings.Value.Networks));
}
public async Task <IActionResult> Get([FromQuery] Int32?featureid, [FromQuery] double?x, [FromQuery] double?y)
{
//returns list of available Navigations
try
{
List <Dictionary <string, object> > results = null;
if (!featureid.HasValue && (!x.HasValue && !y.HasValue))
{
return(new BadRequestObjectResult("An featureid or location (x,y) must be specified."));
}
if (x.HasValue && y.HasValue)
{
var agent = new NLDIServiceAgent(settings.NLDI);
featureid = Convert.ToInt32(agent.GetLocalCatchmentAsync(new Point(new Position(y.Value, x.Value))
{
CRS = new NamedCRS("EPSG:4326")
}).Features.FirstOrDefault().Properties["featureid"]);
}
using (var NavDBOps = new NavigationDBOps(settings.DBConnectionString))
{
results = NavDBOps.GetAvailableProperties(new List <int>()
{
featureid.Value
}).ToList();
}//end using
return(Ok(results));
}
catch (Exception ex)
{
return(HandleException(ex));
}
}
