private async Task<IEnumerable<AssetLocation>> GetNearestAssetLocations(AssetSearchRequest assetRequest)
{
var geoNearOptions = new BsonDocument {
{ "near", new BsonDocument {
{ "type", "Point" },
{ "coordinates", new BsonArray(assetRequest.Location.Point.coordinates) },
} },
{ "distanceField", "Distance" },
{ "maxDistance", assetRequest.Radius },
{ "limit" , assetRequest.Limit },
{ "spherical" , true }
};
var pipeline = new List<BsonDocument>();
pipeline.Add(new BsonDocument { { "$geoNear", geoNearOptions } });
var result = new List<AssetLocationWithDistance>();
using (var cursor = await _dbContext.AssetLocations.AggregateAsync<BsonDocument>(pipeline))
{
while (await cursor.MoveNextAsync())
{
result.AddRange(cursor.Current.Select(x => BsonSerializer.Deserialize<AssetLocationWithDistance>(x)));
}
}
return result;
}
private async Task <IEnumerable <AssetLocation> > GetNearestAssetLocations(AssetSearchRequest assetRequest)
{
var geoNearOptions = new BsonDocument {
{ "near", new BsonDocument {
{ "type", "Point" },
{ "coordinates", new BsonArray(assetRequest.Location.Point.coordinates) },
} },
{ "distanceField", "Distance" },
{ "maxDistance", assetRequest.Radius },
{ "limit", assetRequest.Limit },
{ "spherical", true }
};
var pipeline = new List <BsonDocument>();
pipeline.Add(new BsonDocument {
{ "$geoNear", geoNearOptions }
});
var result = new List <AssetLocationWithDistance>();
using (var cursor = await _dbContext.AssetLocations.AggregateAsync <BsonDocument>(pipeline))
{
while (await cursor.MoveNextAsync())
{
result.AddRange(cursor.Current.Select(x => BsonSerializer.Deserialize <AssetLocationWithDistance>(x)));
}
}
return(result);
}
public async Task<IEnumerable<AssetWithLocationModel>> FindEligibleAssets(AssetSearchRequest assetRequest)
{
if (assetRequest.Location.Point == null)
throw new NotImplementedException("Blank point with address is not supported yet");
if (assetRequest.Strategy == SearchStrategy.DEEP)
throw new NotImplementedException("Deep search is not implemented yet");
var nearestAssets = await GetNearestAssetLocations(assetRequest);
var result = await nearestAssets.Populate(x => x.Asset_Id, _dbContext.Assets);
return result.Select(x => new AssetWithLocationModel(x.TDoc, x.FDoc));
}
public async Task<IHttpActionResult> Search(
double lat, double lon, string address, double? radius,
int limit = AppConstants.DefaultAssetSearchLimit, SearchStrategy strategy = SearchStrategy.QUICK)
{
var request = new AssetSearchRequest()
{
Location = new DefaultAddress(address, new Data.Model.GeoJson.Point(new double[] { lon, lat }.ToList())),
Limit = limit,
Radius = radius,
Strategy = strategy
};
var result = await provider.FindEligibleAssets(request);
return Ok(result);
}
public async Task <IHttpActionResult> Search(
double lat, double lon, string address, double?radius,
int limit = AppConstants.DefaultAssetSearchLimit, SearchStrategy strategy = SearchStrategy.QUICK)
{
var request = new AssetSearchRequest()
{
Location = new DefaultAddress(address, new Data.Model.GeoJson.Point(new double[] { lon, lat }.ToList())),
Limit = limit,
Radius = radius,
Strategy = strategy
};
var result = await provider.FindEligibleAssets(request);
return(Ok(result));
}
public async Task <IEnumerable <AssetWithLocationModel> > FindEligibleAssets(AssetSearchRequest assetRequest)
{
if (assetRequest.Location.Point == null)
{
logger.Error("assetRequest.Location.Point is null");
throw new NotImplementedException("Blank point with address is not supported yet");
}
if (assetRequest.Strategy == SearchStrategy.DEEP)
{
logger.Error("Deep search is not implemented yet");
throw new NotImplementedException("Deep search is not implemented yet");
}
var nearestAssets = await GetNearestAssetLocations(assetRequest);
var result = await nearestAssets.Populate(x => x.Asset_Id, _dbContext.Assets);
return(result.Select(x => new AssetWithLocationModel(x.TDoc, x.FDoc)));
}
