public async Task Put(Position position, string key, string value)
{
// we should think about having some kind of transaction concept around this
var pkv = new PositionKeyValue { Key = key, Value = value, Latitude = position.Latitude, Longitude = position.Longitude };
var quadKey = CreateGeoKey(position, key);
var existingQuadKey = await this.KeyIndex.Get(key);
if (null != (existingQuadKey))
{
// the value already exists, so delete it
await this.GeoIndex.Delete(existingQuadKey);
}
await Task.WhenAll(this.GeoIndex.Put(quadKey, pkv), this.KeyIndex.Put(key, quadKey));
}
public Task<IEnumerable<PositionKeyValueDistance>> Search(Position position, double radius)
{
// this is work in progress
throw new NotImplementedException();
}
private static string CreateGeoKey(Position position, string key)
{
return string.Format("{0}{1}{2}", position.GetQuadKey(), ((char)254), key);
}