/// <summary>
/// Gets all features contained within the given bounding rectangle.
/// </summary>
public async Task ListFeatures(Rectangle request, Grpc.Core.IServerStreamWriter<Feature> responseStream, Grpc.Core.ServerCallContext context)
{
var responses = features.FindAll( (feature) => feature.Exists() && request.Contains(feature.Location) );
foreach (var response in responses)
{
await responseStream.WriteAsync(response);
}
}
/// <summary>
/// Gets all features contained within the given bounding rectangle.
/// </summary>
public async Task ListFeatures(Grpc.Core.ServerCallContext context, Rectangle request, Grpc.Core.IServerStreamWriter<Feature> responseStream)
{
int left = Math.Min(request.Lo.Longitude, request.Hi.Longitude);
int right = Math.Max(request.Lo.Longitude, request.Hi.Longitude);
int top = Math.Max(request.Lo.Latitude, request.Hi.Latitude);
int bottom = Math.Min(request.Lo.Latitude, request.Hi.Latitude);
foreach (var feature in features)
{
if (!RouteGuideUtil.Exists(feature))
{
continue;
}
int lat = feature.Location.Latitude;
int lon = feature.Location.Longitude;
if (lon >= left && lon <= right && lat >= bottom && lat <= top)
{
await responseStream.WriteAsync(feature);
}
}
}
/// <summary>
/// Receives a stream of message/location pairs, and responds with a stream of all previous
/// messages at each of those locations.
/// </summary>
public async Task RouteChat(Grpc.Core.IAsyncStreamReader<RouteNote> requestStream, Grpc.Core.IServerStreamWriter<RouteNote> responseStream, Grpc.Core.ServerCallContext context)
{
while (await requestStream.MoveNext())
{
var note = requestStream.Current;
List<RouteNote> prevNotes = AddNoteForLocation(note.Location, note);
foreach (var prevNote in prevNotes)
{
await responseStream.WriteAsync(prevNote);
}
}
}
/// <summary>
/// Receives a stream of message/location pairs, and responds with a stream of all previous
/// messages at each of those locations.
/// </summary>
public async Task RouteChat(Grpc.Core.ServerCallContext context, Grpc.Core.IAsyncStreamReader<RouteNote> requestStream, Grpc.Core.IServerStreamWriter<RouteNote> responseStream)
{
while (await requestStream.MoveNext())
{
var note = requestStream.Current;
List<RouteNote> notes = GetOrCreateNotes(note.Location);
List<RouteNote> prevNotes;
lock (notes)
{
prevNotes = new List<RouteNote>(notes);
}
foreach (var prevNote in prevNotes)
{
await responseStream.WriteAsync(prevNote);
}
lock (notes)
{
notes.Add(note);
}
}
}