/// <summary>
/// Gets a stream of points, and responds with statistics about the "trip": number of points,
/// number of known features visited, total distance traveled, and total time spent.
/// </summary>
public async Task<RouteSummary> RecordRoute(Grpc.Core.IAsyncStreamReader<Point> requestStream, Grpc.Core.ServerCallContext context)
{
int pointCount = 0;
int featureCount = 0;
int distance = 0;
Point previous = null;
var stopwatch = new Stopwatch();
stopwatch.Start();
while (await requestStream.MoveNext())
{
var point = requestStream.Current;
pointCount++;
if (CheckFeature(point).Exists())
{
featureCount++;
}
if (previous != null)
{
distance += (int) previous.GetDistance(point);
}
previous = point;
}
stopwatch.Stop();
return new RouteSummary
{
PointCount = pointCount,
FeatureCount = featureCount,
Distance = distance,
ElapsedTime = (int)(stopwatch.ElapsedMilliseconds / 1000)
};
}
/// <summary>
/// Gets a stream of points, and responds with statistics about the "trip": number of points,
/// number of known features visited, total distance traveled, and total time spent.
/// </summary>
public async Task<RouteSummary> RecordRoute(Grpc.Core.ServerCallContext context, Grpc.Core.IAsyncStreamReader<Point> requestStream)
{
int pointCount = 0;
int featureCount = 0;
int distance = 0;
Point previous = null;
var stopwatch = new Stopwatch();
stopwatch.Start();
while (await requestStream.MoveNext())
{
var point = requestStream.Current;
pointCount++;
if (RouteGuideUtil.Exists(CheckFeature(point)))
{
featureCount++;
}
if (previous != null)
{
distance += (int) CalcDistance(previous, point);
}
previous = point;
}
stopwatch.Stop();
return RouteSummary.CreateBuilder().SetPointCount(pointCount)
.SetFeatureCount(featureCount).SetDistance(distance)
.SetElapsedTime((int) (stopwatch.ElapsedMilliseconds / 1000)).Build();
}
/// <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);
}
}
}