/// <summary>
/// Gets all features contained within the given bounding rectangle.
/// </summary>
public override async Task ListFeatures(RouteGuide.Rectangle request, IServerStreamWriter <RouteGuide.Feature> responseStream, ServerCallContext context)
{
var responses = features.FindAll((feature) => feature.Exists() && request.Contains(feature.Location));
foreach (var response in responses)
{
await responseStream.WriteAsync(response);
}
}
/// <summary>
/// Server-streaming example. Calls listFeatures with a rectangle of interest. Prints each response feature as it arrives.
/// </summary>
public async Task ListFeatures(int lowLat, int lowLon, int hiLat, int hiLon)
{
try
{
Log("*** ListFeatures: lowLat={0} lowLon={1} hiLat={2} hiLon={3}", lowLat, lowLon, hiLat,
hiLon);
RouteGuide.Rectangle request = new RouteGuide.Rectangle
{
Lo = new RouteGuide.Point {
Latitude = lowLat, Longitude = lowLon
},
Hi = new RouteGuide.Point {
Latitude = hiLat, Longitude = hiLon
}
};
using (var call = client.ListFeatures(request))
{
var responseStream = call.ResponseStream;
StringBuilder responseLog = new StringBuilder("Result: ");
while (await responseStream.MoveNext())
{
RouteGuide.Feature feature = responseStream.Current;
responseLog.Append(feature.ToString());
}
Log(responseLog.ToString());
}
}
catch (RpcException e)
{
Log("RPC failed " + e);
throw;
}
}
