private async Task DirectConnectionLeaveGroup(string connectionString)
{
var serviceManager = new ServiceManagerBuilder().WithOptions(option =>
{
option.ConnectionString = connectionString;
option.ServiceTransportType = ServiceTransportType.Transient;
}).Build();
var hubContext = await serviceManager.CreateHubContextAsync(SignalRConstants.DefaultRestHubName);
if (_connections.Count >= _groupCount)
{
for (var i = 0; i < _connections.Count; i++)
{
var userId = SignalRUtils.GenClientUserIdFromConnectionIndex(_connectionIndex[i]);
try
{
await hubContext.UserGroups.RemoveFromGroupAsync(userId,
SignalRUtils.GroupName(_type, _connectionIndex[i] % _groupCount));
_statisticsCollector.IncreaseLeaveGroupSuccess();
}
catch (Exception e)
{
_statisticsCollector.IncreaseLeaveGroupFail();
Log.Error($"Fail to leave group: {e.Message}");
}
}
}
else
{
for (var i = 0; i < _groupCount; i++)
{
var userId = SignalRUtils.GenClientUserIdFromConnectionIndex(i);
try
{
await hubContext.UserGroups.RemoveFromGroupAsync(
userId,
SignalRUtils.GroupName(_type, i));
_statisticsCollector.IncreaseLeaveGroupSuccess();
}
catch (Exception e)
{
_statisticsCollector.IncreaseLeaveGroupFail();
Log.Error($"Fail to leave group: {e.Message}");
}
}
}
}
public static void SetCallbackLeaveGroup(
IList <IHubConnectionAdapter> connections,
StatisticsCollector statisticsCollector)
{
foreach (var connection in connections)
{
connection.On(SignalRConstants.LeaveGroupCallbackName, () =>
{
statisticsCollector.IncreaseLeaveGroupSuccess();
});
}
}
