public async Task <bool> Disconnect()
{
try
{
//start timmer for connect to server
_timer.Enabled = false;
if (_connectionStatus == ConnectionStatusEnum.Connected)
{
var response = _coreComClient.ClientDisconnectFromServer(new DisconnectFromServerRequest
{
ClientId = _coreComOptions.ClientId
}, GetCallOptions(false));
//log disconnected
LogEventOccurred(new LogEvent {
ClientId = _coreComOptions.ClientId, Description = response.Response
});
}
_coreComClient = null;
await _channel.ShutdownAsync();
}
catch (Exception ex)
{
LogErrorOccurred(ex, new CoreComMessageResponse {
ClientId = _coreComOptions.ClientId
});
}
finally
{
ConnectionStatusChange(ConnectionStatusEnum.Disconnected);
}
return(true);
}
/// <summary>
/// Open the channel to the server. this is trigger first time on connect or if the server has restared.
/// </summary>
/// <returns></returns>
private async Task <bool> OpenChannel()
{
try
{
if (_connectionStatus == ConnectionStatusEnum.Connecting)
{
return(false);
}
ConnectionStatusChange(ConnectionStatusEnum.Connecting);
//this is so you can debug on mac and emulator the server has "EndpointDefaults": { "Protocols": "Http1"
// Return `true` to allow certificates that are untrusted/invalid
if (_coreComOptions.DangerousAcceptAnyServerCertificateValidator)
{
_httpHandler = new GrpcWebHandler(GrpcWebMode.GrpcWebText, new HttpClientHandler {
ServerCertificateCustomValidationCallback = HttpClientHandler.DangerousAcceptAnyServerCertificateValidator
});
}
else
{
_httpHandler = new GrpcWebHandler(GrpcWebMode.GrpcWebText, new HttpClientHandler());
}
//Check if the channel is open den shutdown before create new
if (_channel != null)
{
await _channel.ShutdownAsync();
}
_channel = GrpcChannel.ForAddress($"{_coreComOptions.ServerAddress}", new GrpcChannelOptions
{
HttpHandler = _httpHandler,
MaxReceiveMessageSize = null, // 5 * 1024 * 1024, // 5 MB
MaxSendMessageSize = null //2 * 1024 * 1024 // 2 MB
});
if (_coreComClient != null)
{
_coreComClient = null;
}
_coreComClient = new Proto.CoreCom.CoreComClient(_channel);
//Wait for channel to open for 5 sec default
//Log outgoing meesage
var connectMessage = new ConnectToServerRequest {
ClientId = _coreComOptions.ClientId
};
var connectEvent = new LogEvent {
Description = "Connected to Server ", TransferStatus = TransferStatusEnum.Transferred, MessageSize = connectMessage.CalculateSize()
};
LogEventOccurred(connectEvent);
var response = await _coreComClient.ClientConnectToServerAsync(connectMessage, GetCallOptions(true).WithWaitForReady(true));
//log request
//log response
LogEventOccurred(new LogEvent {
Description = response.Response, TransferStatus = TransferStatusEnum.Recived, MessageSize = response.CalculateSize()
});
Console.WriteLine("Connected to Server " + _coreComOptions.ServerAddress);
ConnectionStatusChange(ConnectionStatusEnum.Connected);
//Start timmer for check queue server and client
if (_coreComOptions.GrpcOptions.RequestServerQueueIntervalSec > 0)
{
_checkQueueTimer.Enabled = true;
}
LatestRpcExceptionChange(null);
return(true);
}
catch (RpcException ex)
{
LatestRpcExceptionChange(ex);
ConnectionStatusChange(ConnectionStatusEnum.Disconnected);
LogEventOccurred(new LogEvent {
Description = ex.Message, ConnectionStatus = _connectionStatus
});
_timer.Enabled = true;
return(false);
}
catch (Exception ex)
{
ConnectionStatusChange(ConnectionStatusEnum.Disconnected);
LogErrorOccurred(ex, new CoreComMessageResponse {
ClientId = _coreComOptions.ClientId
});
_timer.Enabled = true;
return(false);
}
}
