private IBoltProtocol SelectBoltProtocol(BoltProtocolVersion version, IDictionary <string, string> routingContext)
{
var boltProtocol = BoltProtocolFactory.ForVersion(version, routingContext);
Reader = boltProtocol.NewReader(_tcpSocketClient.ReadStream, _bufferSettings, _logger);
Writer = boltProtocol.NewWriter(_tcpSocketClient.WriteStream, _bufferSettings, _logger);
return(boltProtocol);
}
private IBoltProtocol SelectBoltProtocol(int version)
{
var boltProtocol = BoltProtocolFactory.ForVersion(version);
Reader = boltProtocol.NewReader(_tcpSocketClient.ReadStream, _bufferSettings, _logger);
Writer = boltProtocol.NewWriter(_tcpSocketClient.WriteStream, _bufferSettings, _logger);
return(boltProtocol);
}
public void Start()
{
_connMetricsListener?.ConnectionConnecting(_connEvent);
_tcpSocketClient.Connect(_uri);
SetOpened();
_logger?.Debug($"~~ [CONNECT] {_uri}");
_connMetricsListener?.ConnectionConnected(_connEvent);
var version = DoHandshake();
_boltProtocol = BoltProtocolFactory.Create(version, _tcpSocketClient, _bufferSettings, _logger);
}
public Task StartAsync()
{
TaskCompletionSource <object> tcs = new TaskCompletionSource <object>();
_connMetricsListener?.ConnectionConnecting(_connEvent);
_tcpSocketClient.ConnectAsync(_uri)
.ContinueWith(t =>
{
if (t.IsFaulted)
{
tcs.SetException(t.Exception.GetBaseException());
}
else if (t.IsCanceled)
{
tcs.SetCanceled();
}
else
{
SetOpened();
_logger?.Debug($"~~ [CONNECT] {_uri}");
_connMetricsListener?.ConnectionConnected(_connEvent);
return(DoHandshakeAsync());
}
return(Task.FromResult(-1));
}, TaskContinuationOptions.ExecuteSynchronously).Unwrap()
.ContinueWith(t =>
{
int version = t.Result;
if (version != -1)
{
try
{
_boltProtocol = BoltProtocolFactory.Create(version, _tcpSocketClient, _bufferSettings, _logger);
tcs.SetResult(null);
}
catch (AggregateException exc)
{
tcs.SetException(exc.GetBaseException());
}
catch (Exception exc)
{
tcs.SetException(exc);
}
}
}, TaskContinuationOptions.ExecuteSynchronously);
return(tcs.Task);
}
private int DoHandshake()
{
var data = BoltProtocolFactory.PackSupportedVersions();
_tcpSocketClient.WriteStream.Write(data, 0, data.Length);
_tcpSocketClient.WriteStream.Flush();
_logger?.Debug("C: [HANDSHAKE] ", data);
data = new byte[4];
_tcpSocketClient.ReadStream.Read(data, 0, data.Length);
var agreedVersion = BoltProtocolFactory.UnpackAgreedVersion(data);
_logger?.Debug($"S: [HANDSHAKE] {agreedVersion}");
return(agreedVersion);
}
private async Task <int> DoHandshakeAsync()
{
var data = BoltProtocolFactory.PackSupportedVersions();
await _tcpSocketClient.WriteStream.WriteAsync(data, 0, data.Length).ConfigureAwait(false);
await _tcpSocketClient.WriteStream.FlushAsync().ConfigureAwait(false);
_logger?.Debug("C: [HANDSHAKE] ", data);
data = new byte[4];
await _tcpSocketClient.ReadStream.ReadAsync(data, 0, data.Length).ConfigureAwait(false);
var agreedVersion = BoltProtocolFactory.UnpackAgreedVersion(data);
_logger?.Debug($"S: [HANDSHAKE] {agreedVersion}");
return(agreedVersion);
}
private async Task <BoltProtocolVersion> DoHandshakeAsync()
{
var data = BoltProtocolFactory.PackSupportedVersions(NumSupportedVersions);
await _tcpSocketClient.WriteStream.WriteAsync(data, 0, data.Length).ConfigureAwait(false);
await _tcpSocketClient.WriteStream.FlushAsync().ConfigureAwait(false);
_logger?.Debug("C: [HANDSHAKE] {0}", data.ToHexString());
data = new byte[4];
var read = await _tcpSocketClient.ReadStream.ReadAsync(data, 0, data.Length).ConfigureAwait(false);
if (read < data.Length)
{
throw new IOException($"Unexpected end of stream when performing handshake, read returned {read}");
}
var agreedVersion = BoltProtocolFactory.UnpackAgreedVersion(data);
_logger?.Debug("S: [HANDSHAKE] {0}.{1}", agreedVersion.MajorVersion, agreedVersion.MinorVersion);
return(agreedVersion);
}
