public void Handshake(ClickHouseConnectionSettings connectionSettings)
{
_connectionSettings = connectionSettings;
_compressor = connectionSettings.Compress ? Compressor.Create(connectionSettings) : null;
WriteUInt((int)ClientMessageType.Hello);
WriteString(string.IsNullOrEmpty(connectionSettings.ClientName) ? ClientInfo.ClientName : connectionSettings.ClientName);
WriteUInt(ClientInfo.ClientVersionMajor);
WriteUInt(ClientInfo.ClientVersionMinor);
WriteUInt(ClientInfo.ClientRevision);
WriteString(connectionSettings.Database);
WriteString(connectionSettings.User);
WriteString(connectionSettings.Password);
_ioStream.Flush();
var serverHello = ReadUInt();
if (serverHello == (int)ServerMessageType.Hello)
{
var serverName = ReadString();
var serverMajor = ReadUInt();
var serverMinor = ReadUInt();
var serverBuild = ReadUInt();
string serverTz = null, serverDn = null;
ulong serverPatch = 0;
if (serverBuild >= ProtocolCaps.DbmsMinRevisionWithServerTimezone)
{
serverTz = ReadString();
}
if (serverBuild >= ProtocolCaps.DbmsMinRevisionWithServerDisplayName)
{
serverDn = ReadString();
}
if (serverBuild >= ProtocolCaps.DbmsMinRevisionWithServerVersionPatch)
{
serverPatch = (uint)ReadUInt();
}
ServerInfo = new ServerInfo {
Build = serverBuild,
Major = serverMajor,
Minor = serverMinor,
Name = serverName,
Timezone = serverTz,
Patch = (long)serverPatch,
DisplayName = serverDn
};
}
else if (serverHello == (int)ServerMessageType.Exception)
{
_owner.MaybeSetBroken(null);
ReadAndThrowException();
}
else
{
_owner.MaybeSetBroken(null);
throw new FormatException($"Bad message type {serverHello:X} received from server.");
}
}