/// <summary>
/// Parses address from system table query response and translates it using the provided <paramref name="translator"/>.
/// </summary>
internal IPEndPoint GetRpcEndPoint(bool isPeersV2, IRow row, IAddressTranslator translator, int defaultPort)
{
IPAddress address;
address = isPeersV2 ? GetRpcAddressFromPeersV2(row) : GetRpcAddressFromLocalPeersV1(row);
if (address == null)
{
return(null);
}
if (TopologyRefresher.BindAllAddress.Equals(address))
{
if (row.ContainsColumn("peer") && !row.IsNull("peer"))
{
// system.peers
address = row.GetValue <IPAddress>("peer");
}
else if (row.ContainsColumn("broadcast_address") && !row.IsNull("broadcast_address"))
{
// system.local
address = row.GetValue <IPAddress>("broadcast_address");
}
else if (row.ContainsColumn("listen_address") && !row.IsNull("listen_address"))
{
// system.local
address = row.GetValue <IPAddress>("listen_address");
}
else
{
ControlConnection.Logger.Error(
"Found host with 0.0.0.0 as rpc_address and nulls as listen_address and broadcast_address. " +
"Because of this, the driver can not connect to this node.");
return(null);
}
ControlConnection.Logger.Warning(
"Found host with 0.0.0.0 as rpc_address, using listen_address ({0}) to contact it instead. " +
"If this is incorrect you should avoid the use of 0.0.0.0 server side.", address.ToString());
}
var rpcPort = defaultPort;
if (isPeersV2)
{
var nullableRpcPort = GetRpcPortFromPeersV2(row);
if (nullableRpcPort == null)
{
ControlConnection.Logger.Warning(
"Found host with NULL native_port, using default port ({0}) to contact it instead. ", rpcPort);
}
else
{
rpcPort = nullableRpcPort.Value;
}
}
return(translator.Translate(new IPEndPoint(address, rpcPort)));
}
/// <summary>
/// Uses system.peers values to build the Address translator
/// </summary>
internal static IPEndPoint GetAddressForPeerHost(Row row, IAddressTranslator translator, int port)
{
var address = row.GetValue <IPAddress>("rpc_address");
if (address == null)
{
return(null);
}
if (BindAllAddress.Equals(address) && !row.IsNull("peer"))
{
address = row.GetValue <IPAddress>("peer");
_logger.Warning(String.Format("Found host with 0.0.0.0 as rpc_address, using listen_address ({0}) to contact it instead. If this is incorrect you should avoid the use of 0.0.0.0 server side.", address));
}
return(translator.Translate(new IPEndPoint(address, port)));
}
/// <summary>
/// Uses system.peers values to build the Address translator
/// </summary>
internal static IPEndPoint GetAddressForPeerHost(Row row, IAddressTranslator translator, int port)
{
var address = row.GetValue<IPAddress>("rpc_address");
if (address == null)
{
return null;
}
if (BindAllAddress.Equals(address) && !row.IsNull("peer"))
{
address = row.GetValue<IPAddress>("peer");
_logger.Warning(String.Format("Found host with 0.0.0.0 as rpc_address, using listen_address ({0}) to contact it instead. If this is incorrect you should avoid the use of 0.0.0.0 server side.", address));
}
return translator.Translate(new IPEndPoint(address, port));
}
/// <summary>
/// Translates Cassandra node address.
/// </summary>
/// <param name="address">Source address.</param>
/// <returns>Result address.</returns>
private IPEndPoint TranslateAddress(IPEndPoint address)
{
return(_addressTranslator.Translate(address) ?? address);
}
