private void AssertValidConnection(IncomingConnectionInfo connectionInfo)
{
//precaution, should never happen..
if (string.IsNullOrWhiteSpace(connectionInfo.SourceDatabaseId) ||
Guid.TryParse(connectionInfo.SourceDatabaseId, out Guid sourceDbId) == false)
{
throw new InvalidOperationException(
$"Failed to parse source database Id. What I got is {(string.IsNullOrWhiteSpace(connectionInfo.SourceDatabaseId) ? "<empty string>" : Database.DbId.ToString())}. This is not supposed to happen and is likely a bug.");
}
if (sourceDbId == Database.DbId)
{
throw new InvalidOperationException(
$"Cannot have replication with source and destination being the same database. They share the same db id ({connectionInfo} - {Database.DbId})");
}
if (_server.IsPassive())
{
throw new InvalidOperationException(
$"Cannot accept the incoming replication connection from {connectionInfo.SourceUrl}, because this node is in passive state.");
}
if (_incoming.TryRemove(connectionInfo.SourceDatabaseId, out IncomingReplicationHandler value))
{
if (_log.IsInfoEnabled)
{
_log.Info(
$"Disconnecting existing connection from {value.FromToString} because we got a new connection from the same source db");
}
IncomingReplicationRemoved?.Invoke(value);
value.Dispose();
}
}
private void OnIncomingReceiveFailed(IncomingReplicationHandler instance, Exception e)
{
using (instance)
{
if (_incoming.TryRemove(instance.ConnectionInfo.SourceDatabaseId, out _))
{
IncomingReplicationRemoved?.Invoke(instance);
}
instance.Failed -= OnIncomingReceiveFailed;
instance.DocumentsReceived -= OnIncomingReceiveSucceeded;
if (_log.IsInfoEnabled)
{
_log.Info($"Incoming replication handler has thrown an unhandled exception. ({instance.FromToString})", e);
}
}
}
