private bool BuildBackups()

in src/Transport/Failover/FailoverTransport.cs [1291:1363]
69 lines of code
18 McCabe index (conditional complexity)

        private bool BuildBackups()
        {
            lock(backupMutex)
            {
            	if (!disposed && (backup || priorityBackup) && backups.Count < backupPoolSize) 
				{
	                List<Uri> backupList = new List<Uri>(priorityList);
                    List<Uri> connectList = ConnectList;
	                foreach(Uri uri in connectList) 
					{
	                    if (!backupList.Contains(uri)) 
						{
	                        backupList.Add(uri);
	                    }
	                }
                    foreach(BackupTransport bt in backups)
                    {
                        if(bt.Disposed)
                        {
                            backups.Remove(bt);
                        }
                    }

                    foreach(Uri u in connectList)
                    {
						if (disposed)
						{
							break;
						}
                        Uri uri = AddExtraQueryOptions(u);
                        if (ConnectedTransportURI != null && !ConnectedTransportURI.Equals(uri))
                        {
                            try
                            {
                                BackupTransport bt = new BackupTransport(this)
                                {
                                    Uri = uri
                                };

                                if(!backups.Contains(bt))
                                {
                                    ITransport t = TransportFactory.CompositeConnect(uri);
                                    t.CommandAsync = bt.OnCommand;
                                    t.Exception = bt.OnException;
                                    t.Start();
                                    bt.Transport = t;
	                                if (priorityBackup && IsPriority(uri))
									{
	                                   priorityBackupAvailable = true;
	                                   backups.Insert(0, bt);
	                                }
									else 
									{
	                                    backups.Add(bt);
	                                }
                                }
                            }
                            catch(Exception e)
                            {
                                Tracer.DebugFormat("Failed to build backup: {0}", e.Message);
                            }
                        }

                        if(backups.Count == BackupPoolSize)
                        {
                            break;
                        }
                    }
                }
            }

            return false;
        }