func NewOvsdbProbeFromConfig(g *graph.Graph, n *graph.Node) *OvsdbProbe {
address := config.GetConfig().GetString("ovs.ovsdb")
var protocol string
var target string
if strings.HasPrefix(address, "unix://") {
target = strings.TrimPrefix(address, "unix://")
protocol = "unix"
} else if strings.HasPrefix(address, "tcp://") {
target = strings.TrimPrefix(address, "tcp://")
protocol = "tcp"
} else {
// fallback to the original address format addr:port
addr, port, err := config.GetHostPortAttributes("ovs", "ovsdb")
if err != nil {
logging.GetLogger().Errorf("Configuration error: %s", err.Error())
return nil
}
protocol = "tcp"
target = fmt.Sprintf("%s:%d", addr, port)
}
return NewOvsdbProbe(g, n, protocol, target)
}
func NewSFlowAgentFromConfig(u string, ft *flow.Table) (*SFlowAgent, error) {
addr, port, err := config.GetHostPortAttributes("sflow", "listen")
if err != nil {
return nil, err
}
return NewSFlowAgent(u, addr, port, ft), nil
}
func NewServerFromConfig(s string) (*Server, error) {
auth, err := NewAuthenticationBackendFromConfig()
if err != nil {
return nil, err
}
addr, port, err := config.GetHostPortAttributes(s, "listen")
if err != nil {
return nil, errors.New("Configuration error: " + err.Error())
}
return NewServer(s, addr, port, auth), nil
}