func NewOvsSFlowProbesHandlerFromConfig(tb *probes.TopologyProbeBundle, g *graph.Graph, p *mappings.FlowMappingPipeline, a *analyzer.Client) *OvsSFlowProbesHandler {
probe := tb.GetProbe("ovsdb")
if probe == nil {
return nil
}
agent, err := sflow.NewSFlowAgentFromConfig(g)
if err != nil {
logging.GetLogger().Errorf("Unable to start an OVS SFlow probe handler: %s", err.Error())
return nil
}
agent.SetMappingPipeline(p)
if a != nil {
agent.SetAnalyzerClient(a)
}
expire := config.GetConfig().GetInt("cache.expire")
cleanup := config.GetConfig().GetInt("cache.cleanup")
o := NewOvsSFlowProbesHandler(probe.(*probes.OvsdbProbe), agent, expire, cleanup)
agent.SetProbePathGetter(o)
return o
}
func NewOvsSFlowProbesHandler(tb *probes.TopologyProbeBundle, g *graph.Graph, m *mappings.FlowMappingPipeline, a *analyzer.Client) *OvsSFlowProbesHandler {
probe := tb.GetProbe("ovsdb")
if probe == nil {
logging.GetLogger().Error("Agent.ovssflow probe depends on agent.ovsdb topology probe: agent.ovssflow probe can't start properly")
return nil
}
p := probe.(*probes.OvsdbProbe)
o := &OvsSFlowProbesHandler{
Graph: g,
ovsClient: p.OvsMon.OvsClient,
allocator: sflow.NewSFlowAgentAllocator(a, m),
}
return o
}