func NewProspector(cfg *common.Config, states file.States, outlet Outlet) (*Prospector, error) {
prospector := &Prospector{
cfg: cfg,
config: defaultConfig,
outlet: outlet,
harvesterChan: make(chan *input.Event),
done: make(chan struct{}),
wg: sync.WaitGroup{},
states: &file.States{},
channelWg: sync.WaitGroup{},
}
if err := cfg.Unpack(&prospector.config); err != nil {
return nil, err
}
if err := prospector.config.Validate(); err != nil {
return nil, err
}
err := prospector.Init(states.GetStates())
if err != nil {
return nil, err
}
logp.Debug("prospector", "File Configs: %v", prospector.config.Paths)
return prospector, nil
}
// Init sets up the prospector
// It goes through all states coming from the registry. Only the states which match the glob patterns of
// the prospector will be loaded and updated. All other states will not be touched.
func (p *ProspectorLog) Init(states file.States) error {
logp.Debug("prospector", "exclude_files: %s", p.config.ExcludeFiles)
for _, state := range states.GetStates() {
// Check if state source belongs to this prospector. If yes, update the state.
if p.matchesFile(state.Source) {
state.TTL = -1
// Update prospector states and send new states to registry
err := p.Prospector.updateState(input.NewEvent(state))
if err != nil {
logp.Err("Problem putting initial state: %+v", err)
return err
}
}
}
logp.Info("Prospector with previous states loaded: %v", p.Prospector.states.Count())
return nil
}