Add in message for bulletins metric

[vanducng]

I have no idea with golang, can you help or suggest any way to add the message comes with each bulletin even.
Thanks so much.

func (c *ProcessGroupsCollector) collect(ch chan<- prometheus.Metric, entity *client.ProcessGroupEntity) {
	bulletinCount := map[string]int{
		"INFO":    0,
		"WARNING": 0,
		"ERROR":   0,
	}
	for i := range entity.Bulletins {
		bulletinCount[entity.Bulletins[i].Bulletin.Level]++
	}

	for level, count := range bulletinCount {
		ch <- prometheus.MustNewConstMetric(
			c.bulletin5mCount,
			prometheus.GaugeValue,
			float64(count),
			entity.Component.Name,
			level,
			entity.Component.ID,

		)
	}

[vanducng]

I think i will go with below code, manage to replicate what did for Level to Message. Because the message will disappear after 5 minutes on Nifi UI, it is important to log it (at least to my case) and send via AlertManager.

func (c *ProcessGroupsCollector) collect(ch chan<- prometheus.Metric, entity *client.ProcessGroupEntity) {
	
	errorCount := map[string]int{}
	for i := range entity.Bulletins {
		errorCount[entity.Bulletins[i].Bulletin.Message]++
	}

	for message, count := range errorCount {
		ch <- prometheus.MustNewConstMetric(
			c.bulletin5mCount,
			prometheus.GaugeValue,
			float64(count),
			entity.Component.Name,
			message,
			entity.Component.ID,
		)
	}