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// SPDX-License-Identifier: GPL-3.0-or-later
package activemq
import (
"fmt"
"strings"
)
const (
keyQueues = "queues"
keyTopics = "topics"
keyAdvisory = "Advisory"
)
var nameReplacer = strings.NewReplacer(".", "_", " ", "")
func (a *ActiveMQ) collect() (map[string]int64, error) {
metrics := make(map[string]int64)
var (
queues *queues
topics *topics
err error
)
if queues, err = a.apiClient.getQueues(); err != nil {
return nil, err
}
if topics, err = a.apiClient.getTopics(); err != nil {
return nil, err
}
a.processQueues(queues, metrics)
a.processTopics(topics, metrics)
return metrics, nil
}
func (a *ActiveMQ) processQueues(queues *queues, metrics map[string]int64) {
var (
count = len(a.activeQueues)
updated = make(map[string]bool)
unp int
)
for _, q := range queues.Items {
if strings.Contains(q.Name, keyAdvisory) {
continue
}
if !a.activeQueues[q.Name] {
if a.MaxQueues != 0 && count > a.MaxQueues {
unp++
continue
}
if !a.filterQueues(q.Name) {
continue
}
a.activeQueues[q.Name] = true
a.addQueueTopicCharts(q.Name, keyQueues)
}
rname := nameReplacer.Replace(q.Name)
metrics["queues_"+rname+"_consumers"] = q.Stats.ConsumerCount
metrics["queues_"+rname+"_enqueued"] = q.Stats.EnqueueCount
metrics["queues_"+rname+"_dequeued"] = q.Stats.DequeueCount
metrics["queues_"+rname+"_unprocessed"] = q.Stats.EnqueueCount - q.Stats.DequeueCount
updated[q.Name] = true
}
for name := range a.activeQueues {
if !updated[name] {
delete(a.activeQueues, name)
a.removeQueueTopicCharts(name, keyQueues)
}
}
if unp > 0 {
a.Debugf("%d queues were unprocessed due to max_queues limit (%d)", unp, a.MaxQueues)
}
}
func (a *ActiveMQ) processTopics(topics *topics, metrics map[string]int64) {
var (
count = len(a.activeTopics)
updated = make(map[string]bool)
unp int
)
for _, t := range topics.Items {
if strings.Contains(t.Name, keyAdvisory) {
continue
}
if !a.activeTopics[t.Name] {
if a.MaxTopics != 0 && count > a.MaxTopics {
unp++
continue
}
if !a.filterTopics(t.Name) {
continue
}
a.activeTopics[t.Name] = true
a.addQueueTopicCharts(t.Name, keyTopics)
}
rname := nameReplacer.Replace(t.Name)
metrics["topics_"+rname+"_consumers"] = t.Stats.ConsumerCount
metrics["topics_"+rname+"_enqueued"] = t.Stats.EnqueueCount
metrics["topics_"+rname+"_dequeued"] = t.Stats.DequeueCount
metrics["topics_"+rname+"_unprocessed"] = t.Stats.EnqueueCount - t.Stats.DequeueCount
updated[t.Name] = true
}
for name := range a.activeTopics {
if !updated[name] {
// TODO: delete after timeout?
delete(a.activeTopics, name)
a.removeQueueTopicCharts(name, keyTopics)
}
}
if unp > 0 {
a.Debugf("%d topics were unprocessed due to max_topics limit (%d)", unp, a.MaxTopics)
}
}
func (a *ActiveMQ) filterQueues(line string) bool {
if a.queuesFilter == nil {
return true
}
return a.queuesFilter.MatchString(line)
}
func (a *ActiveMQ) filterTopics(line string) bool {
if a.topicsFilter == nil {
return true
}
return a.topicsFilter.MatchString(line)
}
func (a *ActiveMQ) addQueueTopicCharts(name, typ string) {
rname := nameReplacer.Replace(name)
charts := charts.Copy()
for _, chart := range *charts {
chart.ID = fmt.Sprintf(chart.ID, typ, rname)
chart.Title = fmt.Sprintf(chart.Title, name)
chart.Fam = typ
for _, dim := range chart.Dims {
dim.ID = fmt.Sprintf(dim.ID, typ, rname)
}
}
_ = a.charts.Add(*charts...)
}
func (a *ActiveMQ) removeQueueTopicCharts(name, typ string) {
rname := nameReplacer.Replace(name)
chart := a.charts.Get(fmt.Sprintf("%s_%s_messages", typ, rname))
chart.MarkRemove()
chart.MarkNotCreated()
chart = a.charts.Get(fmt.Sprintf("%s_%s_unprocessed_messages", typ, rname))
chart.MarkRemove()
chart.MarkNotCreated()
chart = a.charts.Get(fmt.Sprintf("%s_%s_consumers", typ, rname))
chart.MarkRemove()
chart.MarkNotCreated()
}
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