1 files changed, 136 insertions, 0 deletions
diff --git a/src/go/collectors/go.d.plugin/modules/pulsar/pulsar.go b/src/go/collectors/go.d.plugin/modules/pulsar/pulsar.go
new file mode 100644
index 000000000..d037a4af3
--- /dev/null
+++ b/src/go/collectors/go.d.plugin/modules/pulsar/pulsar.go
@@ -0,0 +1,136 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+package pulsar
+
+import (
+	_ "embed"
+	"errors"
+	"sync"
+	"time"
+
+	"github.com/netdata/netdata/go/go.d.plugin/agent/module"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/matcher"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/prometheus"
+	"github.com/netdata/netdata/go/go.d.plugin/pkg/web"
+)
+
+//go:embed "config_schema.json"
+var configSchema string
+
+func init() {
+	module.Register("pulsar", module.Creator{
+		JobConfigSchema: configSchema,
+		Defaults: module.Defaults{
+			UpdateEvery: 60,
+		},
+		Create: func() module.Module { return New() },
+	})
+}
+
+func New() *Pulsar {
+	return &Pulsar{
+		Config: Config{
+			HTTP: web.HTTP{
+				Request: web.Request{
+					URL: "http://127.0.0.1:8080/metrics",
+				},
+				Client: web.Client{
+					Timeout: web.Duration(time.Second * 5),
+				},
+			},
+			TopicFilter: matcher.SimpleExpr{
+				Includes: nil,
+				Excludes: []string{"*"},
+			},
+		},
+		once:               &sync.Once{},
+		charts:             summaryCharts.Copy(),
+		nsCharts:           namespaceCharts.Copy(),
+		topicChartsMapping: topicChartsMapping(),
+		cache:              newCache(),
+		curCache:           newCache(),
+	}
+}
+
+type Config struct {
+	web.HTTP    `yaml:",inline" json:""`
+	UpdateEvery int                `yaml:"update_every" json:"update_every"`
+	TopicFilter matcher.SimpleExpr `yaml:"topic_filter" json:"topic_filter"`
+}
+
+type Pulsar struct {
+	module.Base
+	Config `yaml:",inline" json:""`
+
+	charts   *Charts
+	nsCharts *Charts
+
+	prom prometheus.Prometheus
+
+	topicFilter        matcher.Matcher
+	cache              *cache
+	curCache           *cache
+	once               *sync.Once
+	topicChartsMapping map[string]string
+}
+
+func (p *Pulsar) Configuration() any {
+	return p.Config
+}
+
+func (p *Pulsar) Init() error {
+	if err := p.validateConfig(); err != nil {
+		p.Errorf("config validation: %v", err)
+		return err
+	}
+
+	prom, err := p.initPrometheusClient()
+	if err != nil {
+		p.Error(err)
+		return err
+	}
+	p.prom = prom
+
+	m, err := p.initTopicFilerMatcher()
+	if err != nil {
+		p.Error(err)
+		return err
+	}
+	p.topicFilter = m
+
+	return nil
+}
+
+func (p *Pulsar) Check() error {
+	mx, err := p.collect()
+	if err != nil {
+		p.Error(err)
+		return err
+	}
+	if len(mx) == 0 {
+		return errors.New("no metrics collected")
+	}
+	return nil
+}
+
+func (p *Pulsar) Charts() *Charts {
+	return p.charts
+}
+
+func (p *Pulsar) Collect() map[string]int64 {
+	mx, err := p.collect()
+	if err != nil {
+		p.Error(err)
+	}
+
+	if len(mx) == 0 {
+		return nil
+	}
+	return mx
+}
+
+func (p *Pulsar) Cleanup() {
+	if p.prom != nil && p.prom.HTTPClient() != nil {
+		p.prom.HTTPClient().CloseIdleConnections()
+	}
+}