mirror of
https://github.com/linka-cloud/grpc.git
synced 2024-12-23 01:10:46 +00:00
117 lines
2.8 KiB
Go
117 lines
2.8 KiB
Go
package metrics
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import (
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"context"
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grpc_prometheus "github.com/grpc-ecosystem/go-grpc-middleware/providers/prometheus"
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"github.com/prometheus/client_golang/prometheus"
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"go.opentelemetry.io/otel/trace"
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"google.golang.org/grpc"
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"go.linka.cloud/grpc-toolkit/interceptors"
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"go.linka.cloud/grpc-toolkit/service"
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)
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func DefaultExemplarFromCtx(ctx context.Context) prometheus.Labels {
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if span := trace.SpanContextFromContext(ctx); span.IsSampled() {
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return prometheus.Labels{"traceID": span.TraceID().String()}
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}
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return nil
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}
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type Registerer interface {
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Register(svc service.Service)
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}
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type Interceptors interface {
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ServerInterceptors
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ClientInterceptors
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}
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type ServerInterceptors interface {
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Registerer
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interceptors.ServerInterceptors
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prometheus.Collector
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}
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type ClientInterceptors interface {
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interceptors.ClientInterceptors
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}
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type metrics struct {
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s *grpc_prometheus.ServerMetrics
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c *grpc_prometheus.ClientMetrics
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o *options
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}
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func (m *metrics) Describe(descs chan<- *prometheus.Desc) {
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if m.s != nil {
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m.s.Describe(descs)
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}
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}
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func (m *metrics) Collect(c chan<- prometheus.Metric) {
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if m.s != nil {
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m.s.Collect(c)
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}
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}
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func (m *metrics) Register(svc service.Service) {
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if m.s != nil {
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m.s.InitializeMetrics(svc)
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}
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}
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func NewInterceptors(opts ...Option) Interceptors {
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o := (&options{}).apply(opts...)
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s := grpc_prometheus.NewServerMetrics(
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grpc_prometheus.WithServerCounterOptions(o.copts...),
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grpc_prometheus.WithServerHandlingTimeHistogram(o.hopts...),
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)
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c := grpc_prometheus.NewClientMetrics(
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grpc_prometheus.WithClientCounterOptions(o.copts...),
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grpc_prometheus.WithClientHandlingTimeHistogram(o.hopts...),
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)
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m := &metrics{s: s, c: c, o: o}
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o.reg.MustRegister(m)
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return m
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}
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func NewServerInterceptors(opts ...Option) ServerInterceptors {
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o := (&options{}).apply(opts...)
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s := grpc_prometheus.NewServerMetrics(
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grpc_prometheus.WithServerCounterOptions(o.copts...),
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grpc_prometheus.WithServerHandlingTimeHistogram(o.hopts...),
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)
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m := &metrics{s: s, o: o}
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o.reg.MustRegister(m)
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return m
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}
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func NewClientInterceptors(opts ...Option) ClientInterceptors {
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o := (&options{}).apply(opts...)
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c := grpc_prometheus.NewClientMetrics(
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grpc_prometheus.WithClientCounterOptions(o.copts...),
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grpc_prometheus.WithClientHandlingTimeHistogram(o.hopts...),
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)
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m := &metrics{c: c, o: o}
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o.reg.MustRegister(m)
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return m
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}
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func (m *metrics) UnaryServerInterceptor() grpc.UnaryServerInterceptor {
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return m.s.UnaryServerInterceptor(grpc_prometheus.WithExemplarFromContext(m.o.fn))
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}
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func (m *metrics) StreamServerInterceptor() grpc.StreamServerInterceptor {
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return m.s.StreamServerInterceptor()
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}
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func (m *metrics) UnaryClientInterceptor() grpc.UnaryClientInterceptor {
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return m.c.UnaryClientInterceptor()
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}
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func (m *metrics) StreamClientInterceptor() grpc.StreamClientInterceptor {
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return m.c.StreamClientInterceptor()
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}
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