micro/meter/wrapper/wrapper.go

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// +build ignore
package wrapper
import (
"context"
"fmt"
"time"
"github.com/unistack-org/micro/v3/client"
"github.com/unistack-org/micro/v3/meter"
"github.com/unistack-org/micro/v3/server"
)
type Options struct {
Meter meter.Meter
Name string
Version string
ID string
}
type Option func(*Options)
func ServiceName(name string) Option {
return func(o *Options) {
o.Name = name
}
}
func ServiceVersion(version string) Option {
return func(o *Options) {
o.Version = version
}
}
func ServiceID(id string) Option {
return func(o *Options) {
o.ID = id
}
}
func Meter(m meter.Meter) Option {
return func(o *Options) {
o.Meter = m
}
}
type wrapper struct {
options Options
callFunc client.CallFunc
client.Client
}
func NewClientWrapper(opts ...Option) client.Wrapper {
return func(c client.Client) client.Client {
handler := &wrapper{
labels: labels,
Client: c,
}
return handler
}
}
func NewCallWrapper(opts ...Option) client.CallWrapper {
labels := getLabels(opts...)
return func(fn client.CallFunc) client.CallFunc {
handler := &wrapper{
labels: labels,
callFunc: fn,
}
return handler.CallFunc
}
}
func (w *wrapper) CallFunc(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error {
endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
timeCounterSummary := metrics.GetOrCreateSummary(getName("client_request_latency_microseconds", wlabels))
timeCounterHistogram := metrics.GetOrCreateSummary(getName("client_request_duration_seconds", wlabels))
ts := time.Now()
err := w.callFunc(ctx, addr, req, rsp, opts)
te := time.Since(ts)
timeCounterSummary.Update(float64(te.Seconds()))
timeCounterHistogram.Update(te.Seconds())
if err == nil {
metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
} else {
metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
}
return err
}
func (w *wrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error {
endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
timeCounterSummary := metrics.GetOrCreateSummary(getName("client_request_latency_microseconds", wlabels))
timeCounterHistogram := metrics.GetOrCreateSummary(getName("client_request_duration_seconds", wlabels))
ts := time.Now()
err := w.Client.Call(ctx, req, rsp, opts...)
te := time.Since(ts)
timeCounterSummary.Update(float64(te.Seconds()))
timeCounterHistogram.Update(te.Seconds())
if err == nil {
metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
} else {
metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
}
return err
}
func (w *wrapper) Stream(ctx context.Context, req client.Request, opts ...client.CallOption) (client.Stream, error) {
endpoint := fmt.Sprintf("%s.%s", req.Service(), req.Endpoint())
wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
timeCounterSummary := metrics.GetOrCreateSummary(getName("client_request_latency_microseconds", wlabels))
timeCounterHistogram := metrics.GetOrCreateSummary(getName("client_request_duration_seconds", wlabels))
ts := time.Now()
stream, err := w.Client.Stream(ctx, req, opts...)
te := time.Since(ts)
timeCounterSummary.Update(float64(te.Seconds()))
timeCounterHistogram.Update(te.Seconds())
if err == nil {
metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
} else {
metrics.GetOrCreateCounter(getName("client_request_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
}
return stream, err
}
func (w *wrapper) Publish(ctx context.Context, p client.Message, opts ...client.PublishOption) error {
endpoint := p.Topic()
wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
timeCounterSummary := metrics.GetOrCreateSummary(getName("publish_message_latency_microseconds", wlabels))
timeCounterHistogram := metrics.GetOrCreateSummary(getName("publish_message_duration_seconds", wlabels))
ts := time.Now()
err := w.Client.Publish(ctx, p, opts...)
te := time.Since(ts)
timeCounterSummary.Update(float64(te.Seconds()))
timeCounterHistogram.Update(te.Seconds())
if err == nil {
metrics.GetOrCreateCounter(getName("publish_message_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
} else {
metrics.GetOrCreateCounter(getName("publish_message_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
}
return err
}
func NewHandlerWrapper(opts ...Option) server.HandlerWrapper {
labels := getLabels(opts...)
handler := &wrapper{
labels: labels,
}
return handler.HandlerFunc
}
func (w *wrapper) HandlerFunc(fn server.HandlerFunc) server.HandlerFunc {
return func(ctx context.Context, req server.Request, rsp interface{}) error {
endpoint := req.Endpoint()
wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
timeCounterSummary := metrics.GetOrCreateSummary(getName("server_request_latency_microseconds", wlabels))
timeCounterHistogram := metrics.GetOrCreateSummary(getName("server_request_duration_seconds", wlabels))
ts := time.Now()
err := fn(ctx, req, rsp)
te := time.Since(ts)
timeCounterSummary.Update(float64(te.Seconds()))
timeCounterHistogram.Update(te.Seconds())
if err == nil {
metrics.GetOrCreateCounter(getName("server_request_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
} else {
metrics.GetOrCreateCounter(getName("server_request_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
}
return err
}
}
func NewSubscriberWrapper(opts ...Option) server.SubscriberWrapper {
labels := getLabels(opts...)
handler := &wrapper{
labels: labels,
}
return handler.SubscriberFunc
}
func (w *wrapper) SubscriberFunc(fn server.SubscriberFunc) server.SubscriberFunc {
return func(ctx context.Context, msg server.Message) error {
endpoint := msg.Topic()
wlabels := append(w.labels, fmt.Sprintf(`%sendpoint="%s"`, DefaultLabelPrefix, endpoint))
timeCounterSummary := metrics.GetOrCreateSummary(getName("subscribe_message_latency_microseconds", wlabels))
timeCounterHistogram := metrics.GetOrCreateSummary(getName("subscribe_message_duration_seconds", wlabels))
ts := time.Now()
err := fn(ctx, msg)
te := time.Since(ts)
timeCounterSummary.Update(float64(te.Seconds()))
timeCounterHistogram.Update(te.Seconds())
if err == nil {
metrics.GetOrCreateCounter(getName("subscribe_message_total", append(wlabels, fmt.Sprintf(`%sstatus="success"`, DefaultLabelPrefix)))).Inc()
} else {
metrics.GetOrCreateCounter(getName("subscribe_message_total", append(wlabels, fmt.Sprintf(`%sstatus="failure"`, DefaultLabelPrefix)))).Inc()
}
return err
}
}