1// Copyright 2016 Michal Witkowski. All Rights Reserved.
2// See LICENSE for licensing terms.
3
4package grpc_prometheus
5
6import (
7	"time"
8
9	"google.golang.org/grpc/codes"
10)
11
12type serverReporter struct {
13	metrics     *ServerMetrics
14	rpcType     grpcType
15	serviceName string
16	methodName  string
17	startTime   time.Time
18}
19
20func newServerReporter(m *ServerMetrics, rpcType grpcType, fullMethod string) *serverReporter {
21	r := &serverReporter{
22		metrics: m,
23		rpcType: rpcType,
24	}
25	if r.metrics.serverHandledHistogramEnabled {
26		r.startTime = time.Now()
27	}
28	r.serviceName, r.methodName = splitMethodName(fullMethod)
29	r.metrics.serverStartedCounter.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
30	return r
31}
32
33func (r *serverReporter) ReceivedMessage() {
34	r.metrics.serverStreamMsgReceived.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
35}
36
37func (r *serverReporter) SentMessage() {
38	r.metrics.serverStreamMsgSent.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Inc()
39}
40
41func (r *serverReporter) Handled(code codes.Code) {
42	r.metrics.serverHandledCounter.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName, code.String()).Inc()
43	if r.metrics.serverHandledHistogramEnabled {
44		r.metrics.serverHandledHistogram.WithLabelValues(string(r.rpcType), r.serviceName, r.methodName).Observe(time.Since(r.startTime).Seconds())
45	}
46}
47