/
publish.go
120 lines (99 loc) · 3.36 KB
/
publish.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
/*
Copyright 2022-2023 The Nephio Authors.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package edgewatcher
import (
"context"
"fmt"
"reflect"
"github.com/nephio-project/edge-watcher/preprocessor"
"golang.org/x/sync/errgroup"
)
func (router *Router) getSubscribers(key EventOptions) (
subscribers subscriberSet, exists bool) {
valIntf, ok := router.subscribers.Load(key)
if !ok {
return nil, false
}
val, ok := valIntf.(subscriberSet)
if !ok {
panic(fmt.Errorf("unknown value of type: %v found in Router.subscriber",
reflect.TypeOf(valIntf)))
}
return val, true
}
func (router *Router) publishEvent(ctx context.Context, e preprocessor.Event) error {
logger := router.log.WithName("publishEvent").WithValues("ObjectKey", e.Key)
debugLogger := logger.V(1)
clusterSubscriberOption := EventOptions{
Type: ClusterSubscriber,
SubscriptionName: e.Key.ClusterName,
}
nfDeploySubscriberOption := EventOptions{
Type: NfDeploySubscriber,
SubscriptionName: e.Key.NFDeploy,
}
clusterStreams, clusterSubscribers := router.getSubscribers(clusterSubscriberOption)
group, groupCtx := errgroup.WithContext(ctx)
if clusterSubscribers {
debugLogger.Info("send to cluster subscribers", "event", e, "options", clusterSubscriberOption)
for _, stream := range clusterStreams {
stream := stream
group.Go(func() error {
debugLogger.Info("sending to cluster subscriber", "event", e, "subscriberId", stream.SubscriberName)
select {
case <-stream.stop:
debugLogger.Info("subscription cancelled", "subscriberId", stream.SubscriberName)
return nil
case <-groupCtx.Done():
return groupCtx.Err()
case <-router.Ctx.Done():
return router.Ctx.Err()
case stream.Channel <- e:
debugLogger.Info("sent", "event", e, "subscriberId", stream.SubscriberName)
return nil
}
})
}
}
nfDeployStreams, nfDeploySubscribers := router.getSubscribers(nfDeploySubscriberOption)
if nfDeploySubscribers {
debugLogger.Info("send to nfdeploy subscribers", "event", e, "options", nfDeploySubscriberOption)
for _, stream := range nfDeployStreams {
stream := stream
group.Go(func() error {
debugLogger.Info("sending to nfdeploy subscriber", "event", e,
"subscriberId", stream.SubscriberName)
select {
case <-stream.stop:
debugLogger.Info("subscription cancelled", "subscriberId", stream.SubscriberName)
return nil
case <-groupCtx.Done():
return groupCtx.Err()
case <-router.Ctx.Done():
return router.Ctx.Err()
case stream.Channel <- e:
debugLogger.Info("sent", "event", e, "subscriberId", stream.SubscriberName)
return nil
}
})
}
}
if err := group.Wait(); err != nil {
logger.Error(err, "error in publishing the event", "event", e)
return err
}
if !clusterSubscribers && !nfDeploySubscribers {
return fmt.Errorf("no subscribers found for the event: %v", e)
}
return nil
}