-
Notifications
You must be signed in to change notification settings - Fork 907
/
cluster.go
55 lines (47 loc) · 1.66 KB
/
cluster.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
/*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You 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 adaptivesvc
import (
"sync"
)
import (
clusterpkg "dubbo.apache.org/dubbo-go/v3/cluster/cluster"
"dubbo.apache.org/dubbo-go/v3/cluster/directory"
"dubbo.apache.org/dubbo-go/v3/common/constant"
"dubbo.apache.org/dubbo-go/v3/common/extension"
"dubbo.apache.org/dubbo-go/v3/protocol"
)
var (
once sync.Once
instance clusterpkg.Cluster
)
func init() {
extension.SetCluster(constant.ClusterKeyAdaptiveService, newAdaptiveServiceCluster)
}
// adaptiveServiceCluster is a cluster for adaptive service.
type adaptiveServiceCluster struct{}
func newAdaptiveServiceCluster() clusterpkg.Cluster {
if instance == nil {
once.Do(func() {
instance = &adaptiveServiceCluster{}
})
}
return instance
}
func (c *adaptiveServiceCluster) Join(directory directory.Directory) protocol.Invoker {
return clusterpkg.BuildInterceptorChain(newAdaptiveServiceClusterInvoker(directory))
}