mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-12-05 20:50:24 +00:00
71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
|
/*
|
||
|
Copyright 2017 The Kubernetes 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 audit
|
||
|
|
||
|
import (
|
||
|
"fmt"
|
||
|
"strings"
|
||
|
|
||
|
"k8s.io/apimachinery/pkg/util/errors"
|
||
|
auditinternal "k8s.io/apiserver/pkg/apis/audit"
|
||
|
)
|
||
|
|
||
|
// Union returns an audit Backend which logs events to a set of backends. The returned
|
||
|
// Sink implementation blocks in turn for each call to ProcessEvents.
|
||
|
func Union(backends ...Backend) Backend {
|
||
|
if len(backends) == 1 {
|
||
|
return backends[0]
|
||
|
}
|
||
|
return union{backends}
|
||
|
}
|
||
|
|
||
|
type union struct {
|
||
|
backends []Backend
|
||
|
}
|
||
|
|
||
|
func (u union) ProcessEvents(events ...*auditinternal.Event) bool {
|
||
|
success := true
|
||
|
for _, backend := range u.backends {
|
||
|
success = backend.ProcessEvents(events...) && success
|
||
|
}
|
||
|
return success
|
||
|
}
|
||
|
|
||
|
func (u union) Run(stopCh <-chan struct{}) error {
|
||
|
var funcs []func() error
|
||
|
for _, backend := range u.backends {
|
||
|
funcs = append(funcs, func() error {
|
||
|
return backend.Run(stopCh)
|
||
|
})
|
||
|
}
|
||
|
return errors.AggregateGoroutines(funcs...)
|
||
|
}
|
||
|
|
||
|
func (u union) Shutdown() {
|
||
|
for _, backend := range u.backends {
|
||
|
backend.Shutdown()
|
||
|
}
|
||
|
}
|
||
|
|
||
|
func (u union) String() string {
|
||
|
var backendStrings []string
|
||
|
for _, backend := range u.backends {
|
||
|
backendStrings = append(backendStrings, fmt.Sprintf("%s", backend))
|
||
|
}
|
||
|
return fmt.Sprintf("union[%s]", strings.Join(backendStrings, ","))
|
||
|
}
|