Files
cloudpods/pkg/monitor/models/alertresourcedrivers.go
2020-10-19 22:05:39 +08:00

72 lines
2.2 KiB
Go

// Copyright 2019 Yunion
//
// 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 models
import (
"yunion.io/x/pkg/errors"
"yunion.io/x/onecloud/pkg/apis/monitor"
)
const (
ErrAlertResourceDriverNotFound = errors.Error("Alert resource driver not found")
ErrAlertResourceDriverDuplicateMatch = errors.Error("Alert resource driver duplicate match")
)
var (
alertResourceDriverFs = make(map[monitor.AlertResourceType]IAlertResourceDriverFactory, 0)
)
type IAlertResourceDriverFactory interface {
// GetType return the driver type
GetType() monitor.AlertResourceType
// IsEvalMatched match driver by monitor.EvalMatch
IsEvalMatched(input monitor.EvalMatch) bool
GetDriver(input monitor.EvalMatch) IAlertResourceDriver
}
type IAlertResourceDriver interface {
// GetType return the driver type
GetType() monitor.AlertResourceType
// GetUniqCond get uniq match conditions from eval match to find AlertResource
GetUniqCond() *AlertResourceUniqCond
}
func RegisterAlertResourceDriverFactory(drvs ...IAlertResourceDriverFactory) {
for _, drv := range drvs {
alertResourceDriverFs[drv.GetType()] = drv
}
}
func GetAlertResourceDriver(match monitor.EvalMatch) (IAlertResourceDriver, error) {
var matchedType monitor.AlertResourceType
matchedDrvs := make(map[monitor.AlertResourceType]IAlertResourceDriverFactory)
for _, drv := range alertResourceDriverFs {
if ok := drv.IsEvalMatched(match); ok {
matchedDrvs[drv.GetType()] = drv
matchedType = drv.GetType()
}
}
if len(matchedDrvs) == 0 {
return nil, errors.Wrapf(ErrAlertResourceDriverNotFound, "match by %v", match)
}
if len(matchedDrvs) > 1 {
return nil, errors.Wrapf(ErrAlertResourceDriverDuplicateMatch, "match by %v", match)
}
return matchedDrvs[matchedType].GetDriver(match), nil
}