overflow_probes/service/SensorConfigService.go
crusader a3ad29ff73 ing
2018-03-27 00:14:19 +09:00

143 lines
2.8 KiB
Go

package service
import (
"context"
"encoding/json"
"fmt"
"io/ioutil"
"os"
"path"
"reflect"
cda "git.loafle.net/commons_go/di/annotation"
cdr "git.loafle.net/commons_go/di/registry"
oocmci "git.loafle.net/overflow/overflow_commons_go/modules/commons/interfaces"
sensorConfigM "git.loafle.net/overflow/overflow_commons_go/modules/sensor_config/model"
"git.loafle.net/overflow/overflow_probes/config"
)
func init() {
cdr.RegisterType(reflect.TypeOf((*SensorConfigService)(nil)))
}
type SensorConfigService struct {
cda.TypeAnnotation `annotation:"@overFlow:Service()"`
oocmci.Service
sensorConfigs map[string]*sensorConfigM.SensorConfig
}
func (scs *SensorConfigService) Start() error {
var (
err error
)
scs.sensorConfigs = make(map[string]*sensorConfigM.SensorConfig)
if err = scs.loadConfigAll(); nil != err {
return err
}
return nil
}
func (scs *SensorConfigService) Stop(ctx context.Context) error {
return nil
}
func (scs *SensorConfigService) loadConfigAll() error {
configDirPath := config.ConfigDirPath()
files, err := ioutil.ReadDir(configDirPath)
if nil != err {
return err
}
for _, file := range files {
if file.IsDir() == true {
if err := scs.loadConfigDir(path.Join(configDirPath, file.Name())); nil != err {
return err
}
}
}
return nil
}
func (scs *SensorConfigService) loadConfigDir(dirPath string) error {
files, err := ioutil.ReadDir(dirPath)
if nil != err {
return err
}
for _, file := range files {
filePath := path.Join(dirPath, file.Name())
if file.IsDir() == true {
if err := scs.loadConfigDir(filePath); nil != err {
return err
}
} else {
sc, _, err := scs.loadConfigFile(filePath)
if nil != err {
return err
}
scs.sensorConfigs[file.Name()] = sc
}
}
return nil
}
func (scs *SensorConfigService) loadConfigFile(filePath string) (*sensorConfigM.SensorConfig, []byte, error) {
buf, err := ioutil.ReadFile(filePath)
if nil != err {
return nil, nil, err
}
var m = &sensorConfigM.SensorConfig{}
if err := json.Unmarshal(buf, m); nil != err {
return nil, nil, err
}
return m, buf, nil
}
func (scs *SensorConfigService) AddConfig(tempFilePath string) error {
sc, buf, err := scs.loadConfigFile(tempFilePath)
if nil != err {
return err
}
targetPath := config.SensorConfigFilePath(sc)
ioutil.WriteFile(targetPath, buf, 0644)
// tempfile remove
err = os.Remove(tempFilePath)
if nil != err {
return err
}
scs.sensorConfigs[sc.ID.String()] = sc
return nil
}
func (scs *SensorConfigService) RemoveConfig(sensorConfigID string) error {
sc, ok := scs.sensorConfigs[sensorConfigID]
if !ok {
return fmt.Errorf("Probe: SensorConfig[%s] is not exist", sensorConfigID)
}
targetPath := config.SensorConfigFilePath(sc)
err := os.Remove(targetPath)
if nil != err {
return err
}
delete(scs.sensorConfigs, sensorConfigID)
return nil
}