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influxcfg.go
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influxcfg.go
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package config
import "fmt"
/***************************
Influx DB backends
-GetInfluxCfgCfgByID(struct)
-GetInfluxCfgMap (map - for interna config use
-GetInfluxCfgArray(Array - for web ui use )
-AddInfluxCfg
-DelInfluxCfg
-UpdateInfluxCfg
-GetInfluxCfgAffectOnDel
***********************************/
/*GetInfluxCfgByID get device data by id*/
func (dbc *DatabaseCfg) GetInfluxCfgByID(id string) (InfluxCfg, error) {
cfgarray, err := dbc.GetInfluxCfgArray("id='" + id + "'")
if err != nil {
return InfluxCfg{}, err
}
if len(cfgarray) > 1 {
return InfluxCfg{}, fmt.Errorf("Error %d results on get SnmpDeviceCfg by id %s", len(cfgarray), id)
}
if len(cfgarray) == 0 {
return InfluxCfg{}, fmt.Errorf("Error no values have been returned with this id %s in the influx config table", id)
}
return *cfgarray[0], nil
}
/*GetInfluxCfgMap return data in map format*/
func (dbc *DatabaseCfg) GetInfluxCfgMap(filter string) (map[string]*InfluxCfg, error) {
cfgarray, err := dbc.GetInfluxCfgArray(filter)
cfgmap := make(map[string]*InfluxCfg)
for _, val := range cfgarray {
cfgmap[val.ID] = val
log.Debugf("%+v", *val)
}
return cfgmap, err
}
/*GetInfluxCfgArray generate an array of devices with all its information */
func (dbc *DatabaseCfg) GetInfluxCfgArray(filter string) ([]*InfluxCfg, error) {
var err error
var devices []*InfluxCfg
// Get Only data for selected devices
if len(filter) > 0 {
if err = dbc.x.Where(filter).Find(&devices); err != nil {
log.Warnf("Fail to get InfluxCfg data filteter with %s : %v\n", filter, err)
return nil, err
}
} else {
if err = dbc.x.Find(&devices); err != nil {
log.Warnf("Fail to get influxcfg data: %v\n", err)
return nil, err
}
}
return devices, nil
}
/*AddInfluxCfg for adding new devices*/
func (dbc *DatabaseCfg) AddInfluxCfg(dev InfluxCfg) (int64, error) {
var err error
var affected int64
session := dbc.x.NewSession()
if err := session.Begin(); err != nil {
// if returned then will rollback automatically
return 0, err
}
defer session.Close()
affected, err = session.Insert(dev)
if err != nil {
session.Rollback()
return 0, err
}
// no other relation
err = session.Commit()
if err != nil {
return 0, err
}
log.Infof("Added new influx backend Successfully with id %s ", dev.ID)
dbc.addChanges(affected)
return affected, nil
}
/*DelInfluxCfg for deleting influx databases from ID*/
func (dbc *DatabaseCfg) DelInfluxCfg(id string) (int64, error) {
var affecteddev, affected int64
var err error
session := dbc.x.NewSession()
if err := session.Begin(); err != nil {
// if returned then will rollback automatically
return 0, err
}
defer session.Close()
// deleting references in SnmpDevCfg
affecteddev, err = session.Where("outdb='" + id + "'").Cols("outdb").Update(&SnmpDeviceCfg{})
if err != nil {
session.Rollback()
return 0, fmt.Errorf("Error on Delete Device with id on delete SnmpDevCfg with id: %s, error: %s", id, err)
}
affected, err = session.Where("id='" + id + "'").Delete(&InfluxCfg{})
if err != nil {
session.Rollback()
return 0, err
}
err = session.Commit()
if err != nil {
return 0, err
}
log.Infof("Deleted Successfully influx db with ID %s [ %d Devices Affected ]", id, affecteddev)
dbc.addChanges(affected + affecteddev)
return affected, nil
}
/*UpdateInfluxCfg for adding new influxdb*/
func (dbc *DatabaseCfg) UpdateInfluxCfg(id string, dev InfluxCfg) (int64, error) {
var affecteddev, affected int64
var err error
session := dbc.x.NewSession()
if err := session.Begin(); err != nil {
// if returned then will rollback automatically
return 0, err
}
defer session.Close()
if id != dev.ID { // ID has been changed
affecteddev, err = session.Where("outdb='" + id + "'").Cols("outdb").Update(&SnmpDeviceCfg{OutDB: dev.ID})
if err != nil {
session.Rollback()
return 0, fmt.Errorf("Error on Update InfluxConfig on update id(old) %s with (new): %s, error: %s", id, dev.ID, err)
}
log.Infof("Updated Influx Config to %d devices ", affecteddev)
}
affected, err = session.Where("id='" + id + "'").UseBool().AllCols().Update(dev)
if err != nil {
session.Rollback()
return 0, err
}
err = session.Commit()
if err != nil {
return 0, err
}
log.Infof("Updated Influx Config Successfully with id %s and data:%+v, affected", id, dev)
dbc.addChanges(affected + affecteddev)
return affected, nil
}
/*GetInfluxCfgAffectOnDel for deleting devices from ID*/
func (dbc *DatabaseCfg) GetInfluxCfgAffectOnDel(id string) ([]*DbObjAction, error) {
var devices []*SnmpDeviceCfg
var obj []*DbObjAction
if err := dbc.x.Where("outdb='" + id + "'").Find(&devices); err != nil {
log.Warnf("Error on Get Outout db id %s for devices , error: %s", id, err)
return nil, err
}
for _, val := range devices {
obj = append(obj, &DbObjAction{
Type: "snmpdevicecfg",
TypeDesc: "SNMP Devices",
ObID: val.ID,
Action: "Reset InfluxDB Server from SNMPDevice to 'default' InfluxDB Server",
})
}
return obj, nil
}