PKGBUILD/pkg/logfile/json.go

97 lines
2.1 KiB
Go

package logfile
import (
"encoding/json"
"fmt"
"os"
"github.com/go-flucky/flucky/pkg/types"
)
type jsonLogfile struct {
logfile string
}
func (jl *jsonLogfile) GetLogfile() string {
return jl.logfile
}
func (jl *jsonLogfile) ReadHumidities() ([]*types.Humidity, error) {
if _, err := os.Stat(jl.logfile); os.IsNotExist(err) {
return nil, fmt.Errorf("%v: %v", ErrLogfileNotFound, jl.logfile)
}
humidities := make([]*types.Humidity, 0)
f, err := os.Open(jl.logfile)
if err != nil {
return nil, fmt.Errorf("%v: %v", ErrLogfileOpen, jl.logfile)
}
defer f.Close()
jsonDecoder := json.NewDecoder(f)
err = jsonDecoder.Decode(&humidities)
if err != nil {
return nil, fmt.Errorf("%v: %v", ErrLogfileDecode, err)
}
return humidities, nil
}
func (jl *jsonLogfile) ReadTemperatures() ([]*types.Temperature, error) {
if _, err := os.Stat(jl.logfile); os.IsNotExist(err) {
return nil, fmt.Errorf("%v: %v", ErrLogfileNotFound, jl.logfile)
}
temperatures := make([]*types.Temperature, 0)
f, err := os.Open(jl.logfile)
if err != nil {
return nil, fmt.Errorf("%v: %v", ErrLogfileOpen, jl.logfile)
}
defer f.Close()
jsonDecoder := json.NewDecoder(f)
err = jsonDecoder.Decode(&temperatures)
if err != nil {
return nil, fmt.Errorf("%v: %v", ErrLogfileDecode, err)
}
return temperatures, nil
}
func (jl *jsonLogfile) WriteHumidities(humidities []*types.Humidity) error {
f, err := os.Create(jl.logfile)
if err != nil {
return fmt.Errorf("%v: %v", ErrLogileCreate, jl.logfile)
}
defer f.Close()
jsonEncoder := json.NewEncoder(f)
jsonEncoder.SetIndent("", " ")
err = jsonEncoder.Encode(humidities)
if err != nil {
return fmt.Errorf("%v: %v", ErrLogfileEncode, err)
}
return nil
}
func (jl *jsonLogfile) WriteTemperatures(temperatures []*types.Temperature) error {
f, err := os.Create(jl.logfile)
if err != nil {
return fmt.Errorf("%v: %v", ErrLogileCreate, jl.logfile)
}
defer f.Close()
writeCreationDate(temperatures)
jsonEncoder := json.NewEncoder(f)
jsonEncoder.SetIndent("", " ")
err = jsonEncoder.Encode(temperatures)
if err != nil {
return fmt.Errorf("%v: %v", ErrLogfileEncode, err)
}
return nil
}