fix(logfile): Add pkg to operate with logfiles
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a8aa7a14c5
commit
5666830030
@ -30,9 +30,11 @@ var rootCmd = &cobra.Command{
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cnf := config.Configuration{
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Device: &types.Device{
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DeviceID: uuid.NewV4().String(),
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DeviceName: hostname,
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CreationDate: time.Now(),
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DeviceID: uuid.NewV4().String(),
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DeviceName: hostname,
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HumidityLogfile: "/var/log/flucky/humidity.json",
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TemperatureLogfile: "/var/log/flucky/temperature.json",
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CreationDate: time.Now(),
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},
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}
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@ -8,6 +8,7 @@ import (
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"github.com/spf13/cobra"
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"github.com/volker-raschek/flucky/pkg/cli"
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"github.com/volker-raschek/flucky/pkg/config"
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"github.com/volker-raschek/flucky/pkg/logfile"
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"github.com/volker-raschek/flucky/pkg/sensor"
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)
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@ -36,6 +37,13 @@ var readTemperatureCmd = &cobra.Command{
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// print temperatures on stdout
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cli.PrintTemperatures(temperatures, cnf, os.Stdout)
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if logs {
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err := logfile.WriteTemperatures(cnf.Device.TemperatureLogfile, temperatures)
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if err != nil {
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log.Fatalln(err)
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}
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}
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},
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}
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107
pkg/logfile/logfile.go
Normal file
107
pkg/logfile/logfile.go
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@ -0,0 +1,107 @@
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package logfile
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import (
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"encoding/json"
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"fmt"
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"io"
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"os"
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"path/filepath"
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"github.com/volker-raschek/flucky/pkg/types"
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)
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// Define the entry size for each logfile
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var humiditySplitBy = 10000
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var templeratureSplitBy = 10000
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func WriteTemperatures(temperatureLogfile string, temperatures []*types.Temperature) error {
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allTemperatures := make([]*types.Temperature, 0)
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if _, err := os.Stat(temperatureLogfile); os.IsNotExist(err) {
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err := os.MkdirAll(filepath.Dir(temperatureLogfile), 0755)
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if err != nil {
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return fmt.Errorf("Can not create directory %v to write temperatures into the logfile", filepath.Dir(temperatureLogfile))
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}
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f, err := os.Create(temperatureLogfile)
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if err != nil {
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return fmt.Errorf("Can not create file %v: %v", temperatureLogfile, err)
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}
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defer f.Close()
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} else {
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f, err := os.Open(temperatureLogfile)
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if err != nil {
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return fmt.Errorf("Can not open file %v: %v", temperatureLogfile, err)
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}
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defer f.Close()
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savedTemperatures, err := ReadTemperaturesCustom(f)
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if err != nil {
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return fmt.Errorf("Can not read temperatures from logfile %v: %v", temperatureLogfile, err)
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}
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allTemperatures = append(allTemperatures, savedTemperatures...)
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}
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f, err := os.Create(temperatureLogfile)
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if err != nil {
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return fmt.Errorf("Can not create file %v: %v", temperatureLogfile, err)
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}
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defer f.Close()
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allTemperatures = append(allTemperatures, temperatures...)
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err = WriteTemperaturesCustom(f, allTemperatures)
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if err != nil {
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return fmt.Errorf("Can not write temperatures to logfile %v: %v", temperatureLogfile, err)
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}
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return nil
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}
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func WriteTemperaturesCustom(w io.Writer, temperatures []*types.Temperature) error {
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jsonEncoder := json.NewEncoder(w)
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jsonEncoder.SetIndent("", " ")
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err := jsonEncoder.Encode(temperatures)
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if err != nil {
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return fmt.Errorf("Can not encode temperatures: %v", err)
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}
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return nil
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}
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func ReadTemperatures(temperatureLogfile string) ([]*types.Temperature, error) {
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if _, err := os.Stat(temperatureLogfile); os.IsNotExist(err) {
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return nil, fmt.Errorf("Can not find temperature logfile %v", temperatureLogfile)
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}
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temperatures := make([]*types.Temperature, 0)
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f, err := os.Open(temperatureLogfile)
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if err != nil {
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return nil, fmt.Errorf("Can not open temperature logfile %v", temperatureLogfile)
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}
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defer f.Close()
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temperatures, err = ReadTemperaturesCustom(f)
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if err != nil {
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return nil, fmt.Errorf("Can not read temperatures from logfile %v", temperatureLogfile)
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}
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return temperatures, nil
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}
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func ReadTemperaturesCustom(r io.Reader) ([]*types.Temperature, error) {
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temperatures := make([]*types.Temperature, 0)
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decoder := json.NewDecoder(r)
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err := decoder.Decode(&temperatures)
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if err != nil {
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return nil, fmt.Errorf("Can not decode temperatures from reader: %v", err)
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}
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return temperatures, nil
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}
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@ -4,9 +4,11 @@ import "time"
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// Device ...
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type Device struct {
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DeviceID string `json:"device_id"`
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DeviceName string `json:"device_name"`
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DeviceLocation *string `json:"device_location"`
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DeviceLastContact time.Time `json:"device_last_contact"`
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CreationDate time.Time `json:"creation_date"`
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DeviceID string `json:"device_id"`
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DeviceName string `json:"device_name"`
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DeviceLocation *string `json:"device_location"`
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DeviceLastContact time.Time `json:"device_last_contact"`
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HumidityLogfile string `json:"humidity_logfile"`
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TemperatureLogfile string `json:"temperature_logfile"`
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CreationDate time.Time `json:"creation_date"`
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}
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