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fix(pkg/logfile): read and write logfiles from json with measured value interface

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This commit is contained in:
Markus Pesch
2019-06-26 23:16:26 +02:00
parent 003fe8ab9e
commit 072a902376
5 changed files with 145 additions and 131 deletions
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2
pkg/daemon/daemon.go
View File

@@ -33,7 +33,7 @@ func Start(cnf *config.Configuration, cleanCacheInterval time.Duration, compress
ctx := context.Background()
childContext, cancel := context.WithCancel(ctx)
logfile := logfile.New(cnf)
logfile := logfile.New(cnf.Device.TemperatureLogfile)
measuredValuesCache := make([]types.MeasuredValue, 0)

238
pkg/logfile/json.go
View File

@@ -3,19 +3,18 @@ package logfile
import (
"encoding/json"
"fmt"
"io/ioutil"
"log"
"os"
"sync"
"github.com/go-flucky/flucky/pkg/internal/collect"
"github.com/go-flucky/flucky/pkg/internal/prittyprint"
"github.com/go-flucky/flucky/pkg/config"
"path/filepath"
"strconv"
"time"
"github.com/go-flucky/flucky/pkg/types"
)
type jsonLogfile struct {
cnf *config.Configuration
logfile string
}
func (jl *jsonLogfile) Append(compression bool, measuredValues []types.MeasuredValue) error {
@@ -38,151 +37,166 @@ func (jl *jsonLogfile) Append(compression bool, measuredValues []types.MeasuredV
func (jl *jsonLogfile) Read() ([]types.MeasuredValue, error) {
if _, err := os.Stat(jl.logfile); os.IsNotExist(err) {
return nil, fmt.Errorf("%v: %v", errorLogfileNotFound, jl.logfile)
}
unmarshaledMeasuredValues := make([]interface{}, 0)
bytes, err := ioutil.ReadFile(jl.logfile)
if err != nil {
return nil, fmt.Errorf("%v %v: %v", errorLogfileRead, jl.logfile, err)
}
err = json.Unmarshal(bytes, &unmarshaledMeasuredValues)
if err != nil {
return nil, fmt.Errorf("%v %v: %v", errorLogfileUnmarshal, jl.logfile, err)
}
measuredValues := make([]types.MeasuredValue, 0)
humidityValues, err := jl.readHumidities()
if err != nil {
return nil, err
}
measuredValues = append(measuredValues, humidityValues...)
for _, unmarshaledMeasuredValue := range unmarshaledMeasuredValues {
mappedMeasuredValue, ok := unmarshaledMeasuredValue.(map[string]interface{})
if !ok {
log.Println("Can not parse into map")
continue
}
if _, ok := mappedMeasuredValue["temperature_id"]; ok {
temperature, err := jl.transformTemperature(mappedMeasuredValue)
if err != nil {
log.Printf("Can not unmarshal temperature from map: %v", err)
continue
}
measuredValues = append(measuredValues, temperature)
}
if _, ok := mappedMeasuredValue["humidity_id"]; ok {
humidity, err := jl.transformHumidity(mappedMeasuredValue)
if err != nil {
log.Printf("Can not unmarshal humidity from map: %v", err)
continue
}
measuredValues = append(measuredValues, humidity)
}
temperatureValues, err := jl.readTemperatures()
if err != nil {
return nil, err
}
measuredValues = append(measuredValues, temperatureValues...)
return measuredValues, nil
}
func (jl *jsonLogfile) readHumidities() ([]types.MeasuredValue, error) {
func (jl *jsonLogfile) transformHumidity(mappedMeasuredValue map[string]interface{}) (types.MeasuredValue, error) {
if _, err := os.Stat(jl.cnf.Device.HumidityLogfile); os.IsNotExist(err) {
return nil, fmt.Errorf("%v: %v", errorLogfileNotFound, jl.cnf.Device.HumidityLogfile)
humidity := &types.Humidity{
HumidityID: mappedMeasuredValue["humidity_id"].(string),
SensorID: mappedMeasuredValue["sensor_id"].(string),
CreationDate: nil,
UpdateDate: nil,
}
humidities := make([]*types.Humidity, 0)
f, err := os.Open(jl.cnf.Device.HumidityLogfile)
humidityValue, err := strconv.ParseFloat(mappedMeasuredValue["humidity_value"].(string), 64)
if err != nil {
return nil, fmt.Errorf("%v: %v", errorLogfileOpen, jl.cnf.Device.HumidityLogfile)
return nil, fmt.Errorf("%v for humidity value. HumidityID %v: %v", errorParseFloat, mappedMeasuredValue["humidity_id"].(string), err)
}
defer f.Close()
humidity.HumidityValue = humidityValue
if err = json.NewDecoder(f).Decode(&humidities); err != nil {
return nil, fmt.Errorf("%v: %v", errorLogfileDecode, err)
humidityFromDate, err := time.Parse(timeFormat, mappedMeasuredValue["humidity_from_date"].(string))
if err != nil {
return nil, fmt.Errorf("%v for humidity from date. HumidityID %v: %v", errorParseTime, mappedMeasuredValue["humidity_id"].(string), err)
}
humidity.HumidityFromDate = humidityFromDate
humidityTillDate, err := time.Parse(timeFormat, mappedMeasuredValue["humidity_till_date"].(string))
if err != nil {
return nil, fmt.Errorf("%v for humidity till date. HumidityID %v: %v", errorParseTime, mappedMeasuredValue["humidity_id"].(string), err)
}
humidity.HumidityTillDate = humidityTillDate
if mappedMeasuredValue["creation_date"] != nil {
creationDate, err := time.Parse(timeFormat, mappedMeasuredValue["creation_date"].(string))
if err != nil {
return nil, fmt.Errorf("%v for creation date. HumidityID %v: %v", errorParseTime, mappedMeasuredValue["humidity_id"].(string), err)
}
humidity.CreationDate = &creationDate
}
measuredValues := make([]types.MeasuredValue, 0)
for _, humidity := range humidities {
measuredValues = append(measuredValues, humidity)
if mappedMeasuredValue["update_date"] != nil {
updateDate, err := time.Parse(timeFormat, mappedMeasuredValue["update_date"].(string))
if err != nil {
return nil, fmt.Errorf("%v for update date. HumidityID %v: %v", errorParseTime, mappedMeasuredValue["humidity_id"].(string), err)
}
humidity.UpdateDate = &updateDate
}
return measuredValues, nil
return humidity, nil
}
func (jl *jsonLogfile) readTemperatures() ([]types.MeasuredValue, error) {
if _, err := os.Stat(jl.cnf.Device.TemperatureLogfile); os.IsNotExist(err) {
return nil, fmt.Errorf("%v: %v", errorLogfileNotFound, jl.cnf.Device.TemperatureLogfile)
func (jl *jsonLogfile) transformTemperature(mappedMeasuredValue map[string]interface{}) (types.MeasuredValue, error) {
temperature := &types.Temperature{
TemperatureID: mappedMeasuredValue["temperature_id"].(string),
SensorID: mappedMeasuredValue["sensor_id"].(string),
CreationDate: nil,
UpdateDate: nil,
}
temperatures := make([]*types.Temperature, 0)
f, err := os.Open(jl.cnf.Device.TemperatureLogfile)
temperatureValue, err := strconv.ParseFloat(mappedMeasuredValue["temperature_value"].(string), 64)
if err != nil {
return nil, fmt.Errorf("%v: %v", errorLogfileOpen, jl.cnf.Device.TemperatureLogfile)
return nil, fmt.Errorf("%v for temperature value. TemperatureID %v: %v", errorParseFloat, mappedMeasuredValue["temperature_id"].(string), err)
}
defer f.Close()
temperature.TemperatureValue = temperatureValue
if err := json.NewDecoder(f).Decode(&temperatures); err != nil {
return nil, fmt.Errorf("%v: %v", errorLogfileDecode, err)
temperatureFromDate, err := time.Parse(timeFormat, mappedMeasuredValue["temperature_from_date"].(string))
if err != nil {
return nil, fmt.Errorf("%v for temperature from date. TemperatureID %v: %v", errorParseTime, mappedMeasuredValue["temperature_id"].(string), err)
}
temperature.TemperatureFromDate = temperatureFromDate
temperatureTillDate, err := time.Parse(timeFormat, mappedMeasuredValue["temperature_till_date"].(string))
if err != nil {
return nil, fmt.Errorf("%v for temperature till date. TemperatureID %v: %v", errorParseTime, mappedMeasuredValue["temperature_id"].(string), err)
}
temperature.TemperatureTillDate = temperatureTillDate
if mappedMeasuredValue["creation_date"] != nil {
creationDate, err := time.Parse(timeFormat, mappedMeasuredValue["creation_date"].(string))
if err != nil {
return nil, fmt.Errorf("%v for creation date. TemperatureID %v: %v", errorParseTime, mappedMeasuredValue["temperature_id"].(string), err)
}
temperature.CreationDate = &creationDate
}
measuredValues := make([]types.MeasuredValue, 0)
for _, temperature := range temperatures {
measuredValues = append(measuredValues, temperature)
if mappedMeasuredValue["update_date"] != nil {
updateDate, err := time.Parse(timeFormat, mappedMeasuredValue["update_date"].(string))
if err != nil {
return nil, fmt.Errorf("%v for update date. TemperatureID %v: %v", errorParseTime, mappedMeasuredValue["temperature_id"].(string), err)
}
temperature.UpdateDate = &updateDate
}
return measuredValues, nil
return temperature, nil
}
func (jl *jsonLogfile) Write(measuredValues []types.MeasuredValue) error {
humidities := make([]*types.Humidity, 0)
temperatures := make([]*types.Temperature, 0)
for _, measuredValue := range measuredValues {
switch v := measuredValue.(type) {
case *types.Humidity:
humidities = append(humidities, v)
case *types.Temperature:
temperatures = append(temperatures, v)
default:
return fmt.Errorf("%v", errorTypeSwitch)
if _, err := os.Stat(filepath.Dir(jl.logfile)); os.IsNotExist(err) {
if err := os.MkdirAll(filepath.Dir(jl.logfile), 755); err != nil {
return fmt.Errorf("Directory for the logfile can not be created: %v", err)
}
}
errorChannel := make(chan error, 0)
f, err := os.Create(jl.logfile)
if err != nil {
return fmt.Errorf("%v %v: %v", errorLogfileCreate, jl.logfile, err)
}
wg := new(sync.WaitGroup)
wg.Add(2)
go jl.writeHumidities(humidities, errorChannel, wg)
go jl.writeTemperatures(temperatures, errorChannel, wg)
wg.Wait()
errors := collect.Errors(errorChannel)
if len(errors) > 0 {
return prittyprint.FormatErrors(errors)
jsonEncoder := json.NewEncoder(f)
jsonEncoder.SetIndent("", " ")
err = jsonEncoder.Encode(measuredValues)
if err != nil {
return fmt.Errorf("%v %v: %v", errorLogfileEncode, jl.logfile, err)
}
return nil
}
func (jl *jsonLogfile) writeHumidities(humidities []*types.Humidity, errorChannel chan<- error, wg *sync.WaitGroup) {
defer wg.Done()
f, err := os.Create(jl.cnf.Device.HumidityLogfile)
if err != nil {
errorChannel <- fmt.Errorf("%v: %v", errorLogfileCreate, jl.cnf.Device.HumidityLogfile)
return
}
defer f.Close()
jsonEncoder := json.NewEncoder(f)
jsonEncoder.SetIndent("", " ")
err = jsonEncoder.Encode(humidities)
if err != nil {
errorChannel <- fmt.Errorf("%v: %v", errorLogfileEncode, err)
return
}
}
func (jl *jsonLogfile) writeTemperatures(temperatures []*types.Temperature, errorChannel chan<- error, wg *sync.WaitGroup) {
defer wg.Done()
f, err := os.Create(jl.cnf.Device.TemperatureLogfile)
if err != nil {
errorChannel <- fmt.Errorf("%v: %v", errorLogfileCreate, jl.cnf.Device.TemperatureLogfile)
return
}
defer f.Close()
//writeCreationDate(temperatures)
jsonEncoder := json.NewEncoder(f)
jsonEncoder.SetIndent("", " ")
err = jsonEncoder.Encode(temperatures)
if err != nil {
errorChannel <- fmt.Errorf("%v: %v", errorLogfileEncode, err)
return
}
}

32
pkg/logfile/logfile.go
View File

@@ -1,11 +1,12 @@
package logfile
import (
"github.com/go-flucky/flucky/pkg/config"
"path/filepath"
"time"
)
// var validUUID = regexp.MustCompile("^[a-fA-F0-9]{8}-[a-fA-F0-9]{4}-4[a-fA-F0-9]{3}-[8|9|aA|bB][a-fA-F0-9]{3}-[a-fA-F0-9]{12}$")
// var timeFormat = "2006-01-02 15:04:05.999999999 -0700"
var timeFormat = time.RFC3339
// // AppendTemperatures with temperature values from a logfile. As additional
// // option it's possible to compress the temperature data.
@@ -77,30 +78,29 @@ import (
// New returns a log file with basic functions for reading and writing data. The
// file extension of the logfile is taken into account to format the logfile
// into the correct format.
func New(cnf *config.Configuration) Logfile {
func New(logfile string) Logfile {
// switch ext {
ext := filepath.Join(logfile)
switch ext {
// case ".csv":
// return &csvLogfile{
// logfile: logfile,
// }
// case ".json":
// return &jsonLogfile{
// cnf: cnf,
// }
case ".json":
return &jsonLogfile{
logfile: logfile,
}
// case ".xml":
// return &xmlLogfile{
// logfile: logfile,
// }
// default:
// return &jsonLogfile{
// logfile: logfile,
// }
// }
return &jsonLogfile{
cnf: cnf,
default:
return &jsonLogfile{
logfile: logfile,
}
}
}
// // SplittTemperatures into multiple arrays. The Size can be defined by