70 lines
1.6 KiB
Go
70 lines
1.6 KiB
Go
package logfile
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import (
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"encoding/json"
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"fmt"
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"os"
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"path/filepath"
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"github.com/go-flucky/flucky/pkg/types"
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)
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type jsonLogfile struct {
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logfile string
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}
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func (jl *jsonLogfile) Read() ([]*types.MeasuredValue, error) {
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if _, err := os.Stat(jl.logfile); os.IsNotExist(err) {
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if _, err := os.Stat(filepath.Dir(jl.logfile)); os.IsNotExist(err) {
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if err := os.MkdirAll(filepath.Dir(jl.logfile), 0755); err != nil {
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return nil, fmt.Errorf("%v: %v", errorDirectoryCreate, filepath.Dir(jl.logfile))
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}
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}
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f, err := os.Create(jl.logfile)
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if err != nil {
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return nil, fmt.Errorf("%v: %v", errorLogfileCreate, jl.logfile)
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}
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f.WriteString("{}")
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f.Close()
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}
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f, err := os.Open(jl.logfile)
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if err != nil {
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return nil, fmt.Errorf("%v %v: %v", errorLogfileOpen, jl.logfile, err)
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}
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measuredValues := make([]*types.MeasuredValue, 0)
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if err := json.NewDecoder(f).Decode(&measuredValues); err != nil {
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return nil, fmt.Errorf("%v %v: %v", errorLogfileDecode, jl.logfile, err)
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}
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return measuredValues, nil
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}
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func (jl *jsonLogfile) Write(measuredValues []*types.MeasuredValue) error {
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if _, err := os.Stat(filepath.Dir(jl.logfile)); os.IsNotExist(err) {
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if err := os.MkdirAll(filepath.Dir(jl.logfile), 755); err != nil {
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return fmt.Errorf("Directory for the logfile can not be created: %v", err)
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}
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}
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f, err := os.Create(jl.logfile)
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if err != nil {
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return fmt.Errorf("%v %v: %v", errorLogfileCreate, jl.logfile, err)
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}
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jsonEncoder := json.NewEncoder(f)
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jsonEncoder.SetIndent("", " ")
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err = jsonEncoder.Encode(measuredValues)
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if err != nil {
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return fmt.Errorf("%v %v: %v", errorLogfileEncode, jl.logfile, err)
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}
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return nil
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}
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