45 lines
881 B
Go
45 lines
881 B
Go
package logreader
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import (
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"bufio"
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"encoding/json"
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"github.com/lmika/awstools/internal/slog-view/models"
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"github.com/pkg/errors"
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"log"
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"os"
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)
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type Service struct {
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}
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func NewService() *Service {
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return &Service{}
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}
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func (s *Service) Open(filename string) (*models.LogFile, error) {
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f, err := os.Open(filename)
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if err != nil {
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return nil, errors.Wrapf(err, "cannot open file: %v", filename)
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}
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defer f.Close()
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var lines []models.LogLine
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scanner := bufio.NewScanner(f)
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for scanner.Scan() {
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line := scanner.Text()
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var data interface{}
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if err := json.Unmarshal([]byte(line), &data); err != nil {
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log.Println("invalid json line: %v", err)
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continue
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}
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lines = append(lines, models.LogLine{JSON: data})
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}
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if scanner.Err() != nil {
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return nil, errors.Wrapf(err, "unable to scan file: %v", filename)
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}
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return &models.LogFile{Lines: lines}, nil
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}
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