|
| 1 | +package push |
| 2 | + |
| 3 | +import ( |
| 4 | + "encoding/csv" |
| 5 | + "fmt" |
| 6 | + "os" |
| 7 | + |
| 8 | + "github.com/cgi-fr/lino/pkg/push" |
| 9 | + "github.com/rs/zerolog/log" |
| 10 | +) |
| 11 | + |
| 12 | +type SQLLogger struct { |
| 13 | + folderPath string |
| 14 | +} |
| 15 | + |
| 16 | +func NewSQLLogger(folderPath string) *SQLLogger { |
| 17 | + return &SQLLogger{ |
| 18 | + folderPath: folderPath, |
| 19 | + } |
| 20 | +} |
| 21 | + |
| 22 | +func (s *SQLLogger) Open() error { |
| 23 | + if s == nil { |
| 24 | + // SQLLogger is not set. |
| 25 | + return nil |
| 26 | + } |
| 27 | + |
| 28 | + // Check if the folder exists |
| 29 | + if _, err := os.Stat(s.folderPath); os.IsNotExist(err) { |
| 30 | + // Create the folder if it doesn't exist |
| 31 | + if err := os.MkdirAll(s.folderPath, 0o755); err != nil { //nolint:mnd |
| 32 | + return err |
| 33 | + } |
| 34 | + } |
| 35 | + // Check if we have permission to write in the folder |
| 36 | + if err := os.WriteFile(s.folderPath+"/.test", []byte("test"), 0o600); err != nil { |
| 37 | + return err |
| 38 | + } |
| 39 | + // Remove the test file |
| 40 | + _ = os.Remove(s.folderPath + "/.test") |
| 41 | + return nil |
| 42 | +} |
| 43 | + |
| 44 | +type SQLLoggerWriter struct { |
| 45 | + writer *csv.Writer |
| 46 | +} |
| 47 | + |
| 48 | +func (s *SQLLogger) OpenWriter(table push.Table, sqlquery string) *SQLLoggerWriter { |
| 49 | + if s == nil { |
| 50 | + // SQLLogger is not set. |
| 51 | + return nil |
| 52 | + } |
| 53 | + |
| 54 | + filename := s.folderPath + "/" + table.Name() + ".csv" |
| 55 | + writer, err := os.OpenFile(filename, os.O_CREATE|os.O_WRONLY|os.O_TRUNC, 0o644) |
| 56 | + if err != nil { |
| 57 | + log.Warn().Err(err).Msgf("Cannot open file %v for SQL logger", filename) |
| 58 | + } |
| 59 | + |
| 60 | + logger := &SQLLoggerWriter{ |
| 61 | + writer: csv.NewWriter(writer), |
| 62 | + } |
| 63 | + |
| 64 | + if _, err := writer.WriteString("# " + sqlquery + "\n"); err != nil { |
| 65 | + log.Warn().Err(err).Msgf("Cannot write into file %v for SQL logger", filename) |
| 66 | + } |
| 67 | + |
| 68 | + return logger |
| 69 | +} |
| 70 | + |
| 71 | +func (w *SQLLoggerWriter) Write(data []any) { |
| 72 | + if w == nil { |
| 73 | + // SQLLoggerWriter is not set. |
| 74 | + return |
| 75 | + } |
| 76 | + |
| 77 | + // Write the data to the file in CSV format |
| 78 | + if err := w.writer.Write(toStrings(data)); err != nil { |
| 79 | + log.Warn().Err(err).Msgf("Cannot log SQL statement") |
| 80 | + } |
| 81 | +} |
| 82 | + |
| 83 | +func toStrings(data []any) []string { |
| 84 | + strings := make([]string, len(data)) |
| 85 | + for i, v := range data { |
| 86 | + strings[i] = toString(v) |
| 87 | + } |
| 88 | + return strings |
| 89 | +} |
| 90 | + |
| 91 | +func toString(data any) string { |
| 92 | + return fmt.Sprintf("%v", data) |
| 93 | +} |
| 94 | + |
| 95 | +func (w *SQLLoggerWriter) Close() { |
| 96 | + if w == nil { |
| 97 | + // SQLLoggerWriter is not set. |
| 98 | + return |
| 99 | + } |
| 100 | + |
| 101 | + w.writer.Flush() |
| 102 | + if err := w.writer.Error(); err != nil { |
| 103 | + log.Warn().Err(err).Msgf("Cannot flush SQL logger") |
| 104 | + } |
| 105 | +} |
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