Denis Galeev
77 lines
1.5 KiB
Go
77 lines
1.5 KiB
Go
package recorder
|
|
|
|
import (
|
|
"context"
|
|
"io"
|
|
"sync"
|
|
|
|
"github.com/go-gost/core/metrics"
|
|
"github.com/go-gost/core/recorder"
|
|
xmetrics "github.com/go-gost/x/metrics"
|
|
)
|
|
|
|
type fileRecorderOptions struct {
|
|
recorder string
|
|
sep string
|
|
}
|
|
|
|
type FileRecorderOption func(opts *fileRecorderOptions)
|
|
|
|
func RecorderFileRecorderOption(recorder string) FileRecorderOption {
|
|
return func(opts *fileRecorderOptions) {
|
|
opts.recorder = recorder
|
|
}
|
|
}
|
|
|
|
func SepFileRecorderOption(sep string) FileRecorderOption {
|
|
return func(opts *fileRecorderOptions) {
|
|
opts.sep = sep
|
|
}
|
|
}
|
|
|
|
type fileRecorder struct {
|
|
recorder string
|
|
out io.WriteCloser
|
|
sep string
|
|
|
|
mu sync.Mutex
|
|
}
|
|
|
|
// FileRecorder records data to file.
|
|
func FileRecorder(out io.WriteCloser, opts ...FileRecorderOption) recorder.Recorder {
|
|
var options fileRecorderOptions
|
|
for _, opt := range opts {
|
|
opt(&options)
|
|
}
|
|
|
|
return &fileRecorder{
|
|
recorder: options.recorder,
|
|
out: out,
|
|
sep: options.sep,
|
|
}
|
|
}
|
|
|
|
func (r *fileRecorder) Record(ctx context.Context, b []byte, opts ...recorder.RecordOption) error {
|
|
xmetrics.GetCounter(xmetrics.MetricRecorderRecordsCounter, metrics.Labels{"recorder": r.recorder}).Inc()
|
|
|
|
if r.sep != "" {
|
|
r.mu.Lock() // mutex is used to prevent unordered writes to the file
|
|
defer r.mu.Unlock()
|
|
}
|
|
|
|
if _, err := r.out.Write(b); err != nil {
|
|
return err
|
|
}
|
|
|
|
if r.sep != "" {
|
|
_, err := io.WriteString(r.out, r.sep)
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (r *fileRecorder) Close() error {
|
|
return r.out.Close()
|
|
}
|