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log.go
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log.go
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package gostellar
import (
"context"
"fmt"
"github.com/MilosSimic/pipes"
sPb "github.com/c12s/scheme/stellar"
"github.com/golang/protobuf/proto"
"io/ioutil"
"os"
"path"
)
func writeBytes(file *os.File, bytes []byte) error {
_, err := file.Write(bytes)
if err != nil {
return err
}
return nil
}
func readFileBytes(path string) ([]byte, error) {
data, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
return data, nil
}
func CheckCollectorDir(path string) error {
if _, err := os.Stat(path); os.IsNotExist(err) {
err := os.Mkdir(path, 0755)
if err != nil {
return err
}
}
return nil
}
func CollectTraces(ctx context.Context, path string) chan interface{} {
files, err := ioutil.ReadDir(path)
f := []interface{}{}
if err != nil {
fmt.Println(err)
return nil
}
for _, item := range files {
f = append(f, item.Name())
}
pipe1 := pipes.Pipe(ctx, pipes.Source(ctx, f), func(data []interface{}) interface{} {
for _, elem := range data {
name := elem.(string)
f := fmt.Sprintf("%s%s", path, name)
b, err := readFileBytes(f)
if err != nil {
return err
}
return b
}
return nil
})
pipe2 := pipes.Pipe(ctx, pipe1, func(data []interface{}) interface{} {
for _, elem := range data {
switch value := elem.(type) {
case []byte:
s := &sPb.Span{}
err = proto.Unmarshal(value, s)
if err != nil {
return err
}
return s
case error:
return value
}
}
return nil
})
return pipe2
}
func ClearDir(dir string) error {
names, err := ioutil.ReadDir(dir)
if err != nil {
return err
}
for _, entery := range names {
os.RemoveAll(path.Join([]string{dir, entery.Name()}...))
}
return nil
}
func Log(data []byte, traceid, spanid string) error {
file, err := os.Create(fmt.Sprintf("logs/%s_%s.log", traceid, spanid))
defer file.Close()
if err != nil {
return err
}
err = writeBytes(file, data)
if err != nil {
return err
}
return nil
}