go-aah/aah#55 aah logger binding to go logger

Author: jeevatkm

console_receiver.go

@@ -91,3 +91,8 @@ func (c *ConsoleReceiver) Log(entry *Entry) {
 		_, _ = c.out.Write(resetColor)
 	}
 }
+
+// Writer method returns the current log writer.
+func (c *ConsoleReceiver) Writer() io.Writer {
+	return c.out
+}

console_receiver_test.go

@@ -121,4 +121,5 @@ func testConsoleLogger(t *testing.T, cfgStr string) {
 	logger.Error("Yes, yes, yes - finally an error")
 	logger.Errorf("Yes, yes, yes - %v", "finally an error")
 
+	assert.NotNil(t, logger.ToGoLogger())
 }

default.go

@@ -6,6 +6,8 @@ package log
 
 import (
 	"fmt"
+	"io"
+	slog "log"
 	"os"
 
 	"aahframework.org/config.v0"
@@ -123,6 +125,16 @@ func Panicln(format string, v ...interface{}) {
 	panic(fmt.Sprintf(format, v...))
 }
 
+// Writer method returns the writer of default logger.
+func Writer() io.Writer {
+	return std.receiver.Writer()
+}
+
+// ToGoLogger method wraps the current log writer into Go Logger instance.
+func ToGoLogger() *slog.Logger {
+	return std.ToGoLogger()
+}
+
 // SetDefaultLogger method sets the given logger instance as default logger.
 func SetDefaultLogger(l *Logger) {
 	std = l

discard_receiver.go

@@ -4,7 +4,12 @@
 
 package log
 
-import "aahframework.org/config.v0"
+import (
+	"io"
+	"io/ioutil"
+
+	"aahframework.org/config.v0"
+)
 
 var _ Receiver = &DiscardReceiver{}
 
@@ -31,3 +36,8 @@ func (d *DiscardReceiver) IsCallerInfo() bool {
 // Log method writes the buf to
 func (d *DiscardReceiver) Log(_ *Entry) {
 }
+
+// Writer method returns the current log writer.
+func (d *DiscardReceiver) Writer() io.Writer {
+	return ioutil.Discard
+}

file_receiver.go

@@ -111,6 +111,11 @@ func (f *FileReceiver) Log(entry *Entry) {
 	f.stats.lines++
 }
 
+// Writer method returns the current log writer.
+func (f *FileReceiver) Writer() io.Writer {
+	return f.out
+}
+
 //‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
 // FileReceiver Unexported methods
 //___________________________________

file_receiver_test.go

@@ -68,6 +68,7 @@ func TestFileLoggerRotation(t *testing.T) {
   }
   `
 	testFileLogger(t, fileConfigStrJSON, 1000)
+
 	cleaupFiles("*.log")
 }
 
@@ -156,4 +157,5 @@ func testFileLogger(t *testing.T, cfgStr string, loop int) {
 		logger.Errorf("Yes, yes, yes - %v", "finally an error")
 	}
 
+	assert.NotNil(t, logger.ToGoLogger())
 }

log.go

@@ -24,6 +24,8 @@ package log
 import (
 	"errors"
 	"fmt"
+	"io"
+	slog "log"
 	"os"
 	"strings"
 	"sync"
@@ -65,7 +67,7 @@ const (
 
 var (
 	// Version no. of aahframework.org/log library
-	Version = "0.3.2"
+	Version = "0.4"
 
 	// FmtFlags is the list of log format flags supported by aah/log library
 	// Usage of flag order is up to format composition.
@@ -113,6 +115,7 @@ type (
 		Init(cfg *config.Config) error
 		SetPattern(pattern string) error
 		IsCallerInfo() bool
+		Writer() io.Writer
 		Log(e *Entry)
 	}
 
@@ -203,6 +206,11 @@ func (l *Logger) SetReceiver(receiver Receiver) error {
 	return l.receiver.Init(l.cfg)
 }
 
+// ToGoLogger method wraps the current log writer into Go Logger instance.
+func (l *Logger) ToGoLogger() *slog.Logger {
+	return slog.New(l.receiver.Writer(), "", slog.LstdFlags)
+}
+
 //‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
 // Logger logging methods
 //_______________________________________

log_test.go

@@ -72,10 +72,16 @@ func TestMisc(t *testing.T) {
 	discard.Log(&Entry{})
 	_ = discard.SetPattern("nothing")
 	assert.False(t, discard.IsCallerInfo())
+	assert.NotNil(t, discard.Writer())
 
 	// util
 	assert.Nil(t, getReceiverByName("SMTP"))
 	assert.Equal(t, "", formatTime(time.Time{}))
+
+	stdLogger := ToGoLogger()
+	assert.NotNil(t, stdLogger)
+	assert.NotNil(t, Writer())
+	stdLogger.Print("This is aah logger binds go logger")
 }
 
 func testPanic(logger *Logger, method, msg string) {