1 files changed, 60 insertions, 0 deletions
diff --git a/internal/io/dlog/loggers/factory.go b/internal/io/dlog/loggers/factory.go
new file mode 100644
index 0000000..3eb29c5
--- /dev/null
+++ b/internal/io/dlog/loggers/factory.go
@@ -0,0 +1,60 @@
+package loggers
+
+import (
+	"fmt"
+	"sync"
+)
+
+type Impl int
+
+const (
+	NONE   Impl = iota
+	STDOUT Impl = iota
+	FILE   Impl = iota
+	FOUT   Impl = iota
+)
+
+var factoryMap map[string]Logger
+var factoryMutex sync.Mutex
+
+func Factory(name string, impl Impl) Logger {
+	factoryMutex.Lock()
+	defer factoryMutex.Unlock()
+
+	id := fmt.Sprintf("name:%s,impl:%v", name, impl)
+
+	if factoryMap == nil {
+		factoryMap = make(map[string]Logger)
+	}
+
+	singleton, ok := factoryMap[id]
+	if !ok {
+		switch impl {
+		case NONE:
+			singleton = none{}
+		case STDOUT:
+			singleton = newStdout()
+			factoryMap[id] = singleton
+		case FILE:
+			singleton = newFile()
+			factoryMap[id] = singleton
+		case FOUT:
+			singleton = newFout()
+			factoryMap[id] = singleton
+		}
+	}
+
+	return singleton
+}
+
+func FactoryRotate() {
+	factoryMutex.Lock()
+	defer factoryMutex.Unlock()
+	if factoryMap == nil {
+		return
+	}
+
+	for _, impl := range factoryMap {
+		impl.Rotate()
+	}
+}