init: first steps

modules/log/formatter.go

@@ -0,0 +1,28 @@
+package log
+
+import (
+	"fmt"
+
+	"github.com/sirupsen/logrus"
+)
+
+type TextFormatter struct {
+	logrusFormatter logrus.TextFormatter
+	prefix          []byte
+}
+
+func NewTextFormatter(prefix string) *TextFormatter {
+	return &TextFormatter{
+		logrusFormatter: logrus.TextFormatter{},
+		prefix:          []byte(fmt.Sprintf("[%s] ", prefix)),
+	}
+}
+
+func (t *TextFormatter) Format(item *logrus.Entry) ([]byte, error) {
+	original, err := t.logrusFormatter.Format(item)
+	if err != nil {
+		return nil, err
+	}
+
+	return append(t.prefix, original...), nil
+}

modules/log/manager.go

@@ -0,0 +1,47 @@
+package log
+
+import (
+	"sync"
+
+	"github.com/sirupsen/logrus"
+)
+
+const (
+	SERVER   = "server"
+	SYSTEM   = "system"
+	DATABASE = "database"
+)
+
+var Global *LoggerManager
+
+func SetGlobalManager(manager *LoggerManager) {
+	Global = manager
+}
+
+type LoggerManager struct {
+	loggers map[string]*logrus.Logger
+	mu      sync.Mutex
+}
+
+func (m *LoggerManager) Get(name string) *logrus.Logger {
+	if logger, ok := m.loggers[name]; ok {
+		return logger
+	}
+
+	return nil
+}
+
+func (m *LoggerManager) Put(name string, logger *logrus.Logger) {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+
+	logger.Formatter = NewTextFormatter(name)
+
+	m.loggers[name] = logger
+}
+
+func NewManager() *LoggerManager {
+	return &LoggerManager{
+		loggers: make(map[string]*logrus.Logger),
+	}
+}