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code/allapp/allapp-go/utils/idgen/YitIdHelper.go

@@ -0,0 +1,29 @@
+package idgen
+
+import (
+	"sync"
+)
+
+var singletonMutex sync.Mutex
+var idGenerator *DefaultIdGenerator
+
+// SetIdGenerator .
+func SetIdGenerator(options *IdGeneratorOptions) {
+	singletonMutex.Lock()
+	idGenerator = NewDefaultIdGenerator(options)
+	singletonMutex.Unlock()
+}
+
+// NextId .
+func NextId() int64 {
+	if idGenerator == nil {
+		singletonMutex.Lock()
+		defer singletonMutex.Unlock()
+		if idGenerator == nil {
+			options := NewIdGeneratorOptions(1)
+			idGenerator = NewDefaultIdGenerator(options)
+		}
+	}
+
+	return idGenerator.NewLong()
+}