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SBF.Common/Log/NLogManager.cs

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+using NLog;
+using System.Collections.Concurrent;
+
+namespace SBF.Common.Log
+{
+    public class NLogManager
+    {
+        private ConcurrentDictionary<string, ILogger> loggerDictionary;
+        private string defaultLoggerName = "default";
+
+        public NLogManager()
+        {
+            loggerDictionary = new ConcurrentDictionary<string, ILogger>();
+            loggerDictionary.TryAdd("default", NLog.LogManager.GetLogger(defaultLoggerName));
+        }
+
+        public ILogger Default()
+        {
+            return loggerDictionary[defaultLoggerName];
+        }
+
+        public ILogger GetLogger(string loggerName)
+        {
+            if (string.IsNullOrEmpty(loggerName))
+                return Default();
+            if (!loggerDictionary.TryGetValue(loggerName, out ILogger logger))
+            {
+                logger = NLog.LogManager.GetLogger(loggerName);
+                loggerDictionary.TryAdd(loggerName, logger);
+            }
+            return logger;
+        }
+    }
+}