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ServerCore/Log/CloudWatchLog.cs

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+using Amazon.Runtime;
+
+
+using NLog;
+using NLog.AWS.Logger;
+using NLog.Config;
+using NLog.Layouts;
+
+
+namespace ServerCore;
+
+public static class CloudWatchLog
+{
+    private static bool m_is_opened = true;
+
+    public static bool setup( string? logGroup = null, string? logNamePattern = null, string? logLevel = null
+                            , string? awsRegion = null, string? awsAccessKey = null, string? awsSecretKey = null
+                            , Layout? layout = null )
+    {
+        if ( logGroup == string.Empty ||
+             logNamePattern == string.Empty ||
+             logLevel == string.Empty ||
+             awsRegion == string.Empty || 
+             awsAccessKey == string.Empty ||
+             awsSecretKey == string.Empty )
+        {
+            return false;
+        }
+
+        var current_config = LogManager.Configuration;
+        if(null == current_config)
+        {
+            return false;
+        }
+
+        var aws_target = new AWSTarget()
+        {
+            LogGroup = logGroup,
+            Region = awsRegion,
+            Credentials = new BasicAWSCredentials(awsAccessKey, awsSecretKey),
+            Layout = layout
+        };
+
+        var newRule = new LoggingRule(logNamePattern, LogLevel.FromString(logLevel), aws_target);
+        current_config.LoggingRules.Add(newRule);
+
+        LogManager.ReconfigExistingLoggers();
+
+        return true;
+    }
+
+    public static void setClosed() => m_is_opened = false;
+
+    public static bool isOpened() => m_is_opened;
+}