From 84cf90947ea85d7a65c6c272ef362293a3d92815 Mon Sep 17 00:00:00 2001
From: Andrea Cavalli <andrea@cavallium.it>
Date: Wed, 9 Jun 2021 01:49:58 +0200
Subject: [PATCH] Initialize logs with slf4j root settings if no root level has
 been set

---
 .../java/org/warp/commonutils/log/Logs.java   | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/src/main/java/org/warp/commonutils/log/Logs.java b/src/main/java/org/warp/commonutils/log/Logs.java
index 7a93959..b38cdb3 100644
--- a/src/main/java/org/warp/commonutils/log/Logs.java
+++ b/src/main/java/org/warp/commonutils/log/Logs.java
@@ -1,13 +1,37 @@
 package org.warp.commonutils.log;
 
+import org.slf4j.Logger;
+
 public class Logs {
 
+	private static volatile boolean initialized;
+
 	private static boolean traceEnabled;
 	private static boolean debugEnabled;
 	private static boolean infoEnabled;
 	private static boolean warnEnabled;
 	private static Level rootLevel;
 
+	private static void initialize() {
+		var logger = org.slf4j.LoggerFactory.getLogger(Logger.ROOT_LOGGER_NAME);
+		traceEnabled = logger.isTraceEnabled();
+		debugEnabled = logger.isDebugEnabled();
+		infoEnabled = logger.isInfoEnabled();
+		warnEnabled = logger.isWarnEnabled();
+		if (!warnEnabled) {
+			rootLevel = Level.ERROR;
+		} else if (!infoEnabled) {
+			rootLevel = Level.WARN;
+		} else if (!debugEnabled) {
+			rootLevel = Level.INFO;
+		} else if (!traceEnabled) {
+			rootLevel = Level.DEBUG;
+		} else {
+			rootLevel = Level.TRACE;
+		}
+		initialized = true;
+	}
+
 	public static void setRootLevel(Level level) {
 		rootLevel = level;
 		switch (level) {
@@ -42,29 +66,37 @@ public class Logs {
 				warnEnabled = true;
 				break;
 		}
+
+		initialized = true;
 	}
 
 	public static Level getRootLevel() {
+		if (!initialized) initialize();
 		return rootLevel;
 	}
 
 	public static boolean isTraceEnabled() {
+		if (!initialized) initialize();
 		return traceEnabled;
 	}
 
 	public static boolean isDebugEnabled() {
+		if (!initialized) initialize();
 		return debugEnabled;
 	}
 
 	public static boolean isInfoEnabled() {
+		if (!initialized) initialize();
 		return infoEnabled;
 	}
 
 	public static boolean isWarnEnabled() {
+		if (!initialized) initialize();
 		return warnEnabled;
 	}
 
 	public static boolean isErrorEnabled() {
+		if (!initialized) initialize();
 		return true;
 	}
 }