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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Minecrell <minecrell@minecrell.net>
Date: Thu, 21 Sep 2017 16:14:55 +0200
Subject: [PATCH] Handle plugin prefixes using Log4J configuration

Display logger name in the console for all loggers except the
root logger, Bukkit's logger ("Minecraft") and Minecraft loggers.
Since plugins now use the plugin name as logger name this will
restore the plugin prefixes without having to prepend them manually
to the log messages.

Logger prefixes are shown by default for all loggers except for
the root logger, the Minecraft/Mojang loggers and the Bukkit loggers.
This may cause additional prefixes to be disabled for plugins bypassing
the plugin logger.

diff --git a/build.gradle.kts b/build.gradle.kts
index 99e44684a3f6340ed3c0f73c690a9d4d51872f0d..0edae14596ffef85e894925fd5eb826641d8b9f1 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -36,7 +36,7 @@ dependencies {
           all its classes to check if they are plugins.
           Scanning takes about 1-2 seconds so adding this speeds up the server start.
      */
-    runtimeOnly("org.apache.logging.log4j:log4j-core:2.19.0")
+    implementation("org.apache.logging.log4j:log4j-core:2.19.0") // Paper - implementation
     log4jPlugins.annotationProcessorConfigurationName("org.apache.logging.log4j:log4j-core:2.19.0") // Paper - Needed to generate meta for our Log4j plugins
     runtimeOnly(log4jPlugins.output)
     alsoShade(log4jPlugins.output)
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index e42677a14ec8e1a42747603fb4112822e326fb70..744edd40128c910c3ad2f3657bde995612e0a1e4 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -284,7 +284,7 @@ public class SpigotConfig
     private static void playerSample()
     {
         SpigotConfig.playerSample = SpigotConfig.getInt( "settings.sample-count", 12 );
-        System.out.println( "Server Ping Player Sample Count: " + SpigotConfig.playerSample );
+        Bukkit.getLogger().log( Level.INFO, "Server Ping Player Sample Count: {0}", playerSample ); // Paper - Use logger
     }
 
     public static int playerShuffle;
diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
index 301874c1fe16c52ffa6228d79e6617d746e9a035..e073707a46397f62bedf1d413f9e5764e77dda6a 100644
--- a/src/main/resources/log4j2.xml
+++ b/src/main/resources/log4j2.xml
@@ -5,10 +5,22 @@
             <PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg{nolookups}%n" />
         </Queue>
         <TerminalConsole name="TerminalConsole">
-            <PatternLayout pattern="%highlightError{[%d{HH:mm:ss} %level]: %msg%n%xEx}" />
+            <PatternLayout>
+                <LoggerNamePatternSelector defaultPattern="%highlightError{[%d{HH:mm:ss} %level]: [%logger] %msg%n%xEx}">
+                    <!-- Log root, Minecraft, Mojang and Bukkit loggers without prefix -->
+                    <PatternMatch key=",net.minecraft.,Minecraft,com.mojang."
+                                  pattern="%highlightError{[%d{HH:mm:ss} %level]: %msg%n%xEx}" />
+                </LoggerNamePatternSelector>
+            </PatternLayout>
         </TerminalConsole>
         <RollingRandomAccessFile name="File" fileName="logs/latest.log" filePattern="logs/%d{yyyy-MM-dd}-%i.log.gz">
-            <PatternLayout pattern="[%d{HH:mm:ss}] [%t/%level]: %stripAnsi{%msg}%n" />
+            <PatternLayout>
+                <LoggerNamePatternSelector defaultPattern="[%d{HH:mm:ss}] [%t/%level]: [%logger] %stripAnsi{%msg}%n">
+                    <!-- Log root, Minecraft, Mojang and Bukkit loggers without prefix -->
+                    <PatternMatch key=",net.minecraft.,Minecraft,com.mojang."
+                                  pattern="[%d{HH:mm:ss}] [%t/%level]: %stripAnsi{%msg}%n" />
+                </LoggerNamePatternSelector>
+            </PatternLayout>
             <Policies>
                 <TimeBasedTriggeringPolicy />
                 <OnStartupTriggeringPolicy />