Log4j 2 Programmatic Configuration BAEL 1338 (#4057)

logging-modules/log4j2-programmatic-configuration/simple-configuration-xml/src/main/resources/log4j2.xml

@@ -0,0 +1,32 @@
+<?xml version="1.0" ?>
+<Configuration>
+	<Appenders>
+		<Console name="Stdout">
+			<PatternLayout pattern="%d [%t] %-5level: %msg%n%throwable" />
+			<MarkerFilter onMatch="ACCEPT" onMismatch="DENY" marker="FLOW" />
+		</Console>
+		<RollingFile name="rolling" fileName="target/rolling.log"
+			filePattern="target/archive/rolling-%d{MM-dd-yy}.log.gz">
+			<PatternLayout pattern="%d [%t] %-5level: %msg%n%throwable" />
+			<Policies>
+				<CronTriggeringPolicy schedule="0 0 0 * * ?" />
+				<SizeBasedTriggeringPolicy size="100M" />
+			</Policies>
+		</RollingFile>
+		<File name="FileSystem" fileName="target/logging.log">
+			<PatternLayout pattern="%d [%t] %-5level: %msg%n%throwable" />
+		</File>
+	</Appenders>
+	<Loggers>
+		<Logger name="com" level="DEBUG" additivity="false">
+			<AppenderRef ref="Stdout" />
+			<AppenderRef ref="rolling" />
+			<AppenderRef ref="FileSystem" />
+		</Logger>
+		<Root level="ERROR" additivity="false">
+			<AppenderRef ref="Stdout" />
+			<AppenderRef ref="rolling" />
+			<AppenderRef ref="FileSystem" />
+		</Root>
+	</Loggers>
+</Configuration>

logging-modules/log4j2-programmatic-configuration/simple-configuration-xml/src/test/java/com/baeldung/log4j2/logtest/LogTest.java

@@ -0,0 +1,30 @@
+/**
+  This class loads the logging configuration from the xml defined in 
+  src/main/resources and uses the same configuration  generated through 
+  programmatic configuration as defined in simple-configuration example.
+**/
+
+package com.baeldung.log4j2.logtest;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.apache.logging.log4j.Marker;
+import org.apache.logging.log4j.MarkerManager;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+
+@RunWith(JUnit4.class)
+public class LogTest {
+
+    @Test
+    public void simpleProgrammaticConfiguration(){
+        Logger logger = LogManager.getLogger();
+        Marker markerContent = MarkerManager.getMarker("FLOW");
+        logger.debug(markerContent, "Debug log message");
+        logger.info(markerContent, "Info log message");
+        logger.error(markerContent, "Error log message");
+    }
+
+}