add log4j example

.github/workflows/ci.yml

@@ -17,7 +17,7 @@ jobs:
       matrix:
         # The MODULE environment variable is evaluated in build-all.sh to run a subset
         # of the builds. This way, multiple modules can be built in parallel.
-        module: [ "module1", "module2", "module3", "module4", "module5" ]
+        module: [ "module1", "module2", "module3", "module4", "module5", "module6" ]
 
     steps:
 

build-all.sh

@@ -82,10 +82,20 @@ build_maven_module() {
   }
 }
 
-if [[ "$MODULE" == "module5" ]]
+if [[ "$MODULE" == "module6" ]]
 then
   # ADD NEW MODULES HERE
   # (add new modules above the rest so you get quicker feedback if it fails)
+  build_maven_module "logging/log4j"
+
+  echo ""
+  echo "+++"
+  echo "+++ MODULE 6 SUCCESSFUL"
+  echo "+++"
+fi
+
+if [[ "$MODULE" == "module5" ]]
+then
   build_gradle_module "spring-boot/hazelcast/hazelcast-embedded-cache"
   build_gradle_module "spring-boot/hazelcast/hazelcast-client-server"
   build_maven_module "core-java/heapdump"

logging/log4j/pom.xml

@@ -0,0 +1,39 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>io.reflectoring</groupId>
+    <artifactId>logging-log4j</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>11</maven.compiler.source>
+        <maven.compiler.target>11</maven.compiler.target>
+    </properties>
+
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-api</artifactId>
+            <version>2.14.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-core</artifactId>
+            <version>2.14.1</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.logging.log4j</groupId>
+            <artifactId>log4j-slf4j-impl</artifactId>
+            <version>2.14.1</version>
+        </dependency>
+        <dependency>
+            <groupId>io.logz.log4j2</groupId>
+            <artifactId>logzio-log4j2-appender</artifactId>
+            <version>1.0.12</version>
+        </dependency>
+    </dependencies>
+</project>

logging/log4j/src/main/java/io/reflectoring/Main.java

@@ -0,0 +1,17 @@
+package io.reflectoring;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class Main {
+
+    public static void main(String[] args) {
+        Logger logger = LoggerFactory.getLogger(Main.class);
+
+        logger.debug("This is a debug message");
+        logger.info("This is an info message");
+        logger.warn("This is a warn message");
+        logger.error("This is an error message");
+    }
+
+}

logging/log4j/src/main/resources/log4j2.xml

@@ -0,0 +1,20 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="WARN">
+
+    <Appenders>
+        <Console name="CONSOLE" target="SYSTEM_OUT">
+            <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/>
+        </Console>
+        <LogzioAppender name="LOGZIO">
+            <logzioToken>eoUyeKjGgqfrMGVWeZLfTyYCAmBTbhvh</logzioToken>
+            <logzioUrl>https://listener.logz.io:8071</logzioUrl>
+            <logzioType>java</logzioType>
+        </LogzioAppender>
+    </Appenders>
+
+    <Loggers>
+        <Root level="INFO">
+            <AppenderRef ref="${env:LOG_APPENDER:-CONSOLE}"/>
+        </Root>
+    </Loggers>
+</Configuration>