added loging with log4j2

pom.xml

@@ -54,6 +54,17 @@
 			<artifactId>spring-boot-starter-webmvc-test</artifactId>
 			<scope>test</scope>
 		</dependency>
+
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-api</artifactId>
+			<version>2.12.4</version>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-core</artifactId>
+			<version>2.12.4</version>
+		</dependency>
 	</dependencies>
 
 	<build>

src/main/java/bzh/risotto/dualsensgui/DualsensController.java

@@ -3,9 +3,13 @@ package bzh.risotto.dualsensgui;
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
 public class DualsensController {
 
     private static DualsensController dualsensController;
+    private static final Logger logger = LogManager.getLogger(DualsensController.class);
 
     private DualsensController() {
 
@@ -41,7 +45,7 @@ public class DualsensController {
             process.waitFor();
         } catch (Exception e) {
 
-            e.printStackTrace();
+            logger.error("Error while executing command: {}", command, e);
         }
 
         return res.toString();

src/main/resources/log4j2.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="INFO">
+    <!-- Define the appenders -->
+    <Appenders>
+        <!-- Console Appender -->
+        <Console name="ConsoleAppender" target="SYSTEM_OUT">
+            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} [%t] %-5level %logger{36} - %msg%n" />
+        </Console>
+        <!-- File Appender -->
+        <File name="FileAppender" fileName="applogs/application_logs.log">
+            <PatternLayout pattern="%d{yyyy-MM-dd HH:mm:ss} [%t] %-5level %logger{36} - %msg%n" />
+        </File>
+    </Appenders>
+    <!-- Define the loggers -->
+    <Loggers>
+        <!-- Root Logger -->
+        <Root level="info">
+            <AppenderRef ref="ConsoleAppender" />
+            <AppenderRef ref="FileAppender" />
+        </Root>
+        <!-- Logger for specific package -->
+        <Logger name="com.example.myapp" level="debug">
+            <AppenderRef ref="FileAppender" />
+        </Logger>
+    </Loggers>
+</Configuration>