Add logging capabilities (#1)

* Added log4j2 xml
* Added logging in sql script executor repo
---------
Co-authored-by: P70759 <P70759@NRB069125.nrb.adms>

Author: pstampernas-efsa

pom.xml

@@ -11,6 +11,19 @@
 		<maven.compiler.target>1.8</maven.compiler.target>
 		<project.build.sourceEncoding>Cp1252</project.build.sourceEncoding>
 	</properties>
+	
+	<dependencies>
+	   <dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-api</artifactId>
+			<version>[2.17.1,)</version>
+		</dependency>
+		<dependency>
+			<groupId>org.apache.logging.log4j</groupId>
+			<artifactId>log4j-core</artifactId>
+			<version>[2.17.1,)</version>
+		</dependency>
+	</dependencies>
 
 	<build>
 		<sourceDirectory>src/main/java</sourceDirectory>

src/main/java/sql/SQLExecutor.java

@@ -15,8 +15,13 @@
 import java.util.List;
 import java.util.StringTokenizer;
 
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+
 public class SQLExecutor implements AutoCloseable {
 
+	private static final Logger LOGGER = LogManager.getLogger(SQLExecutor.class);
+	
 	private Connection con;
 	private boolean verbose;
 
@@ -39,6 +44,7 @@ public SQLExecutor(Connection con, boolean verbose) {
 	public void exec(File file) throws IOException, SQLException {
 		Path path = Paths.get(file.getAbsolutePath());
 		String queries = new String(Files.readAllBytes(path));
+		LOGGER.info("Queries ", queries);
 		exec(queries);
 	}
 
@@ -78,7 +84,7 @@ public void exec(String sql) throws SQLException {
 		for (SQLStatement stmt : statements) {
 
 			if (verbose)
-				System.out.println(stmt);
+				LOGGER.info("SQL statement : " + stmt);
 
 			stmt.exec();
 		}

src/main/resources/log4j2.xml

@@ -0,0 +1,33 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Configuration status="INFO">
+	<Appenders>
+
+		<Console name="Console" target="SYSTEM_OUT">
+			<PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n" />
+		</Console>
+
+		<RollingFile name="File" filename="logs/latest.efsa.log"
+			filePattern="logs/$${date:yyyy-MM-dd-HH-mm-ss}.efsa.log">
+			<PatternLayout>
+				<pattern>%d %p %c{1.} [%t] %m%n</pattern>
+			</PatternLayout>
+			
+			<Policies>
+				<OnStartupTriggeringPolicy /> <!-- Every time that the application is run, a new log file is created -->
+			</Policies>
+			
+			<DefaultRolloverStrategy>
+				<Delete basePath="logs/">
+					<IfLastModified age="20d" />
+				</Delete>
+			</DefaultRolloverStrategy>
+		</RollingFile>
+
+	</Appenders>
+	<Loggers>
+		<Root level="info">
+			<AppenderRef ref="Console" />
+			<AppenderRef ref="File" />
+		</Root>
+	</Loggers>
+</Configuration>