autocloseable implemented and app.java creted for the standalone version

src/main/java/org/gcube/vremanagement/App.java

@@ -0,0 +1,41 @@
+package org.gcube.vremanagement;
+
+import java.io.IOException;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public class App {
+	
+	private static Logger logger = LoggerFactory
+			.getLogger(App.class);
+
+	private static String[] listVOs= {"D4Research","gCubeApps","FARM","ParthenosVO","OpenAIRE"};
+	private static String scopeIn = "/d4science.research-infrastructures.eu";
+	private static int skipLines = 3;
+	private static String InCsvFile="VREDecommisioned-240326.csv";
+	//Used for GooGle APis;
+	
+	
+	public static void main (String[] args)
+	{
+		
+		try(VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines);){
+			
+			String voIn="D4Research";
+			String vreName="FoodborneOutbreak";
+			updaterCSV.getVREInfoFromClient(scopeIn,voIn, vreName);
+			
+			logger.debug("Updating VREs in a LOCAL CSV file");
+			updaterCSV.updateCSVformCSVList(scopeIn);
+			logger.debug("Update CSV done");
+			
+			logger.debug("Getting missing VRE in a LOCAL CSV file");
+			updaterCSV.missingVREinCSV(scopeIn, listVOs);
+			logger.debug("Missing CSV done");
+			
+		}catch (IOException e)
+		{e.printStackTrace();};
+		
+	}
+}

src/main/java/org/gcube/vremanagement/VREQueryService.java

@@ -43,7 +43,7 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 
-public class VREQueryService {
+public class VREQueryService implements AutoCloseable{
 	
 	private File fileCSV;
 	private File outFileCSV;
@@ -65,7 +65,7 @@ public class VREQueryService {
 
 	
 	
-	public VREQueryService(String _InCsvPath, int _skipLines)
+	public VREQueryService (String _InCsvPath, int _skipLines)
 	{
 		try {
 			String filePath = "src/test/resources";
@@ -95,19 +95,15 @@ public class VREQueryService {
 	
 	public static VREQueryService getInstance() { return new VREQueryService();};
 	
-	
+
-	protected void finalize() throws Throwable
+	public void close() throws IOException
 	{
-		try {
+		if(csvReader !=null) { csvReader.close();}
-			csvReader.close();
+		if(csvWriter !=null) { csvWriter.close();}
-		}finally {
+		if(csvMissWriter !=null) {csvMissWriter.close();}
-			super.finalize();
-		}
 	}
 	
 	
-	
-	
 	public List<Report> getReportVREs(String _scopeVO)
 	{
 		try {

src/test/java/org/gcube/vremanagement/CsvUpdateTest.java

@@ -1,6 +1,7 @@
 package org.gcube.vremanagement;
-import static org.junit.jupiter.api.Assertions.*;
 
+
+import java.io.IOException;
 import java.util.InputMismatchException;
 import java.util.Scanner;
 
@@ -30,41 +31,59 @@ class CsvUpdateTest {
 	
 	@Test 
 	void QueryClientVREInfoTest(){
-		VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines);
+		
+		try(VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines)){
 		String voIn="D4Research";
 		String vreName="FoodborneOutbreak";
+		logger.debug("Checking information about the VRE "+vreName+" in the VO:"+voIn);
 		updaterCSV.getVREInfoFromClient(scopeIn,voIn, vreName);
+		}catch(IOException e)
+		{
+			e.printStackTrace();
+		}
 	}
 	
 	
 	@Test
 	void UpdateLocalCSVTest() {
-		VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines);
+		try(VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines)){
 		logger.debug("Updating VREs in a LOCAL CSV file");
 		updaterCSV.updateCSVformCSVList(scopeIn);
 		logger.debug("Update CSV done");
+		}catch(IOException e)
+		{
+			e.printStackTrace();
+		}
 	}
 	
 	@Test
 	void MissingLocalCSVTest(){
-		VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines);
+		try(VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines)){
 		logger.debug("Getting missing VRE in a LOCAL CSV file");
 		updaterCSV.missingVREinCSV(scopeIn, listVOs);
 		logger.debug("Missing CSV done");
+		}catch(IOException e)
+		{
+			e.printStackTrace();
+		}
 	}
 
 	
 	@Disabled
 	@Test 
 	void UpdateEndTimeVRETest(){
-		
+		try(VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines)){
 		String voTimeIn="D4Research";
 		String vreTimeName="FoodborneOutbreak";
 		int yearIn=2024;
 		int monthIn=2; //Months start from zero
 		int dayIn=21;
-		VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines);
+		
 		updaterCSV.updateEndTimeVRE(scopeIn, voTimeIn, vreTimeName, yearIn,monthIn, dayIn);
+		}catch(IOException e)
+		{
+			e.printStackTrace();
+		}
 	}
 	
 	
@@ -110,7 +129,7 @@ class CsvUpdateTest {
 		int choice=0;
 		
 		do {
-			VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines);
+			try (VREQueryService updaterCSV = new VREQueryService(InCsvFile,skipLines)){
 			
 			logger.debug("Menu:");
 			logger.debug("1. Update VREs in a LOCAL CSV file");
@@ -121,7 +140,7 @@ class CsvUpdateTest {
 			logger.debug("6. Update Missing VRES in a Remore Google Sheet");
 			logger.debug("7. Exit");
 			logger.debug("Choice:");
-			try {
+			
 			choice = scanner.nextInt();
 			scanner.nextLine();