#587 SonarQube reports bugs

model-view-presenter/src/main/java/com/iluwatar/model/view/presenter/FileLoader.java

@@ -25,6 +25,10 @@ package com.iluwatar.model.view.presenter;
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileReader;
+import java.io.Serializable;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
 /**
  * Every instance of this class represents the Model component in the Model-View-Presenter
@@ -32,7 +36,14 @@ import java.io.FileReader;
  * <p>
  * It is responsible for reading and loading the contents of a given file.
  */
-public class FileLoader {
+public class FileLoader implements Serializable{
+
+  /**
+   * Generated serial version UID
+   */
+  private static final long serialVersionUID = -4745803872902019069L;
+  
+  private static final Logger LOGGER = LoggerFactory.getLogger(FileLoader.class);
 
   /**
    * Indicates if the file is loaded or not.
@@ -48,7 +59,8 @@ public class FileLoader {
    * Loads the data of the file specified.
    */
   public String loadData() {
-    try (BufferedReader br = new BufferedReader(new FileReader(new File(this.fileName)))) {
+    String dataFileName = this.fileName;
+    try (BufferedReader br = new BufferedReader(new FileReader(new File(dataFileName)))) {
       StringBuilder sb = new StringBuilder();
       String line;
 
@@ -60,7 +72,7 @@ public class FileLoader {
 
       return sb.toString();
     } catch (Exception e) {
-      e.printStackTrace();
+      LOGGER.error("File {} does not exist", dataFileName);
     }
 
     return null;

model-view-presenter/src/main/java/com/iluwatar/model/view/presenter/FileSelectorPresenter.java

@@ -22,13 +22,20 @@
  */
 package com.iluwatar.model.view.presenter;
 
+import java.io.Serializable;
+
 /**
  * Every instance of this class represents the Presenter component in the Model-View-Presenter
  * architectural pattern.
  * <p>
  * It is responsible for reacting to the user's actions and update the View component.
  */
-public class FileSelectorPresenter {
+public class FileSelectorPresenter implements Serializable{
+
+  /**
+   * Generated serial version UID
+   */
+  private static final long serialVersionUID = 1210314339075855074L;
 
   /**
    * The View component that the presenter interacts with.

model-view-presenter/src/main/java/com/iluwatar/model/view/presenter/FileSelectorView.java

@@ -22,11 +22,13 @@
  */
 package com.iluwatar.model.view.presenter;
 
+import java.io.Serializable;
+
 /**
  * This interface represents the View component in the Model-View-Presenter pattern. It can be
  * implemented by either the GUI components, or by the Stub.
  */
-public interface FileSelectorView {
+public interface FileSelectorView extends Serializable{
 
   /**
    * Opens the view.