src/main/java/de/hitec/nhplus/Main.java

@@ -37,10 +37,18 @@ public class Main extends Application {
     @Override
     public void start(Stage primaryStage) {
         this.primaryStage = primaryStage;
-        executePassword();
+        User user = executeLogin();
+        if(user != null){
+            executeMainApplication(user);
+        }
     }
 
-    private void executePassword() {
+    /**
+     * Executes the login.
+     * @return User The {@link User} object for the logged-in {@link User}.
+     * Is {@code null}, if the login was not successful,
+     */
+    private User executeLogin() {
         try {
 
             FXMLLoader loader = new FXMLLoader(Main.class.getResource("/de/hitec/nhplus/login/LoginView.fxml"));
@@ -55,12 +63,10 @@ public class Main extends Application {
             controller.initialize(loginStage);
 
             loginStage.showAndWait();
-
+            return controller.user;
-            if(controller.user != null){
-                executeMainApplication(controller.user);
-            }
         } catch (IOException exception) {
             exception.printStackTrace();
+            return null;
         }
     }
 

src/main/java/de/hitec/nhplus/fixtures/UserFixture.java

@@ -13,6 +13,11 @@ import java.sql.Connection;
 import java.sql.SQLException;
 import java.util.*;
 
+/**
+ * {@link Fixture} for {@link User}.
+ *
+ * @author Dominik Säume
+ */
 public class UserFixture implements Fixture<User> {
     private static final String SCHEMA = "/de/hitec/nhplus/login/database/User.sql";
     private static final String PERMISSION_SCHEMA = "/de/hitec/nhplus/login/database/UserPermission.sql";

src/main/java/de/hitec/nhplus/login/LoginController.java

@@ -17,6 +17,11 @@ import java.security.NoSuchAlgorithmException;
 import java.sql.SQLException;
 import java.util.Arrays;
 
+/**
+ * Controller for handling the login of {@link User}s.
+ *
+ * @author Dominik Säume
+ */
 public class LoginController {
 
     public User user;
@@ -29,11 +34,18 @@ public class LoginController {
     private Stage stage;
     private int loginTries = 0;
 
-
+    /**
+     * JavaFX Initialization method that is called after the binding of all the fields.
+     *
+     * @param stage The {@link Stage}, so the modal can close itself, when finished.
+     */
     public void initialize(Stage stage) {
         this.stage = stage;
     }
 
+    /**
+     * Internal method to handle actions on wrong logins, like a shake, timout and total tries.
+     */
     private void handleWrongPasswordOrUsername() {
         loginTries++;
 

src/main/java/de/hitec/nhplus/login/Permissions.java

@@ -1,5 +1,11 @@
 package de.hitec.nhplus.login;
 
+/**
+ * A simple class holding the bitmasks for all permissions.
+ * This is a class instead of an enum, for ease of use.
+ *
+ * @author Dominiok Säume
+ */
 public class Permissions {
     public final static int EVERYBODY = 0b0;
     public final static int NURSE = 0b1;

src/main/java/de/hitec/nhplus/login/User.java

@@ -7,8 +7,13 @@ import java.security.MessageDigest;
 import java.security.NoSuchAlgorithmException;
 import java.security.SecureRandom;
 
-public class User {
 
+/**
+ * The model for a {@link User}.
+ *
+ * @author Dominik Säume
+ */
+public class User {
 
     private int id;
     private String username;
@@ -17,6 +22,10 @@ public class User {
     private int permissions = 0;
     private Nurse nurse;
 
+
+    /**
+     * This constructor allows instantiating a {@link User} object with all existing fields.
+     */
     public User(
             int id,
             String username,
@@ -33,6 +42,9 @@ public class User {
         this.nurse = nurse;
     }
 
+    /**
+     * This constructor allows instantiating a {@link User} object.
+     */
     public User(
             String username,
             int permissions,
@@ -42,6 +54,12 @@ public class User {
         this.permissions = permissions;
         this.nurse = nurse;
     }
+
+    /**
+     * Sets the {@link User} password. The {@link User} will need to be manually stored with the
+     * {@link de.hitec.nhplus.login.database.UserDao UserDao}, for changes to persists.
+     * @param password The new Password
+     */
     public void setPassword(String password) {
         try {
             SecureRandom random = new SecureRandom();
@@ -59,6 +77,7 @@ public class User {
     public boolean hasNursePermissions(){
         return (permissions & Permissions.NURSE) != 0;
     }
+
     public boolean hasAdminPermissions(){
         return (permissions & Permissions.MANAGEMENT) != 0;
     }

src/main/java/de/hitec/nhplus/login/database/UserDao.java

@@ -12,6 +12,12 @@ import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.List;
 
+/**
+ * The {@link UserDao} is an implementation of the{@link de.hitec.nhplus.datastorage.Dao Dao}
+ * for the {@link User} model.
+ *
+ * @author Dominik Säume
+ */
 public class UserDao implements Dao<User> {
     protected final Connection connection;
 
@@ -19,6 +25,11 @@ public class UserDao implements Dao<User> {
         this.connection = connection;
     }
 
+    /**
+     * Try reading a {@link User#id} by its {@link User#username}.
+     * @param username The {@link User#username username} to try reading the {@link User#id id} of.
+     * @return The {@link User#id}. {@code 0} if the {@link User} doesn't exist.
+     */
     public int readUserId(String username) throws SQLException {
         final String SQL = "SELECT id FROM user WHERE username = ?";
         PreparedStatement statement = this.connection.prepareStatement(SQL);
@@ -26,6 +37,11 @@ public class UserDao implements Dao<User> {
         return statement.executeQuery().getInt(1);
     }
 
+    /**
+     * Read a {@link User}s {@link User#passwordSalt password salt}.
+     * @param id The {@link User#id} of which the {@link User#passwordSalt password salt} should be read.
+     * @return The {@link User#passwordSalt password salt} as a{@code byte[]}.
+     */
     public byte[] readPasswordSalt(int id) throws SQLException {
         final String SQL = "SELECT passwordSalt FROM user WHERE id = ?";
         PreparedStatement statement = this.connection.prepareStatement(SQL);
@@ -33,6 +49,11 @@ public class UserDao implements Dao<User> {
         return statement.executeQuery().getBytes(1);
     }
 
+    /**
+     * Read a {@link User}s {@link User#passwordHash password hash} for authentication purposes.
+     * @param id The {@link User#id} of which the {@link User#passwordHash password hash} should be read.
+     * @return The {@link User#passwordHash password hash} as a{@code byte[]}.
+     */
     public byte[] readPasswordHash(int id) throws SQLException {
         final String SQL = "SELECT passwordHash FROM user WHERE id = ?";
         PreparedStatement statement = this.connection.prepareStatement(SQL);

src/main/java/de/hitec/nhplus/main/MainWindowController.java

@@ -14,10 +14,7 @@ import java.util.List;
 /**
  * Controller for the main window of the application, which holds all tabs.
  *
- * @author Bernd Heidemann
  * @author Dominik Säume
- * @author Armin Ribic
- * @author Dorian Nemec
  */
 public class MainWindowController {
     private static MainWindowController instace;
@@ -30,14 +27,13 @@ public class MainWindowController {
         instace = this;
     }
 
+    /**
+     * Method copying the idea of a singleton, to allow getting the current {@link User}.
+     */
     public static MainWindowController getInstance() {
         return instace;
     }
 
-    public User getUser() {
-        return user;
-    }
-
     /**
      * JavaFX Initialization method that is called after the binding of all the fields.
      *
@@ -95,4 +91,8 @@ public class MainWindowController {
         mainTabPane.getSelectionModel().select(defaultTab);
         defaultTab.getOnSelectionChanged().handle(new Event(Event.ANY));
     }
+
+    public User getUser() {
+        return user;
+    }
 }

src/main/java/de/hitec/nhplus/nurse/Nurse.java

@@ -44,7 +44,7 @@ public class Nurse extends Person {
 
     /**
      * This constructor allows instantiating a {@link Nurse} object with
-     * specifying if the nurse is locked or not.
+     * specifying whether the {@link Nurse} is locked or not.
      */
     public Nurse(
             String firstName,

src/main/java/de/hitec/nhplus/utils/tab/TabManager.java

@@ -15,6 +15,12 @@ import java.io.IOException;
 import java.util.List;
 import java.util.Objects;
 
+/**
+ * A utility class to construct {@link Tab}s from views. This also supports sub {@link Tab}s.
+ *
+ * @author Dominiok Säume
+ * @see TabManager
+ */
 public class TabManager {
     private final User user;
 
@@ -22,11 +28,21 @@ public class TabManager {
         this.user = user;
     }
 
+    /**
+     * Internal method to check permissions
+     * @param requiredPermissions The permissions the {@link User} requires.
+     * @param permissions The permissions the {@link User} has.
+     */
     private boolean hasPermissions(int requiredPermissions, int permissions) {
         return requiredPermissions == Permissions.EVERYBODY
                || (permissions & requiredPermissions) != 0;
     }
 
+    /**
+     * Method to set up a single tab and register it to its {@link TabPane}.
+     * @param tabPane The {@link TabPane} to register to.
+     * @param tabStruct The data needed to construct the new tab.
+     */
     public void setupTab(TabPane tabPane, TabStruct tabStruct) {
         if (!hasPermissions(tabStruct.requiredPermissions, user.getPermissions())) {
             return;
@@ -39,6 +55,11 @@ public class TabManager {
         tabPane.getTabs().add(tab);
     }
 
+    /**
+     * {@link EventHandler} to handle the loading of a {@link Tab}.
+     * @param tabStruct The {@link TabStruct} holding the path of the view.
+     * @param pane The main pane of the {@link Tab}.
+     */
     private EventHandler<Event> loadTabEventHandler(TabStruct tabStruct, AnchorPane pane) {
         return event -> {
             try {
@@ -56,6 +77,13 @@ public class TabManager {
         };
     }
 
+    /**
+     * Method to set up a sub tab and register it to its parent {@link TabPane}.
+     * @param parentTabPane The {@link TabPane} to register to.
+     * @param title The title of the {@link Tab}.
+     * @param requiredPermissions The permissions required to see the sub {@link Tab}.
+     * @param subTabs A {@link List} of {@link TabStruct}s to create in the sub {@link Tab}.
+     */
     public void setupSubTabPane(TabPane parentTabPane, String title, int requiredPermissions, List<TabStruct> subTabs) {
         if (!hasPermissions(requiredPermissions, user.getPermissions())) {
             return;
@@ -73,6 +101,10 @@ public class TabManager {
         parentTabPane.getTabs().add(tab);
     }
 
+    /**
+     * {@link EventHandler} to handle the loading of a sub {@link TabPane}.
+     * @param tabPane The {@link TabPane} of the sub {@link Tab} to handle loading.
+     */
     private EventHandler<Event> loadSubTabPaneEventHandler(TabPane tabPane) {
         return event -> {
             Tab tab = tabPane.getSelectionModel().getSelectedItem();

src/main/java/de/hitec/nhplus/utils/tab/TabStruct.java

@@ -1,5 +1,11 @@
 package de.hitec.nhplus.utils.tab;
 
+/**
+ * A simple class holding the data needed for constructing a {@link javafx.scene.control.Tab Tab}.
+ *
+ * @author Dominiok Säume
+ * @see TabManager
+ */
 public class TabStruct {
     public String title;
     public String view;