Add connection to server

pom.xml

@@ -34,21 +34,33 @@
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-api</artifactId>
-            <version>5.7.1</version>
+            <version>5.8.1</version>
             <scope>test</scope>
         </dependency>
         <dependency>
             <groupId>org.junit.jupiter</groupId>
             <artifactId>junit-jupiter-engine</artifactId>
-            <version>5.7.1</version>
+            <version>5.8.1</version>
             <scope>test</scope>
         </dependency>
+        <dependency>
+            <groupId>org.jetbrains</groupId>
+            <artifactId>annotations</artifactId>
+            <version>22.0.0</version>
+        </dependency>
     </dependencies>
 
     <build>
+        <defaultGoal>package</defaultGoal>
         <sourceDirectory>src</sourceDirectory>
         <testSourceDirectory>src/test/</testSourceDirectory>
 
+        <resources>
+            <resource>
+                <targetPath>resources</targetPath>
+            </resource>
+        </resources>
+
         <plugins>
             <plugin>
                 <groupId>org.apache.maven.plugins</groupId>
@@ -73,6 +85,11 @@
                     </execution>
                 </executions>
             </plugin>
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-resources-plugin</artifactId>
+                <version>3.1.0</version>
+            </plugin>
         </plugins>
     </build>
 </project>

resources/connect_gui.fxml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+
+<?import javafx.geometry.*?>
+<?import javafx.scene.control.*?>
+<?import javafx.scene.layout.*?>
+<?import javafx.scene.text.*?>
+
+<VBox alignment="CENTER" maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity"
+      prefHeight="400.0" prefWidth="600.0" xmlns="http://javafx.com/javafx/11.0.2" xmlns:fx="http://javafx.com/fxml/1"
+      fx:controller="fr.univ.lyon1.gui.controller.ConnectGuiController">
+   <Label text="Connexion">
+      <font>
+         <Font name="System Bold" size="18.0"/>
+      </font>
+   </Label>
+   <StackPane prefHeight="10.0" prefWidth="200.0"/>
+   <HBox alignment="CENTER" prefHeight="50.0" prefWidth="200.0">
+      <Label text="Adresse :"/>
+      <TextField fx:id="addressTextField">
+         <HBox.margin>
+            <Insets left="10.0"/>
+         </HBox.margin>
+      </TextField>
+   </HBox>
+   <HBox alignment="CENTER" layoutX="10.0" layoutY="174.0" prefHeight="50.0" prefWidth="200.0">
+      <Label text="Port :"/>
+      <TextField fx:id="portTextField">
+         <HBox.margin>
+            <Insets left="10.0"/>
+         </HBox.margin>
+      </TextField>
+   </HBox>
+   <Button mnemonicParsing="false" text="Se connecter" onAction="#connect" fx:id="connectButton">
+      <VBox.margin>
+         <Insets top="20.0"/>
+      </VBox.margin>
+   </Button>
+</VBox>

src/fr/univ/lyon1/gui/ClientPanel.java

@@ -12,15 +12,13 @@ import javafx.scene.text.Text;
 import javafx.scene.text.TextFlow;
 
 public class ClientPanel extends Parent {
-    private TextArea textToSend = new TextArea();
+    private final TextArea textToSend = new TextArea();
-    private ScrollPane scrollReceivedText = new ScrollPane();
+    private final TextFlow receivedText = new TextFlow();
-    private TextFlow receivedText = new TextFlow();
-    private Button sendBtn = new Button();
-    private Button clearBtn = new Button();
     private final MainGui gui;
 
     ClientPanel(MainGui gui) {
         this.gui = gui;
+        ScrollPane scrollReceivedText = new ScrollPane();
         scrollReceivedText.setLayoutX(20);
         scrollReceivedText.setLayoutY(20);
         scrollReceivedText.setPrefWidth(400);
@@ -29,13 +27,14 @@ public class ClientPanel extends Parent {
         scrollReceivedText.vvalueProperty().bind(receivedText.heightProperty());
         this.getChildren().add(scrollReceivedText);
 
+        Button sendBtn = new Button();
         sendBtn.setPrefWidth(80);
 
         int btnMargin = 20;
 
         textToSend.setLayoutX(scrollReceivedText.getLayoutX());
         textToSend.setLayoutY(scrollReceivedText.getLayoutY() + scrollReceivedText.getPrefHeight() + 20);
-        textToSend.setPrefWidth(400-sendBtn.getPrefWidth()-btnMargin);
+        textToSend.setPrefWidth(400- sendBtn.getPrefWidth()-btnMargin);
         textToSend.setPrefHeight(100);
         this.getChildren().add(textToSend);
         textToSend.setOnKeyPressed(this::textToSendKeyPressed);
@@ -49,6 +48,7 @@ public class ClientPanel extends Parent {
         this.getChildren().add(sendBtn);
         sendBtn.setOnAction(this::sendBtnAction);
 
+        Button clearBtn = new Button();
         clearBtn.setText("Clear");
         clearBtn.setLayoutX(sendBtn.getLayoutX());
         clearBtn.setPrefWidth(sendBtn.getPrefWidth());

src/fr/univ/lyon1/gui/MainGui.java

@@ -1,22 +1,47 @@
 package fr.univ.lyon1.gui;
 
 import javafx.application.Application;
+import javafx.fxml.FXMLLoader;
 import javafx.scene.Group;
 import javafx.scene.Scene;
 import javafx.stage.Stage;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
 
 import java.util.List;
 
 public class MainGui extends Application {
     private ClientPanel clientPanel;
+    @Nullable
     private ClientGUI client;
 
     @Override
-    public void start(Stage stage) throws Exception {
+    public void start(Stage stage) {
-        List<String> parameters = this.getParameters().getUnnamed();
+        try {
+            @NotNull
+            final List<String> parameters = this.getParameters().getUnnamed();
+
+            if (parameters.size() != 2) {
+                // TODO: Error
+                System.out.println("Error");
+
+                FXMLLoader fxmlLoader = new FXMLLoader(ClassLoader.getSystemClassLoader().getResource("connect_gui.fxml"));
+                Scene scene = new Scene(fxmlLoader.load(), 320, 240);
+                // stage.getIcons().add(new Image(Objects.requireNonNull(HelloApplication.class.getResourceAsStream("icon.jpg"))));
+                stage.setTitle("Hello!");
+                stage.setScene(scene);
+                stage.show();
+                return;
+            } else {
                 client = new ClientGUI(this, parameters.get(0), Integer.parseInt(parameters.get(1)));
                 //ToDo: error management especially for bad server IP/port
                 //ToDo: Server IP/port enter by user on the GUI
+            }
+        } catch (Exception exception) {
+            System.out.println(exception.getMessage());
+            exception.printStackTrace();
+            return;
+        }
 
         stage.setTitle("Chat client");
         stage.setWidth(440);
@@ -28,16 +53,21 @@ public class MainGui extends Application {
 
         stage.setScene(scene);
         stage.show();
+
+        if (client != null) {
             client.run();
         }
+    }
 
     public static void main(String[] args) {
         Application.launch(MainGui.class, args);
     }
 
     public void sendMessage(String msg) {
+        if (client != null) {
             client.sendMessage(msg);
         }
+    }
 
     public void receiveMessage(String msg) {
         clientPanel.addMessage(msg);

src/fr/univ/lyon1/gui/controller/ConnectGuiController.java

@@ -0,0 +1,82 @@
+package fr.univ.lyon1.gui.controller;
+
+import javafx.event.ActionEvent;
+import javafx.scene.control.Alert;
+import javafx.scene.control.Button;
+import javafx.scene.control.TextField;
+import org.jetbrains.annotations.NotNull;
+
+import java.io.IOException;
+import java.net.Socket;
+
+public class ConnectGuiController {
+    public TextField addressTextField;
+    public TextField portTextField;
+    public Button connectButton;
+
+    /**
+     * Called by submit button in resources/connect_gui.fxml
+     * @param actionEvent Action Event
+     */
+    public void connect(ActionEvent actionEvent) {
+        this.connectButton.setDisable(true);
+
+        @NotNull
+        final String address = this.addressTextField.getText();
+        @NotNull
+        final String port = this.portTextField.getText();
+
+        System.out.println("Checking if port is valid...");
+        // Check if the port is a number and if it's an available port
+        if (this.isNumber(port) && this.isAvailablePort(Integer.parseInt(port))) {
+            final int iPort = Integer.parseInt(port);
+            System.out.println("Port valid, next step...");
+            System.out.println("Checking if connection is available...");
+
+            // Check if the connection is available
+            if (this.isAccessible(address, iPort)) {
+
+            } else {
+                System.out.println("Connection not available");
+                this.showDialog("Erreur de connexion", "Impossible de se connecter au serveur, veuillez vérifier les informations saisies");
+                this.connectButton.setDisable(false);
+            }
+        } else {
+            this.showDialog("Erreur", "Veuillez saisir un numéro de port valide");
+            this.connectButton.setDisable(false);
+        }
+    }
+
+    private void showDialog(String title, String description) {
+        @NotNull
+        final Alert alert = new Alert(Alert.AlertType.WARNING);
+        alert.setTitle(title);
+        alert.setContentText(description);
+        alert.show();
+    }
+
+    private boolean isNumber(String text) {
+        try {
+            Integer.parseInt(text);
+            return true;
+        } catch (NumberFormatException ignored) {
+            return false;
+        }
+    }
+
+    private boolean isAvailablePort(int port) {
+        return !(port < 0 || port > 0xFFFF);
+    }
+
+    private boolean isAccessible(String address, int port) {
+        try {
+            @NotNull
+            final Socket socket = new Socket(address, port);
+            socket.setSoTimeout(5 * 1000);
+
+            return true;
+        } catch (IOException exception) {
+            return false;
+        }
+    }
+}

src/module-info.java

@@ -1,9 +1,13 @@
-module fr.univ.lyon1.gui {
+module fr.univ.lyon {
     requires javafx.controls;
     requires javafx.fxml;
 
     requires org.kordamp.bootstrapfx.core;
+    requires org.jetbrains.annotations;
 
     opens fr.univ.lyon1.gui to javafx.fxml;
+
+    exports fr.univ.lyon1.common;
     exports fr.univ.lyon1.gui;
+    exports fr.univ.lyon1.gui.controller;
 }