Update through the app

src/de/marcelkapfer/c/morseconverter/Main.form

@@ -99,14 +99,33 @@
               </scrollpane>
             </children>
           </grid>
-          <grid id="4a85e" layout-manager="GridLayoutManager" row-count="1" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+          <grid id="4a85e" layout-manager="GridLayoutManager" row-count="2" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
             <margin top="0" left="0" bottom="0" right="0"/>
             <constraints>
               <tabbedpane title="About"/>
             </constraints>
             <properties/>
             <border type="none"/>
-            <children/>
+            <children>
+              <component id="fadb2" class="javax.swing.JButton" binding="updateDialogButton" default-binding="true">
+                <constraints>
+                  <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="Update Dialog"/>
+                </properties>
+              </component>
+              <hspacer id="f1f0d">
+                <constraints>
+                  <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+              </hspacer>
+              <vspacer id="44230">
+                <constraints>
+                  <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+                </constraints>
+              </vspacer>
+            </children>
           </grid>
         </children>
       </tabbedpane>

src/de/marcelkapfer/c/morseconverter/Main.java

@@ -27,19 +27,20 @@ import de.marcelkapfer.c.morseconverter.engine.EncodeNormalMorseManager;
 import de.marcelkapfer.c.morseconverter.engine.EncodeWrittenMorseManager;
 import de.marcelkapfer.c.morseconverter.intelligentCodeRecognization.NormalMorseCodeRecognization;
 import de.marcelkapfer.c.morseconverter.intelligentCodeRecognization.WrittenMorseCodeRecognization;
+import de.marcelkapfer.c.morseconverter.update.Update;
+import de.marcelkapfer.c.morseconverter.update.UpdateDialog;
 
 import javax.swing.*;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
 import java.awt.event.KeyAdapter;
 import java.awt.event.KeyEvent;
-import java.io.*;
-import java.net.MalformedURLException;
-import java.net.URL;
 
 public class Main extends JFrame {
 
     // Version numbers for update check
-    public static final int actualVersion = 200;
+    public static final int currentVersion = 200;
-    public int latestVersion = actualVersion;
+    public int latestVersion = currentVersion;
 
     public JTabbedPane morseConverterPane;
     private JPanel panel1;
@@ -47,6 +48,7 @@ public class Main extends JFrame {
     private JTextArea outputAreaWrittenMorse;
     private JTextArea inputAreaNormalMorse;
     private JTextArea outputAreaNormalMorse;
+    private JButton updateDialogButton;
 
     // Contains mainly listeners
     public Main() {
@@ -66,24 +68,22 @@ public class Main extends JFrame {
         });
 
         // Trying to read a file from a server
-        try {
+        latestVersion = Update.getLatestVersion("http://c2/LAB/java/morseconverter/version.txt", currentVersion);
-            URL versionURL = new URL("http://c2/LAB/java/morseconverter/version.txt");
-            BufferedReader versionReader = new BufferedReader(new InputStreamReader(versionURL.openStream()));
-            latestVersion = Integer.valueOf(versionReader.readLine());
-        } catch (MalformedURLException e) {
-            e.printStackTrace();
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
 
 
         //TODO To be also shown in the about view
-        if (actualVersion < latestVersion){
+        if (currentVersion < latestVersion){
             JOptionPane.showMessageDialog(null, "An Update is available!");
         }
 
-    }
+        updateDialogButton.addActionListener(new ActionListener() {
+            @Override
+            public void actionPerformed(ActionEvent e) {
+                updateDialog();
+            }
 
+        });
+    }
     // The holy main method
     public static void main(String[] args){
         // Tries to present the app in an native look
@@ -133,4 +133,8 @@ public class Main extends JFrame {
         }
     }
 
+    private void updateDialog() {
+        UpdateDialog.main(null);
+    }
+
 }

src/de/marcelkapfer/c/morseconverter/update/Update.java

@@ -0,0 +1,75 @@
+package de.marcelkapfer.c.morseconverter.update;
+
+import java.io.BufferedReader;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStreamReader;
+import java.net.MalformedURLException;
+import java.net.URL;
+import java.nio.channels.Channels;
+import java.nio.channels.ReadableByteChannel;
+import java.nio.file.Files;
+import java.util.logging.FileHandler;
+
+/*
+    This is a Java application for converting writtenMorse and normal morse code.
+    Copyright (C) 2014-2015  Marcel Michael Kapfer
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    any later version.
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+    Marcel Michael Kapfer
+    marcelmichaelkapfer@yahoo.co.nz
+
+ */
+public class Update {
+
+    private static URL update;
+
+    public static boolean isConnected(String url){
+        try {
+            update = new URL(url);
+            update.openStream();
+            return true;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    public static boolean update(String path, String filename){
+        try {
+            ReadableByteChannel updateChannel = Channels.newChannel(update.openStream());
+            FileOutputStream updateOutputStream = new FileOutputStream(path + filename);
+            updateOutputStream.getChannel().transferFrom(updateChannel, 0, Long.MAX_VALUE);
+            return true;
+        } catch (Exception e) {
+            e.printStackTrace();
+            return false;
+        }
+    }
+
+    public static int getLatestVersion(String versionFile, int currentVersion){
+        int latestVersion = currentVersion;
+        try {
+            URL versionURL = new URL(versionFile);
+            BufferedReader versionReader = new BufferedReader(new InputStreamReader(versionURL.openStream()));
+            latestVersion = Integer.valueOf(versionReader.readLine());
+        } catch (MalformedURLException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return latestVersion;
+    }
+
+}

src/de/marcelkapfer/c/morseconverter/update/UpdateDialog.form

@@ -0,0 +1,80 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="de.marcelkapfer.c.morseconverter.update.UpdateDialog">
+  <grid id="cbd77" binding="contentPane" layout-manager="GridLayoutManager" row-count="2" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+    <margin top="10" left="10" bottom="10" right="10"/>
+    <constraints>
+      <xy x="48" y="54" width="551" height="297"/>
+    </constraints>
+    <properties/>
+    <border type="none"/>
+    <children>
+      <grid id="94766" layout-manager="GridLayoutManager" row-count="1" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+        <margin top="0" left="0" bottom="0" right="0"/>
+        <constraints>
+          <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="1" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children>
+          <hspacer id="98af6">
+            <constraints>
+              <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="1" hsize-policy="6" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+            </constraints>
+          </hspacer>
+          <grid id="9538f" layout-manager="GridLayoutManager" row-count="1" column-count="2" same-size-horizontally="true" same-size-vertically="false" hgap="-1" vgap="-1">
+            <margin top="0" left="0" bottom="0" right="0"/>
+            <constraints>
+              <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties/>
+            <border type="none"/>
+            <children>
+              <component id="e7465" class="javax.swing.JButton" binding="buttonOK">
+                <constraints>
+                  <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="Yes"/>
+                </properties>
+              </component>
+              <component id="5723f" class="javax.swing.JButton" binding="buttonCancel">
+                <constraints>
+                  <grid row="0" column="1" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="0" fill="1" indent="0" use-parent-layout="false"/>
+                </constraints>
+                <properties>
+                  <text value="No"/>
+                </properties>
+              </component>
+            </children>
+          </grid>
+        </children>
+      </grid>
+      <grid id="e3588" layout-manager="GridLayoutManager" row-count="2" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+        <margin top="0" left="0" bottom="0" right="0"/>
+        <constraints>
+          <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <border type="none"/>
+        <children>
+          <component id="4147a" class="javax.swing.JLabel">
+            <constraints>
+              <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="A new version of the Morse Converter is available."/>
+            </properties>
+          </component>
+          <component id="89f1c" class="javax.swing.JLabel">
+            <constraints>
+              <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="0" anchor="8" fill="0" indent="0" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Do you want to download and install it?"/>
+            </properties>
+          </component>
+        </children>
+      </grid>
+    </children>
+  </grid>
+</form>

src/de/marcelkapfer/c/morseconverter/update/UpdateDialog.java

@@ -0,0 +1,103 @@
+package de.marcelkapfer.c.morseconverter.update;
+
+/*
+    This is a Java application for converting writtenMorse and normal morse code.
+    Copyright (C) 2014-2015  Marcel Michael Kapfer
+
+    This program is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+    Marcel Michael Kapfer
+    marcelmichaelkapfer@yahoo.co.nz
+
+ */
+
+
+import de.marcelkapfer.c.morseconverter.Main;
+
+import javax.swing.*;
+import java.awt.event.*;
+import java.io.File;
+import java.net.URISyntaxException;
+import java.nio.file.Path;
+import java.nio.file.Paths;
+
+public class UpdateDialog extends JDialog {
+    private JPanel contentPane;
+    private JButton buttonOK;
+    private JButton buttonCancel;
+
+    public UpdateDialog() {
+        setContentPane(contentPane);
+        setModal(true);
+        getRootPane().setDefaultButton(buttonOK);
+
+        buttonOK.addActionListener(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                onOK();
+            }
+        });
+
+        buttonCancel.addActionListener(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                onCancel();
+            }
+        });
+
+        // call onCancel() when cross is clicked
+        setDefaultCloseOperation(DO_NOTHING_ON_CLOSE);
+        addWindowListener(new WindowAdapter() {
+            public void windowClosing(WindowEvent e) {
+                onCancel();
+            }
+        });
+
+        // call onCancel() on ESCAPE
+        contentPane.registerKeyboardAction(new ActionListener() {
+            public void actionPerformed(ActionEvent e) {
+                onCancel();
+            }
+        }, KeyStroke.getKeyStroke(KeyEvent.VK_ESCAPE, 0), JComponent.WHEN_ANCESTOR_OF_FOCUSED_COMPONENT);
+    }
+
+    private void onOK() {
+        // add your code here
+        try {
+            String path = Main.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath();
+            path = path.substring(0, path.lastIndexOf(File.separator));
+            if(Update.isConnected("http://c2/LAB/java/morseconverter/morseconverter-1.jar")){
+                if(Update.update(path +  File.separator, "morseconverter-1.jar")){
+                    JOptionPane.showMessageDialog(null, "Update successful. \n Please restart the software to activate.");
+                } else {
+                    JOptionPane.showMessageDialog(null, "Update not successful.");
+                }
+            } else {
+                JOptionPane.showMessageDialog(null, "The connection to the server was not possible. \n Try again later.");
+            }
+        } catch (URISyntaxException e) {
+            e.printStackTrace();
+            JOptionPane.showMessageDialog(null, "There was an error while getting the current directory.");
+        }
+        dispose();
+    }
+
+    private void onCancel() {
+        // add your code here if necessary
+        dispose();
+    }
+
+    public static void main(String[] args) {
+        UpdateDialog dialog = new UpdateDialog();
+        dialog.pack();
+        dialog.setVisible(true);
+    }
+}