Lab3/src/main/java/org/lumijiez/Main.java

@@ -1,19 +1,18 @@
 package org.lumijiez;
 
-// Press Shift twice to open the Search Everywhere dialog and type `show whitespaces`,
+import org.lumijiez.gui.MainFrame;
-// then press Enter. You can now see whitespace characters in your code.
+
+import javax.swing.*;
+import java.io.IOException;
+
 public class Main {
     public static void main(String[] args) {
-        // Press Alt+Enter with your caret at the highlighted text to see how
+        SwingUtilities.invokeLater(() -> {
-        // IntelliJ IDEA suggests fixing it.
+            try {
-        System.out.print("Hello and welcome!");
+                new MainFrame().setVisible(true);
-
+            } catch (IOException e) {
-        // Press Shift+F10 or click the green arrow button in the gutter to run the code.
+                throw new RuntimeException(e);
-        for (int i = 1; i <= 5; i++) {
-
-            // Press Shift+F9 to start debugging your code. We have set one breakpoint
-            // for you, but you can always add more by pressing Ctrl+F8.
-            System.out.println("i = " + i);
             }
+        });
     }
 }

Lab3/src/main/java/org/lumijiez/gui/MainFrame.java

@@ -0,0 +1,128 @@
+package org.lumijiez.gui;
+import org.lumijiez.tracker.TrackerThread;
+
+import javax.swing.*;
+import java.awt.*;
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Path;
+import java.util.*;
+
+public class MainFrame extends JFrame {
+    private final JScrollPane fileListScrollPane = new JScrollPane();
+    private final JList<String> fileList = new JList<>();
+    private final JLabel pathLabel = new JLabel();
+    private final JScrollPane mainScrollPane = new JScrollPane();
+    private final JTextPane mainTextPane = new JTextPane();
+    private final JLabel snapshotLabel = new JLabel();
+    private final JButton CommitButton = new JButton();
+    private final JButton StatusButton = new JButton();
+    private final JMenuBar MainMenubar = new JMenuBar();
+    private final JMenu fileMenu = new JMenu();
+    private final JMenuItem pickFolder = new JMenuItem();
+    private final JMenu settingsMenu = new JMenu();
+    private final JMenuItem settings = new JMenuItem();
+    private final Map<File, byte[]> fileContents = new HashMap<>();
+    private TrackerThread tracker;
+
+    public MainFrame() throws IOException {
+        initComponents();
+    }
+
+    private void initComponents() {
+
+        mainTextPane.setContentType("text/html");
+
+        JFileChooser folderChooser = new JFileChooser();
+        folderChooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
+
+        setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
+
+        int returnVal = folderChooser.showOpenDialog(this);
+        if (returnVal == JFileChooser.APPROVE_OPTION) {
+            tracker = new TrackerThread(mainTextPane, Path.of(folderChooser.getSelectedFile().getAbsolutePath()), fileContents, fileList);
+            tracker.start();
+        }
+
+        fileList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
+        fileListScrollPane.setViewportView(fileList);
+
+        snapshotLabel.setFont(new java.awt.Font("Trebuchet MS", Font.PLAIN, 18)); // NOI18N
+        snapshotLabel.setText("Last snapshot: " + new Date());
+
+        mainScrollPane.setViewportView(mainTextPane);
+
+        pathLabel.setFont(new java.awt.Font("Trebuchet MS", Font.PLAIN, 18)); // NOI18N
+        pathLabel.setText("Currently tracking: " + folderChooser.getSelectedFile().getAbsolutePath());
+
+        CommitButton.setText("Commit");
+        CommitButton.addActionListener(this::CommitButtonActionPerformed);
+
+        StatusButton.setText("Status");
+        StatusButton.addActionListener(this::StatusButtonActionPerformed);
+
+        fileMenu.setText("File");
+
+        pickFolder.setText("Pick another folder");
+        fileMenu.add(pickFolder);
+
+        MainMenubar.add(fileMenu);
+
+        settingsMenu.setText("Edit");
+
+        settings.setText("Settings");
+        settingsMenu.add(settings);
+
+        MainMenubar.add(settingsMenu);
+
+        setJMenuBar(MainMenubar);
+
+        GroupLayout layout = new GroupLayout(getContentPane());
+        getContentPane().setLayout(layout);
+        layout.setHorizontalGroup(
+                layout.createParallelGroup(GroupLayout.Alignment.LEADING)
+                        .addGroup(layout.createSequentialGroup()
+                                .addContainerGap()
+                                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
+                                        .addComponent(pathLabel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+                                        .addComponent(snapshotLabel, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+                                        .addGroup(layout.createSequentialGroup()
+                                                .addComponent(fileListScrollPane, GroupLayout.PREFERRED_SIZE, 195, GroupLayout.PREFERRED_SIZE)
+                                                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
+                                                .addComponent(mainScrollPane, GroupLayout.PREFERRED_SIZE, 599, GroupLayout.PREFERRED_SIZE)
+                                                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
+                                                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
+                                                        .addGroup(layout.createSequentialGroup()
+                                                                .addComponent(CommitButton)
+                                                                .addGap(0, 1, Short.MAX_VALUE))
+                                                        .addComponent(StatusButton, GroupLayout.DEFAULT_SIZE, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))))
+                                .addContainerGap())
+        );
+        layout.setVerticalGroup(
+                layout.createParallelGroup(GroupLayout.Alignment.LEADING)
+                        .addGroup(GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
+                                .addComponent(snapshotLabel, GroupLayout.PREFERRED_SIZE, 28, GroupLayout.PREFERRED_SIZE)
+                                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED, GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
+                                .addComponent(pathLabel, GroupLayout.PREFERRED_SIZE, 28, GroupLayout.PREFERRED_SIZE)
+                                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
+                                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
+                                        .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING, false)
+                                                .addComponent(fileListScrollPane, GroupLayout.DEFAULT_SIZE, 573, Short.MAX_VALUE)
+                                                .addComponent(mainScrollPane))
+                                        .addGroup(layout.createSequentialGroup()
+                                                .addComponent(CommitButton)
+                                                .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
+                                                .addComponent(StatusButton)))
+                                .addContainerGap()));
+        pack();
+    }
+
+    private void CommitButtonActionPerformed(java.awt.event.ActionEvent evt) {
+        tracker.reset();
+        mainTextPane.setText("");
+        snapshotLabel.setText("Last snapshot: " + new Date());
+    }
+
+    private void StatusButtonActionPerformed(java.awt.event.ActionEvent evt) {
+    }
+}

Lab3/src/main/java/org/lumijiez/tracker/TrackerThread.java

@@ -0,0 +1,100 @@
+package org.lumijiez.tracker;
+
+import org.lumijiez.util.DiffType;
+import org.lumijiez.util.FileDiffer;
+import org.lumijiez.util.StateType;
+
+import javax.swing.*;
+import java.io.File;
+import java.nio.file.*;
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Map;
+
+public class TrackerThread extends Thread {
+    private final JTextPane textPane;
+    private final Path path;
+    private Map<File, byte[]> fileContents;
+    private final JList<String> fileList;
+    private final Map<File, StateType> fileStates = new HashMap<>();
+
+    public TrackerThread(JTextPane textPane, Path path, Map<File, byte[]> files, JList<String> fileList) {
+        this.textPane = textPane;
+        this.path = path;
+        this.fileContents = files;
+        this.fileList = fileList;
+        init();
+    }
+
+    public void init() {
+        System.out.println("Init called");
+        fileContents = FileDiffer.crawlDirectory(path);
+
+        ArrayList<String> fileNames = new ArrayList<>();
+
+        for (File file : fileContents.keySet()) {
+            fileNames.add(file.getName());
+        }
+        fileList.setModel(new AbstractListModel<>() {
+            public int getSize() {
+                return fileNames.size();
+            }
+            public String getElementAt(int i) {
+                return fileNames.get(i);
+            }
+        });
+    }
+
+    public void reset() {
+        fileStates.clear();
+    }
+
+    public void checkDirectory() {
+        Map<DiffType, ArrayList<File>> result = FileDiffer.diff(fileContents, FileDiffer.crawlDirectory(path));
+
+        StringBuilder toShow = new StringBuilder();
+
+        boolean created = false, deleted = false, modified = false;
+        if (!result.get(DiffType.CREATE).isEmpty()) {
+            created = true;
+            for (File file : result.get(DiffType.CREATE)) {
+                fileStates.put(file, StateType.NEW);
+            }
+            System.out.println("Created");
+        }
+
+        if (!result.get(DiffType.DELETE).isEmpty()) {
+            deleted = true;
+            for (File file : result.get(DiffType.DELETE)) {
+                fileStates.put(file, StateType.DELETED);
+            }
+            System.out.println("Deleted");
+        }
+
+        if (!result.get(DiffType.MODIFY).isEmpty()) {
+            modified = true;
+            for (File file : result.get(DiffType.MODIFY)) {
+                fileStates.put(file, StateType.MODIFIED);
+            }
+            System.out.println("Modified");
+        }
+
+        if (created || deleted || modified) {
+            init();
+            for (File file : fileStates.keySet()) {
+                if (fileStates.get(file) != StateType.NONE) {
+                    toShow.append(file.getName()).append(" has been ").append(fileStates.get(file).getName()).append("<br>");
+                }
+            }
+            textPane.setText(toShow.toString());
+        }
+    }
+
+    @Override
+    public void run() {
+        while(this.isAlive()) {
+            checkDirectory();
+            //Thread.sleep(200);
+        }
+    }
+}

Lab3/src/main/java/org/lumijiez/util/DiffType.java

@@ -0,0 +1,5 @@
+package org.lumijiez.util;
+
+public enum DiffType {
+    CREATE, DELETE, MODIFY, NONE
+}

Lab3/src/main/java/org/lumijiez/util/FileDiffer.java

@@ -0,0 +1,61 @@
+package org.lumijiez.util;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.Path;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.stream.Stream;
+
+public class FileDiffer {
+    public static Map<DiffType, ArrayList<File>> diff(Map<File, byte[]> oldFiles, Map<File, byte[]> newFiles) {
+        Map<DiffType, ArrayList<File>> result = new HashMap<>();
+
+        ArrayList<File> newFileList = new ArrayList<>();
+        ArrayList<File> deletedFileList = new ArrayList<>();
+        ArrayList<File> modifiedFileList = new ArrayList<>();
+
+        for (File file : oldFiles.keySet()) {
+            if (newFiles.get(file) != null) {
+                if (Arrays.compare(oldFiles.get(file), newFiles.get(file)) != 0) {
+                    modifiedFileList.add(file);
+                }
+            } else {
+                deletedFileList.add(file);
+            }
+        }
+
+        for (File file : newFiles.keySet()) {
+            if (oldFiles.get(file) == null) {
+                newFileList.add(file);
+            }
+        }
+
+        result.put(DiffType.CREATE, newFileList);
+        result.put(DiffType.DELETE, deletedFileList);
+        result.put(DiffType.MODIFY, modifiedFileList);
+
+        return result;
+    }
+
+    public static Map<File, byte[]> crawlDirectory(Path path) {
+        Map<File, byte[]> newFileContents = new HashMap<>();
+        try (Stream<Path> paths = Files.walk(path)) {
+            paths.forEach(p -> {
+                if (Files.isRegularFile(p)) {
+                    try {
+                        newFileContents.put(p.toFile(), Files.readAllBytes(p));
+                    } catch (IOException e) {
+                        throw new RuntimeException(e);
+                    }
+                }
+            });
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return newFileContents;
+    }
+}

Lab3/src/main/java/org/lumijiez/util/StateType.java

@@ -0,0 +1,14 @@
+package org.lumijiez.util;
+
+public enum StateType {
+    NEW("Created"), MODIFIED("Modified"), DELETED("Deleted"), NONE("Nothing");
+
+    private final String name;
+    StateType(String name) {
+        this.name = name;
+    }
+
+    public String getName() {
+        return this.name;
+    }
+}