Implement back end for ul.cfg manager. Now it's ready. Fix incorrect CRC32 returning value issue (!).

pom.xml

@@ -8,7 +8,7 @@
     <name>Tihwin</name>
 
     <artifactId>Tihwin</artifactId>
-    <version>1.1</version>
+    <version>2.0</version>
 
     <url>https://github.com/developersu/${project.artifactId}/</url>
     <description>

src/main/java/tihwin/MainAppUi.java

@@ -82,7 +82,6 @@ public class MainAppUi extends JFrame {
         destinationDirectoryLbl.setText(FilesHelper.getRealFolder(Settings.INSTANCE.getDestination()));
 
         addWindowListener(getWindowListener());
-        new UpdateUlTableUi(new File(destinationDirectoryLbl.getText() + File.separator + "ul.cfg"));
     }
 
     private WindowListener getWindowListener() {
@@ -219,7 +218,7 @@ public class MainAppUi extends JFrame {
     }
 
     private void ulConfigButtonAction() {
-        new UpdateUlTableUi(new File(destinationDirectoryLbl.getText() + File.separator + "ul.cfg"));
+        new UpdateUlTableUi(destinationDirectoryLbl.getText());
     }
 
     {
@@ -266,11 +265,11 @@ public class MainAppUi extends JFrame {
         this.$$$loadLabelText$$$(label3, this.$$$getMessageFromBundle$$$("locale", "TitleLbl"));
         mainPanel.add(label3, cc.xy(5, 5));
         CDRadioButton = new JRadioButton();
-        CDRadioButton.setText("CD");
+        this.$$$loadButtonText$$$(CDRadioButton, this.$$$getMessageFromBundle$$$("locale", "CD"));
         mainPanel.add(CDRadioButton, cc.xy(1, 5));
         DVDRadioButton = new JRadioButton();
         DVDRadioButton.setSelected(true);
-        DVDRadioButton.setText("DVD");
+        this.$$$loadButtonText$$$(DVDRadioButton, this.$$$getMessageFromBundle$$$("locale", "DVD"));
         mainPanel.add(DVDRadioButton, cc.xy(3, 5));
         convertBtn = new JButton();
         convertBtn.setBackground(new Color(-2034433));

src/main/java/tihwin/UpdateUlTableUi.java

@@ -22,37 +22,38 @@ package tihwin;
 
 import com.jgoodies.forms.layout.CellConstraints;
 import com.jgoodies.forms.layout.FormLayout;
-import tihwin.ui.*;
 import tihwin.ui.ulupdater.*;
+import tihwin.ul.UlConfiguration;
+import tihwin.ul.UlServiceTools;
 
 import javax.swing.*;
 import javax.swing.border.MatteBorder;
 import javax.swing.table.DefaultTableColumnModel;
 import javax.swing.table.JTableHeader;
-import javax.swing.text.AbstractDocument;
 import java.awt.*;
 import java.io.File;
-import java.util.Objects;
+import java.util.*;
-import java.util.ResourceBundle;
+import java.util.List;
 
 public class UpdateUlTableUi extends JFrame {
     private JTable table;
     private UlTableModel model;
     private JButton saveChangesBtn;
 
-    private JLabel ulLocationLbl, statusLbl;
+    private final JLabel ulLocationLbl;
+    private JLabel statusLbl;
     private String recentRomLocation;
     private final ResourceBundle resourceBundle;
 
-    public UpdateUlTableUi(File ulCfgFile) {
+    public UpdateUlTableUi(String ulDestinationLocation) {
         super();
         this.resourceBundle = ResourceBundle.getBundle("locale");
-        setupUlLocationLbl();
+        this.ulLocationLbl = new JLabel(ulDestinationLocation);
         setupTable();
         setupSaveButton();
 
         FormLayout primaryPanelLayout = new FormLayout(
-                "75dlu, 4dlu, fill:pref:grow",
+                "80dlu, 2dlu, fill:pref:grow",
                 "fill:pref:grow, 25dlu:noGrow, 25dlu:noGrow, fill:pref:noGrow"
         );
         JPanel primaryPanel = new JPanel();
@@ -60,12 +61,16 @@ public class UpdateUlTableUi extends JFrame {
 
         primaryPanel.add(getScrollPane(), new CellConstraints(1, 1, 3, 1,
                 CellConstraints.DEFAULT, CellConstraints.DEFAULT, new Insets(0, 0, 0, 0)));
+
         primaryPanel.add(getSelectUlLocationButton(), new CellConstraints(1, 2, 1, 1,
-                CellConstraints.DEFAULT, CellConstraints.DEFAULT, new Insets(5, 5, 5, 5)));
+                CellConstraints.DEFAULT, CellConstraints.DEFAULT, new Insets(3, 3, 3, 3)));
+
         primaryPanel.add(ulLocationLbl, new CellConstraints(3, 2, 1, 1,
                 CellConstraints.DEFAULT, CellConstraints.DEFAULT, new Insets(0, 0, 0, 0)));
+
         primaryPanel.add(saveChangesBtn, new CellConstraints(1, 3, 3, 1,
-                CellConstraints.DEFAULT, CellConstraints.DEFAULT, new Insets(5, 5, 5, 5)));
+                CellConstraints.DEFAULT, CellConstraints.DEFAULT, new Insets(3, 3, 3, 3)));
+
         primaryPanel.add(getStatusPanel(), new CellConstraints(1, 4, 3, 1,
                 CellConstraints.DEFAULT, CellConstraints.DEFAULT, new Insets(0, 0, 0, 0)));
 
@@ -76,20 +81,16 @@ public class UpdateUlTableUi extends JFrame {
         Image img = new ImageIcon(Objects.requireNonNull(
                 MainAppUi.class.getClassLoader().getResource("tray_icon.gif"))).getImage();
         setIconImage(img);
-        setMinimumSize(new Dimension(800, 500));
+        setMinimumSize(new Dimension(800, 400));
         setVisible(true);
         setTitle(resourceBundle.getString("ulManager"));
-        System.out.println(ulCfgFile.getAbsolutePath());
+
-        this.recentRomLocation = ulCfgFile.getParent();
+        File ulCfgFile = new File(ulDestinationLocation + File.separator + "ul.cfg");
+        this.recentRomLocation = ulDestinationLocation;
         if (ulCfgFile.exists())
             showInTableUlCfgFile(ulCfgFile);
-        setAlwaysOnTop(true); // TODO:DELETE
-        //statusLbl.setText("TEST"); // TODO:DELETE
     }
 
-    private void setupUlLocationLbl(){
-        ulLocationLbl = new JLabel(Settings.INSTANCE.getDestination());
-    }
     private void setupSaveButton(){
         saveChangesBtn = new JButton(resourceBundle.getString("ulManagerWindow_SaveBtn"));
         saveChangesBtn.setBackground(Color.getHSBColor(0.5591398f, 0.12156863f, 1));
@@ -111,10 +112,6 @@ public class UpdateUlTableUi extends JFrame {
         UlTableColumnModel columnModel = new UlTableColumnModel((DefaultTableColumnModel) table.getColumnModel());
         table.setColumnModel(columnModel);
         table.setRowSelectionAllowed(false);
-
-        JTextField textField = new JTextField();
-        ((AbstractDocument) textField.getDocument()).setDocumentFilter(new TitleFieldFilter());
-        table.setDefaultEditor(JLabel.class, new DefaultCellEditor(textField));
     }
     private JScrollPane getScrollPane(){
         JScrollPane scrollPane = new JScrollPane(table);
@@ -137,34 +134,80 @@ public class UpdateUlTableUi extends JFrame {
     }
 
     private void showInTableUlCfgFile(File ulCfgFile){
-        for (int i=0; i<15; i++) {
+        try{
-            model.addRow(
+            if (ulCfgFile.length() < 64){
-                    new UlTableRow(table.getRowCount() + 1, i + "_lent Hi11 **atter** ***ories1", "NORG_000.00", 5, true));
+                statusLbl.setText(resourceBundle.getString("ulManagerWindow_EmptyOrIncorrectText")+" "+ulCfgFile.getAbsolutePath());
-            model.addRow(
+                return;
-                    new UlTableRow(table.getRowCount() + 1, "name"+i, "NORG_000.11", 5, false));
+            }
-            model.addRow(
-                    new UlTableRow(table.getRowCount() + 1, i+"name", "NORG_000.99", 5, true));
-        }
-        /*-*-*-*-*-*-*-*-**/
-        if (ulCfgFile.length() < 64){
-            statusLbl.setText(resourceBundle.getString("ulManagerWindow_EmptyOrIncorrectText")+" "+ulCfgFile.getAbsolutePath());
-            return;
-        }
-        System.out.println("IMPLMENET ME"); // TODO
 
-        saveChangesBtn.setEnabled(true);
+            model.clear();
-        statusLbl.setText(ulCfgFile.getAbsolutePath());
+
+            String ulCfgFileLocation = ulCfgFile.getParentFile().getAbsolutePath();
+
+            for (int i = 0; i < ulCfgFile.length()/64; i++) {
+                UlConfiguration ulConfiguration = new UlConfiguration(ulCfgFile, i);
+                boolean isConsistent = UlServiceTools.verifyChunksCount(ulCfgFileLocation, ulConfiguration);
+                model.addRow(new UlTableModelRecord(ulConfiguration, isConsistent));
+            }
+
+            saveChangesBtn.setEnabled(true);
+            statusLbl.setText(ulCfgFile.getAbsolutePath());
+        }
+        catch (Exception e){
+            statusLbl.setText(resourceBundle.getString("ulManagerWindow_EmptyOrIncorrectText")+" "+e.getMessage());
+            e.printStackTrace();
+        }
     }
 
     private void saveChangesAction(){
-        System.out.println("IMPLMENET ME"); // TODO
+        try{
+            String ulLocation = ulLocationLbl.getText();
+            
+            List<UlTableModelRecord> modelRecords = model.getInitialRows();
+            List<UlConfiguration> finalConfigurationSet = new ArrayList<>();
+            // Collect what we'll have in the final ul.cfg file
+            for (int i = 0; i < modelRecords.size(); i++){
+                UlConfiguration configuration = new UlConfiguration(
+                        model.getTitle(i),
+                        model.getPublisherTitle(i),
+                        model.getChunksCount(i),
+                        model.getCdDvd(i).equals("DVD")
+                );
+                finalConfigurationSet.add(configuration);
+            }
+            // Updating chunk file names if needed
+            for (int i = 0; i < modelRecords.size(); i++){
+                UlTableModelRecord initialRecord = modelRecords.get(i);
+                String initialRecordTitle = initialRecord.getConfiguration().getTitle();
+                if (initialRecord.isConsistent() && ! model.getTitle(i).equals(initialRecordTitle)){
+                    UlServiceTools.renameChunks(ulLocation,
+                            initialRecord.getConfiguration(),
+                            finalConfigurationSet.get(i));
+                }
+            }
+            // Remove chunks in case user removed record from the table
+            List<UlTableModelRecord> removedRows = model.getRemovedRows();
+            for (UlTableModelRecord removedRow : removedRows) {
+                UlServiceTools.removeChunks(ulLocation, removedRow.getConfiguration());
+            }
+            // Write new ul.cfg
+            UlServiceTools.writeUlCfgFile(ulLocation, finalConfigurationSet);
+            File ulCfgFile = new File(ulLocation+File.separator+"ul.cfg");
+            showInTableUlCfgFile(ulCfgFile);
+
+            statusLbl.setText(resourceBundle.getString("SuccessText"));
+        }
+        catch (Exception e){
+            statusLbl.setText(resourceBundle.getString("ulManagerWindow_SaveChangesFailureText")+" "+e.getMessage());
+            e.printStackTrace();
+        }
     }
 
     private void selectUlCfgAction(){
         try {
             JFileChooser fileChooser = new JFileChooser(FilesHelper.getRealFolder(recentRomLocation));
             fileChooser.setDialogTitle(resourceBundle.getString("ulManagerWindow_SelectUlCfgBtn"));
-            fileChooser.setFileFilter(new ulCfgFileFilter());
+            fileChooser.setFileFilter(new UlCfgFileFilter());
             if (fileChooser.showOpenDialog(null) == JFileChooser.APPROVE_OPTION) {
                 File file = fileChooser.getSelectedFile();
                 recentRomLocation = file.getParent();

src/main/java/tihwin/ui/TitleFieldFilter.java

@@ -25,13 +25,12 @@ import javax.swing.text.BadLocationException;
 import javax.swing.text.DocumentFilter;
 
 public class TitleFieldFilter extends DocumentFilter {
-    private final static int MAX_USER_DEFINED_GAME_TITLE_LENGTH = 31;
+    private final static int MAX_USER_DEFINED_GAME_TITLE_LENGTH = 32;
     public TitleFieldFilter() {}
 
     protected boolean isNotAscii(String str){
         if (str == null)
             return false;
-
         return ! str.matches("\\A\\p{ASCII}*\\z");
     }
 
@@ -40,7 +39,7 @@ public class TitleFieldFilter extends DocumentFilter {
         if (isNotAscii(str))
             return;
         int documentLength = fb.getDocument().getLength();
-        if ((documentLength + str.length()) <= MAX_USER_DEFINED_GAME_TITLE_LENGTH)
+        if ((documentLength + str.length()) < MAX_USER_DEFINED_GAME_TITLE_LENGTH)
             super.insertString(fb, offs, str, attr);
     }
 
@@ -49,7 +48,8 @@ public class TitleFieldFilter extends DocumentFilter {
         if (isNotAscii(str))
             return;
         int documentLength = fb.getDocument().getLength();
-        if ((documentLength + str.length() - length) <= MAX_USER_DEFINED_GAME_TITLE_LENGTH)
+        if ((documentLength + str.length() - length) < MAX_USER_DEFINED_GAME_TITLE_LENGTH)
             super.replace(fb, offs, length, str, attr);
     }
+
 }

src/main/java/tihwin/ui/ulupdater/UlButtonCellEditor.java

@@ -25,10 +25,6 @@ import javax.swing.table.TableCellEditor;
 import java.awt.*;
 
 public class UlButtonCellEditor extends AbstractCellEditor implements TableCellEditor {
-    public UlButtonCellEditor(){
-
-    }
-
     @Override
     public Object getCellEditorValue() {
         return null;
@@ -36,7 +32,6 @@ public class UlButtonCellEditor extends AbstractCellEditor implements TableCellE
 
     @Override
     public Component getTableCellEditorComponent(JTable table, Object value, boolean isSelected, int row, int column) {
-
         ((UlTableModel) table.getModel()).removeRow(row);
         return null;
     }

src/main/java/tihwin/ui/ulupdater/UlCdDvdCellEditor.java

@@ -21,12 +21,10 @@
 package tihwin.ui.ulupdater;
 
 import javax.swing.*;
-import java.util.ResourceBundle;
 
 public class UlCdDvdCellEditor extends DefaultCellEditor {
     static {
-        ResourceBundle bundle = ResourceBundle.getBundle("locale");
+        CD_DVD = new String[]{"CD", "DVD"};
-        CD_DVD = new String[]{bundle.getString("CD"), bundle.getString("DVD")};
     }
     private static final String[] CD_DVD;
 

src/main/java/tihwin/ui/ulupdater/UlCfgFileFilter.java

@@ -23,7 +23,7 @@ package tihwin.ui.ulupdater;
 import javax.swing.filechooser.FileFilter;
 import java.io.File;
 
-public class ulCfgFileFilter extends FileFilter {
+public class UlCfgFileFilter extends FileFilter {
     @Override
     public boolean accept(File file) {
         if (file.isDirectory())

src/main/java/tihwin/ui/ulupdater/UlTableColumnModel.java

@@ -20,9 +20,13 @@
  */
 package tihwin.ui.ulupdater;
 
+import tihwin.ui.TitleFieldFilter;
+
+import javax.swing.*;
 import javax.swing.event.TableColumnModelEvent;
 import javax.swing.table.DefaultTableColumnModel;
 import javax.swing.table.TableColumn;
+import javax.swing.text.AbstractDocument;
 import java.util.Enumeration;
 
 public class UlTableColumnModel extends DefaultTableColumnModel {
@@ -37,7 +41,8 @@ public class UlTableColumnModel extends DefaultTableColumnModel {
         getColumn(0).setMaxWidth(50);
 
         getColumn(1).setMinWidth(200);
-        getColumn(1).setPreferredWidth(225);
+        getColumn(1).setPreferredWidth(230);
+        getColumn(1).setMaxWidth(300);
 
         getColumn(2).setMinWidth(100);
         getColumn(2).setPreferredWidth(135);
@@ -51,6 +56,14 @@ public class UlTableColumnModel extends DefaultTableColumnModel {
         getColumn(4).setPreferredWidth(75);
         getColumn(4).setMaxWidth(100);
 
+        getColumn(5).setMinWidth(100);
+        getColumn(5).setPreferredWidth(135);
+        getColumn(5).setMaxWidth(150);
+
+        JTextField textField = new JTextField();
+        ((AbstractDocument) textField.getDocument()).setDocumentFilter(new TitleFieldFilter());
+        getColumn(1).setCellEditor(new DefaultCellEditor(textField));
+
         getColumn(4).setCellEditor(new UlCdDvdCellEditor());
 
         getColumn(5).setCellEditor(new UlButtonCellEditor());

src/main/java/tihwin/ui/ulupdater/UlTableModel.java

@@ -22,31 +22,53 @@ package tihwin.ui.ulupdater;
 
 import javax.swing.*;
 import javax.swing.table.DefaultTableModel;
+import java.util.ArrayList;
+import java.util.List;
 import java.util.ResourceBundle;
 
 public class UlTableModel extends DefaultTableModel {
     static {
         ResourceBundle bundle = ResourceBundle.getBundle("locale");
-        columns = new String[]{
+        COLUMNS = new String[]{
                 bundle.getString("ulManagerWindow_ColumnNameNumber"),
                 bundle.getString("ulManagerWindow_ColumnNameTitle"),
                 bundle.getString("ulManagerWindow_ColumnNamePublisherTitle"),
                 bundle.getString("ulManagerWindow_ColumnNameChunksCount"),
                 bundle.getString("ulManagerWindow_ColumnCdDvdFlag"),
+                "",
                 ""};
+        REMOVE_ME_BUTTON_TEXT = bundle.getString("ulManagerWindow_Row_RemoveRowBtn");
+        OK_STATUS = bundle.getString("Ok");
+        INCONSISTENT_STATUS = bundle.getString("ulManagerWindow_InconsistentFileText");
     }
-    private static final String[] columns;
+    private static final String[] COLUMNS;
 
-    private int rowsCount;
+    private static final String REMOVE_ME_BUTTON_TEXT;
+    
+    private static final String OK_STATUS;
+    private static final String INCONSISTENT_STATUS;
+
+    private final List<UlTableModelRecord> rows;
+    private final List<UlTableModelRecord> removedRows;
 
     public UlTableModel(){
         super();
-        super.setColumnIdentifiers(columns);
+        super.setColumnIdentifiers(COLUMNS);
+        this.rows = new ArrayList<>();
+        this.removedRows = new ArrayList<>();
     }
 
-    public void addRow(UlTableRow row){
+    public void addRow(UlTableModelRecord record){
-        super.addRow(row.getRow());
+        rows.add(record);
-        this.rowsCount++;
+        super.addRow(new Object[]{
+                rows.size(),
+                record.getConfiguration().getTitle(),
+                record.getConfiguration().getPublisherTitle(),
+                record.getConfiguration().getChunksCount(),
+                record.getConfiguration().isDvd()? "DVD" : "CD",
+                new JButton(REMOVE_ME_BUTTON_TEXT),
+                record.isConsistent()?OK_STATUS:INCONSISTENT_STATUS
+                });
     }
 
     @Override
@@ -70,9 +92,38 @@ public class UlTableModel extends DefaultTableModel {
 
     @Override
     public void removeRow(int row) {
+        removedRows.add(rows.get(row));
+        rows.remove(row);
         super.removeRow(row);
-        --rowsCount;
+        for (int i = row; i < rows.size(); i++)
-        for (int i = row; i < rowsCount; i++)
             setValueAt(i+1, i, 0);
     }
+
+    public void clear(){
+        for (int i = getRowCount()-1; i >= 0 ; i--)
+            super.removeRow(i);
+        rows.clear();
+        removedRows.clear();
+    }
+
+    public List<UlTableModelRecord> getInitialRows(){
+        return rows;
+    }
+
+    public List<UlTableModelRecord> getRemovedRows() {
+        return removedRows;
+    }
+
+    public String getTitle(int row){
+        return (String) getValueAt(row, 1);
+    }
+    public String getPublisherTitle(int row){
+        return (String) getValueAt(row, 2);
+    }
+    public byte getChunksCount(int row){
+        return (byte) getValueAt(row, 3);
+    }
+    public String getCdDvd(int row){
+        return (String) getValueAt(row, 4);
+    }
 }

src/main/java/tihwin/ui/ulupdater/UlTableModelRecord.java

@@ -0,0 +1,41 @@
+/*
+
+     Copyright "2022" Dmitry Isaenko
+
+     This file is part of Tihwin.
+
+     Tihwin 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.
+
+     Tihwin 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 Tihwin.  If not, see <https://www.gnu.org/licenses/>.
+
+ */
+package tihwin.ui.ulupdater;
+
+import tihwin.ul.UlConfiguration;
+
+public class UlTableModelRecord {
+    private final UlConfiguration configuration;
+    private final boolean isConsistent;
+
+    public UlTableModelRecord(UlConfiguration configuration, boolean isConsistent){
+        this.configuration = configuration;
+        this.isConsistent = isConsistent;
+    }
+
+    public UlConfiguration getConfiguration() {
+        return configuration;
+    }
+
+    public boolean isConsistent() {
+        return isConsistent;
+    }
+}

src/main/java/tihwin/ui/ulupdater/UlTableRow.java

@@ -1,63 +0,0 @@
-/*
-
-     Copyright "2022" Dmitry Isaenko
-
-     This file is part of Tihwin.
-
-     Tihwin 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.
-
-     Tihwin 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 Tihwin.  If not, see <https://www.gnu.org/licenses/>.
-
- */
-package tihwin.ui.ulupdater;
-
-import javax.swing.*;
-import java.util.ResourceBundle;
-
-public class UlTableRow {
-    static {
-        ResourceBundle bundle = ResourceBundle.getBundle("locale");
-        REMOVE_ME_BUTTON_TEXT = bundle.getString("ulManagerWindow_Row_RemoveRowBtn");
-        CD_TEXT = bundle.getString("CD");
-        DVD_TEXT = bundle.getString("DVD");
-    }
-    private static final String REMOVE_ME_BUTTON_TEXT;
-    private static final String CD_TEXT;
-    private static final String DVD_TEXT;
-
-    private final int rowNumber;
-    private final String name;
-    private final String publisherTitle;
-    private final int chunksCount;
-    private final String cdDvdFlag;
-    private final JButton removeRowButton;
-
-    public UlTableRow(int rowNumber, String name, String publisherTitle, int chunksCount, boolean isDvd){
-        this.rowNumber = rowNumber;
-        this.name = name;
-        this.publisherTitle = publisherTitle;
-        this.chunksCount = chunksCount;
-        this.cdDvdFlag = isDvd? DVD_TEXT : CD_TEXT;
-        this.removeRowButton = new JButton(REMOVE_ME_BUTTON_TEXT);
-    }
-
-    public Object[] getRow(){
-        return new Object[]{
-                rowNumber,
-                name,
-                publisherTitle,
-                chunksCount,
-                cdDvdFlag,
-                removeRowButton
-        };
-    }
-}

src/main/java/tihwin/ul/UlConfiguration.java

@@ -20,9 +20,12 @@
  */
 package tihwin.ul;
 
+import java.io.BufferedInputStream;
+import java.io.File;
 import java.nio.Buffer;
 import java.nio.ByteBuffer;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
 import java.util.Arrays;
 
 public class UlConfiguration {
@@ -34,16 +37,36 @@ public class UlConfiguration {
     private final String crc32;
     private final byte chunksCount;
     private final byte cdDvdFlag;
+    private final boolean romIsDvdImage;
+
+    public UlConfiguration(File ulCfg, int recordNumber) throws Exception{
+        try(BufferedInputStream stream = new BufferedInputStream(Files.newInputStream(ulCfg.toPath()))){
+            int offset = recordNumber * 0x40;
+            int read = 0;
+            while (offset != read)
+                read += stream.skip(offset);
+            byte[] buffer = new byte[0x40];
+            if (0x40 != stream.read(buffer))
+                throw new Exception(recordNumber+" 0x40");
+            this.title = new String(buffer, 0, 0x20, StandardCharsets.US_ASCII).trim();
+            this.publisherTitle = new String(buffer, 0x23, 0xB, StandardCharsets.US_ASCII).trim();
+            this.crc32 = String.format("%08x", OplCRC32(title)).toUpperCase();
+            this.chunksCount = buffer[0x2f];
+            this.cdDvdFlag = buffer[0x30];
+            this.romIsDvdImage = (cdDvdFlag == DVD_FLAG);
+        }
+    }
 
     public UlConfiguration(String title, String publisherTitle, byte chunksCount, boolean isDVD) throws Exception{
         this.title = title;
         this.publisherTitle = publisherTitle;
-        this.crc32 = Integer.toHexString(OplCRC32(title)).toUpperCase();
+        this.crc32 = String.format("%08x", OplCRC32(title)).toUpperCase();
         this.chunksCount = chunksCount;
         if (isDVD)
             cdDvdFlag = DVD_FLAG;
         else
             cdDvdFlag = CD_FLAG;
+        this.romIsDvdImage = isDVD;
     }
 
     private int OplCRC32(String string) throws Exception{
@@ -78,6 +101,14 @@ public class UlConfiguration {
         return crc32;
     }
 
+    public String getTitle() {
+        return title;
+    }
+
+    public boolean isDvd() {
+        return romIsDvdImage;
+    }
+
     public String getPublisherTitle() {
         return publisherTitle;
     }

src/main/java/tihwin/ul/UlServiceTools.java

@@ -0,0 +1,93 @@
+/*
+
+     Copyright "2022" Dmitry Isaenko
+
+     This file is part of Tihwin.
+
+     Tihwin 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.
+
+     Tihwin 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 Tihwin.  If not, see <https://www.gnu.org/licenses/>.
+
+ */
+package tihwin.ul;
+
+import java.io.BufferedOutputStream;
+import java.io.File;
+import java.nio.file.*;
+import java.util.List;
+
+public class UlServiceTools {
+    public static boolean verifyChunksCount(String ulCfgLocation, UlConfiguration configuration){
+        int declaredChunksCount = configuration.getChunksCount();
+
+        File[] files = collectChunks(ulCfgLocation, configuration);
+        int realChunkCount = 0;
+
+        for (File chunkFile : files) {
+            if (chunkFile.exists())
+                realChunkCount++;
+        }
+
+        return declaredChunksCount == realChunkCount;
+    }
+
+    private static File[] collectChunks(String ulCfgLocation, UlConfiguration configuration){
+        String pattern = makePattern(ulCfgLocation, configuration);
+
+        int declaredChunksCount = configuration.getChunksCount();
+        File[] files = new File[declaredChunksCount];
+
+        for (int i = 0; i < declaredChunksCount; i++) {
+            File chunkFile = new File(String.format(pattern, i));
+            files[i] = chunkFile;
+        }
+
+        return files;
+    }
+
+    private static String makePattern(String ulCfgLocation, UlConfiguration configuration){
+        return ulCfgLocation +
+                File.separator +
+                String.format("ul.%s.%s.", configuration.getCrc32(), configuration.getPublisherTitle()) +
+                "%02d";
+    }
+
+    public static void renameChunks(String ulCfgLocation,
+                                       UlConfiguration oldConfiguration,
+                                       UlConfiguration newConfiguration) throws Exception{
+        String pattern = makePattern(ulCfgLocation, newConfiguration);
+
+        File[] files = collectChunks(ulCfgLocation, oldConfiguration);
+        for (int i = 0; i < files.length; i++){
+            String fileName = String.format(pattern, i);
+            Files.move(files[i].toPath(), Paths.get(fileName), StandardCopyOption.REPLACE_EXISTING);
+        }
+    }
+
+    public static void removeChunks(String ulCfgLocation, UlConfiguration configuration) throws Exception{
+        File[] files = collectChunks(ulCfgLocation, configuration);
+
+        for (File file : files) {
+            Files.deleteIfExists(file.toPath());
+        }
+    }
+
+    public static void writeUlCfgFile(String ulCfgLocation, List<UlConfiguration> fileContent) throws Exception{
+        String ulCfg = ulCfgLocation + File.separator + "ul.cfg";
+
+        try (BufferedOutputStream stream = new BufferedOutputStream(Files.newOutputStream(Paths.get(ulCfg)))){
+            for (UlConfiguration configuration: fileContent){
+                stream.write(configuration.generateUlConfig());
+            }
+        }
+    }
+}

src/main/resources/locale.properties

@@ -30,8 +30,11 @@ ulManagerWindow_ColumnNamePublisherTitle=Publisher title
 ulManagerWindow_ColumnNameChunksCount=Chunks count
 ulManagerWindow_ColumnCdDvdFlag=CD/DVD
 ulManagerWindow_Row_RemoveRowBtn=Remove
-CD=CD
-DVD=DVD
 ulManagerWindow_SaveBtn=Save changes
 ulManagerWindow_SelectUlCfgBtn=Select ul.cfg
 ulManagerWindow_EmptyOrIncorrectText=Empty or incorrect ul.cfg size
+ulManagerWindow_InconsistentFileText=One or more chunks not found. It is recommended to delete this entry.
+Ok=Ok
+CD=CD
+DVD=DVD
+ulManagerWindow_SaveChangesFailureText=Save changes failure:

src/main/resources/locale_ru_RU.properties

@@ -30,8 +30,11 @@ ulManagerWindow_ColumnNamePublisherTitle=\u0418\u043C\u044F \u043E\u0442 \u0438\
 ulManagerWindow_ColumnNameChunksCount=\u0412\u0441\u0435\u0433\u043E \u0447\u0430\u0441\u0442\u0435\u0439
 ulManagerWindow_ColumnCdDvdFlag=CD/DVD
 ulManagerWindow_Row_RemoveRowBtn=\u0423\u0434\u0430\u043B\u0438\u0442\u044C
-CD=CD
-DVD=DVD
 ulManagerWindow_SaveBtn=\u0421\u043E\u0445\u0440\u0430\u043D\u0438\u0442\u044C \u0438\u0437\u043C\u0435\u043D\u0435\u043D\u0438\u044F
 ulManagerWindow_SelectUlCfgBtn=\u0412\u044B\u0431\u0440\u0430\u0442\u044C ul.cfg
 ulManagerWindow_EmptyOrIncorrectText=\u041F\u0443\u0441\u0442\u043E\u0439 \u0438\u043B\u0438 \u043D\u0435\u043A\u043E\u0440\u0440\u0435\u043A\u0442\u043D\u044B\u0439 \u0440\u0430\u0437\u043C\u0435\u0440 \u0444\u0430\u0439\u043B\u0430 ul.cfg
+ulManagerWindow_InconsistentFileText=\u041E\u0434\u043D\u0430 \u0438\u043B\u0438 \u043D\u0435\u0441\u043A\u043E\u043B\u044C\u043A\u043E \u0447\u0430\u0441\u0442\u0435\u0439 \u0444\u0430\u0439\u043B\u0430 \u043D\u0430 \u043D\u0430\u0439\u0434\u0435\u043D\u044B. \u0420\u0435\u043A\u043E\u043C\u0435\u043D\u0434\u0443\u0435\u0442\u0441\u044F \u0443\u0434\u0430\u043B\u0438\u0442\u044C \u044D\u0442\u0443 \u0437\u0430\u043F\u0438\u0441\u044C.
+Ok=\u041E\u043A
+CD=CD
+DVD=DVD
+ulManagerWindow_SaveChangesFailureText=\u041D\u0435\u0432\u043E\u0437\u043C\u043E\u0436\u043D\u043E \u0441\u043E\u0445\u0440\u0430\u043D\u0438\u0442\u044C \u0438\u0437\u043C\u0435\u043D\u0435\u043D\u0438\u044F: