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From ag...@apache.org
Subject [10/18] ignite git commit: IGNITE-4349 Discontinue the schema-import utility.
Date Sun, 09 Apr 2017 13:51:33 GMT
http://git-wip-us.apache.org/repos/asf/ignite/blob/f6ee9c0f/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/MessageBox.java
----------------------------------------------------------------------
diff --git a/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/MessageBox.java b/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/MessageBox.java
deleted file mode 100644
index 83aaa61..0000000
--- a/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/MessageBox.java
+++ /dev/null
@@ -1,274 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.ignite.schema.ui;
-
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import javafx.beans.value.ChangeListener;
-import javafx.beans.value.ObservableValue;
-import javafx.event.ActionEvent;
-import javafx.event.EventHandler;
-import javafx.geometry.Pos;
-import javafx.scene.control.CheckBox;
-import javafx.scene.control.ScrollBar;
-import javafx.scene.control.TextArea;
-import javafx.scene.layout.HBox;
-import javafx.scene.layout.Priority;
-import javafx.stage.Modality;
-import javafx.stage.Stage;
-import javafx.stage.StageStyle;
-
-import static org.apache.ignite.schema.ui.Controls.borderPane;
-import static org.apache.ignite.schema.ui.Controls.button;
-import static org.apache.ignite.schema.ui.Controls.checkBox;
-import static org.apache.ignite.schema.ui.Controls.hBox;
-import static org.apache.ignite.schema.ui.Controls.imageView;
-import static org.apache.ignite.schema.ui.Controls.paneEx;
-import static org.apache.ignite.schema.ui.Controls.scene;
-
-/**
- * Message box functionality.
- */
-public class MessageBox extends ModalDialog {
-    /** Logger. */
-    private static final Logger log = Logger.getLogger(MessageBox.class.getName());
-
-    /** Message box type. */
-    private enum MessageType {
-        /** Information. */
-        INFO,
-        /** Warning. */
-        WARN,
-        /** Error. */
-        ERROR,
-        /** Confirm. */
-        CONFIRM,
-        /** Confirm with cancel option. */
-        CANCELLABLE_CONFIRM
-    }
-
-    /** Message box type. */
-    public enum Result {
-        /** Return value if YES is chosen. */
-        YES,
-        /** Return value if YES_TO_ALL is chosen. */
-        YES_TO_ALL,
-        /** Return value if NO is chosen. */
-        NO,
-        /** Return value if NO_TO_ALL is chosen. */
-        NO_TO_ALL,
-        /** Return value if CANCEL is chosen. */
-        CANCEL
-    }
-
-    /** Dialog result. */
-    private Result res = Result.CANCEL;
-
-    /**
-     * Create message box.
-     *
-     * @param owner Owner window.
-     * @param type Message box type.
-     * @param msg Message to show.
-     * @param applyToAll {@code true} if "Apply to all" check box should be displayed.
-     */
-    private MessageBox(Stage owner, MessageType type, String msg, final boolean applyToAll) {
-        super(owner, 480, 180);
-
-        String title;
-        String iconFile;
-
-        switch (type) {
-            case WARN:
-                title = "Warning";
-                iconFile = "sign_warning";
-                break;
-
-            case ERROR:
-                title = "Error";
-                iconFile = "error";
-                break;
-
-            case CONFIRM:
-            case CANCELLABLE_CONFIRM:
-                title = "Confirmation";
-                iconFile = "question";
-                break;
-
-            default:
-                title = "Information";
-                iconFile = "information";
-                break;
-        }
-
-        setTitle(title);
-        initStyle(StageStyle.UTILITY);
-        initModality(Modality.APPLICATION_MODAL);
-        initOwner(owner);
-        setResizable(false);
-
-        GridPaneEx contentPnl = paneEx(10, 10, 0, 10);
-
-        contentPnl.addColumn();
-        contentPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-
-        contentPnl.add(hBox(0, true, imageView(iconFile, 48)));
-
-        final TextArea ta = new TextArea(msg);
-        ta.setEditable(false);
-        ta.setWrapText(true);
-        ta.setFocusTraversable(false);
-
-        contentPnl.add(ta);
-
-        // Workaround for vertical scrollbar.
-        if (msg.length() < 100 && msg.split("\r\n|\r|\n").length < 4)
-            showingProperty().addListener(new ChangeListener<Boolean>() {
-                @Override public void changed(ObservableValue<? extends Boolean> val, Boolean oldVal, Boolean newVal) {
-                    if (newVal) {
-                        ScrollBar scrollBar = (ScrollBar)ta.lookup(".scroll-bar:vertical");
-
-                        if (scrollBar != null)
-                            scrollBar.setDisable(true);
-                    }
-                }
-            });
-
-        final CheckBox applyToAllCh = checkBox("Apply to all", "", false);
-
-        if (applyToAll) {
-            contentPnl.skip(1);
-            contentPnl.add(applyToAllCh);
-        }
-
-        HBox btns = hBox(10, true);
-        btns.setAlignment(Pos.CENTER);
-
-        if (MessageType.CONFIRM == type || MessageType.CANCELLABLE_CONFIRM == type) {
-            res = Result.NO;
-
-            btns.getChildren().addAll(
-                button("Yes", "Approve the request", new EventHandler<ActionEvent>() {
-                    @Override public void handle(ActionEvent e) {
-                        res = applyToAll && applyToAllCh.isSelected() ? Result.YES_TO_ALL : Result.YES;
-
-                        close();
-                    }
-                }),
-                button("No", "Reject the request", new EventHandler<ActionEvent>() {
-                    @Override public void handle(ActionEvent e) {
-                        res = applyToAll && applyToAllCh.isSelected() ? Result.NO_TO_ALL : Result.NO;
-
-                        close();
-                    }
-                }));
-
-            if (MessageType.CANCELLABLE_CONFIRM == type)
-                btns.getChildren().addAll(
-                    button("Cancel", "Cancel the request", new EventHandler<ActionEvent>() {
-                        @Override public void handle(ActionEvent e) {
-                            res = Result.CANCEL;
-
-                            close();
-                        }
-                    }));
-        }
-        else
-            btns.getChildren().add(button("OK", "Close dialog", new EventHandler<ActionEvent>() {
-                @Override public void handle(ActionEvent e) {
-                    close();
-                }
-            }));
-
-        setScene(scene(borderPane(null, contentPnl, btns, null, null)));
-    }
-
-    /**
-     * Show message in modal dialog.
-     *
-     * @param owner Owner window.
-     * @param type Message box type.
-     * @param msg Message to show.
-     * @param applyToAll {@code true} if &quot;Apply to all&quot; check box should be displayed.
-     * @return Option selected by the user.
-     */
-    private static Result showDialog(Stage owner, MessageType type, String msg, boolean applyToAll) {
-        MessageBox dlg = new MessageBox(owner, type, msg, applyToAll);
-
-        dlg.showModal();
-
-        return dlg.res;
-    }
-
-    /**
-     * Show confirmation dialog.
-     *
-     * @param owner Owner window.
-     * @param msg Message to show.
-     * @return {@code true} If user confirm.
-     */
-    public static boolean confirmDialog(Stage owner, String msg) {
-        return showDialog(owner, MessageType.CONFIRM, msg, false) == Result.YES;
-    }
-
-    /**
-     * Show confirmation dialog.
-     *
-     * @param owner Owner window.
-     * @param msg Message to show.
-     * @return User confirmation result.
-     */
-    public static Result applyToAllChoiceDialog(Stage owner, String msg) {
-        return showDialog(owner, MessageType.CANCELLABLE_CONFIRM, msg, true);
-    }
-
-    /**
-     * Show information dialog.
-     *
-     * @param owner Owner window.
-     * @param msg Message to show.
-     */
-    public static void informationDialog(Stage owner, String msg) {
-        showDialog(owner, MessageType.INFO, msg, false);
-    }
-
-    /**
-     * Show warning dialog.
-     *
-     * @param owner Owner window.
-     * @param msg Message to show.
-     */
-    public static void warningDialog(Stage owner, String msg) {
-        showDialog(owner, MessageType.WARN, msg, false);
-    }
-
-    /**
-     * Show error dialog.
-     *
-     * @param owner Owner window.
-     * @param msg Error message to show.
-     * @param e Optional exception to show.
-     */
-    public static void errorDialog(Stage owner, String msg, Throwable e) {
-        log.log(Level.SEVERE, msg, e);
-
-        String exMsg = e != null ? (e.getMessage() != null ? e.getMessage() : e.getClass().getName()) : null;
-
-        showDialog(owner, MessageType.ERROR, exMsg != null ? msg + "\n" + exMsg : msg, false);
-    }
-}
\ No newline at end of file

http://git-wip-us.apache.org/repos/asf/ignite/blob/f6ee9c0f/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/ModalDialog.java
----------------------------------------------------------------------
diff --git a/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/ModalDialog.java b/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/ModalDialog.java
deleted file mode 100644
index a1e34a1..0000000
--- a/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/ModalDialog.java
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.ignite.schema.ui;
-
-import javafx.stage.Stage;
-
-/**
- * Abstract base modal dialog.
- */
-public abstract class ModalDialog extends Stage {
-    /** Owner window. */
-    protected final Stage owner;
-
-    /**
-     * @param owner Owner window.
-     * @param width Window width.
-     * @param height Window height.
-     */
-    protected ModalDialog(Stage owner, int width, int height) {
-        this.owner = owner;
-
-        setWidth(width);
-        setHeight(height);
-    }
-
-    /**
-     * Show modal dialog.
-     */
-    protected void showModal() {
-        setX(owner.getX() + owner.getWidth() / 2 - getWidth() / 2);
-        setY(owner.getY() + owner.getHeight() / 2 - getHeight() / 2);
-
-        showAndWait();
-    }
-}

http://git-wip-us.apache.org/repos/asf/ignite/blob/f6ee9c0f/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/SchemaImportApp.java
----------------------------------------------------------------------
diff --git a/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/SchemaImportApp.java b/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/SchemaImportApp.java
deleted file mode 100644
index 6305341..0000000
--- a/modules/schema-import/src/main/java/org/apache/ignite/schema/ui/SchemaImportApp.java
+++ /dev/null
@@ -1,2115 +0,0 @@
-/*
- * Licensed to the Apache Software Foundation (ASF) under one or more
- * contributor license agreements.  See the NOTICE file distributed with
- * this work for additional information regarding copyright ownership.
- * The ASF licenses this file to You under the Apache License, Version 2.0
- * (the "License"); you may not use this file except in compliance with
- * the License.  You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.ignite.schema.ui;
-
-import java.awt.Desktop;
-import java.io.BufferedInputStream;
-import java.io.BufferedReader;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.lang.reflect.Field;
-import java.nio.charset.Charset;
-import java.sql.Connection;
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-import java.util.Properties;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.concurrent.ThreadFactory;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-import javafx.application.Application;
-import javafx.application.Platform;
-import javafx.beans.value.ChangeListener;
-import javafx.beans.value.ObservableValue;
-import javafx.collections.FXCollections;
-import javafx.collections.ObservableList;
-import javafx.concurrent.Task;
-import javafx.embed.swing.SwingFXUtils;
-import javafx.event.ActionEvent;
-import javafx.event.EventHandler;
-import javafx.geometry.Insets;
-import javafx.geometry.Pos;
-import javafx.geometry.VPos;
-import javafx.scene.Node;
-import javafx.scene.control.Button;
-import javafx.scene.control.CheckBox;
-import javafx.scene.control.ComboBox;
-import javafx.scene.control.Label;
-import javafx.scene.control.ListView;
-import javafx.scene.control.PasswordField;
-import javafx.scene.control.ProgressIndicator;
-import javafx.scene.control.TableCell;
-import javafx.scene.control.TableColumn;
-import javafx.scene.control.TableRow;
-import javafx.scene.control.TableView;
-import javafx.scene.control.TextField;
-import javafx.scene.control.TitledPane;
-import javafx.scene.layout.BorderPane;
-import javafx.scene.layout.HBox;
-import javafx.scene.layout.Pane;
-import javafx.scene.layout.Priority;
-import javafx.scene.layout.StackPane;
-import javafx.stage.DirectoryChooser;
-import javafx.stage.FileChooser;
-import javafx.stage.Screen;
-import javafx.stage.Stage;
-import javafx.util.Callback;
-import org.apache.ignite.internal.util.typedef.F;
-import org.apache.ignite.internal.util.typedef.internal.U;
-import org.apache.ignite.schema.generator.CodeGenerator;
-import org.apache.ignite.schema.generator.XmlGenerator;
-import org.apache.ignite.schema.model.PojoDescriptor;
-import org.apache.ignite.schema.model.PojoField;
-import org.apache.ignite.schema.model.SchemaDescriptor;
-import org.apache.ignite.schema.parser.DatabaseMetadataParser;
-import org.apache.ignite.schema.parser.DbMetadataReader;
-
-/**
- * Schema Import utility application.
- */
-@SuppressWarnings("UnnecessaryFullyQualifiedName")
-public class SchemaImportApp extends Application {
-    /** Logger. */
-    private static final Logger log = Logger.getLogger(SchemaImportApp.class.getName());
-
-    /** */
-    private static final String PREF_WINDOW_X = "window.x";
-
-    /** */
-    private static final String PREF_WINDOW_Y = "window.y";
-
-    /** */
-    private static final String PREF_WINDOW_WIDTH = "window.width";
-
-    /** */
-    private static final String PREF_WINDOW_HEIGHT = "window.height";
-
-    /** */
-    private static final String PREF_JDBC_DB_PRESET = "jdbc.db.preset";
-
-    /** */
-    private static final String PREF_JDBC_DRIVER_JAR = "jdbc.driver.jar";
-
-    /** */
-    private static final String PREF_JDBC_DRIVER_CLASS = "jdbc.driver.class";
-
-    /** */
-    private static final String PREF_JDBC_URL = "jdbc.url";
-
-    /** */
-    private static final String PREF_JDBC_USER = "jdbc.user";
-
-    /** */
-    private static final String PREF_OUT_FOLDER = "out.folder";
-
-    /** */
-    private static final String PREF_POJO_PACKAGE = "pojo.package";
-
-    /** */
-    private static final String PREF_POJO_INCLUDE = "pojo.include";
-
-    /** */
-    private static final String PREF_POJO_CONSTRUCTOR = "pojo.constructor";
-
-    /** */
-    private static final String PREF_GENERATE_ALIASES = "sql.aliases";
-
-    /** */
-    private static final String PREF_XML_SINGLE = "xml.single";
-
-    /** */
-    private static final String PREF_NAMING_PATTERN = "naming.pattern";
-
-    /** */
-    private static final String PREF_NAMING_REPLACE = "naming.replace";
-
-    /** Empty POJO fields model. */
-    private static final ObservableList<PojoField> NO_FIELDS = FXCollections.emptyObservableList();
-
-    /** Ability to use xdg-open utility flag. */
-    private static final boolean HAS_XDG_OPEN = U.isUnix() && new File("/usr/bin/xdg-open").canExecute();
-
-    /** Default presets for popular databases. */
-    private final Preset[] presets = {
-        new Preset("h2", "H2 Database", "h2.jar", "org.h2.Driver", "jdbc:h2:[database]", "sa"),
-        new Preset("db2", "DB2", "db2jcc4.jar", "com.ibm.db2.jcc.DB2Driver", "jdbc:db2://[host]:[port]/[database]",
-            "db2admin"),
-        new Preset("oracle", "Oracle", "ojdbc6.jar", "oracle.jdbc.OracleDriver",
-            "jdbc:oracle:thin:@[host]:[port]:[database]", "system"),
-        new Preset("mysql", "MySQL", "mysql-connector-java-5-bin.jar", "com.mysql.jdbc.Driver",
-            "jdbc:mysql://[host]:[port]/[database]", "root"),
-        new Preset("mssql", "Microsoft SQL Server", "sqljdbc41.jar", "com.microsoft.sqlserver.jdbc.SQLServerDriver",
-            "jdbc:sqlserver://[host]:[port][;databaseName=database]", "sa"),
-        new Preset("postgresql", "PostgreSQL", "postgresql-9.3.jdbc4.jar", "org.postgresql.Driver",
-            "jdbc:postgresql://[host]:[port]/[database]", "sa"),
-        new Preset("custom", "Custom server...", "custom-jdbc.jar", "org.custom.Driver", "jdbc:custom", "sa")
-    };
-
-    /** */
-    private Stage owner;
-
-    /** */
-    private BorderPane rootPane;
-
-    /** Header pane. */
-    private BorderPane hdrPane;
-
-    /** */
-    private HBox dbIcon;
-
-    /** */
-    private HBox genIcon;
-
-    /** */
-    private Label titleLb;
-
-    /** */
-    private Label subTitleLb;
-
-    /** */
-    private Button prevBtn;
-
-    /** */
-    private Button nextBtn;
-
-    /** */
-    private ComboBox<Preset> rdbmsCb;
-
-    /** */
-    private TextField jdbcDrvJarTf;
-
-    /** */
-    private TextField jdbcDrvClsTf;
-
-    /** */
-    private TextField jdbcUrlTf;
-
-    /** */
-    private TextField userTf;
-
-    /** */
-    private PasswordField pwdTf;
-
-    /** */
-    private ComboBox<String> parseCb;
-
-    /** */
-    private ListView<SchemaDescriptor> schemaLst;
-
-    /** */
-    private GridPaneEx connPnl;
-
-    /** */
-    private StackPane connLayerPnl;
-
-    /** */
-    private TableView<PojoDescriptor> pojosTbl;
-
-    /** */
-    private TableView<PojoField> fieldsTbl;
-
-    /** */
-    private Node curTbl;
-
-    /** */
-    private TextField outFolderTf;
-
-    /** */
-    private TextField pkgTf;
-
-    /** */
-    private CheckBox pojoConstructorCh;
-
-    /** */
-    private CheckBox generateAliasesCh;
-
-    /** */
-    private CheckBox pojoIncludeKeysCh;
-
-    /** */
-    private CheckBox xmlSingleFileCh;
-
-    /** */
-    private TextField regexTf;
-
-    /** */
-    private TextField replaceTf;
-
-    /** */
-    private GridPaneEx genPnl;
-
-    /** */
-    private StackPane genLayerPnl;
-
-    /** */
-    private ProgressIndicator pi;
-
-    /** */
-    private ObservableList<SchemaDescriptor> schemas = FXCollections.emptyObservableList();
-
-    /** List with POJOs descriptors. */
-    private ObservableList<PojoDescriptor> pojos = FXCollections.emptyObservableList();
-
-    /** Currently selected POJO. */
-    private PojoDescriptor curPojo;
-
-    /** Application preferences. */
-    private final Properties prefs = new Properties();
-
-    /** File path for storing on local file system. */
-    private final File prefsFile = new File(System.getProperty("user.home"), ".ignite-schema-import");
-
-    /** */
-    private final ExecutorService exec = Executors.newSingleThreadExecutor(new ThreadFactory() {
-        /** {@inheritDoc} */
-        @Override public Thread newThread(Runnable r) {
-            Thread t = new Thread(r, "ignite-schema-import-worker");
-
-            t.setDaemon(true);
-
-            return t;
-        }
-    });
-
-    /**
-     * Schema Import utility launcher.
-     *
-     * @param args Command line arguments passed to the application.
-     */
-    public static void main(String[] args) {
-        // Workaround for JavaFX ugly text AA.
-        System.setProperty("prism.lcdtext", "false");
-        System.setProperty("prism.text", "t2k");
-
-        // Workaround for AWT + JavaFX: we should initialize AWT before JavaFX.
-        java.awt.Toolkit.getDefaultToolkit();
-
-        // Workaround for JavaFX + Mac OS dock icon.
-        if (System.getProperty("os.name").toLowerCase().contains("mac os")) {
-            System.setProperty("javafx.macosx.embedded", "true");
-
-            try {
-                Class<?> appCls = Class.forName("com.apple.eawt.Application");
-
-                Object osxApp = appCls.getDeclaredMethod("getApplication").invoke(null);
-
-                appCls.getDeclaredMethod("setDockIconImage", java.awt.Image.class)
-                    .invoke(osxApp, SwingFXUtils.fromFXImage(Controls.image("ignite", 128), null));
-            }
-            catch (Exception ignore) {
-                // No-op.
-            }
-
-            // Workaround for JDK 7/JavaFX 2 application on Mac OSX El Capitan.
-            try {
-                Class<?> fontFinderCls = Class.forName("com.sun.t2k.MacFontFinder");
-
-                Field psNameToPathMap = fontFinderCls.getDeclaredField("psNameToPathMap");
-
-                psNameToPathMap.setAccessible(true);
-                psNameToPathMap.set(null, new HashMap<String, String>());
-            }
-            catch (Exception ignore) {
-                // No-op.
-            }
-        }
-
-        launch(args);
-    }
-
-    /**
-     * Lock UI before start long task.
-     *
-     * @param layer Stack pane to add progress indicator.
-     * @param controls Controls to disable.
-     */
-    private void lockUI(StackPane layer, Node... controls) {
-        for (Node control : controls)
-            control.setDisable(true);
-
-        layer.getChildren().add(pi);
-    }
-
-    /**
-     * Unlock UI after long task finished.
-     *
-     * @param layer Stack pane to remove progress indicator.
-     * @param controls Controls to enable.
-     */
-    private void unlockUI(StackPane layer, Node... controls) {
-        for (Node control : controls)
-            control.setDisable(false);
-
-        layer.getChildren().remove(pi);
-    }
-
-    /**
-     * Perceptual delay to avoid UI flickering.
-     *
-     * @param started Time when background progress started.
-     */
-    private void perceptualDelay(long started) {
-        long delta = System.currentTimeMillis() - started;
-
-        if (delta < 500)
-            try {
-                Thread.sleep(500 - delta);
-            }
-            catch (InterruptedException ignored) {
-                Thread.currentThread().interrupt();
-            }
-    }
-
-    /**
-     * Open connection to database.
-     *
-     * @return Connection to database.
-     * @throws SQLException If connection failed.
-     */
-    private Connection connect() throws SQLException {
-        final String jdbcDrvJarPath = jdbcDrvJarTf.getText().trim();
-
-        final String jdbcDrvCls = jdbcDrvClsTf.getText();
-
-        final String jdbcUrl = jdbcUrlTf.getText();
-
-        String user = userTf.getText().trim();
-
-        String pwd = pwdTf.getText().trim();
-
-        final Properties jdbcInfo = new Properties();
-
-        if (!user.isEmpty())
-            jdbcInfo.put("user", user);
-
-        if (!pwd.isEmpty())
-            jdbcInfo.put("password", pwd);
-
-        return DbMetadataReader.getInstance().connect(jdbcDrvJarPath, jdbcDrvCls, jdbcUrl, jdbcInfo);
-    }
-
-    /**
-     * Fill tree with database metadata.
-     */
-    private void fill() {
-        final List<String> selSchemas = new ArrayList<>();
-
-        for (SchemaDescriptor schema: schemas)
-            if (schema.selected().getValue())
-                selSchemas.add(schema.schema());
-
-        if (selSchemas.isEmpty())
-            if (!MessageBox.confirmDialog(owner, "No schemas selected.\nExtract tables for all available schemas?"))
-                return;
-
-        lockUI(connLayerPnl, connPnl, nextBtn);
-
-        final String jdbcUrl = jdbcUrlTf.getText();
-
-        final boolean tblsOnly = parseCb.getSelectionModel().getSelectedIndex() == 0;
-
-        Runnable task = new Task<Void>() {
-            /** {@inheritDoc} */
-            @Override protected Void call() throws Exception {
-                long started = System.currentTimeMillis();
-
-                try (Connection conn = connect()) {
-                    pojos = DatabaseMetadataParser.parse(conn, selSchemas, tblsOnly);
-                }
-
-                perceptualDelay(started);
-
-                return null;
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void succeeded() {
-                try {
-                    super.succeeded();
-
-                    pojosTbl.setItems(pojos);
-
-                    if (pojos.isEmpty()) {
-                        MessageBox.warningDialog(owner, "No tables found in database. Recheck JDBC URL.\n" +
-                            "JDBC URL: " +  jdbcUrl);
-
-                        return;
-                    }
-                    else
-                        pojosTbl.getSelectionModel().clearAndSelect(0);
-
-                    curTbl = pojosTbl;
-
-                    pojosTbl.requestFocus();
-
-                    hdrPane.setLeft(genIcon);
-
-                    titleLb.setText("Generate XML And POJOs");
-                    subTitleLb.setText(jdbcUrlTf.getText());
-
-                    rootPane.setCenter(genLayerPnl);
-
-                    prevBtn.setDisable(false);
-                    nextBtn.setText("Generate");
-                    Controls.tooltip(nextBtn, "Generate XML and POJO files");
-                }
-                finally {
-                    unlockUI(connLayerPnl, connPnl, nextBtn);
-                }
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void cancelled() {
-                super.cancelled();
-
-                unlockUI(connLayerPnl, connPnl, nextBtn);
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void failed() {
-                super.succeeded();
-
-                unlockUI(connLayerPnl, connPnl, nextBtn);
-
-                MessageBox.errorDialog(owner, "Failed to get tables list from database.", getException());
-            }
-        };
-
-        exec.submit(task);
-    }
-
-    /**
-     * Load schemas list from database.
-     */
-    private void loadSchemas() {
-        lockUI(connLayerPnl, connPnl, nextBtn);
-
-        final String jdbcUrl = jdbcUrlTf.getText();
-
-        Runnable task = new Task<Void>() {
-            /** {@inheritDoc} */
-            @Override protected Void call() throws Exception {
-                long started = System.currentTimeMillis();
-
-                try (Connection conn = connect()) {
-                    schemas = DatabaseMetadataParser.schemas(conn);
-                }
-
-                perceptualDelay(started);
-
-                return null;
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void succeeded() {
-                try {
-                    super.succeeded();
-
-                    schemaLst.setItems(schemas);
-
-                    if (schemas.isEmpty()) {
-                        MessageBox.warningDialog(owner, "No schemas found in database. Recheck JDBC URL.\n" +
-                            "JDBC URL: " +  jdbcUrl);
-
-                        return;
-                    }
-
-                    nextBtn.setDisable(false);
-                }
-                finally {
-                    unlockUI(connLayerPnl, connPnl, nextBtn);
-                }
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void cancelled() {
-                super.cancelled();
-
-                unlockUI(connLayerPnl, connPnl, nextBtn);
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void failed() {
-                super.succeeded();
-
-                unlockUI(connLayerPnl, connPnl, nextBtn);
-
-                MessageBox.errorDialog(owner, "Failed to get schemas list from database.", getException());
-            }
-        };
-
-        exec.submit(task);
-    }
-
-    /**
-     * Generate XML and POJOs.
-     */
-    private void generate() {
-        final Collection<PojoDescriptor> selPojos = checkedPojos();
-
-        if (selPojos.isEmpty()) {
-            MessageBox.warningDialog(owner, "Please select tables to generate XML and POJOs files!");
-
-            return;
-        }
-
-        if (!checkInput(outFolderTf, true, "Output folder should not be empty!"))
-            return;
-
-        lockUI(genLayerPnl, genPnl, prevBtn, nextBtn);
-
-        final String outFolder = outFolderTf.getText();
-
-        final String pkg = pkgTf.getText();
-
-        final File destFolder = new File(outFolder);
-
-        final boolean constructor = pojoConstructorCh.isSelected();
-
-        final boolean includeKeys = pojoIncludeKeysCh.isSelected();
-
-        final boolean generateAliases = generateAliasesCh.isSelected();
-
-        final boolean singleXml = xmlSingleFileCh.isSelected();
-
-        Runnable task = new Task<Void>() {
-            /**
-             * @param pojo POJO descriptor to check.
-             * @param selected Selected flag.
-             * @param msg Message to show in case of check failed.
-             */
-            private void checkEmpty(final PojoDescriptor pojo, boolean selected, String msg) {
-                if (!selected) {
-                    Platform.runLater(new Runnable() {
-                        @Override public void run() {
-                            TableView.TableViewSelectionModel<PojoDescriptor> selMdl = pojosTbl.getSelectionModel();
-
-                            selMdl.clearSelection();
-                            selMdl.select(pojo);
-                            pojosTbl.scrollTo(selMdl.getSelectedIndex());
-                        }
-                    });
-
-                    throw new IllegalStateException(msg + pojo.table());
-                }
-            }
-
-            /** {@inheritDoc} */
-            @Override protected Void call() throws Exception {
-                long started = System.currentTimeMillis();
-
-                if (!destFolder.exists() && !destFolder.mkdirs())
-                    throw new IOException("Failed to create output folder: " + destFolder);
-
-                Collection<PojoDescriptor> all = new ArrayList<>();
-
-                ConfirmCallable askOverwrite = new ConfirmCallable(owner, "File already exists: %s\nOverwrite?");
-
-                // Generate XML and POJO.
-                for (PojoDescriptor pojo : selPojos) {
-                    if (pojo.checked()) {
-                        checkEmpty(pojo, pojo.hasFields(), "No fields selected for type: ");
-                        checkEmpty(pojo, pojo.hasKeyFields(), "No key fields selected for type: ");
-                        checkEmpty(pojo, pojo.hasValueFields(includeKeys), "No value fields selected for type: ");
-
-                        all.add(pojo);
-                    }
-                }
-
-                for (PojoDescriptor pojo : all) {
-                    if (!singleXml)
-                        XmlGenerator.generate(pkg, pojo, includeKeys, generateAliases,
-                            new File(destFolder, pojo.table() + ".xml"), askOverwrite);
-
-                    CodeGenerator.pojos(pojo, outFolder, pkg, constructor, includeKeys, askOverwrite);
-                }
-
-                if (singleXml)
-                    XmlGenerator.generate(pkg, all, includeKeys, generateAliases,
-                        new File(outFolder, "ignite-type-metadata.xml"), askOverwrite);
-
-                CodeGenerator.snippet(all, pkg, includeKeys, generateAliases, outFolder, askOverwrite);
-
-                perceptualDelay(started);
-
-                return null;
-            }
-
-            /**
-             * Running of command with reading of first printed line.
-             *
-             * @param cmdLine Process to run.
-             * @return First printed by command line.
-             */
-            private String execAndReadLine(Process cmdLine) {
-                InputStream stream = cmdLine.getInputStream();
-                Charset cs = Charset.defaultCharset();
-
-                try(BufferedReader reader = new BufferedReader(
-                        cs == null ? new InputStreamReader(stream) : new InputStreamReader(stream, cs))) {
-                    return reader.readLine();
-                }
-                catch (IOException ignored){
-                    return null;
-                }
-            }
-
-            /**
-             * Start specified command in separate process.
-             *
-             * @param commands Executable file and command parameters in array.
-             * @return Process instance for run command.
-             */
-            private Process startProcess(List<String> commands) throws IOException {
-                ProcessBuilder builder = new ProcessBuilder(commands);
-
-                Map<String, String> environment = builder.environment();
-
-                environment.clear();
-
-                environment.putAll(System.getenv());
-
-                return builder.start();
-            }
-
-            /**
-             * Convert specified command parameters to system specific parameters.
-             *
-             * @param cmd Path to executable file.
-             * @param parameters Params for created process.
-             * @return List of converted system specific parameters.
-             */
-            private List<String> toCommandLine(String cmd, String... parameters) {
-                boolean isWin = U.isWindows();
-
-                List<String> params = new ArrayList<>(parameters.length + 1);
-
-                params.add(cmd.replace('/', File.separatorChar).replace('\\', File.separatorChar));
-
-                for (String parameter: parameters) {
-                    if (isWin) {
-                        if (parameter.contains("\"")) params.add(parameter.replace("\"", "\\\""));
-                        else if (parameter.isEmpty()) params.add("\"\"");
-                        else params.add(parameter);
-                    }
-                    else
-                        params.add(parameter);
-                }
-
-                return params;
-            }
-
-            /**
-             * Create process for run specified command.
-             *
-             * @param execPath Path to executable file.
-             * @param params Params for created process.
-             * @return Process instance for run command.
-             */
-            private Process createProcess(String execPath, String... params) throws IOException {
-                if (F.isEmpty(execPath))
-                    throw new IllegalArgumentException("Executable not specified");
-
-                return startProcess(toCommandLine(execPath, params));
-            }
-
-            /**
-             * Compare two version strings.
-             *
-             * @param v1 Version string 1.
-             * @param v2 Version string 2.
-             * @return The value 0 if the argument version is equal to this version.
-             * A value less than 0 if this version is less than the version argument.
-             * A value greater than 0 if this version is greater than the version argument.
-             */
-            private int compareVersionNumbers(String v1, String v2) {
-                if (v1 == null && v2 == null)
-                    return 0;
-
-                if (v1 == null)
-                    return -1;
-
-                if (v2 == null)
-                    return 1;
-
-                String[] part1 = v1.split("[._-]");
-                String[] part2 = v2.split("[._-]");
-
-                int idx = 0;
-
-                while (idx < part1.length && idx < part2.length) {
-                    String p1 = part1[idx];
-                    String p2 = part2[idx];
-
-                    int cmp = p1.matches("\\d+") && p2.matches("\\d+") ? Integer.valueOf(p1).compareTo(Integer.valueOf(p2)) :
-                            part1[idx].compareTo(part2[idx]);
-
-                    if (cmp != 0)
-                        return cmp;
-
-                    idx += 1;
-                }
-
-                if (part1.length == part2.length)
-                    return 0;
-                else {
-                    boolean left = part1.length > idx;
-                    String[] parts = left ? part1 : part2;
-
-                    while (idx < parts.length) {
-                        String p = parts[idx];
-
-                        int cmp = p.matches("\\d+") ? Integer.valueOf(p).compareTo(0) : 1;
-
-                        if (cmp != 0) return left ? cmp : -cmp;
-
-                        idx += 1;
-                    }
-
-                    return 0;
-                }
-            }
-
-            /**
-             * Check that system has Nautilus.
-             *
-             * @return {@code True} when Nautilus is installed or {@code false} otherwise.
-             * @throws IOException If failed to detect Nautilus.
-             */
-            private boolean canUseNautilus() throws IOException {
-                if (U.isUnix() || new File("/usr/bin/xdg-mime").canExecute() || new File("/usr/bin/nautilus").canExecute()) {
-                    String appName = execAndReadLine(createProcess("xdg-mime", "query", "default", "inode/directory"));
-
-                    if (appName == null || !appName.matches("nautilus.*\\.desktop"))
-                        return false;
-                    else {
-                        String ver = execAndReadLine(createProcess("nautilus", "--version"));
-
-                        if (ver != null) {
-                            Matcher m = Pattern.compile("GNOME nautilus ([0-9.]+)").matcher(ver);
-
-                            return m.find() && compareVersionNumbers(m.group(1), "3") >= 0;
-                        }
-                        else
-                            return false;
-                    }
-                }
-                else
-                    return false;
-            }
-
-            /**
-             * Open specified folder with selection of specified file in system file manager.
-             *
-             * @param dir Opened folder.
-             */
-            private void openFolder(File dir) throws IOException {
-                if (U.isWindows())
-                    Runtime.getRuntime().exec("explorer /root," + dir.getAbsolutePath());
-                else if (U.isMacOs())
-                    createProcess("open", dir.getAbsolutePath());
-                else if (canUseNautilus())
-                    createProcess("nautilus", dir.getAbsolutePath());
-                else {
-                    String path = dir.getAbsolutePath();
-
-                    if (HAS_XDG_OPEN)
-                        createProcess("/usr/bin/xdg-open", path);
-                    else if (Desktop.isDesktopSupported() && Desktop.getDesktop().isSupported(Desktop.Action.OPEN))
-                        Desktop.getDesktop().open(new File(path));
-                    else
-                        MessageBox.warningDialog(owner, "This action isn't supported on the current platform" +
-                            ((U.isLinux() || U.isUnix() || U.isSolaris()) ?
-                            ".\nTo fix this issue you should install library libgnome2-0." : ""));
-                }
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void succeeded() {
-                super.succeeded();
-
-                unlockUI(genLayerPnl, genPnl, prevBtn, nextBtn);
-
-                if (MessageBox.confirmDialog(owner, "Generation complete!\n\n" +
-                    "Reveal output folder in system default file browser?"))
-                    try {
-                        openFolder(destFolder);
-                    }
-                    catch (Exception e) {
-                        MessageBox.errorDialog(owner, "Failed to open folder with results.", e);
-                    }
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void cancelled() {
-                super.cancelled();
-
-                unlockUI(genLayerPnl, genPnl, prevBtn, nextBtn);
-
-                MessageBox.warningDialog(owner, "Generation canceled.");
-            }
-
-            /** {@inheritDoc} */
-            @Override protected void failed() {
-                super.succeeded();
-
-                unlockUI(genLayerPnl, genPnl, prevBtn, nextBtn);
-
-                MessageBox.errorDialog(owner, "Generation failed.", getException());
-            }
-        };
-
-        exec.submit(task);
-    }
-
-    /**
-     * @return Header pane with title label.
-     */
-    private BorderPane createHeaderPane() {
-        dbIcon = Controls.hBox(0, true, Controls.imageView("data_connection", 48));
-        genIcon = Controls.hBox(0, true, Controls.imageView("text_tree", 48));
-
-        titleLb = Controls.label("");
-        titleLb.setId("banner");
-
-        subTitleLb = Controls.label("");
-
-        BorderPane bp = Controls.borderPane(null, Controls.vBox(5, titleLb, subTitleLb), null, dbIcon,
-            Controls.hBox(0, true, Controls.imageView("ignite", 48)));
-        bp.setId("banner");
-
-        return bp;
-    }
-
-    /**
-     * @return Panel with control buttons.
-     */
-    private Pane createButtonsPane() {
-        prevBtn = Controls.button("Prev", "Go to \"Database connection\" page", new EventHandler<ActionEvent>() {
-            @Override public void handle(ActionEvent evt) {
-                prev();
-            }
-        });
-
-        nextBtn = Controls.button("Next", "Go to \"POJO and XML generation\" page", new EventHandler<ActionEvent>() {
-            @Override public void handle(ActionEvent evt) {
-                next();
-            }
-        });
-
-        return Controls.buttonsPane(Pos.BOTTOM_RIGHT, true, prevBtn, nextBtn);
-    }
-
-    /**
-     * @return {@code true} if some changes were made to fields metadata.
-     */
-    private boolean changed() {
-        for (PojoDescriptor pojo : pojos)
-            if (pojo.changed())
-                return true;
-
-        return false;
-    }
-
-    /**
-     * Go to &quot;Connect To Database&quot; panel.
-     */
-    private void prev() {
-        if (changed() && !MessageBox.confirmDialog(owner, "Are you sure you want to return to previous page?\n" +
-            "This will discard all your changes."))
-            return;
-
-        hdrPane.setLeft(dbIcon);
-
-        titleLb.setText("Connect To Database");
-        subTitleLb.setText("Specify database connection properties...");
-
-        rootPane.setCenter(connLayerPnl);
-
-        prevBtn.setDisable(true);
-        nextBtn.setText("Next");
-        Controls.tooltip(nextBtn, "Go to \"XML and POJO generation\" page");
-    }
-
-    /**
-     * Check that text field is non empty.
-     *
-     * @param tf Text field check.
-     * @param trim If {@code true} then
-     * @param msg Warning message.
-     * @return {@code true} If text field is empty.
-     */
-    private boolean checkInput(TextField tf, boolean trim, String msg) {
-        String s = tf.getText();
-
-        s = trim ? s.trim() : s;
-
-        if (s.isEmpty()) {
-            tf.requestFocus();
-
-            MessageBox.warningDialog(owner, msg);
-
-            return false;
-        }
-
-        return true;
-    }
-
-    /**
-     * Go to &quot;Generate XML And POJOs&quot; panel or generate XML and POJOs.
-     */
-    private void next() {
-        if (rootPane.getCenter() == connLayerPnl) {
-            if (checkInput(jdbcDrvJarTf, true, "Path to JDBC driver is not specified!") &&
-                checkInput(jdbcDrvClsTf, true, "JDBC driver class name is not specified!") &&
-                checkInput(jdbcUrlTf, true, "JDBC URL connection string is not specified!") &&
-                checkInput(userTf, true, "User name is not specified!"))
-                fill();
-        }
-        else
-            generate();
-    }
-
-    /**
-     * Create connection pane with controls.
-     *
-     * @return Pane with connection controls.
-     */
-    private Pane createConnectionPane() {
-        connPnl = Controls.paneEx(10, 10, 0, 10);
-
-        connPnl.addColumn();
-        connPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-        connPnl.addColumn(35, 35, 35, Priority.NEVER);
-
-        connPnl.addRows(9);
-        connPnl.addRow(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-
-        connPnl.add(Controls.text("This utility is designed to automatically generate configuration XML files and" +
-            " POJO classes from database schema information.", 550), 3);
-
-        connPnl.wrap();
-
-        GridPaneEx presetPnl = Controls.paneEx(0, 0, 0, 0);
-        presetPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-        presetPnl.addColumn();
-
-        rdbmsCb = presetPnl.add(Controls.comboBox("Select database server to get predefined settings", presets));
-
-        presetPnl.add(Controls.button("Save preset", "Save current settings in preferences", new EventHandler<ActionEvent>() {
-            @Override public void handle(ActionEvent evt) {
-                Preset preset = rdbmsCb.getSelectionModel().getSelectedItem();
-
-                savePreset(preset);
-            }
-        }));
-
-        connPnl.add(Controls.label("DB Preset:"));
-        connPnl.add(presetPnl, 2);
-
-        jdbcDrvJarTf = connPnl.addLabeled("Driver JAR:", Controls.textField("Path to driver jar"));
-
-        connPnl.add(Controls.button("...", "Select JDBC driver jar or zip", new EventHandler<ActionEvent>() {
-            /** {@inheritDoc} */
-            @Override public void handle(ActionEvent evt) {
-                FileChooser fc = new FileChooser();
-
-                try {
-                    File jarFolder = new File(jdbcDrvJarTf.getText()).getParentFile();
-
-                    if (jarFolder.exists())
-                        fc.setInitialDirectory(jarFolder);
-                }
-                catch (Exception ignored) {
-                    // No-op.
-                }
-
-                jdbcDrvJarTf.getText();
-
-                fc.getExtensionFilters().addAll(
-                    new FileChooser.ExtensionFilter("JDBC Drivers (*.jar)", "*.jar"),
-                    new FileChooser.ExtensionFilter("ZIP archives (*.zip)", "*.zip"));
-
-                File drvJar = fc.showOpenDialog(owner);
-
-                if (drvJar != null)
-                    jdbcDrvJarTf.setText(drvJar.getAbsolutePath());
-            }
-        }));
-
-        jdbcDrvClsTf = connPnl.addLabeled("JDBC Driver:", Controls.textField("Enter class name for JDBC driver"), 2);
-
-        jdbcUrlTf = connPnl.addLabeled("JDBC URL:", Controls.textField("JDBC URL of the database connection string"), 2);
-
-        rdbmsCb.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<Preset>() {
-            @Override public void changed(ObservableValue<? extends Preset> val, Preset oldVal, Preset newVal) {
-                jdbcDrvJarTf.setText(newVal.jar);
-                jdbcDrvClsTf.setText(newVal.drv);
-                jdbcUrlTf.setText(newVal.url);
-                userTf.setText(newVal.user);
-            }
-        });
-
-        userTf = connPnl.addLabeled("User:", Controls.textField("User name"), 2);
-
-        pwdTf = connPnl.addLabeled("Password:", Controls.passwordField("User password"), 2);
-
-        parseCb = connPnl.addLabeled("Parse:", Controls.comboBox("Type of tables to parse", "Tables only", "Tables and Views"), 2);
-
-        GridPaneEx schemaPnl = Controls.paneEx(5, 5, 5, 5);
-        schemaPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-        schemaPnl.addColumn();
-
-        schemaLst = schemaPnl.add(Controls.list("Select schemas to load", new SchemaCell()));
-
-        schemaPnl.wrap();
-
-        schemaPnl.add(Controls.button("Load schemas", "Load schemas for specified database", new EventHandler<ActionEvent>() {
-            /** {@inheritDoc} */
-            @Override public void handle(ActionEvent evt) {
-                loadSchemas();
-            }
-        }));
-
-        TitledPane titledPnl = connPnl.add(Controls.titledPane("Schemas", schemaPnl, false), 3);
-
-        titledPnl.setExpanded(true);
-
-        GridPaneEx.setValignment(titledPnl, VPos.TOP);
-
-        connLayerPnl = Controls.stackPane(connPnl);
-
-        return connLayerPnl;
-    }
-
-    /**
-     * Check if new class name is unique.
-     *
-     * @param pojo Current edited POJO.
-     * @param newVal New value for class name.
-     * @param key {@code true} if key class name is checked.
-     * @return {@code true} if class name is valid.
-     */
-    private boolean checkClassNameUnique(PojoDescriptor pojo, String newVal, boolean key) {
-        for (PojoDescriptor otherPojo : pojos)
-            if (pojo != otherPojo) {
-                String otherKeyCls = otherPojo.keyClassName();
-                String otherValCls = otherPojo.valueClassName();
-
-                if (newVal.equals(otherKeyCls) || newVal.equals(otherValCls)) {
-                    MessageBox.warningDialog(owner, (key ? "Key" : "Value") + " class name must be unique!");
-
-                    return false;
-                }
-            }
-
-        return true;
-    }
-
-    /**
-     * Check if new class name is valid.
-     *
-     * @param pojo Current edited POJO.
-     * @param newVal New value for class name.
-     * @param key {@code true} if key class name is checked.
-     * @return {@code true} if class name is valid.
-     */
-    private boolean checkClassName(PojoDescriptor pojo, String newVal, boolean key) {
-        if (newVal.trim().isEmpty()) {
-            MessageBox.warningDialog(owner, (key ? "Key" : "Value") + " class name must be non empty!");
-
-            return false;
-        }
-
-        if (key) {
-            if (newVal.equals(pojo.valueClassName())) {
-                MessageBox.warningDialog(owner, "Key class name must be different from value class name!");
-
-                return false;
-            }
-        }
-        else if (newVal.equals(pojo.keyClassName())) {
-            MessageBox.warningDialog(owner, "Value class name must be different from key class name!");
-
-            return false;
-        }
-
-        return checkClassNameUnique(pojo, newVal, key);
-    }
-
-    /**
-     * Create generate pane with controls.
-     */
-    private void createGeneratePane() {
-        genPnl = Controls.paneEx(10, 10, 0, 10);
-
-        genPnl.addColumn();
-        genPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-        genPnl.addColumn(35, 35, 35, Priority.NEVER);
-
-        genPnl.addRow(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-        genPnl.addRows(8);
-
-        TableColumn<PojoDescriptor, Boolean> useCol = Controls.customColumn("Schema / Table", "use",
-            "If checked then this table will be used for XML and POJOs generation", PojoDescriptorCell.cellFactory());
-
-        TableColumn<PojoDescriptor, String> keyClsCol = Controls.textColumn("Key Class Name", "keyClassName", "Key class name",
-            new TextColumnValidator<PojoDescriptor>() {
-                @Override public boolean valid(PojoDescriptor rowVal, String newVal) {
-                    boolean valid = checkClassName(rowVal, newVal, true);
-
-                    if (valid)
-                        rowVal.keyClassName(newVal);
-
-                    return valid;
-                }
-            });
-
-        TableColumn<PojoDescriptor, String> valClsCol = Controls.textColumn("Value Class Name", "valueClassName",
-            "Value class name", new TextColumnValidator<PojoDescriptor>() {
-                @Override public boolean valid(PojoDescriptor rowVal, String newVal) {
-                    boolean valid = checkClassName(rowVal, newVal, false);
-
-                    if (valid)
-                        rowVal.valueClassName(newVal);
-
-                    return valid;
-                }
-            });
-
-        pojosTbl = Controls.tableView("Tables not found in database", useCol, keyClsCol, valClsCol);
-
-        TableColumn<PojoField, Boolean> useFldCol = Controls.customColumn("Use", "use",
-            "Check to use this field for XML and POJO generation\n" +
-            "Note that NOT NULL columns cannot be unchecked", PojoFieldUseCell.cellFactory());
-        useFldCol.setMinWidth(50);
-        useFldCol.setMaxWidth(50);
-
-        TableColumn<PojoField, Boolean> keyCol = Controls.booleanColumn("Key", "key",
-            "Check to include this field into key object");
-
-        TableColumn<PojoField, Boolean> akCol = Controls.booleanColumn("AK", "affinityKey",
-            "Check to annotate key filed with @AffinityKeyMapped annotation in generated POJO class\n" +
-            "Note that a class can have only ONE key field annotated with @AffinityKeyMapped annotation");
-
-        TableColumn<PojoField, String> dbNameCol = Controls.tableColumn("DB Name", "dbName", "Field name in database");
-
-        TableColumn<PojoField, String> dbTypeNameCol = Controls.tableColumn("DB Type", "dbTypeName", "Field type in database");
-
-        TableColumn<PojoField, String> javaNameCol = Controls.textColumn("Java Name", "javaName", "Field name in POJO class",
-            new TextColumnValidator<PojoField>() {
-                @Override public boolean valid(PojoField rowVal, String newVal) {
-                    if (newVal.trim().isEmpty()) {
-                        MessageBox.warningDialog(owner, "Java name must be non empty!");
-
-                        return false;
-                    }
-
-                    for (PojoField field : curPojo.fields())
-                        if (rowVal != field && newVal.equals(field.javaName())) {
-                            MessageBox.warningDialog(owner, "Java name must be unique!");
-
-                            return false;
-                        }
-
-                    rowVal.javaName(newVal);
-
-                    return true;
-                }
-            });
-
-        TableColumn<PojoField, String> javaTypeNameCol = Controls.customColumn("Java Type", "javaTypeName",
-            "Field java type in POJO class", JavaTypeCell.cellFactory());
-
-        fieldsTbl = Controls.tableView("Select table to see table columns",
-            useFldCol, keyCol, akCol, dbNameCol, dbTypeNameCol, javaNameCol, javaTypeNameCol);
-
-        genPnl.add(Controls.splitPane(pojosTbl, fieldsTbl, 0.6), 3);
-
-        final GridPaneEx keyValPnl = Controls.paneEx(0, 0, 0, 0);
-        keyValPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-        keyValPnl.addColumn();
-        keyValPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-        keyValPnl.addColumn();
-
-        pkgTf = genPnl.addLabeled("Package:", Controls.textField("Package that will be used for POJOs generation"), 2);
-
-        outFolderTf = genPnl.addLabeled("Output Folder:", Controls.textField("Output folder for XML and POJOs files"));
-
-        genPnl.add(Controls.button("...", "Select output folder", new EventHandler<ActionEvent>() {
-            @Override public void handle(ActionEvent evt) {
-                DirectoryChooser dc = new DirectoryChooser();
-
-                try {
-                    File outFolder = new File(outFolderTf.getText());
-
-                    if (outFolder.exists())
-                        dc.setInitialDirectory(outFolder);
-                }
-                catch (Exception ignored) {
-                    // No-op.
-                }
-
-                File folder = dc.showDialog(owner);
-
-                if (folder != null)
-                    outFolderTf.setText(folder.getAbsolutePath());
-            }
-        }));
-
-        pojoIncludeKeysCh = genPnl.add(Controls.checkBox("Include key fields into value POJOs",
-            "If selected then include key fields into value object", true), 3);
-
-        pojoConstructorCh = genPnl.add(Controls.checkBox("Generate constructors for POJOs",
-            "If selected then generate empty and full constructors for POJOs", false), 3);
-
-        generateAliasesCh = genPnl.add(Controls.checkBox("Generate aliases for SQL fields",
-            "If selected then generate aliases for SQL fields with db names", true), 3);
-
-        xmlSingleFileCh = genPnl.add(Controls.checkBox("Write all configurations to a single XML file",
-            "If selected then all configurations will be saved into the file 'ignite-type-metadata.xml'", true), 3);
-
-        GridPaneEx regexPnl = Controls.paneEx(5, 5, 5, 5);
-        regexPnl.addColumn();
-        regexPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-        regexPnl.addColumn();
-        regexPnl.addColumn(100, 100, Double.MAX_VALUE, Priority.ALWAYS);
-
-        regexTf = regexPnl.addLabeled("  Regexp:", Controls.textField("Regular expression. For example: (\\w+)"));
-
-        replaceTf = regexPnl.addLabeled("  Replace with:", Controls.textField("Replace text. For example: $1_SomeText"));
-
-        final ComboBox<String> replaceCb = regexPnl.addLabeled("  Replace:", Controls.comboBox("Replacement target",
-            "Key class names", "Value class names", "Java names"));
-
-        regexPnl.add(Controls.buttonsPane(Pos.CENTER_LEFT, false,
-            Controls.button("Rename Selected", "Replaces each substring of this string that matches the given regular expression" +
-                    " with the given replacement",
-                new EventHandler<ActionEvent>() {
-                    @Override public void handle(ActionEvent evt) {
-                        if (!checkInput(regexTf, false, "Regular expression should not be empty!"))
-                            return;
-
-                        String sel = replaceCb.getSelectionModel().getSelectedItem();
-
-                        boolean isFields = "Java names".equals(sel) && curTbl == fieldsTbl;
-
-                        String src = isFields ? "fields" : "tables";
-
-                        String target = "\"" + sel + "\"";
-
-                        Collection<PojoDescriptor> selPojos = pojosTbl.getSelectionModel().getSelectedItems();
-
-                        Collection<PojoField> selFields = fieldsTbl.getSelectionModel().getSelectedItems();
-
-                        boolean isEmpty = isFields ? selFields.isEmpty() : selPojos.isEmpty();
-
-                        if (isEmpty) {
-                            MessageBox.warningDialog(owner, "Please select " + src + " to rename " + target + "!");
-
-                            return;
-                        }
-
-                        if (!MessageBox.confirmDialog(owner, "Are you sure you want to rename " + target +
-                            " for all selected " + src + "?"))
-                            return;
-
-                        String regex = regexTf.getText();
-
-                        String replace = replaceTf.getText();
-
-                        try {
-                            switch (replaceCb.getSelectionModel().getSelectedIndex()) {
-                                case 0:
-                                    renameKeyClassNames(selPojos, regex, replace);
-                                    break;
-
-                                case 1:
-                                    renameValueClassNames(selPojos, regex, replace);
-                                    break;
-
-                                default:
-                                    if (isFields)
-                                        renameFieldsJavaNames(selFields, regex, replace);
-                                    else
-                                        renamePojosJavaNames(selPojos, regex, replace);
-                            }
-                        }
-                        catch (Exception e) {
-                            MessageBox.errorDialog(owner, "Failed to rename " + target + "!", e);
-                        }
-                    }
-                }),
-            Controls.button("Reset Selected", "Revert changes for selected items to initial auto-generated values",
-                new EventHandler<ActionEvent>() {
-                    @Override public void handle(ActionEvent evt) {
-                        String sel = replaceCb.getSelectionModel().getSelectedItem();
-
-                        boolean isFields = "Java names".equals(sel) && curTbl == fieldsTbl;
-
-                        String src = isFields ? "fields" : "tables";
-
-                        String target = "\"" + sel + "\"";
-
-                        Collection<PojoDescriptor> selPojos = pojosTbl.getSelectionModel().getSelectedItems();
-
-                        Collection<PojoField> selFields = fieldsTbl.getSelectionModel().getSelectedItems();
-
-                        boolean isEmpty = isFields ? selFields.isEmpty() : selPojos.isEmpty();
-
-                        if (isEmpty) {
-                            MessageBox.warningDialog(owner, "Please select " + src + "to revert " + target + "!");
-
-                            return;
-                        }
-
-                        if (!MessageBox.confirmDialog(owner,
-                            "Are you sure you want to revert " + target + " for all selected " + src + "?"))
-                            return;
-
-                        switch (replaceCb.getSelectionModel().getSelectedIndex()) {
-                            case 0:
-                                revertKeyClassNames(selPojos);
-                                break;
-
-                            case 1:
-                                revertValueClassNames(selPojos);
-                                break;
-
-                            default:
-                                if (isFields)
-                                    revertFieldsJavaNames(selFields);
-                                else
-                                    revertPojosJavaNames(selPojos);
-                        }
-                    }
-                })
-        ), 2).setPadding(new Insets(0, 0, 0, 10));
-
-        pojosTbl.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<PojoDescriptor>() {
-            @Override public void changed(ObservableValue<? extends PojoDescriptor> val,
-                PojoDescriptor oldVal, PojoDescriptor newItem) {
-                if (newItem != null && newItem.parent() != null) {
-                    curPojo = newItem;
-
-                    fieldsTbl.setItems(curPojo.fields());
-                    fieldsTbl.getSelectionModel().clearSelection();
-
-                    keyValPnl.setDisable(false);
-                }
-                else {
-                    curPojo = null;
-                    fieldsTbl.setItems(NO_FIELDS);
-
-                    keyValPnl.setDisable(true);
-                }
-            }
-        });
-
-        pojosTbl.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override public void changed(ObservableValue<? extends Boolean> val, Boolean oldVal, Boolean newVal) {
-                if (newVal)
-                    curTbl = pojosTbl;
-            }
-        });
-
-        fieldsTbl.getSelectionModel().selectedIndexProperty().addListener(new ChangeListener<Number>() {
-            @Override public void changed(ObservableValue<? extends Number> val, Number oldVal, Number newVal) {
-                if (curPojo != null) {
-                    TableView.TableViewSelectionModel<PojoDescriptor> selMdl = pojosTbl.getSelectionModel();
-
-                    List<Integer> selIndices = new ArrayList<>(selMdl.getSelectedIndices());
-
-                    if (selIndices.size() > 1) {
-                        for (Integer idx : selIndices) {
-                            if (pojos.get(idx) != curPojo)
-                                selMdl.clearSelection(idx);
-                        }
-                    }
-                }
-            }
-        });
-
-        fieldsTbl.focusedProperty().addListener(new ChangeListener<Boolean>() {
-            @Override public void changed(ObservableValue<? extends Boolean> val, Boolean oldVal, Boolean newVal) {
-                if (newVal)
-                    curTbl = fieldsTbl;
-            }
-        });
-
-        genPnl.add(Controls.titledPane("Rename \"Key class name\", \"Value class name\" or  \"Java name\" for selected tables",
-            regexPnl, true), 3);
-
-        genLayerPnl = Controls.stackPane(genPnl);
-    }
-
-    /**
-     * Rename key class name for selected POJOs.
-     *
-     * @param selPojos Selected POJOs to rename.
-     * @param regex Regex to search.
-     * @param replace Text for replacement.
-     */
-    private void renameKeyClassNames(Collection<PojoDescriptor> selPojos, String regex, String replace) {
-        for (PojoDescriptor pojo : selPojos)
-            pojo.keyClassName(pojo.keyClassName().replaceAll(regex, replace));
-    }
-
-    /**
-     * Rename value class name for selected POJOs.
-     *
-     * @param selPojos Selected POJOs to rename.
-     * @param regex Regex to search.
-     * @param replace Text for replacement.
-     */
-    private void renameValueClassNames(Collection<PojoDescriptor> selPojos, String regex, String replace) {
-        for (PojoDescriptor pojo : selPojos)
-            pojo.valueClassName(pojo.valueClassName().replaceAll(regex, replace));
-    }
-
-    /**
-     * Rename fields java name for selected POJOs.
-     *
-     * @param selPojos Selected POJOs to rename.
-     * @param regex Regex to search.
-     * @param replace Text for replacement.
-     */
-    private void renamePojosJavaNames(Collection<PojoDescriptor> selPojos, String regex, String replace) {
-        for (PojoDescriptor pojo : selPojos)
-            for (PojoField field : pojo.fields())
-                field.javaName(field.javaName().replaceAll(regex, replace));
-    }
-
-    /**
-     * Rename fields java name for current POJO.
-     *
-     * @param selFields Selected fields for current POJO to rename.
-     * @param regex Regex to search.
-     * @param replace Text for replacement.
-     */
-    private void renameFieldsJavaNames(Collection<PojoField> selFields, String regex, String replace) {
-        for (PojoField field : selFields)
-            field.javaName(field.javaName().replaceAll(regex, replace));
-    }
-
-    /**
-     * Revert key class name for selected POJOs to initial value.
-     *
-     * @param selPojos Selected POJOs to revert.
-     */
-    private void revertKeyClassNames(Collection<PojoDescriptor> selPojos) {
-        for (PojoDescriptor pojo : selPojos)
-            pojo.revertKeyClassName();
-    }
-
-    /**
-     * Revert value class name for selected POJOs to initial value.
-     *
-     * @param selPojos Selected POJOs to revert.
-     */
-    private void revertValueClassNames(Collection<PojoDescriptor> selPojos) {
-        for (PojoDescriptor pojo : selPojos)
-            pojo.revertValueClassName();
-    }
-
-    /**
-     * Revert fields java name for selected POJOs to initial value.
-     *
-     * @param selPojos Selected POJOs to revert.
-     */
-    private void revertPojosJavaNames(Collection<PojoDescriptor> selPojos) {
-        for (PojoDescriptor pojo : selPojos)
-            pojo.revertJavaNames();
-    }
-
-    /**
-     * Revert fields java name for current POJO to initial value.
-     *
-     * @param selFields Selected POJO fields to revert.
-     */
-    private void revertFieldsJavaNames(Collection<PojoField> selFields) {
-        for (PojoField field : selFields)
-            field.resetJavaName();
-    }
-
-    /**
-     * @return POJOs checked in table-tree-view.
-     */
-    private Collection<PojoDescriptor> checkedPojos() {
-        Collection<PojoDescriptor> res = new ArrayList<>();
-
-        for (PojoDescriptor pojo : pojos)
-            if (pojo.checked())
-                res.add(pojo);
-
-        return res;
-    }
-
-    /**
-     * Gets string property.
-     *
-     * @param key Property key.
-     * @param dflt Default value.
-     * @return Property value as string.
-     */
-    private String getStringProp(String key, String dflt) {
-        String val = prefs.getProperty(key);
-
-        if (val != null)
-            return val;
-
-        return dflt;
-    }
-
-    /**
-     * Sets string property.
-     *
-     * @param key Property key.
-     * @param val Value to set.
-     */
-    private void setStringProp(String key, String val) {
-        prefs.put(key, val);
-    }
-
-    /**
-     * Gets int property.
-     *
-     * @param key Property key.
-     * @param dflt Default value.
-     * @return Property value as int.
-     */
-    private int getIntProp(String key, int dflt) {
-        String val = prefs.getProperty(key);
-
-        if (val != null)
-            try {
-                return Integer.parseInt(val);
-            }
-            catch (NumberFormatException ignored) {
-                return dflt;
-            }
-
-        return dflt;
-    }
-
-    /**
-     * Sets int property.
-     *
-     * @param key Property key.
-     * @param val Value to set.
-     */
-    private void setIntProp(String key, int val) {
-        prefs.put(key, String.valueOf(val));
-    }
-
-    /**
-     * Gets boolean property.
-     *
-     * @param key Property key.
-     * @param dflt Default value.
-     * @return Property value as boolean.
-     */
-    private boolean getBoolProp(String key, boolean dflt) {
-        String val = prefs.getProperty(key);
-
-        if (val != null)
-            return Boolean.parseBoolean(val);
-
-        return dflt;
-    }
-
-    /**
-     * Sets boolean property.
-     *
-     * @param key Property key.
-     * @param val Value to set.
-     */
-    private void setBoolProp(String key, boolean val) {
-        prefs.put(key, String.valueOf(val));
-    }
-
-    /**
-     * Resolve path.
-     *
-     * @param key Preferences key.
-     * @param dflt Default value.
-     * @return String with full file path or default value.
-     */
-    private String resolveFilePath(String key, String dflt) {
-        String path = prefs.getProperty(key);
-
-        if (path != null) {
-            File file = U.resolveIgnitePath(path);
-
-            if (file != null)
-                return file.getAbsolutePath();
-        }
-
-        return dflt;
-    }
-
-    /** {@inheritDoc} */
-    @Override public void start(Stage primaryStage) {
-        owner = primaryStage;
-
-        if (prefsFile.exists())
-            try (BufferedInputStream in = new BufferedInputStream(new FileInputStream(prefsFile))) {
-                prefs.load(in);
-            }
-            catch (IOException e) {
-                log.log(Level.SEVERE, "Failed to load preferences. Default preferences will be used", e);
-            }
-
-        // Load custom preferences.
-        List<String> params = getParameters().getRaw();
-
-        if (!params.isEmpty()) {
-            String customPrefsFileName = params.get(0);
-
-            if (customPrefsFileName.isEmpty())
-                log.log(Level.WARNING, "Path to file with custom preferences is not specified.");
-            else {
-                File customPrefsFile = U.resolveIgnitePath(customPrefsFileName);
-
-                if (customPrefsFile == null)
-                    log.log(Level.WARNING, "Failed to resolve path to file with custom preferences: " +
-                        customPrefsFileName);
-                else {
-                    Properties customPrefs = new Properties();
-
-                    try (BufferedInputStream in = new BufferedInputStream(new FileInputStream(customPrefsFile))) {
-                        customPrefs.load(in);
-                    }
-                    catch (IOException e) {
-                        log.log(Level.SEVERE, "Failed to load custom preferences.", e);
-                    }
-
-                    prefs.putAll(customPrefs);
-                }
-            }
-        }
-
-        // Restore presets.
-        for (Preset preset : presets) {
-            String key = "presets." + preset.pref + ".";
-
-            preset.jar = getStringProp(key + "jar", preset.jar);
-            preset.drv = getStringProp(key + "drv", preset.drv);
-            preset.url = getStringProp(key + "url", preset.url);
-            preset.user = getStringProp(key + "user", preset.user);
-        }
-
-        primaryStage.setTitle("Apache Ignite Auto Schema Import Utility");
-
-        primaryStage.getIcons().addAll(
-            Controls.image("ignite", 16),
-            Controls.image("ignite", 24),
-            Controls.image("ignite", 32),
-            Controls.image("ignite", 48),
-            Controls.image("ignite", 64),
-            Controls.image("ignite", 128));
-
-        pi = Controls.progressIndicator(50);
-
-        createGeneratePane();
-
-        hdrPane = createHeaderPane();
-        rootPane = Controls.borderPane(hdrPane, createConnectionPane(), createButtonsPane(), null, null);
-
-        primaryStage.setScene(Controls.scene(rootPane));
-
-        primaryStage.setWidth(650);
-        primaryStage.setMinWidth(650);
-
-        primaryStage.setHeight(650);
-        primaryStage.setMinHeight(650);
-
-        prev();
-
-        // Restore window pos and size.
-        if (prefs.getProperty(PREF_WINDOW_X) != null) {
-            int x = getIntProp(PREF_WINDOW_X, 100);
-            int y = getIntProp(PREF_WINDOW_Y, 100);
-            int w = getIntProp(PREF_WINDOW_WIDTH, 650);
-            int h = getIntProp(PREF_WINDOW_HEIGHT, 650);
-
-            // Ensure that window fit any available screen.
-            if (!Screen.getScreensForRectangle(x, y, w, h).isEmpty()) {
-                primaryStage.setX(x);
-                primaryStage.setY(y);
-
-                primaryStage.setWidth(w);
-                primaryStage.setHeight(h);
-            }
-        }
-        else
-            primaryStage.centerOnScreen();
-
-        String userHome = System.getProperty("user.home").replace('\\', '/');
-
-        // Restore connection pane settings.
-        rdbmsCb.getSelectionModel().select(getIntProp(PREF_JDBC_DB_PRESET, 0));
-        jdbcDrvJarTf.setText(resolveFilePath(PREF_JDBC_DRIVER_JAR, "h2.jar"));
-        jdbcDrvClsTf.setText(getStringProp(PREF_JDBC_DRIVER_CLASS, "org.h2.Driver"));
-        jdbcUrlTf.setText(getStringProp(PREF_JDBC_URL, "jdbc:h2:" + userHome + "/ignite-schema-import/db"));
-        userTf.setText(getStringProp(PREF_JDBC_USER, "sa"));
-
-        // Restore generation pane settings.
-        outFolderTf.setText(resolveFilePath(PREF_OUT_FOLDER, userHome + "/ignite-schema-import/out"));
-
-        pkgTf.setText(getStringProp(PREF_POJO_PACKAGE, "org.apache.ignite"));
-        pojoIncludeKeysCh.setSelected(getBoolProp(PREF_POJO_INCLUDE, true));
-        pojoConstructorCh.setSelected(getBoolProp(PREF_POJO_CONSTRUCTOR, false));
-        generateAliasesCh.setSelected(getBoolProp(PREF_GENERATE_ALIASES, true));
-
-        xmlSingleFileCh.setSelected(getBoolProp(PREF_XML_SINGLE, true));
-
-        regexTf.setText(getStringProp(PREF_NAMING_PATTERN, "(\\w+)"));
-        replaceTf.setText(getStringProp(PREF_NAMING_REPLACE, "$1_SomeText"));
-
-        primaryStage.show();
-    }
-
-    /**
-     * Save preset.
-     *
-     * @param preset Preset to save.
-     */
-    private void savePreset(Preset preset) {
-        String key = "presets." + preset.pref + ".";
-
-        preset.jar = jdbcDrvJarTf.getText();
-        setStringProp(key + "jar", preset.jar);
-
-        preset.drv = jdbcDrvClsTf.getText();
-        setStringProp(key + "drv", preset.drv);
-
-        preset.url = jdbcUrlTf.getText();
-        setStringProp(key + "url", preset.url);
-
-        preset.user = userTf.getText();
-        setStringProp(key + "user", preset.user);
-
-        savePreferences();
-    }
-
-    /**
-     * Save user preferences.
-     */
-    private void savePreferences() {
-        try (FileOutputStream out = new FileOutputStream(prefsFile)) {
-            prefs.store(out, "Apache Ignite Schema Import Utility");
-        }
-        catch (IOException e) {
-            MessageBox.errorDialog(owner, "Failed to save preferences!", e);
-        }
-    }
-
-    /** {@inheritDoc} */
-    @Override public void stop() throws Exception {
-        // Save window pos and size.
-        setIntProp(PREF_WINDOW_X, (int)owner.getX());
-        setIntProp(PREF_WINDOW_Y, (int)owner.getY());
-        setIntProp(PREF_WINDOW_WIDTH, (int)owner.getWidth());
-        setIntProp(PREF_WINDOW_HEIGHT, (int)owner.getHeight());
-
-        // Save connection pane settings.
-        setIntProp(PREF_JDBC_DB_PRESET, rdbmsCb.getSelectionModel().getSelectedIndex());
-        setStringProp(PREF_JDBC_DRIVER_JAR, jdbcDrvJarTf.getText());
-        setStringProp(PREF_JDBC_DRIVER_CLASS, jdbcDrvClsTf.getText());
-        setStringProp(PREF_JDBC_URL, jdbcUrlTf.getText());
-        setStringProp(PREF_JDBC_USER, userTf.getText());
-
-        // Save generation pane settings.
-        setStringProp(PREF_OUT_FOLDER, outFolderTf.getText());
-
-        setStringProp(PREF_POJO_PACKAGE, pkgTf.getText());
-        setBoolProp(PREF_POJO_INCLUDE, pojoIncludeKeysCh.isSelected());
-        setBoolProp(PREF_POJO_CONSTRUCTOR, pojoConstructorCh.isSelected());
-        setBoolProp(PREF_GENERATE_ALIASES, generateAliasesCh.isSelected());
-
-        setBoolProp(PREF_XML_SINGLE, xmlSingleFileCh.isSelected());
-
-        setStringProp(PREF_NAMING_PATTERN, regexTf.getText());
-        setStringProp(PREF_NAMING_REPLACE, replaceTf.getText());
-
-        savePreferences();
-    }
-
-    /** Presets for database settings. */
-    private static class Preset {
-        /** Name in preferences. */
-        private String pref;
-
-        /** RDBMS name to show on screen. */
-        private String name;
-
-        /** Path to JDBC driver jar. */
-        private String jar;
-
-        /** JDBC driver class name. */
-        private String drv;
-
-        /** JDBC URL. */
-        private String url;
-
-        /** User name. */
-        private String user;
-
-        /**
-         * Preset constructor.
-         *
-         * @param pref Name in preferences.
-         * @param name RDBMS name to show on screen.
-         * @param jar Path to JDBC driver jar..
-         * @param drv JDBC driver class name.
-         * @param url JDBC URL.
-         * @param user User name.
-         */
-        Preset(String pref, String name, String jar, String drv, String url, String user) {
-            this.pref = pref;
-            this.name = name;
-            this.jar = jar;
-            this.drv = drv;
-            this.url = url;
-            this.user = user;
-        }
-
-        /** {@inheritDoc} */
-        @Override public String toString() {
-            return name;
-        }
-    }
-
-    /**
-     * Special table cell to select possible java type conversions.
-     */
-    private static class JavaTypeCell extends TableCell<PojoField, String> {
-        /** Combo box. */
-        private final ComboBox<String> comboBox;
-
-        /**
-         * Creates a ComboBox cell factory for use in TableColumn controls.
-         *
-         * @return Cell factory for cell with java types combobox.
-         */
-        public static Callback<TableColumn<PojoField, String>, TableCell<PojoField, String>> cellFactory() {
-            return new Callback<TableColumn<PojoField, String>, TableCell<PojoField, String>>() {
-                @Override public TableCell<PojoField, String> call(TableColumn<PojoField, String> col) {
-                    return new JavaTypeCell();
-                }
-            };
-        }
-
-        /**
-         * Default constructor.
-         */
-        private JavaTypeCell() {
-            comboBox = new ComboBox<>(FXCollections.<String>emptyObservableList());
-
-            comboBox.valueProperty().addListener(new ChangeListener<String>() {
-                @Override public void changed(ObservableValue<? extends String> val, String oldVal, String newVal) {
-                    if (isEditing())
-                        commitEdit(newVal);
-                }
-            });
-
-            getStyleClass().add("combo-box-table-cell");
-        }
-
-        /** {@inheritDoc} */
-        @Override public void startEdit() {
-            if (comboBox.getItems().size() > 1) {
-                comboBox.getSelectionModel().select(getItem());
-
-                super.startEdit();
-
-                setText(null);
-                setGraphic(comboBox);
-            }
-        }
-
-        /** {@inheritDoc} */
-        @Override public void cancelEdit() {
-            super.cancelEdit();
-
-            setText(getItem());
-
-            setGraphic(null);
-        }
-
-        /** {@inheritDoc} */
-        @Override public void updateItem(String item, boolean empty) {
-            super.updateItem(item, empty);
-
-            setGraphic(null);
-            setText(null);
-
-            if (!empty) {
-                setText(item);
-
-                TableRow row = getTableRow();
-
-                if (row != null) {
-                    PojoField pojo = (PojoField)row.getItem();
-
-                    if (pojo != null) {
-                        comboBox.setItems(pojo.conversions());
-                        comboBox.getSelectionModel().select(pojo.javaTypeName());
-                    }
-                }
-            }
-        }
-    }
-
-    /**
-     * Special list view cell to select loaded schemas.
-     */
-    private static class SchemaCell implements Callback<SchemaDescriptor, ObservableValue<Boolean>> {
-        /** {@inheritDoc} */
-        @Override public ObservableValue<Boolean> call(SchemaDescriptor item) {
-            return item.selected();
-        }
-    }
-
-    /**
-     * Special table cell to select schema or table.
-     */
-    private static class PojoDescriptorCell extends TableCell<PojoDescriptor, Boolean> {
-        /** Previous POJO bound to cell. */
-        private PojoDescriptor prevPojo;
-
-        /** Previous cell graphic. */
-        private Pane prevGraphic;
-
-        /**
-         * Creates a ComboBox cell factory for use in TableColumn controls.
-         *
-         * @return Cell factory for schema / table selection.
-         */
-        public static Callback<TableColumn<PojoDescriptor, Boolean>, TableCell<PojoDescriptor, Boolean>> cellFactory() {
-            return new Callback<TableColumn<PojoDescriptor, Boolean>, TableCell<PojoDescriptor, Boolean>>() {
-                @Override public TableCell<PojoDescriptor, Boolean> call(TableColumn<PojoDescriptor, Boolean> col) {
-                    return new PojoDescriptorCell();
-                }
-            };
-        }
-
-        /** {@inheritDoc} */
-        @Override public void updateItem(Boolean item, boolean empty) {
-            super.updateItem(item, empty);
-
-            setGraphic(null);
-
-            if (!empty) {
-                TableRow row = getTableRow();
-
-                if (row != null) {
-                    final PojoDescriptor pojo = (PojoDescriptor)row.getItem();
-
-                    if (pojo != null) {
-                        if (prevGraphic == null || pojo != prevPojo) {
-                            boolean isTbl = pojo.parent() != null;
-
-                            CheckBox ch = new CheckBox();
-                            ch.setAllowIndeterminate(false);
-                            ch.indeterminateProperty().bindBidirectional(pojo.indeterminate());
-                            ch.selectedProperty().bindBidirectional(pojo.useProperty());
-
-                            Label lb = new Label(isTbl ? pojo.table() : pojo.schema());
-
-                            Pane pnl = new HBox(5);
-                            pnl.setPadding(new Insets(0, 0, 0, isTbl ? 25 : 5));
-                            pnl.getChildren().addAll(ch, lb);
-
-                            prevPojo = pojo;
-                            prevGraphic = pnl;
-                        }
-
-                        setGraphic(prevGraphic);
-                    }
-                }
-            }
-        }
-    }
-
-    /**
-     * Special table cell to select &quot;used&quot; fields for code generation.
-     */
-    private static class PojoFieldUseCell extends TableCell<PojoField, Boolean> {
-        /** Previous POJO field bound to cell. */
-        private PojoField prevField;
-
-        /** Previous cell graphic. */
-        private CheckBox prevGraphic;
-
-        /**
-         * Creates a ComboBox cell factory for use in TableColumn controls.
-         *
-         * @return Cell factory for used fields selection.
-         */
-        public static Callback<TableColumn<PojoField, Boolean>, TableCell<PojoField, Boolean>> cellFactory() {
-            return new Callback<TableColumn<PojoField, Boolean>, TableCell<PojoField, Boolean>>() {
-                @Override public TableCell<PojoField, Boolean> call(TableColumn<PojoField, Boolean> col) {
-                    return new PojoFieldUseCell();
-                }
-            };
-        }
-
-        /** {@inheritDoc} */
-        @Override public void updateItem(Boolean item, boolean empty) {
-            super.updateItem(item, empty);
-
-            setGraphic(null);
-
-            if (!empty) {
-                TableRow row = getTableRow();
-
-                if (row != null) {
-                    final PojoField field = (PojoField)row.getItem();
-
-                    if (field != null) {
-                        if (prevGraphic == null || prevField != field) {
-                            setAlignment(Pos.CENTER);
-
-                            CheckBox ch = new CheckBox();
-                            ch.setDisable(!field.nullable());
-                            ch.selectedProperty().bindBidirectional(field.useProperty());
-
-                            prevField = field;
-                            prevGraphic = ch;
-                        }
-
-                        setGraphic(prevGraphic);
-                    }
-                }
-            }
-        }
-    }
-}


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