datafeaturebar.java

来自「Java的面向对象数据库系统的源代码」· Java 代码 · 共 125 行

// You can redistribute this software and/or modify it under the terms of
// the Ozone Library License version 1 published by ozone-db.org.
//
// The original code and portions created by SMB are
// Copyright (C) 1997-@year@ by SMB GmbH. All rights reserved.
//
// $Id: DataFeatureBar.java,v 1.4 2003/04/27 13:49:40 per_nyfelt Exp $
package org.ozoneDB.adminGui.feature.data;

import org.ozoneDB.adminGui.res.Images;
import org.ozoneDB.adminGui.main.AdminGui;
import org.ozoneDB.adminGui.widget.MessageBox;
import org.ozoneDB.adminGui.util.ThreadWorker;
import org.ozoneDB.adminGui.feature.ActionBar;
import org.ozoneDB.adminGui.feature.InfoPanel;

import javax.swing.*;
import java.awt.*;
import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.io.File;

/**
 * @author Per Nyfelt
 */
public class DataFeatureBar extends ActionBar {

    private InfoPanel dataInfoPanel;
    private GridBagConstraints gbc = new GridBagConstraints();

    public DataFeatureBar(DataInfoPanel dataInfoPanel) {
        this.dataInfoPanel = dataInfoPanel;
        addComponents();
    }

    protected void addComponents() {

        this.removeAll();
        //gbc.gridx = GridBagConstraints.REMAINDER;
        gbc.insets = new Insets(1, 5, 1, 5);
        gbc.fill = GridBagConstraints.HORIZONTAL;
        gbc.gridy = 0;

        // Add label
        //gbc.anchor = GridBagConstraints.SOUTHWEST;
        //gbc.weighty = .3;
        add(new ActionButton("named objects", Images.DATA_OBJECT_NAMES, new NamedObjectsLister()), gbc);

        gbc.gridy++;
        add(new ActionButton("backup", Images.DATA_BACKUP, new BackupListener()), gbc);

        gbc.gridy++;
        add(new ActionButton("restore", Images.DATA_RESTORE, new RestoreListener()), gbc);
    }

    private class NamedObjectsLister implements ActionListener {
        public void actionPerformed(ActionEvent event) {
            System.out.println("list all named objects");
            String[] objectNames = new String[0];
            try {
                objectNames = AdminGui.instance().getDb().objectNames();
            } catch (Exception e) {
                dataInfoPanel.setDisplay(new JTextArea("Unable to retrieve object names: " + e.getMessage()));
            }
            if (objectNames.length == 0) {
                dataInfoPanel.setDisplay(new JTextArea("No named objects found."));
            } else {
                JTextArea display = new JTextArea();
                for (int i = 0; i < objectNames.length; i++) {
                    display.append(objectNames[i] + "\n");
                }
                dataInfoPanel.setDisplay(display);
            }
        }
    }

    private class BackupListener implements ActionListener {
        public void actionPerformed(ActionEvent event) {
            System.out.println("perform backup");
            ThreadWorker worker = new ThreadWorker() {
                public Object construct() {
                    JFileChooser fileChooser = new JFileChooser();
                    fileChooser.setDialogType(JFileChooser.SAVE_DIALOG);
                    fileChooser.showOpenDialog(DataFeatureBar.this);
                    return fileChooser.getSelectedFile();
                }

                public void finished() {
                    try {
                        BackupWorker.backup((File) get());
                    } catch (Exception e) {
                        e.printStackTrace();
                        MessageBox.showError("Backup failed", "Unable to backup: " + e);
                    }
                }
            };
            worker.start();
        }
    }

    private class RestoreListener implements ActionListener {
        public void actionPerformed(ActionEvent event) {
            System.out.println("perform restore");

            ThreadWorker worker = new ThreadWorker() {
                public Object construct() {
                    JFileChooser fileChooser = new JFileChooser();
                    fileChooser.showOpenDialog(DataFeatureBar.this);
                    return fileChooser.getSelectedFile();
                }

                public void finished() {
                    try {
                        BackupWorker.restore((File) get());
                    } catch (Exception e) {
                        MessageBox.showError("Restore failed", "Unable to restore: " + e);
                    }
                }
            };
            worker.start();

        }
    }
}