DatabaseChooserPanel.java

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package com.wcs.netbeans.liquiface.ui.wizards.panel;

/*
 * #%L
 * Liquiface - GUI for Liquibase
 * %%
 * Copyright (C) 2013 Webstar Csoport Kft.
 * %%
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the 
 * License, or (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public 
 * License along with this program.  If not, see
 * <http://www.gnu.org/licenses/gpl-3.0.html>.
 * #L%
 */

import com.wcs.netbeans.liquiface.util.DatabaseConnectionItem;
import com.wcs.netbeans.liquiface.database.DatabaseConnectionFactory;
import javax.swing.ComboBoxModel;
import javax.swing.DefaultComboBoxModel;
import javax.swing.JPanel;
import org.netbeans.api.db.explorer.DatabaseConnection;

public class DatabaseChooserPanel extends JPanel {

    private ComboBoxModel databases;
    private DatabaseConnection selectedDatabase;

    public DatabaseConnection getSelectedDatabase() {
        return selectedDatabase;
    }

    private ComboBoxModel getDatabases() {
        if (databases == null) {
            DatabaseConnection[] netbeansConnections = DatabaseConnectionFactory.getInstance().getNetbeansConnections();
            DatabaseConnectionItem[] items = new DatabaseConnectionItem[netbeansConnections.length];
            int i = 0;
            for (DatabaseConnection conn : netbeansConnections) {
                items[i++] = new DatabaseConnectionItem(conn);
            }
            databases = new DefaultComboBoxModel(items);
        }
        return databases;
    }

    /**
     * Creates new form LoadDatabaseVisualPanel1
     */
    public DatabaseChooserPanel() {
        initComponents();
        initWithFirstDatabase();
    }

    private void initWithFirstDatabase() {
        if (getDatabases().getSize() > 0) {
            databasesCombo.setSelectedIndex(0);
        }
    }

    @Override
    public String getName() {
        return "Select database";
    }

    private void setDatabase(int index) {
        DatabaseConnectionItem item = (DatabaseConnectionItem) databases.getElementAt(index);
        if (item != null) {
            selectedDatabase = item.getDatabaseConnection();
            System.out.format("selectedDatabase=%s%n", selectedDatabase.getName());
        }
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    // <editor-fold defaultstate="collapsed" desc="Generated Code">//GEN-BEGIN:initComponents
    private void initComponents() {

        databaseLabel = new javax.swing.JLabel();
        databasesCombo = new javax.swing.JComboBox();

        org.openide.awt.Mnemonics.setLocalizedText(databaseLabel, org.openide.util.NbBundle.getMessage(DatabaseChooserPanel.class, "DatabaseChooserPanel.databaseLabel.text")); // NOI18N

        databasesCombo.setModel(getDatabases());
        databasesCombo.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                onDatabaseSelected(evt);
            }
        });

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(this);
        this.setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(26, 26, 26)
                .addComponent(databaseLabel)
                .addGap(4, 4, 4)
                .addComponent(databasesCombo, 0, 639, Short.MAX_VALUE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(57, 57, 57)
                .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
                    .addComponent(databaseLabel)
                    .addComponent(databasesCombo, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE))
                .addContainerGap(216, Short.MAX_VALUE))
        );
    }// </editor-fold>//GEN-END:initComponents

    private void onDatabaseSelected(java.awt.event.ActionEvent evt) {//GEN-FIRST:event_onDatabaseSelected
        if (evt.getSource() == databasesCombo) {
            if (databasesCombo.getSelectedIndex() < 0) {
                return;
            }            
            setDatabase(databasesCombo.getSelectedIndex());
        }
    }//GEN-LAST:event_onDatabaseSelected
    // Variables declaration - do not modify//GEN-BEGIN:variables
    private javax.swing.JLabel databaseLabel;
    private javax.swing.JComboBox databasesCombo;
    // End of variables declaration//GEN-END:variables
}