com.safi.workshop.navigator.db.ConnectionTreeLabelProvider.java Source code

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Here is the source code for com.safi.workshop.navigator.db.ConnectionTreeLabelProvider.java

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/*
 * Copyright (C) 2006 SQL Explorer Development Team
 * http://sourceforge.net/projects/eclipsesql
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */
package com.safi.workshop.navigator.db;

import java.text.SimpleDateFormat;
import java.util.Date;

import org.eclipse.jface.viewers.LabelProvider;
import org.eclipse.swt.graphics.Image;

import com.safi.db.Query;
import com.safi.db.QueryParameter;
import com.safi.workshop.sqlexplorer.Messages;
import com.safi.workshop.sqlexplorer.dbproduct.Alias;
import com.safi.workshop.sqlexplorer.dbproduct.DriverManager;
import com.safi.workshop.sqlexplorer.dbproduct.ManagedDriver;
import com.safi.workshop.sqlexplorer.dbproduct.SQLConnection;
import com.safi.workshop.sqlexplorer.dbproduct.User;
import com.safi.workshop.sqlexplorer.util.ImageUtil;

/**
 * Label provider for database structure outline.
 * 
 * @author Davy Vanherbergen
 */
public class ConnectionTreeLabelProvider extends LabelProvider {

    private Image _driverImage = ImageUtil.getImage("Images.DriverIcon");

    private Image _inactiveAliasImage = ImageUtil.getImage("Images.AliasIcon");

    private Image _activeAliasImage = ImageUtil.getImage("Images.ConnectedAliasIcon");

    private Image _sessionImage = ImageUtil.getImage("Images.ConnectionIcon");

    private Image _queryImage = ImageUtil.getImage("Images.QueryIcon");

    private Image _queryParamImage = ImageUtil.getImage("Images.QueryParamIcon");

    private Image _dbResImage = ImageUtil.getImage("Images.DBResourcesIcon");

    @Override
    public void dispose() {
        super.dispose();
        ImageUtil.disposeImage("Images.AliasIcon");
        ImageUtil.disposeImage("Images.ConnectedAliasIcon");
        ImageUtil.disposeImage("Images.ConnectionIcon");
        ImageUtil.disposeImage("Images.DriverIcon");
        ImageUtil.disposeImage("Images.QueryIcon");
        ImageUtil.disposeImage("Images.QueryParamIcon");
        ImageUtil.disposeImage("Images.DBResourcesIcon");
    }

    /**
     * Return the image used for the given node.
     * 
     * @see org.eclipse.jface.viewers.ILabelProvider#getImage(java.lang.Object)
     */
    @Override
    public Image getImage(Object element) {
        if (element instanceof Alias) {
            Alias alias = (Alias) element;

            for (User user : alias.getUsers())
                if (!user.getSessions().isEmpty())
                    return _activeAliasImage;
            return _inactiveAliasImage;
        } else if (element instanceof ManagedDriver) {
            return _driverImage;
        } else if (element instanceof Query)
            return _queryImage;
        else if (element instanceof QueryParameter)
            return _queryParamImage;
        else if (element instanceof DriverManager)
            return _dbResImage;
        return _sessionImage;
    }

    /**
     * Return the text to display
     * 
     * @see org.eclipse.jface.viewers.ILabelProvider#getText(java.lang.Object)
     */
    @Override
    public String getText(Object element) {
        if (element instanceof Alias) {
            Alias alias = (Alias) element;

            String label = alias.getName();
            int numSessions = 0;

            for (User user : alias.getUsers())
                numSessions += user.getConnections().size();

            if (numSessions == 1)
                return label + " (" + numSessions + " "
                        + Messages.getString("ConnectionsView.ConnectedAlias.single.Postfix") + ")";

            if (numSessions > 1)
                return label + " (" + numSessions + " "
                        + Messages.getString("ConnectionsView.ConnectedAlias.multiple.Postfix") + ")";

            return label;

        } else if (element instanceof User) {
            User user = (User) element;
            return user.getUserName();

        } else if (element instanceof SQLConnection) {
            SQLConnection connection = (SQLConnection) element;
            String label;

            if (connection.getDescription() == null) {
                SimpleDateFormat fmt = new SimpleDateFormat("HH:mm:ss");
                label = Messages.getString("ConnectionsView.ConnectedAlias.ConnectedSince") + ' '
                        + fmt.format(new Date(connection.getCreatedTime()));
            } else
                label = Messages.getString("ConnectionsView.ConnectedAlias.Connection") + ' '
                        + connection.getDescription();

            if (connection.isPooled())
                label += ' ' + Messages.getString("ConnectionsView.ConnectedAlias.Pooled");
            return label;
        } else if (element instanceof ManagedDriver) {
            return ((ManagedDriver) element).getId() + " driver: " + ((ManagedDriver) element).getDriverClassName();
        } else if (element instanceof Query) {
            return ((Query) element).getName();
        } else if (element instanceof QueryParameter) {
            return ((QueryParameter) element).getName();
        } else if (element instanceof DriverManager) {
            return "DB Resources";
        }

        return null;
    }
}