org.netxms.ui.eclipse.alarmviewer.views.helpers.EventTreeComparator.java Source code

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Here is the source code for org.netxms.ui.eclipse.alarmviewer.views.helpers.EventTreeComparator.java

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/**
 * NetXMS - open source network management system
 * Copyright (C) 2003-2014 Victor Kirhenshtein
 *
 * 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 2 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, write to the Free Software
 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
package org.netxms.ui.eclipse.alarmviewer.views.helpers;

import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.TreeColumn;
import org.netxms.client.NXCSession;
import org.netxms.client.events.EventInfo;
import org.netxms.ui.eclipse.alarmviewer.views.AlarmDetails;
import org.netxms.ui.eclipse.shared.ConsoleSharedData;

/**
 * Comparator for event tree
 */
public class EventTreeComparator extends ViewerComparator {
    private final NXCSession session = (NXCSession) ConsoleSharedData.getSession();

    /* (non-Javadoc)
     * @see org.eclipse.jface.viewers.ViewerComparator#compare(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
     */
    @Override
    public int compare(Viewer viewer, Object o1, Object o2) {
        TreeColumn sortColumn = ((TreeViewer) viewer).getTree().getSortColumn();
        if (sortColumn == null)
            return 0;

        EventInfo e1 = (EventInfo) o1;
        EventInfo e2 = (EventInfo) o2;

        int result;
        switch ((Integer) sortColumn.getData("ID")) //$NON-NLS-1$
        {
        case AlarmDetails.EV_COLUMN_MESSAGE:
            result = e1.getMessage().compareToIgnoreCase(e2.getMessage());
            break;
        case AlarmDetails.EV_COLUMN_NAME:
            result = e1.getName().compareToIgnoreCase(e2.getName());
            break;
        case AlarmDetails.EV_COLUMN_SEVERITY:
            result = e1.getSeverity() - e2.getSeverity();
            break;
        case AlarmDetails.EV_COLUMN_SOURCE:
            result = session.getObjectName(e1.getSourceObjectId())
                    .compareToIgnoreCase(session.getObjectName(e2.getSourceObjectId()));
            break;
        case AlarmDetails.EV_COLUMN_TIMESTAMP:
            result = e1.getTimeStamp().compareTo(e2.getTimeStamp());
            break;
        default:
            result = 0;
            break;
        }
        return (((TreeViewer) viewer).getTree().getSortDirection() == SWT.UP) ? result : -result;
    }
}