org.netxms.ui.eclipse.alarmviewer.widgets.helpers.AlarmComparator.java Source code

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Here is the source code for org.netxms.ui.eclipse.alarmviewer.widgets.helpers.AlarmComparator.java

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/**
 * NetXMS - open source network management system
 * Copyright (C) 2003-2012 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.widgets.helpers;

import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.TableColumn;
import org.netxms.client.NXCSession;
import org.netxms.client.events.Alarm;
import org.netxms.client.objects.AbstractObject;
import org.netxms.ui.eclipse.alarmviewer.Messages;
import org.netxms.ui.eclipse.alarmviewer.widgets.AlarmList;
import org.netxms.ui.eclipse.shared.ConsoleSharedData;

/**
 * Comparator for alarm list
 */
public class AlarmComparator extends ViewerComparator {
    /* (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 e1, Object e2) {
        TableColumn sortColumn = ((TableViewer) viewer).getTable().getSortColumn();
        if (sortColumn == null)
            return 0;

        int rc;
        switch ((Integer) sortColumn.getData("ID")) //$NON-NLS-1$
        {
        case AlarmList.COLUMN_SEVERITY:
            rc = ((Alarm) e1).getCurrentSeverity().compareTo(((Alarm) e2).getCurrentSeverity());
            break;
        case AlarmList.COLUMN_STATE:
            rc = Integer.signum(((Alarm) e1).getState() - ((Alarm) e2).getState());
            break;
        case AlarmList.COLUMN_SOURCE:
            AbstractObject obj1 = ((NXCSession) ConsoleSharedData.getSession())
                    .findObjectById(((Alarm) e1).getSourceObjectId());
            AbstractObject obj2 = ((NXCSession) ConsoleSharedData.getSession())
                    .findObjectById(((Alarm) e2).getSourceObjectId());
            String name1 = (obj1 != null) ? obj1.getObjectName() : Messages.get().AlarmComparator_Unknown;
            String name2 = (obj2 != null) ? obj2.getObjectName() : Messages.get().AlarmComparator_Unknown;
            rc = name1.compareToIgnoreCase(name2);
            break;
        case AlarmList.COLUMN_MESSAGE:
            rc = ((Alarm) e1).getMessage().compareToIgnoreCase(((Alarm) e2).getMessage());
            break;
        case AlarmList.COLUMN_COUNT:
            rc = Integer.signum(((Alarm) e1).getRepeatCount() - ((Alarm) e2).getRepeatCount());
            break;
        case AlarmList.COLUMN_CREATED:
            rc = ((Alarm) e1).getCreationTime().compareTo(((Alarm) e2).getCreationTime());
            break;
        case AlarmList.COLUMN_LASTCHANGE:
            rc = ((Alarm) e1).getLastChangeTime().compareTo(((Alarm) e2).getLastChangeTime());
            break;
        default:
            rc = 0;
            break;
        }
        int dir = ((TableViewer) viewer).getTable().getSortDirection();
        return (dir == SWT.UP) ? rc : -rc;
    }
}