org.netxms.ui.eclipse.datacollection.widgets.internal.ThresholdTreeComparator.java Source code

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Here is the source code for org.netxms.ui.eclipse.datacollection.widgets.internal.ThresholdTreeComparator.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.datacollection.widgets.internal;

import java.util.Date;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.jface.viewers.ViewerComparator;
import org.eclipse.swt.SWT;
import org.netxms.client.NXCSession;
import org.netxms.client.datacollection.DciValue;
import org.netxms.client.datacollection.ThresholdViolationSummary;
import org.netxms.ui.eclipse.datacollection.widgets.ThresholdSummaryWidget;
import org.netxms.ui.eclipse.shared.ConsoleSharedData;
import org.netxms.ui.eclipse.widgets.SortableTreeViewer;

/**
 * Comparator for threshold overview tree
 */
public class ThresholdTreeComparator extends ViewerComparator {
    private 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 e1, Object e2) {
        int result = 0;

        if ((e1 instanceof ThresholdViolationSummary) && (e2 instanceof ThresholdViolationSummary)) {
            switch ((Integer) ((SortableTreeViewer) viewer).getTree().getSortColumn().getData("ID")) //$NON-NLS-1$
            {
            case ThresholdSummaryWidget.COLUMN_NODE:
                String name1 = session.getObjectName(((ThresholdViolationSummary) e1).getNodeId());
                String name2 = session.getObjectName(((ThresholdViolationSummary) e2).getNodeId());
                result = name1.compareToIgnoreCase(name2);
                break;
            case ThresholdSummaryWidget.COLUMN_STATUS:
                result = ((ThresholdViolationSummary) e1).getCurrentSeverity()
                        .compareTo(((ThresholdViolationSummary) e2).getCurrentSeverity());
                break;
            default:
                break;
            }
        } else if ((e1 instanceof DciValue) && (e2 instanceof DciValue)) {
            switch ((Integer) ((SortableTreeViewer) viewer).getTree().getSortColumn().getData("ID")) //$NON-NLS-1$
            {
            case ThresholdSummaryWidget.COLUMN_STATUS:
                result = ((DciValue) e1).getActiveThreshold().getCurrentSeverity()
                        .compareTo(((DciValue) e2).getActiveThreshold().getCurrentSeverity());
                break;
            case ThresholdSummaryWidget.COLUMN_PARAMETER:
                result = ((DciValue) e1).getDescription().compareToIgnoreCase(((DciValue) e2).getDescription());
                break;
            case ThresholdSummaryWidget.COLUMN_VALUE:
                result = ((DciValue) e1).getValue().compareToIgnoreCase(((DciValue) e2).getValue());
                break;
            case ThresholdSummaryWidget.COLUMN_TIMESTAMP:
                Date t1 = ((DciValue) e1).getActiveThreshold().getLastEventTimestamp();
                Date t2 = ((DciValue) e2).getActiveThreshold().getLastEventTimestamp();
                result = Long.signum(t1.getTime() - t2.getTime());
                break;
            default:
                break;
            }
        }
        return (((SortableTreeViewer) viewer).getTree().getSortDirection() == SWT.UP) ? result : -result;
    }
}