Java tutorial
/** * NetXMS - open source network management system * Copyright (C) 2003-2015 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.topology.views.helpers; 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.topology.FdbEntry; import org.netxms.ui.eclipse.shared.ConsoleSharedData; import org.netxms.ui.eclipse.topology.views.SwitchForwardingDatabaseView; import org.netxms.ui.eclipse.widgets.SortableTableViewer; /** * Comparator for FDB records */ public class FDBComparator 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) { FdbEntry fdb1 = (FdbEntry) e1; FdbEntry fdb2 = (FdbEntry) e2; int result; switch ((Integer) ((SortableTableViewer) viewer).getTable().getSortColumn().getData("ID")) //$NON-NLS-1$ { case SwitchForwardingDatabaseView.COLUMN_INTERFACE: result = fdb1.getInterfaceName().compareToIgnoreCase(fdb2.getInterfaceName()); break; case SwitchForwardingDatabaseView.COLUMN_MAC_ADDRESS: result = fdb1.getAddress().compareTo(fdb2.getAddress()); break; case SwitchForwardingDatabaseView.COLUMN_NODE: String n1 = (fdb1.getNodeId() != 0) ? session.getObjectName(fdb1.getNodeId()) : ""; //$NON-NLS-1$ String n2 = (fdb2.getNodeId() != 0) ? session.getObjectName(fdb2.getNodeId()) : ""; //$NON-NLS-1$ result = n1.compareToIgnoreCase(n2); break; case SwitchForwardingDatabaseView.COLUMN_PORT: result = fdb1.getPort() - fdb2.getPort(); break; case SwitchForwardingDatabaseView.COLUMN_VLAN: result = fdb1.getVlanId() - fdb2.getVlanId(); break; case SwitchForwardingDatabaseView.COLUMN_TYPE: result = fdb1.getType() - fdb2.getType(); break; default: result = 0; break; } return (((SortableTableViewer) viewer).getTable().getSortDirection() == SWT.DOWN) ? result : -result; } }