Java tutorial
package ch.cyberduck.ui.comparator; /* * Copyright (c) 2002-2010 David Kocher. All rights reserved. * * http://cyberduck.ch/ * * 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. * * Bug fixes, suggestions and comments should be sent to: * dkocher@cyberduck.ch */ import ch.cyberduck.core.Path; import org.apache.commons.lang3.StringUtils; public class OwnerComparator extends BrowserComparator { private static final long serialVersionUID = -3411022739897657092L; public OwnerComparator(boolean ascending) { super(ascending, new FilenameComparator(ascending)); } @Override protected int compareFirst(final Path p1, final Path p2) { if (StringUtils.isBlank(p1.attributes().getOwner()) && StringUtils.isBlank(p2.attributes().getOwner())) { return 0; } if (StringUtils.isBlank(p1.attributes().getOwner())) { return -1; } if (StringUtils.isBlank(p2.attributes().getOwner())) { return 1; } if (ascending) { return p1.attributes().getOwner().compareToIgnoreCase(p2.attributes().getOwner()); } return -p1.attributes().getOwner().compareToIgnoreCase(p2.attributes().getOwner()); } }