001/* 002 * (C) Copyright 2010 Nuxeo SAS (http://nuxeo.com/) and contributors. 003 * 004 * All rights reserved. This program and the accompanying materials 005 * are made available under the terms of the GNU Lesser General Public License 006 * (LGPL) version 2.1 which accompanies this distribution, and is available at 007 * http://www.gnu.org/licenses/lgpl.html 008 * 009 * This library is distributed in the hope that it will be useful, 010 * but WITHOUT ANY WARRANTY; without even the implied warranty of 011 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 012 * Lesser General Public License for more details. 013 * 014 * Contributors: 015 * Nuxeo - initial API and implementation 016 */ 017 018package org.nuxeo.ecm.platform.comment.impl; 019 020import java.util.Calendar; 021 022import org.nuxeo.ecm.core.api.DocumentModel; 023import org.nuxeo.ecm.core.api.PropertyException; 024import org.nuxeo.ecm.core.api.Sorter; 025 026public class CommentSorter implements Sorter { 027 028 private static final long serialVersionUID = 1L; 029 030 private boolean asc = true; 031 032 public CommentSorter(boolean asc) { 033 this.asc = asc; 034 } 035 036 public int compare(DocumentModel doc1, DocumentModel doc2) { 037 038 if (doc1 == null && doc2 == null) { 039 return 0; 040 } else if (doc1 == null) { 041 return asc ? -1 : 1; 042 } else if (doc2 == null) { 043 return asc ? 1 : -1; 044 } 045 046 int cmp = 0; 047 try { 048 Calendar created1 = (Calendar) doc1.getPropertyValue("dc:created"); 049 Calendar created2 = (Calendar) doc2.getPropertyValue("dc:created"); 050 051 if (created1 == null && created2 == null) { 052 return 0; 053 } else if (created1 == null) { 054 return asc ? -1 : 1; 055 } else if (created2 == null) { 056 return asc ? 1 : -1; 057 } 058 cmp = created1.compareTo(created2); 059 } catch (PropertyException e) { 060 } 061 return asc ? cmp : -cmp; 062 } 063 064}