Java tutorial
/* * Copyright (C) 2014 Adam Huang * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package poisondog.commons.vfs; import java.util.Comparator; import org.apache.commons.vfs2.FileObject; import org.apache.commons.vfs2.FileType; /** * @author Adam Huang <poisondog@gmail.com> */ public class LastModifiedComparator implements Comparator<FileObject> { public int compare(FileObject obj1, FileObject obj2) { try { if (obj1.getType() == FileType.FOLDER && obj2.getType() != FileType.FOLDER) return -1; if (obj1.getType() != FileType.FOLDER && obj2.getType() == FileType.FOLDER) return 1; long time1 = obj1.getContent().getLastModifiedTime(); long time2 = obj2.getContent().getLastModifiedTime(); if (time2 > time1) return 1; if (time2 < time1) return -1; return 0; } catch (Exception e) { e.printStackTrace(); } return 0; } }