001/* 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017package org.apache.commons.vfs2.example.filter; 018 019import java.io.File; 020 021import org.apache.commons.vfs2.FileFilterSelector; 022import org.apache.commons.vfs2.FileObject; 023import org.apache.commons.vfs2.FileSystemManager; 024import org.apache.commons.vfs2.VFS; 025import org.apache.commons.vfs2.filter.EmptyFileFilter; 026 027/** 028 * Example for using {@link EmptyFileFilter}. 029 */ 030// CHECKSTYLE:OFF Example code 031public final class EmptyFileFilterExample { 032 /** 033 * Invokes this example from the command line. 034 * 035 * @param args Arguments TODO 036 * @throws Exception If anything goes wrong. 037 */ 038 public static void main(final String[] args) throws Exception { 039 040 final FileSystemManager fsManager = VFS.getManager(); 041 final FileObject dir = fsManager.toFileObject(new File(".")); 042 043 // Example, showing how to print out a list of the current directory's 044 // empty files/directories 045 System.out.println("---EMPTY---"); 046 for (final FileObject file : dir.findFiles(new FileFilterSelector(EmptyFileFilter.EMPTY))) { 047 System.out.println(file); 048 } 049 050 // Example, showing how to print out a list of the current directory's 051 // non-empty files/directories 052 System.out.println("---NOT_EMPTY---"); 053 for (final FileObject file : dir.findFiles(new FileFilterSelector(EmptyFileFilter.NOT_EMPTY))) { 054 System.out.println(file); 055 } 056 057 } 058 059 private EmptyFileFilterExample() { 060 /* main class not instantiated. */ 061 } 062 063} 064// CHECKSTYLE:ON