| Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
| DelegateFileFilter |
|
| 2.8;2.8 |
| 1 | /* | |
| 2 | * Licensed to the Apache Software Foundation (ASF) under one or more | |
| 3 | * contributor license agreements. See the NOTICE file distributed with | |
| 4 | * this work for additional information regarding copyright ownership. | |
| 5 | * The ASF licenses this file to You under the Apache License, Version 2.0 | |
| 6 | * (the "License"); you may not use this file except in compliance with | |
| 7 | * the License. You may obtain a copy of the License at | |
| 8 | * | |
| 9 | * http://www.apache.org/licenses/LICENSE-2.0 | |
| 10 | * | |
| 11 | * Unless required by applicable law or agreed to in writing, software | |
| 12 | * distributed under the License is distributed on an "AS IS" BASIS, | |
| 13 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
| 14 | * See the License for the specific language governing permissions and | |
| 15 | * limitations under the License. | |
| 16 | */ | |
| 17 | package org.apache.commons.io.filefilter; | |
| 18 | ||
| 19 | import java.io.File; | |
| 20 | import java.io.FileFilter; | |
| 21 | import java.io.FilenameFilter; | |
| 22 | import java.io.Serializable; | |
| 23 | ||
| 24 | /** | |
| 25 | * This class turns a Java FileFilter or FilenameFilter into an IO FileFilter. | |
| 26 | * | |
| 27 | * @since 1.0 | |
| 28 | * @version $Id: DelegateFileFilter.java 1471767 2013-04-24 23:24:19Z sebb $ | |
| 29 | * | |
| 30 | * @see FileFilterUtils#asFileFilter(FileFilter) | |
| 31 | * @see FileFilterUtils#asFileFilter(FilenameFilter) | |
| 32 | */ | |
| 33 | public class DelegateFileFilter extends AbstractFileFilter implements Serializable { | |
| 34 | ||
| 35 | /** The Filename filter */ | |
| 36 | private final FilenameFilter filenameFilter; | |
| 37 | /** The File filter */ | |
| 38 | private final FileFilter fileFilter; | |
| 39 | ||
| 40 | /** | |
| 41 | * Constructs a delegate file filter around an existing FilenameFilter. | |
| 42 | * | |
| 43 | * @param filter the filter to decorate | |
| 44 | */ | |
| 45 | 3 | public DelegateFileFilter(final FilenameFilter filter) { |
| 46 | 3 | if (filter == null) { |
| 47 | 1 | throw new IllegalArgumentException("The FilenameFilter must not be null"); |
| 48 | } | |
| 49 | 2 | this.filenameFilter = filter; |
| 50 | 2 | this.fileFilter = null; |
| 51 | 2 | } |
| 52 | ||
| 53 | /** | |
| 54 | * Constructs a delegate file filter around an existing FileFilter. | |
| 55 | * | |
| 56 | * @param filter the filter to decorate | |
| 57 | */ | |
| 58 | 3 | public DelegateFileFilter(final FileFilter filter) { |
| 59 | 3 | if (filter == null) { |
| 60 | 1 | throw new IllegalArgumentException("The FileFilter must not be null"); |
| 61 | } | |
| 62 | 2 | this.fileFilter = filter; |
| 63 | 2 | this.filenameFilter = null; |
| 64 | 2 | } |
| 65 | ||
| 66 | /** | |
| 67 | * Checks the filter. | |
| 68 | * | |
| 69 | * @param file the file to check | |
| 70 | * @return true if the filter matches | |
| 71 | */ | |
| 72 | @Override | |
| 73 | public boolean accept(final File file) { | |
| 74 | 2 | if (fileFilter != null) { |
| 75 | 1 | return fileFilter.accept(file); |
| 76 | } else { | |
| 77 | 1 | return super.accept(file); |
| 78 | } | |
| 79 | } | |
| 80 | ||
| 81 | /** | |
| 82 | * Checks the filter. | |
| 83 | * | |
| 84 | * @param dir the directory | |
| 85 | * @param name the filename in the directory | |
| 86 | * @return true if the filter matches | |
| 87 | */ | |
| 88 | @Override | |
| 89 | public boolean accept(final File dir, final String name) { | |
| 90 | 1 | if (filenameFilter != null) { |
| 91 | 1 | return filenameFilter.accept(dir, name); |
| 92 | } else { | |
| 93 | 0 | return super.accept(dir, name); |
| 94 | } | |
| 95 | } | |
| 96 | ||
| 97 | /** | |
| 98 | * Provide a String representaion of this file filter. | |
| 99 | * | |
| 100 | * @return a String representaion | |
| 101 | */ | |
| 102 | @Override | |
| 103 | public String toString() { | |
| 104 | 5 | final String delegate = fileFilter != null ? fileFilter.toString() : filenameFilter.toString(); |
| 105 | 5 | return super.toString() + "(" + delegate + ")"; |
| 106 | } | |
| 107 | ||
| 108 | } |