| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 org.apache.commons.vfs2; |
| |
| import org.apache.commons.vfs2.util.Messages; |
| |
| /** |
| * A {@link org.apache.commons.vfs2.FileSelector} that selects all children of the given fileObject. |
| * <p> |
| * This is to mimic the {@link java.io.FileFilter} interface. |
| * </p> |
| */ |
| public class FileFilterSelector extends FileDepthSelector { |
| |
| /** |
| * The FileFilter. |
| */ |
| private final FileFilter fileFilter; |
| |
| public FileFilterSelector() { |
| this(null); |
| } |
| |
| public FileFilterSelector(final FileFilter fileFilter) { |
| super(1, 1); |
| this.fileFilter = fileFilter; |
| } |
| |
| /** |
| * Determines if a file or folder should be selected. |
| * |
| * @param fileInfo The file selection information. |
| * @return true if the file or folder should be included, false otherwise. |
| */ |
| @Override |
| public boolean includeFile(final FileSelectInfo fileInfo) throws Exception { |
| if (!super.includeFile(fileInfo)) { |
| return false; |
| } |
| |
| return accept(fileInfo); |
| } |
| |
| /** |
| * Determines whether the file should be selected. |
| * |
| * @param fileInfo The file selection information. |
| * @return true if the file should be selected, false otherwise. |
| * @throws Exception Thrown for file system errors or illegal argument exception. |
| */ |
| public boolean accept(final FileSelectInfo fileInfo) throws Exception { |
| if (fileFilter != null) { |
| return fileFilter.accept(fileInfo); |
| } |
| |
| throw new IllegalArgumentException(Messages.getString("vfs.selectors/filefilter.missing.error")); |
| } |
| } |