| /* |
| * 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.pivot.io; |
| |
| import java.io.File; |
| import java.io.Serializable; |
| import java.util.Comparator; |
| |
| import org.apache.pivot.annotations.UnsupportedOperation; |
| import org.apache.pivot.collections.adapter.ListAdapter; |
| |
| /** |
| * Collection representing a list of files. Each entry in the list is unique; |
| * i.e. a single file can't be added to the list more than once. |
| */ |
| public class FileList extends ListAdapter<File> { |
| private static final long serialVersionUID = -6741822480264805279L; |
| |
| private static class FilePathComparator implements Comparator<File>, Serializable { |
| private static final long serialVersionUID = 6341769187574031281L; |
| |
| @Override |
| public int compare(File file1, File file2) { |
| String path1 = file1.getPath(); |
| String path2 = file2.getPath(); |
| |
| return path1.compareTo(path2); |
| } |
| } |
| |
| private static final FilePathComparator FILE_PATH_COMPARATOR = new FilePathComparator(); |
| |
| public FileList() { |
| this(new java.util.ArrayList<File>()); |
| } |
| |
| public FileList(java.util.List<File> files) { |
| super(files); |
| |
| super.setComparator(FILE_PATH_COMPARATOR); |
| } |
| |
| @Override |
| public int add(File file) { |
| int index = indexOf(file); |
| |
| if (index == -1) { |
| index = super.add(file); |
| } |
| |
| return index; |
| } |
| |
| @Override |
| @UnsupportedOperation |
| public void insert(File file, int index) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| @UnsupportedOperation |
| public File update(int index, File file) { |
| throw new UnsupportedOperationException(); |
| } |
| |
| @Override |
| @UnsupportedOperation |
| public void setComparator(Comparator<File> comparator) { |
| throw new UnsupportedOperationException(); |
| } |
| } |