| /* |
| * 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.io.filefilter; |
| |
| import java.io.File; |
| import java.io.FileFilter; |
| import java.io.FilenameFilter; |
| import java.util.Arrays; |
| import java.util.Collections; |
| import java.util.Date; |
| import java.util.HashSet; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Set; |
| import java.util.stream.Collector; |
| import java.util.stream.Collectors; |
| import java.util.stream.Stream; |
| import java.util.stream.StreamSupport; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.commons.io.IOCase; |
| |
| /** |
| * Useful utilities for working with file filters. It provides access to most |
| * file filter implementations in this package so you don't have to import |
| * every class you use. |
| * |
| * @since 1.0 |
| */ |
| public class FileFilterUtils { |
| |
| /* Constructed on demand and then cached */ |
| private static final IOFileFilter CVS_FILTER = notFileFilter( |
| and(directoryFileFilter(), nameFileFilter("CVS"))); |
| |
| /* Constructed on demand and then cached */ |
| private static final IOFileFilter SVN_FILTER = notFileFilter( |
| and(directoryFileFilter(), nameFileFilter(".svn"))); |
| |
| /** |
| * Returns a filter that returns true if the file was last modified before |
| * or at the specified cutoff date. |
| * |
| * @param cutoffDate the time threshold |
| * @return an appropriately configured age file filter |
| * @see AgeFileFilter |
| * @since 1.2 |
| */ |
| public static IOFileFilter ageFileFilter(final Date cutoffDate) { |
| return new AgeFileFilter(cutoffDate); |
| } |
| |
| /** |
| * Returns a filter that filters files based on a cutoff date. |
| * |
| * @param cutoffDate the time threshold |
| * @param acceptOlder if true, older files get accepted, if false, newer |
| * @return an appropriately configured age file filter |
| * @see AgeFileFilter |
| * @since 1.2 |
| */ |
| public static IOFileFilter ageFileFilter(final Date cutoffDate, final boolean acceptOlder) { |
| return new AgeFileFilter(cutoffDate, acceptOlder); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file was last modified before |
| * or at the same time as the specified reference file. |
| * |
| * @param cutoffReference the file whose last modification |
| * time is used as the threshold age of the files |
| * @return an appropriately configured age file filter |
| * @see AgeFileFilter |
| * @since 1.2 |
| */ |
| public static IOFileFilter ageFileFilter(final File cutoffReference) { |
| return new AgeFileFilter(cutoffReference); |
| } |
| |
| /** |
| * Returns a filter that filters files based on a cutoff reference file. |
| * |
| * @param cutoffReference the file whose last modification |
| * time is used as the threshold age of the files |
| * @param acceptOlder if true, older files get accepted, if false, newer |
| * @return an appropriately configured age file filter |
| * @see AgeFileFilter |
| * @since 1.2 |
| */ |
| public static IOFileFilter ageFileFilter(final File cutoffReference, final boolean acceptOlder) { |
| return new AgeFileFilter(cutoffReference, acceptOlder); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file was last modified before |
| * or at the specified cutoff time. |
| * |
| * @param cutoffMillis the time threshold |
| * @return an appropriately configured age file filter |
| * @see AgeFileFilter |
| * @since 1.2 |
| */ |
| public static IOFileFilter ageFileFilter(final long cutoffMillis) { |
| return new AgeFileFilter(cutoffMillis); |
| } |
| |
| /** |
| * Returns a filter that filters files based on a cutoff time. |
| * |
| * @param cutoffMillis the time threshold |
| * @param acceptOlder if true, older files get accepted, if false, newer |
| * @return an appropriately configured age file filter |
| * @see AgeFileFilter |
| * @since 1.2 |
| */ |
| public static IOFileFilter ageFileFilter(final long cutoffMillis, final boolean acceptOlder) { |
| return new AgeFileFilter(cutoffMillis, acceptOlder); |
| } |
| |
| /** |
| * Returns a filter that ANDs the specified filters. |
| * |
| * @param filters the IOFileFilters that will be ANDed together. |
| * @return a filter that ANDs the specified filters |
| * |
| * @throws IllegalArgumentException if the filters are null or contain a |
| * null value. |
| * @see AndFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter and(final IOFileFilter... filters) { |
| return new AndFileFilter(toList(filters)); |
| } |
| |
| /** |
| * Returns a filter that ANDs the two specified filters. |
| * |
| * @param filter1 the first filter |
| * @param filter2 the second filter |
| * @return a filter that ANDs the two specified filters |
| * @see #and(IOFileFilter...) |
| * @see AndFileFilter |
| * @deprecated use {@link #and(IOFileFilter...)} |
| */ |
| @Deprecated |
| public static IOFileFilter andFileFilter(final IOFileFilter filter1, final IOFileFilter filter2) { |
| return new AndFileFilter(filter1, filter2); |
| } |
| |
| /** |
| * Returns an {@link IOFileFilter} that wraps the |
| * {@link FileFilter} instance. |
| * |
| * @param filter the filter to be wrapped |
| * @return a new filter that implements IOFileFilter |
| * @see DelegateFileFilter |
| */ |
| public static IOFileFilter asFileFilter(final FileFilter filter) { |
| return new DelegateFileFilter(filter); |
| } |
| |
| /** |
| * Returns an {@link IOFileFilter} that wraps the |
| * {@link FilenameFilter} instance. |
| * |
| * @param filter the filter to be wrapped |
| * @return a new filter that implements IOFileFilter |
| * @see DelegateFileFilter |
| */ |
| public static IOFileFilter asFileFilter(final FilenameFilter filter) { |
| return new DelegateFileFilter(filter); |
| } |
| |
| /** |
| * Returns a filter that checks if the file is a directory. |
| * |
| * @return file filter that accepts only directories and not files |
| * @see DirectoryFileFilter#DIRECTORY |
| */ |
| public static IOFileFilter directoryFileFilter() { |
| return DirectoryFileFilter.DIRECTORY; |
| } |
| |
| /** |
| * Returns a filter that always returns false. |
| * |
| * @return a false filter |
| * @see FalseFileFilter#FALSE |
| */ |
| public static IOFileFilter falseFileFilter() { |
| return FalseFileFilter.FALSE; |
| } |
| |
| /** |
| * Returns a filter that checks if the file is a file (and not a directory). |
| * |
| * @return file filter that accepts only files and not directories |
| * @see FileFileFilter#INSTANCE |
| */ |
| public static IOFileFilter fileFileFilter() { |
| return FileFileFilter.INSTANCE; |
| } |
| |
| /** |
| * <p> |
| * Applies an {@link IOFileFilter} to the provided {@link File} |
| * objects. The resulting array is a subset of the original file list that |
| * matches the provided filter. |
| * </p> |
| * |
| * <pre> |
| * Set<File> allFiles = ... |
| * Set<File> javaFiles = FileFilterUtils.filterSet(allFiles, |
| * FileFilterUtils.suffixFileFilter(".java")); |
| * </pre> |
| * @param filter the filter to apply to the set of files. |
| * @param files the array of files to apply the filter to. |
| * |
| * @return a subset of {@code files} that is accepted by the |
| * file filter. |
| * @throws NullPointerException if the filter is {@code null} |
| * or {@code files} contains a {@code null} value. |
| * |
| * @since 2.0 |
| */ |
| public static File[] filter(final IOFileFilter filter, final File... files) { |
| Objects.requireNonNull(filter, "filter"); |
| if (files == null) { |
| return FileUtils.EMPTY_FILE_ARRAY; |
| } |
| return filterFiles(filter, Stream.of(files), Collectors.toList()).toArray(FileUtils.EMPTY_FILE_ARRAY); |
| } |
| |
| /** |
| * <p> |
| * Applies an {@link IOFileFilter} to the provided {@link File} |
| * objects. The resulting array is a subset of the original file list that |
| * matches the provided filter. |
| * </p> |
| * |
| * <p> |
| * The {@link Set} returned by this method is not guaranteed to be thread safe. |
| * </p> |
| * |
| * <pre> |
| * Set<File> allFiles = ... |
| * Set<File> javaFiles = FileFilterUtils.filterSet(allFiles, |
| * FileFilterUtils.suffixFileFilter(".java")); |
| * </pre> |
| * @param filter the filter to apply to the set of files. |
| * @param files the array of files to apply the filter to. |
| * |
| * @return a subset of {@code files} that is accepted by the |
| * file filter. |
| * @throws IllegalArgumentException if the filter is {@code null} |
| * or {@code files} contains a {@code null} value. |
| * |
| * @since 2.0 |
| */ |
| public static File[] filter(final IOFileFilter filter, final Iterable<File> files) { |
| return filterList(filter, files).toArray(FileUtils.EMPTY_FILE_ARRAY); |
| } |
| |
| /** |
| * <p> |
| * Applies an {@link IOFileFilter} to the provided {@link File} stream and collects the accepted files. |
| * </p> |
| * |
| * @param filter the filter to apply to the stream of files. |
| * @param stream the stream of files on which to apply the filter. |
| * @param collector how to collect the end result. |
| * |
| * @param <R> the return type. |
| * @param <A> the mutable accumulation type of the reduction operation (often hidden as an implementation detail) |
| * @return a subset of files from the stream that is accepted by the filter. |
| * @throws NullPointerException if the filter is {@code null}. |
| */ |
| private static <R, A> R filterFiles(final IOFileFilter filter, final Stream<File> stream, |
| final Collector<? super File, A, R> collector) { |
| Objects.requireNonNull(filter, "filter"); |
| Objects.requireNonNull(collector, "collector"); |
| if (stream == null) { |
| return Stream.<File>empty().collect(collector); |
| } |
| return stream.filter(filter::accept).collect(collector); |
| } |
| |
| /** |
| * <p> |
| * Applies an {@link IOFileFilter} to the provided {@link File} |
| * objects. The resulting list is a subset of the original files that |
| * matches the provided filter. |
| * </p> |
| * |
| * <p> |
| * The {@link List} returned by this method is not guaranteed to be thread safe. |
| * </p> |
| * |
| * <pre> |
| * List<File> filesAndDirectories = ... |
| * List<File> directories = FileFilterUtils.filterList(filesAndDirectories, |
| * FileFilterUtils.directoryFileFilter()); |
| * </pre> |
| * @param filter the filter to apply to each files in the list. |
| * @param files the collection of files to apply the filter to. |
| * |
| * @return a subset of {@code files} that is accepted by the |
| * file filter. |
| * @throws IllegalArgumentException if the filter is {@code null} |
| * or {@code files} contains a {@code null} value. |
| * @since 2.0 |
| */ |
| public static List<File> filterList(final IOFileFilter filter, final File... files) { |
| return Arrays.asList(filter(filter, files)); |
| } |
| |
| /** |
| * <p> |
| * Applies an {@link IOFileFilter} to the provided {@link File} |
| * objects. The resulting list is a subset of the original files that |
| * matches the provided filter. |
| * </p> |
| * |
| * <p> |
| * The {@link List} returned by this method is not guaranteed to be thread safe. |
| * </p> |
| * |
| * <pre> |
| * List<File> filesAndDirectories = ... |
| * List<File> directories = FileFilterUtils.filterList(filesAndDirectories, |
| * FileFilterUtils.directoryFileFilter()); |
| * </pre> |
| * @param filter the filter to apply to each files in the list. |
| * @param files the collection of files to apply the filter to. |
| * |
| * @return a subset of {@code files} that is accepted by the |
| * file filter. |
| * @throws IllegalArgumentException if the filter is {@code null} |
| * @since 2.0 |
| */ |
| public static List<File> filterList(final IOFileFilter filter, final Iterable<File> files) { |
| if (files == null) { |
| return Collections.emptyList(); |
| } |
| return filterFiles(filter, StreamSupport.stream(files.spliterator(), false), Collectors.toList()); |
| } |
| |
| /** |
| * <p> |
| * Applies an {@link IOFileFilter} to the provided {@link File} |
| * objects. The resulting set is a subset of the original file list that |
| * matches the provided filter. |
| * </p> |
| * |
| * <p> |
| * The {@link Set} returned by this method is not guaranteed to be thread safe. |
| * </p> |
| * |
| * <pre> |
| * Set<File> allFiles = ... |
| * Set<File> javaFiles = FileFilterUtils.filterSet(allFiles, |
| * FileFilterUtils.suffixFileFilter(".java")); |
| * </pre> |
| * @param filter the filter to apply to the set of files. |
| * @param files the collection of files to apply the filter to. |
| * |
| * @return a subset of {@code files} that is accepted by the |
| * file filter. |
| * @throws IllegalArgumentException if the filter is {@code null} |
| * or {@code files} contains a {@code null} value. |
| * |
| * @since 2.0 |
| */ |
| public static Set<File> filterSet(final IOFileFilter filter, final File... files) { |
| return new HashSet<>(Arrays.asList(filter(filter, files))); |
| } |
| |
| /** |
| * <p> |
| * Applies an {@link IOFileFilter} to the provided {@link File} |
| * objects. The resulting set is a subset of the original file list that |
| * matches the provided filter. |
| * </p> |
| * |
| * <p> |
| * The {@link Set} returned by this method is not guaranteed to be thread safe. |
| * </p> |
| * |
| * <pre> |
| * Set<File> allFiles = ... |
| * Set<File> javaFiles = FileFilterUtils.filterSet(allFiles, |
| * FileFilterUtils.suffixFileFilter(".java")); |
| * </pre> |
| * @param filter the filter to apply to the set of files. |
| * @param files the collection of files to apply the filter to. |
| * |
| * @return a subset of {@code files} that is accepted by the |
| * file filter. |
| * @throws IllegalArgumentException if the filter is {@code null} |
| * |
| * @since 2.0 |
| */ |
| public static Set<File> filterSet(final IOFileFilter filter, final Iterable<File> files) { |
| if (files == null) { |
| return Collections.emptySet(); |
| } |
| return filterFiles(filter, StreamSupport.stream(files.spliterator(), false), Collectors.toSet()); |
| } |
| |
| /** |
| * Returns a filter that accepts files that begin with the provided magic |
| * number. |
| * |
| * @param magicNumber the magic number (byte sequence) to match at the |
| * beginning of each file. |
| * |
| * @return an IOFileFilter that accepts files beginning with the provided |
| * magic number. |
| * |
| * @throws IllegalArgumentException if {@code magicNumber} is |
| * {@code null} or is of length zero. |
| * @see MagicNumberFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter magicNumberFileFilter(final byte[] magicNumber) { |
| return new MagicNumberFileFilter(magicNumber); |
| } |
| |
| /** |
| * Returns a filter that accepts files that contains the provided magic |
| * number at a specified offset within the file. |
| * |
| * @param magicNumber the magic number (byte sequence) to match at the |
| * provided offset in each file. |
| * @param offset the offset within the files to look for the magic number. |
| * |
| * @return an IOFileFilter that accepts files containing the magic number |
| * at the specified offset. |
| * |
| * @throws IllegalArgumentException if {@code magicNumber} is |
| * {@code null}, or contains no bytes, or {@code offset} |
| * is a negative number. |
| * @see MagicNumberFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter magicNumberFileFilter(final byte[] magicNumber, final long offset) { |
| return new MagicNumberFileFilter(magicNumber, offset); |
| } |
| |
| /** |
| * Returns a filter that accepts files that begin with the provided magic |
| * number. |
| * |
| * @param magicNumber the magic number (byte sequence) to match at the |
| * beginning of each file. |
| * |
| * @return an IOFileFilter that accepts files beginning with the provided |
| * magic number. |
| * |
| * @throws IllegalArgumentException if {@code magicNumber} is |
| * {@code null} or the empty String. |
| * @see MagicNumberFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter magicNumberFileFilter(final String magicNumber) { |
| return new MagicNumberFileFilter(magicNumber); |
| } |
| |
| /** |
| * Returns a filter that accepts files that contains the provided magic |
| * number at a specified offset within the file. |
| * |
| * @param magicNumber the magic number (byte sequence) to match at the |
| * provided offset in each file. |
| * @param offset the offset within the files to look for the magic number. |
| * |
| * @return an IOFileFilter that accepts files containing the magic number |
| * at the specified offset. |
| * |
| * @throws IllegalArgumentException if {@code magicNumber} is |
| * {@code null} or the empty String, or if offset is a |
| * negative number. |
| * @see MagicNumberFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter magicNumberFileFilter(final String magicNumber, final long offset) { |
| return new MagicNumberFileFilter(magicNumber, offset); |
| } |
| |
| /** |
| * Decorates a filter to make it ignore CVS directories. |
| * Passing in {@code null} will return a filter that accepts everything |
| * except CVS directories. |
| * |
| * @param filter the filter to decorate, null means an unrestricted filter |
| * @return the decorated filter, never null |
| * @since 1.1 (method existed but had a bug in 1.0) |
| */ |
| public static IOFileFilter makeCVSAware(final IOFileFilter filter) { |
| return filter == null ? CVS_FILTER : and(filter, CVS_FILTER); |
| } |
| |
| /** |
| * Decorates a filter so that it only applies to directories and not to files. |
| * |
| * @param filter the filter to decorate, null means an unrestricted filter |
| * @return the decorated filter, never null |
| * @see DirectoryFileFilter#DIRECTORY |
| * @since 1.3 |
| */ |
| public static IOFileFilter makeDirectoryOnly(final IOFileFilter filter) { |
| if (filter == null) { |
| return DirectoryFileFilter.DIRECTORY; |
| } |
| return DirectoryFileFilter.DIRECTORY.and(filter); |
| } |
| |
| /** |
| * Decorates a filter so that it only applies to files and not to directories. |
| * |
| * @param filter the filter to decorate, null means an unrestricted filter |
| * @return the decorated filter, never null |
| * @see FileFileFilter#INSTANCE |
| * @since 1.3 |
| */ |
| public static IOFileFilter makeFileOnly(final IOFileFilter filter) { |
| if (filter == null) { |
| return FileFileFilter.INSTANCE; |
| } |
| return FileFileFilter.INSTANCE.and(filter); |
| } |
| |
| /** |
| * Decorates a filter to make it ignore SVN directories. |
| * Passing in {@code null} will return a filter that accepts everything |
| * except SVN directories. |
| * |
| * @param filter the filter to decorate, null means an unrestricted filter |
| * @return the decorated filter, never null |
| * @since 1.1 |
| */ |
| public static IOFileFilter makeSVNAware(final IOFileFilter filter) { |
| return filter == null ? SVN_FILTER : and(filter, SVN_FILTER); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file name matches the specified text. |
| * |
| * @param name the file name |
| * @return a name checking filter |
| * @see NameFileFilter |
| */ |
| public static IOFileFilter nameFileFilter(final String name) { |
| return new NameFileFilter(name); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file name matches the specified text. |
| * |
| * @param name the file name |
| * @param ioCase how to handle case sensitivity, null means case-sensitive |
| * @return a name checking filter |
| * @see NameFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter nameFileFilter(final String name, final IOCase ioCase) { |
| return new NameFileFilter(name, ioCase); |
| } |
| |
| /** |
| * Returns a filter that NOTs the specified filter. |
| * |
| * @param filter the filter to invert |
| * @return a filter that NOTs the specified filter |
| * @see NotFileFilter |
| */ |
| public static IOFileFilter notFileFilter(final IOFileFilter filter) { |
| return filter.negate(); |
| } |
| |
| /** |
| * Returns a filter that ORs the specified filters. |
| * |
| * @param filters the IOFileFilters that will be ORed together. |
| * @return a filter that ORs the specified filters |
| * |
| * @throws IllegalArgumentException if the filters are null or contain a |
| * null value. |
| * @see OrFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter or(final IOFileFilter... filters) { |
| return new OrFileFilter(toList(filters)); |
| } |
| |
| /** |
| * Returns a filter that ORs the two specified filters. |
| * |
| * @param filter1 the first filter |
| * @param filter2 the second filter |
| * @return a filter that ORs the two specified filters |
| * @see #or(IOFileFilter...) |
| * @see OrFileFilter |
| * @deprecated use {@link #or(IOFileFilter...)} |
| */ |
| @Deprecated |
| public static IOFileFilter orFileFilter(final IOFileFilter filter1, final IOFileFilter filter2) { |
| return new OrFileFilter(filter1, filter2); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file name starts with the specified text. |
| * |
| * @param prefix the file name prefix |
| * @return a prefix checking filter |
| * @see PrefixFileFilter |
| */ |
| public static IOFileFilter prefixFileFilter(final String prefix) { |
| return new PrefixFileFilter(prefix); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file name starts with the specified text. |
| * |
| * @param prefix the file name prefix |
| * @param ioCase how to handle case sensitivity, null means case-sensitive |
| * @return a prefix checking filter |
| * @see PrefixFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter prefixFileFilter(final String prefix, final IOCase ioCase) { |
| return new PrefixFileFilter(prefix, ioCase); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file is bigger than a certain size. |
| * |
| * @param threshold the file size threshold |
| * @return an appropriately configured SizeFileFilter |
| * @see SizeFileFilter |
| * @since 1.2 |
| */ |
| public static IOFileFilter sizeFileFilter(final long threshold) { |
| return new SizeFileFilter(threshold); |
| } |
| |
| /** |
| * Returns a filter that filters based on file size. |
| * |
| * @param threshold the file size threshold |
| * @param acceptLarger if true, larger files get accepted, if false, smaller |
| * @return an appropriately configured SizeFileFilter |
| * @see SizeFileFilter |
| * @since 1.2 |
| */ |
| public static IOFileFilter sizeFileFilter(final long threshold, final boolean acceptLarger) { |
| return new SizeFileFilter(threshold, acceptLarger); |
| } |
| |
| /** |
| * Returns a filter that accepts files whose size is >= minimum size |
| * and <= maximum size. |
| * |
| * @param minSizeInclusive the minimum file size (inclusive) |
| * @param maxSizeInclusive the maximum file size (inclusive) |
| * @return an appropriately configured IOFileFilter |
| * @see SizeFileFilter |
| * @since 1.3 |
| */ |
| public static IOFileFilter sizeRangeFileFilter(final long minSizeInclusive, final long maxSizeInclusive ) { |
| final IOFileFilter minimumFilter = new SizeFileFilter(minSizeInclusive, true); |
| final IOFileFilter maximumFilter = new SizeFileFilter(maxSizeInclusive + 1L, false); |
| return minimumFilter.and(maximumFilter); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file name ends with the specified text. |
| * |
| * @param suffix the file name suffix |
| * @return a suffix checking filter |
| * @see SuffixFileFilter |
| */ |
| public static IOFileFilter suffixFileFilter(final String suffix) { |
| return new SuffixFileFilter(suffix); |
| } |
| |
| /** |
| * Returns a filter that returns true if the file name ends with the specified text. |
| * |
| * @param suffix the file name suffix |
| * @param ioCase how to handle case sensitivity, null means case-sensitive |
| * @return a suffix checking filter |
| * @see SuffixFileFilter |
| * @since 2.0 |
| */ |
| public static IOFileFilter suffixFileFilter(final String suffix, final IOCase ioCase) { |
| return new SuffixFileFilter(suffix, ioCase); |
| } |
| |
| /** |
| * Create a List of file filters. |
| * |
| * @param filters The file filters |
| * @return The list of file filters |
| * @throws NullPointerException if the filters are null or contain a |
| * null value. |
| * @since 2.0 |
| */ |
| public static List<IOFileFilter> toList(final IOFileFilter... filters) { |
| return Stream.of(Objects.requireNonNull(filters, "filters")).map(Objects::requireNonNull).collect(Collectors.toList()); |
| } |
| |
| /** |
| * Returns a filter that always returns true. |
| * |
| * @return a true filter |
| * @see TrueFileFilter#TRUE |
| */ |
| public static IOFileFilter trueFileFilter() { |
| return TrueFileFilter.TRUE; |
| } |
| |
| /** |
| * FileFilterUtils is not normally instantiated. |
| */ |
| public FileFilterUtils() { |
| } |
| |
| } |
