recursively Get Files In Directory - Java File Path IO

Java examples for File Path IO:Directory

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Description

recursively Get Files In Directory

Demo Code

/*//from w  w w  .  ja va  2  s . co m
 * Copyright 2012 Joseph Spencer
 *
 * Licensed 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 com.java2s;

import java.io.File;
import java.io.FileFilter;

import java.util.ArrayList;

public class Main {
    public static ArrayList<File> recursivelyGetFilesInDirectory(
            File directory, FileFilter filter) {
        return getFilesInDirectory(directory, new ArrayList<File>(),
                filter, true);
    }

    public static ArrayList<File> getFilesInDirectory(File directory,
            FileFilter filter) {
        return getFilesInDirectory(directory, new ArrayList<File>(),
                filter, false);
    }

    public static ArrayList<File> getFilesInDirectory(File directory,
            FileFilter filter, boolean recursive) {
        return getFilesInDirectory(directory, new ArrayList<File>(),
                filter, recursive);
    }

    public static ArrayList<File> getFilesInDirectory(File directory,
            ArrayList<File> files, FileFilter filter, boolean recursive) {
        if (directory != null && directory.isDirectory()) {
            File[] listings = filter != null ? directory.listFiles(filter)
                    : directory.listFiles();

            if (listings != null) {
                for (int i = 0; i < listings.length; i++) {
                    File item = listings[i];
                    if (item.isDirectory() && recursive) {
                        getFilesInDirectory(item, files, filter, recursive);
                    } else {
                        files.add(item);
                    }
                }
            }
        }

        return files;
    }
}

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