Java Directory Copy nio copyDir(final String src, final String dest)

Description

copy Dir

License

Apache License

Declaration

public static void copyDir(final String src, final String dest) throws IOException, InterruptedException 

Method Source Code

//package com.java2s;
/**/*from  ww  w  .j  a  v a 2s .c  o  m*/
 * Sahi - Web Automation and Test Tool
 *
 * Copyright  2006  V Narayan Raman
 *
 * 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.
 */

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.nio.channels.FileChannel;

public class Main {
    public static void copyDir(final String src, final String dest) throws IOException, InterruptedException {
        copyDir(new File(src), new File(dest));
    }

    public static void copyDir(final File src, final File dest) throws IOException {
        dest.mkdirs();
        File[] files = src.listFiles();

        int j = files.length; // cache the length so it doesn't need to be looked up over and over in the loop
        for (int i = 0; i < j; i++) {
            File file = files[i];
            if (file.isDirectory()) {
                copyDir(file, new File(dest, file.getName()));
            } else {
                copyFile(file, new File(dest, file.getName()));
            }
        }
    }

    public static void copyFile(final String src, final String dest) throws IOException {
        copyFile(new File(src), new File(dest));
    }

    public static void copyFile(final File src, final File dest) throws IOException {
        dest.getParentFile().mkdirs();
        dest.createNewFile();

        FileChannel sourceChannel = new FileInputStream(src).getChannel();
        FileChannel targetChannel = new FileOutputStream(dest).getChannel();
        sourceChannel.transferTo(0, sourceChannel.size(), targetChannel);
        sourceChannel.close();
        targetChannel.close();
    }
}

Related

1. copyDir(File dir1, File dir2)
2. copyDir(File sourceDir, File targetDir)
3. copyDir(final Path fromPath, final Path toPath)
4. copyDir(Path from, Path to, IProgressMonitor monitor)
5. copyDir(String sourceDir, String targetDir)
6. copyDir(String src, String dst)
7. copyDirectiory(String sourceDir, String targetDir)