Java Folder Copy nio copyFolder(File sourceFolder, File destinationFolder)

Description

copy Folder

License

Open Source License

Declaration

public static void copyFolder(File sourceFolder, File destinationFolder) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.*;

import java.nio.channels.FileChannel;

public class Main {
    public static void copyFolder(File sourceFolder, File destinationFolder) {
        copyFolder(sourceFolder, destinationFolder, true);
    }/*from   w ww . ja va2s.com*/

    public static void copyFolder(File sourceFolder, File destinationFolder, boolean overwrite) {
        if (sourceFolder.isDirectory()) {
            if (!destinationFolder.exists()) {
                destinationFolder.mkdirs();
            }
            String files[] = sourceFolder.list();
            for (String file : files) {
                File srcFile = new File(sourceFolder, file);
                File destFile = new File(destinationFolder, file);
                copyFolder(srcFile, destFile);
            }
        } else {
            copyFile(sourceFolder, destinationFolder, overwrite);
        }
    }

    public static void copyFile(File sourceFile, File destinationFile) {
        copyFile(sourceFile, destinationFile, true);
    }

    public static void copyFile(File sourceFile, File destinationFile, boolean overwrite) {
        try {
            if (sourceFile.exists()) {
                if (!overwrite && destinationFile.exists()) {
                    System.out.println("Destination file exists\n" + sourceFile.getAbsolutePath());
                    return;
                }
                if (!destinationFile.exists()) {
                    destinationFile.createNewFile();
                }
                FileChannel sourceStream = null, destinationStream = null;
                try {
                    sourceStream = new FileInputStream(sourceFile).getChannel();
                    destinationStream = new FileOutputStream(destinationFile).getChannel();
                    destinationStream.transferFrom(sourceStream, 0, sourceStream.size());
                } finally {
                    if (sourceStream != null) {
                        sourceStream.close();
                    }
                    if (destinationStream != null) {
                        destinationStream.close();
                    }
                }
            } else {
                System.out.println("Source file does not exist\n" + sourceFile.getAbsolutePath());
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
}

Related

1. copyFolder(File sourceFolder, File destinationFolder)
2. copyFolder(File sourceFolder, File destinationFolder, List blacklist)
3. copyFolder(File src, File dest)
4. copyFolder(File src, File dest)