Java FileInputStream Copy copyFile(File original, File destination)

Description

Copy the file original to the file destination.

License

Apache License

Parameter

Parameter	Description
original	the original file
destination	the destination file

Exception

Parameter	Description
IOException	for exceptions during IO

Declaration

public static void copyFile(File original, File destination) throws IOException 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright 2015 DANS - Data Archiving and Networked Services
 *
 * 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
 *  /*  w  ww.java2s  .c om*/
 * 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.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class Main {
    /**
     * Copy the file <code>original</code> to the file <code>destination</code>.
     * 
     * @param original
     *        the original file
     * @param destination
     *        the destination file
     * @throws IOException
     *         for exceptions during IO
     */
    public static void copyFile(File original, File destination) throws IOException {
        if (!original.exists()) {
            throw new FileNotFoundException("File not found: " + original.getName());
        }
        if (original.isHidden()) {
            return;
        }
        if (original.equals(destination)) {
            throw new IOException("Cannot copy " + original.getName() + " into itself.");
        }
        if (original.isDirectory() && destination.isFile()) {
            throw new IOException("Cannot copy the contents of '" + original.getName() + "' to the file "
                    + destination.getName());
        }

        File finalDestination;
        if (destination.isDirectory()) {
            finalDestination = new File(destination, original.getName());
        } else {
            finalDestination = destination;
        }

        if (original.isDirectory()) {
            finalDestination.mkdirs();
            for (File f : original.listFiles()) {
                copyFile(f, finalDestination);
            }
        } else {
            FileInputStream fis = null;
            FileOutputStream fos = null;
            try {
                fis = new FileInputStream(original);
                fos = new FileOutputStream(finalDestination);
                byte[] buffer = new byte[4096];
                int read = fis.read(buffer);
                while (read != -1) {
                    fos.write(buffer, 0, read);
                    read = fis.read(buffer);
                }
            } finally {
                closeStreams(fis, fos);
            }
        }
    }

    private static void closeStreams(FileInputStream fis, FileOutputStream fos) throws IOException {
        try {
            if (fis != null) {
                fis.close();
            }
        } finally {
            if (fos != null) {
                fos.close();
            }
        }
    }
}

Related

1. copyFile(File oldFile, File newFile)
2. copyFile(File oldFile, String newPath)
3. copyFile(File orig, File dest)
4. copyFile(File orig, File dest, boolean overwrite)
5. copyFile(File original, File copy)
6. copyFile(File original, File parent)
7. copyFile(File originalFile, File destinationDir)
8. copyFile(File pSrc, File pDst, boolean pForce)
9. copyFile(File source, File dest)