Java FileInputStream Copy copyFile(File file, File newFile, boolean overwrite, boolean setLastModified)

Description

Copies the content of a file to another file.

License

Open Source License

Parameter

Parameter	Description
file	the file to be copied
newFile	the file to copy to
overwrite	if false, the file is not copied if newFile exists
setLastModified	if true, newFile gets the same date of file

Exception

Parameter	Description
IOException	if the content can't be copied due to an I/O error

Return

true if copied successfully, false otherwise

Declaration

public static boolean copyFile(File file, File newFile, boolean overwrite, boolean setLastModified)
        throws IOException 

Method Source Code

//package com.java2s;
/*/*w  w  w.  j av a 2s.c  om*/
 * Copyright 2004-2009 Luciano Vernaschi
 *
 * This file is part of MeshCMS.
 *
 * MeshCMS is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MeshCMS is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MeshCMS.  If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.File;
import java.io.FileInputStream;

import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;

import java.io.OutputStream;

public class Main {
    /**
     * A standard size for buffers.
     */
    public static final int BUFFER_SIZE = 2048;

    /**
     * Copies the content of a file to another file.
     *
     * @param file the file to be copied
     * @param newFile the file to copy to
     * @param overwrite if false, the file is not copied if newFile exists
     * @param setLastModified if true, newFile gets the same date of file
     *
     * @return true if copied successfully, false otherwise
     * @throws IOException if the content can't be copied due to an I/O error
     */
    public static boolean copyFile(File file, File newFile, boolean overwrite, boolean setLastModified)
            throws IOException {
        if (newFile.exists() && !overwrite) {
            return false;
        }

        FileInputStream fis = null;

        try {
            fis = new FileInputStream(file);
            copyStream(fis, new FileOutputStream(newFile), true);

            if (setLastModified) {
                newFile.setLastModified(file.lastModified());
            }
        } finally {
            if (fis != null) {
                fis.close();
            }
        }

        return true;
    }

    /**
     * Reads an <code>InputStream</code> and copy all data to an
     * <code>OutputStream</code>.
     *
     * @param in the Input Stream
     * @param out the Output Stream
     * @param closeOut if true, out is closed when the copy has finished
     *
     * @throws IOException if an I/O error occurs.
     */
    public static void copyStream(InputStream in, OutputStream out, boolean closeOut) throws IOException {
        byte b[] = new byte[BUFFER_SIZE];
        int n;

        try {
            while ((n = in.read(b)) != -1) {
                out.write(b, 0, n);
            }
        } finally {
            try {
                in.close();
            } finally {
                if (closeOut) {
                    out.close();
                }
            }
        }
    }
}

Related

1. copyFile(File destFile, File srcFile)
2. copyFile(File destination, File source)
3. copyFile(File existingFile, File destFile)
4. copyFile(File file, File destPath)
5. copyFile(File file, File dir)
6. copyFile(File file, OutputStream os)
7. copyFile(File fileSrc, File fileDest)
8. copyFile(File fileToCopy, File targetDir)
9. copyFile(File from, File to)