Java Copy Directory copyDirectory(File src, File dest, boolean force)

Description

copy Directory

License

Apache License

Declaration

public static void copyDirectory(File src, File dest, boolean force) throws IOException 

Method Source Code

//package com.java2s;
/*//from  w w  w  . ja v  a 2  s  . c o m
 * Copyright (C) 2017 CenturyLink, Inc.
 *
 * 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.io.InputStream;
import java.io.OutputStream;

public class Main {
    public static void copyDirectory(File src, File dest, boolean force) throws IOException {
        if (!src.exists())
            throw new IOException("Source directory does not exist: " + src);
        if (src.isDirectory()) {
            if (!dest.exists()) {
                if (!dest.mkdir())
                    throw new IOException("Unable to create directory: " + dest);
            }

            for (String file : src.list()) {
                File srcFile = new File(src, file);
                File destFile = new File(dest, file);
                copyDirectory(srcFile, destFile, force);
            }
        } else {
            if (force || src.lastModified() > dest.lastModified()) {
                InputStream in = null;
                OutputStream out = null;
                try {
                    in = new FileInputStream(src);
                    out = new FileOutputStream(dest);
                    byte[] buffer = new byte[1024];
                    int length;
                    while ((length = in.read(buffer)) > 0)
                        out.write(buffer, 0, length);
                } finally {
                    if (in != null)
                        in.close();
                    if (out != null)
                        out.close();
                }
            }
        }
    }
}

Related

1. copyDirectory(File src, File dest)
2. copyDirectory(File src, File dst)
3. copyDirectory(File srcDir, File destDir)
4. copyDirectory(File srcDir, File dstDir)
5. copyDirectory(File srcDir, File dstDir)