Android Folder Copy copyFolder(File sF, File tF)

Description

copy Folder

License

Apache License

Declaration

public static void copyFolder(File sF, File tF) throws IOException 

Method Source Code

/**//from w  w  w. j  ava  2  s .  c  o  m
 *  Copyright 2009 Welocalize, 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.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.Set;
import java.util.regex.Matcher;
import java.util.regex.Pattern;
import org.apache.log4j.Logger;

public class Main{
    public static void copyFolder(File sF, File tF) throws IOException {
        String sP = sF.getAbsolutePath().replace("\\", "/");
        String tP = tF.getAbsolutePath().replace("\\", "/");

        List<File> alls = getAllFiles(sF);
        for (File f : alls) {
            String path = f.getAbsolutePath().replace("\\", "/");
            path = path.replace(sP, tP);

            copyFile(f, new File(path));
        }
    }
    /**
     * Gets all files under the specified fold.
     * 
     * @param root
     *            the specified fold
     * @return A list includes all files under the specified fold.
     */
    public static List<File> getAllFiles(File root) {
        return getAllFiles(root, null);
    }
    /**
     * Gets all files under the specified fold.
     * 
     * @param root
     *            the specified fold
     * @return A list includes all files under the specified fold.
     */
    public static List<File> getAllFiles(File root, FileFilter filter) {
        Assert.assertFileExist(root);

        List<File> files = new ArrayList<File>();
        if (root.isFile()) {
            if (filter == null || filter.accept(root)) {
                files.add(root);
            }
        } else {
            File[] fs = root.listFiles();
            for (File f : fs) {
                files.addAll(getAllFiles(f, filter));
            }
        }

        return files;
    }
    /**
     * Copies one file to a specified file.
     * 
     * @param src
     * @param dst
     * @throws IOException
     * @throws Exception
     */
    public static void copyFile(File src, File dst) throws IOException {
        File parent = dst.getParentFile();
        if (!parent.exists()) {
            parent.mkdirs();
        }

        FileInputStream fis = null;
        FileOutputStream fos = null;
        try {
            int len = 0;
            byte[] buf = new byte[1024];
            fis = new FileInputStream(src);
            fos = new FileOutputStream(dst);
            while ((len = fis.read(buf)) != -1) {
                fos.write(buf, 0, len);
            }
            fos.flush();
        } finally {
            if (fis != null) {
                fis.close();
            }

            if (fos != null) {
                fos.close();
            }
        }
    }
}

Related

1. copyFolder(File src, File dest)
2. copyFolder(File src, File dest)
3. copyFolder(String from, String target, List ingores)
4. copyFolder(File fromFolder, File toFolder)