Android File Rename rename(File fromFile, File toFile)

Description

Renames fromFile to toFile.

License

Apache License

Exception

Parameter	Description
FileRenameException	if <code>fromFile</code> cannot berenamed to toFile

Declaration

public static void rename(File fromFile, File toFile)
        throws FileRenameException 

Method Source Code

/*//from   ww  w .  j a v  a 2 s .  c o  m
    Copyright 1996-2008 Ariba, 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.

    $Id: //ariba/platform/util/core/ariba/util/core/FileUtil.java#24 $
 */

import ariba.util.log.Log;
import java.io.File;
import java.io.IOException;
import java.io.FileFilter;
import java.io.FilenameFilter;
import java.util.Random;
import java.util.List;

public class Main{
    /**
        Renames <code>fromFile</code> to <code>toFile</code>. <p/>

        @throws FileRenameException if <code>fromFile</code> cannot be
                renamed to toFile
        @aribaapi ariba
     */
    public static void rename(File fromFile, File toFile)
            throws FileRenameException {
        boolean success = false;
        Random random = null;
        for (int i = 0; i < 3; i++) {
            if (i > 0) {
                try {
                    // 1-562AXC Sometimes two nodes are trying to rename the same file
                    // and each causes the other's rename to fail.  Add a random
                    // value to sleep to try to break them up and allow one to succeed.
                    random = (random != null) ? random : new Random();
                    Thread.sleep(100 + random.nextInt(128));
                } catch (InterruptedException ex) {
                    Log.util.debug("Got InterrupttedException: %s", ex);
                }
            }
            if (fromFile.renameTo(toFile)) {
                success = true;
                break;
            }
            Log.util.debug("Trial %s failed, rename %s to %s",
                    Constants.getInteger(i), fromFile, toFile);
        }
        if (!success) {
            throw new FileRenameException(fromFile, toFile);
        }
    }
}

Related

1. mark(String pathName, String tag)
2. rename(File file1, File file2)
3. rename(String from, String to)
4. rename(String oldName, String newName)
5. renameAs(String pathDir, String name, String wishName)
6. renameFile(File source, File dest)