Android Directory Temp Create createTempDir(final String prefix, final String suffix)

Description

Creates temporary directory.

License

Apache License

Parameter

Parameter	Description
prefix	a string to use at the beginning of the directory's name.
suffix	a string to use at the end of the directory's name.

Return

a newly created (empty) directory on the system's tmp directory.

Declaration

public static File createTempDir(final String prefix,
        final String suffix) throws IOException 

Method Source Code

/*//from  w w  w.  j a  v  a  2s.  c o m
Copyright 2008 Flaptor (flaptor.com) 

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.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.Writer;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Set;
import java.util.zip.CRC32;
import java.util.zip.Checksum;
import org.apache.log4j.Logger;

public class Main{
    /**
     * Creates temporary directory.
     * @param prefix a string to use at the beginning of the directory's name.
     * @param suffix  a string to use at the end of the directory's name.
     * @return a newly created (empty) directory on the system's tmp directory.
     */
    public static File createTempDir(final String prefix,
            final String suffix) throws IOException {
        File retVal = null;
        java.util.Random random = new java.util.Random(
                System.currentTimeMillis());
        int retry = 0;
        while ((null == retVal) && retry < 20) {
            retVal = new File(System.getProperty("java.io.tmpdir")
                    + File.separator + prefix + random.nextInt() + suffix);
            if (!retVal.mkdir()) {
                retVal = null;
                retry++;
            }
        }
        if (null == retVal) {
            throw new IOException("Can't create a temporary directory in "
                    + System.getProperty("java.io.tmpdir"));
        }
        retVal.deleteOnExit();
        return retVal;
    }
}

Related

1. createTempDir()
2. createTempDir(String dirname)
3. createTempDirectory()
4. mainTempDir()
5. mktempdir()
6. mktempdir(String filePrefix)