de.greenrobot.common.io

Class FileUtils

java.lang.Object

de.greenrobot.common.io.FileUtils

public class FileUtils
extends Object

Utils for dealing with files.

Author:

Markus

Constructor Summary

Constructors

Constructor and Description
FileUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	copyFile(File from, File to) Copies a file to another location.
static void	copyFile(String fromFilename, String toFilename) Copies a file to another location.
static String	getMd5(File file)
static String	getSha1(File file)
static byte[]	readBytes(File file)
static String	readChars(File file, String charset)
static Object	readObject(File file) To read an object in a quick & dirty way.
static String	readUtf8(File file)
static void	updateChecksum(File file, Checksum checksum)
static void	writeBytes(File file, byte[] content)
static void	writeChars(File file, String charset, CharSequence text)
static void	writeObject(File file, Object object) To store an object in a quick & dirty way.
static void	writeUtf8(File file, CharSequence text)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

FileUtils

public FileUtils()

Method Detail

readBytes

public static byte[] readBytes(File file)
                        throws IOException

Throws:

IOException

writeBytes

public static void writeBytes(File file,
              byte[] content)
                       throws IOException

Throws:

IOException

readUtf8

public static String readUtf8(File file)
                       throws IOException

Throws:

IOException

readChars

public static String readChars(File file,
               String charset)
                        throws IOException

Throws:

IOException

writeUtf8

public static void writeUtf8(File file,
             CharSequence text)
                      throws IOException

Throws:

IOException

writeChars

public static void writeChars(File file,
              String charset,
              CharSequence text)
                       throws IOException

Throws:

IOException

copyFile

public static void copyFile(File from,
            File to)
                     throws IOException

Copies a file to another location.

Throws:

IOException

copyFile

public static void copyFile(String fromFilename,
            String toFilename)
                     throws IOException

Copies a file to another location.

Throws:

IOException

readObject

public static Object readObject(File file)
                         throws IOException,
                                ClassNotFoundException

To read an object in a quick & dirty way. Prepare to handle failures when object serialization changes!

Throws:

IOException

ClassNotFoundException

writeObject

public static void writeObject(File file,
               Object object)
                        throws IOException

To store an object in a quick & dirty way.

Throws:

IOException

getMd5

public static String getMd5(File file)
                     throws IOException

Returns:

MD5 digest (32 characters).

Throws:

IOException

getSha1

public static String getSha1(File file)
                      throws IOException

Returns:

SHA-1 digest (40 characters).

Throws:

IOException

updateChecksum

public static void updateChecksum(File file,
                  Checksum checksum)
                           throws IOException

Throws:

IOException