com.github.nosan.embedded.cassandra.commons

Class FileUtils

java.lang.Object

com.github.nosan.embedded.cassandra.commons.FileUtils

public final class FileUtils
extends Object

Simple utility methods for dealing with files and directories.

Since:

4.0.0

Author:

Dmytro Nosan

Method Summary

Modifier and Type	Method and Description
static String	checksum(Path file, String algorithm) Computes the checksum of the file using the provided algorithm.
static void	copy(Path src, Path dest, BiPredicate<? super Path,? super BasicFileAttributes> filter, CopyOption... options) Copies a path to a target path.
static void	copy(Path src, Path dest, CopyOption... options) Copies a path to a target path.
static boolean	delete(Path path) Deletes the supplied Path.

Methods inherited from class java.lang.Object

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

Method Detail

delete

public static boolean delete(Path path)
                      throws IOException

Deletes the supplied Path. For directories, recursively delete any nested directories or files as well.

Parameters:

path - the path to delete

Returns:

true if the path existed and was deleted, or false it did not exist

Throws:

IOException - in the case of I/O errors

copy

public static void copy(Path src,
                        Path dest,
                        CopyOption... options)
                 throws IOException

Copies a path to a target path. For directories, it will be copied recursively.

Parameters:

src - the source path

dest - the destination path

options - specifying how the copy should be done the path to the target file

Throws:

IOException - in the case of I/O errors

copy

public static void copy(Path src,
                        Path dest,
                        BiPredicate<? super Path,? super BasicFileAttributes> filter,
                        CopyOption... options)
                 throws IOException

Copies a path to a target path. For directories, it will be copied recursively.

Parameters:

src - the source path

dest - the destination path

options - specifying how the copy should be done the path to the target file

filter - the function used to decide whether a path should be copied or not

Throws:

IOException - in the case of I/O errors

checksum

public static String checksum(Path file,
                              String algorithm)
                       throws NoSuchAlgorithmException,
                              IOException

Computes the checksum of the file using the provided algorithm.

Parameters:

file - the file to read

algorithm - the name of the algorithm.

Returns:

the computed checksum in lowercase hex format

Throws:

NoSuchAlgorithmException - if no Provider supports a MessageDigestSpi implementation for the specified algorithm.

IOException - in the case of I/O errors