de.unkrig.commons.file

Class FileUtil

java.lang.Object

de.unkrig.commons.file.FileUtil

public final class FileUtil
extends Object

Utility class for various file operations.

Method Summary

Modifier and Type	Method and Description
static boolean	attemptToDeleteRecursively(File file) Similar to File.delete(), but clears and deletes directory trees recursively.
static void	deleteRecursively(File file) Deletes the given regular file, or clears and deletes the given directory recursively.
static ProducerWhichThrows<ByteArrayInputStream,IOException>	opener(byte[] data)
static ProducerWhichThrows<FileInputStream,IOException>	opener(File file)
static <EX extends Throwable> void	processContent(File file, Charset charset, ConsumerWhichThrows<? super Reader,? extends EX> processor) Opens the named file, lets the processor read text from it, and closes the file.
static <EX extends Throwable> void	processContent(Reader reader, ConsumerWhichThrows<? super Reader,? extends EX> processor) Passes the given reader to the processor, and then closes the file.
static void	rename(File oldFile, File newFile)

Methods inherited from class java.lang.Object

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

Method Detail

attemptToDeleteRecursively

public static boolean attemptToDeleteRecursively(File file)

Similar to File.delete(), but clears and deletes directory trees recursively.

Parameters:

file - The regular file or directory to delete

Returns:

Whether the regular file or the directory and its members could successfully be deleted

deleteRecursively

public static void deleteRecursively(File file)
                              throws IOException

Deletes the given regular file, or clears and deletes the given directory recursively.

Throws:

IOException - The file could not be deleted

rename

public static void rename(File oldFile,
                          File newFile)
                   throws IOException

Throws:

IOException - Renaming failed

See Also:

File.renameTo(File)

processContent

public static <EX extends Throwable> void processContent(File file,
                                                         Charset charset,
                                                         ConsumerWhichThrows<? super Reader,? extends EX> processor)
                                                  throws IOException,
                                                         EX extends Throwable

Opens the named file, lets the processor read text from it, and closes the file.

Parameters:

charset - The charset to be used for reading

Throws:

EX - The throwable that the processor may throw

IOException

EX extends Throwable

processContent

public static <EX extends Throwable> void processContent(Reader reader,
                                                         ConsumerWhichThrows<? super Reader,? extends EX> processor)
                                                  throws IOException,
                                                         EX extends Throwable

Passes the given reader to the processor, and then closes the file.

Throws:

EX - The throwable that the processor may throw

IOException

EX extends Throwable

opener

public static ProducerWhichThrows<FileInputStream,IOException> opener(File file)

Returns:

On opener which produces FileInputStreams for the given file

opener

public static ProducerWhichThrows<ByteArrayInputStream,IOException> opener(byte[] data)

Returns:

On opener which produces ByteArrayInputStreams for the given data