Package eu.svjatoslav.commons.file

Class IOHelper

java.lang.Object

eu.svjatoslav.commons.file.IOHelper

public class IOHelper
extends Object

Constructor Summary

Constructors

Constructor	Description
IOHelper()

Method Summary

Modifier and Type	Method	Description
static void	deleteRecursively(File file)	Deletes files and directories recursively.
static byte[]	getFileContents(File file)
static String	getFileContentsAsString(File file)	Expects file content to be in UTF-8 encoding.
static boolean	overwriteFileIfContentDiffers(File file, byte[] newContent)	Compares new file content with old file content.
static void	saveToFile(File file, byte[] content)
static void	saveToFile(File file, String content)

Methods inherited from class java.lang.Object

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

Constructor Details

IOHelper

public IOHelper()

Method Details

deleteRecursively

public static void deleteRecursively(File file)
                              throws IOException

Deletes files and directories recursively. Does not follow symlinks.

Parameters:

file - directory to delete with entire contents.

Throws:

IOException - if filesystem error happens

getFileContents

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

Throws:

IOException

getFileContentsAsString

public static String getFileContentsAsString(File file)
                                      throws IOException

Expects file content to be in UTF-8 encoding.

Parameters:

file - file to read

Returns:

File content

Throws:

IOException - when file reading fails.

overwriteFileIfContentDiffers

public static boolean overwriteFileIfContentDiffers(File file,
 byte[] newContent)
                                             throws IOException

Compares new file content with old file content. If content in equal, then leaves file as-is. If content differs, then overrides file with the new content.

Parameters:

file - file to potentially overwrite

newContent - new content

Returns:

true if file was overwritten.

Throws:

FileNotFoundException - if file is not found.

IOException - if error happens during file IO.

saveToFile

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

Throws:

IOException

saveToFile

public static void saveToFile(File file,
 String content)
                       throws IOException

Throws:

IOException