jfilesyslib.utils

Class FileSystemUtils

java.lang.Object

jfilesyslib.utils.FileSystemUtils

public class FileSystemUtils
extends java.lang.Object

Contains some file system utilities to write/read files directly on the file system

Author:

Marc Miltenberger

Method Summary

Methods

Modifier and Type	Method and Description
static java.lang.String[]	readLines(FileSystem filesystem, java.lang.String file) Reads a text file fully into memory and splits the lines.
static java.lang.String[]	readLines(FileSystem filesystem, java.lang.String file, java.lang.String[] defaultReturn) Reads a text file fully into memory and splits the lines.
static byte[]	readWhole(FileSystem filesystem, java.lang.String file) Reads a binary file fully into memory.
static java.lang.String	readWholeText(FileSystem filesystem, java.lang.String file) Reads a text file fully into memory.
static boolean	simpleByteArrayCompare(byte[] byt1, byte[] byt2) Performs a byte array comparison.
static void	writeLines(FileSystem filesystem, java.lang.String file, java.lang.String[] content) Writes the lines into a text file.
static void	writeWhole(FileSystem filesystem, java.lang.String file, byte[] content) Writes the content into a file.
static void	writeWholeText(FileSystem filesystem, java.lang.String file, java.lang.String content) Writes the text into a text file.

Methods inherited from class java.lang.Object

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

Method Detail

simpleByteArrayCompare

public static boolean simpleByteArrayCompare(byte[] byt1,
                             byte[] byt2)

Performs a byte array comparison.

Parameters:

byt1 - the first byte array

byt2 - the second byte array

Returns:

true iff the byte arrays are equal

readLines

public static java.lang.String[] readLines(FileSystem filesystem,
                           java.lang.String file,
                           java.lang.String[] defaultReturn)

Reads a text file fully into memory and splits the lines.

Parameters:

filesystem - the file system

file - the file

defaultReturn - the default return value

Returns:

the lines or the default return value if an error ocurred

readLines

public static java.lang.String[] readLines(FileSystem filesystem,
                           java.lang.String file)
                                    throws PathNotFoundException,
                                           AccessDeniedException,
                                           NotAFileException

Reads a text file fully into memory and splits the lines.

Parameters:

filesystem - the file system

file - the file

Returns:

the lines

Throws:

PathNotFoundException - the path was not found

AccessDeniedException - the access is denied

NotAFileException - the given path is not a file

readWholeText

public static java.lang.String readWholeText(FileSystem filesystem,
                             java.lang.String file)
                                      throws PathNotFoundException,
                                             AccessDeniedException,
                                             NotAFileException

Reads a text file fully into memory.

Parameters:

filesystem - the file system

file - the file

Returns:

the content

Throws:

PathNotFoundException - the path was not found

AccessDeniedException - the access is denied

NotAFileException - the given path is not a file

readWhole

public static byte[] readWhole(FileSystem filesystem,
               java.lang.String file)
                        throws PathNotFoundException,
                               AccessDeniedException,
                               NotAFileException

Reads a binary file fully into memory.

Parameters:

filesystem - the file system

file - the file

Returns:

the content

Throws:

PathNotFoundException - the path was not found

AccessDeniedException - the access is denied

NotAFileException - the given path is not a file

writeLines

public static void writeLines(FileSystem filesystem,
              java.lang.String file,
              java.lang.String[] content)
                       throws PathNotFoundException,
                              AccessDeniedException,
                              NotAFileException,
                              DriveFullException

Writes the lines into a text file.

Parameters:

filesystem - the file system

file - the file

content - the content (lines)

Throws:

PathNotFoundException - the path was not found

AccessDeniedException - the access is denied

NotAFileException - the given path is not a file

DriveFullException - there is no more space

writeWholeText

public static void writeWholeText(FileSystem filesystem,
                  java.lang.String file,
                  java.lang.String content)
                           throws PathNotFoundException,
                                  AccessDeniedException,
                                  NotAFileException,
                                  DriveFullException

Writes the text into a text file.

Parameters:

filesystem - the file system

file - the file

content - the content

Throws:

PathNotFoundException - the path was not found

AccessDeniedException - the access is denied

NotAFileException - the given path is not a file

DriveFullException - there is no more space

writeWhole

public static void writeWhole(FileSystem filesystem,
              java.lang.String file,
              byte[] content)
                       throws PathNotFoundException,
                              AccessDeniedException,
                              NotAFileException,
                              DriveFullException

Writes the content into a file.

Parameters:

filesystem - the file system

file - the file

content - the content

Throws:

PathNotFoundException - the path was not found

AccessDeniedException - the access is denied

NotAFileException - the given path is not a file

DriveFullException - there is no more space