com.jdroid.java.utils

Class FileUtils

java.lang.Object

com.jdroid.java.utils.FileUtils

public abstract class FileUtils
extends Object

This class contains functions for working with files within the application.

Field Summary

Fields

Modifier and Type	Field and Description
static int	BYTES_TO_MB

Constructor Summary

Constructors

Constructor and Description
FileUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static File	checkFile(String filePath)
static ByteArrayInputStream	copy(InputStream source)
static void	copyStream(InputStream source, File destin)
static void	copyStream(InputStream source, OutputStream destin)
static void	copyStream(InputStream source, OutputStream destin, Boolean closeOutputStream)
static void	createFile(String content, String parentPath, String fileName)
static File	createTempDir()
static File	createTempFile()
static boolean	exist(String filePath)
static void	forceDelete(File file) Deletes an instance of File even if it is a directory containing files. If the file is a directory and has contents, then executes itself on every content.
static long	getDirectorySize(File directory) Counts the size of a directory recursively (sum of the length of all files).
static float	getDirectorySizeInMB(File directory)
static long	getFileSize(File file)
static float	getFileSizeInMB(File file)
static byte[]	readAsBytes(File file) Reads the file and returns a byte array with all the information
static byte[]	readAsBytes(InputStream inputStream) Reads the inputStream and returns a byte array with all the information
static boolean	renameOrMove(File fileToBeMoved, File destination) Renames or moves a determined File instance to a destination defined by another File instance. Differs from the File.renameTo(File) method in the fact that this method logs if the operation was successful.
static void	safeClose(Closeable closeable)
static String	toString(File file) Receives a File and iterates over all its lines and returns a String.
static String	toString(InputStream in) Receives an InputStream and iterates over all its lines and returns a String.
static String	toString(InputStream in, Boolean closeStream)
static File	toTempFile(String content)
static File	zipFile(String directoryToZipPath)

Methods inherited from class java.lang.Object

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

Field Detail

BYTES_TO_MB

public static final int BYTES_TO_MB

See Also:

Constant Field Values

Constructor Detail

FileUtils

public FileUtils()

Method Detail

readAsBytes

public static byte[] readAsBytes(InputStream inputStream)
                          throws IOException

Reads the inputStream and returns a byte array with all the information

Parameters:

inputStream - The inputStream to be read

Returns:

A byte array with all the inputStream's information

Throws:

IOException - The exception thrown when an error reading the inputStream happens

readAsBytes

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

Reads the file and returns a byte array with all the information

Parameters:

file - The file to be read

Returns:

A byte array with all the file's information

Throws:

IOException - The exception thrown when an error reading the file happens

checkFile

public static File checkFile(String filePath)

Parameters:

filePath - The path to the file

Returns:

a file

exist

public static boolean exist(String filePath)

Parameters:

filePath - The file path to the file for verify the existence

Returns:

True if exist a file with in the file path

forceDelete

public static void forceDelete(File file)

Deletes an instance of File even if it is a directory containing files.
If the file is a directory and has contents, then executes itself on every content.

Parameters:

file - The File to be deleted.

See Also:

File.delete()

renameOrMove

public static boolean renameOrMove(File fileToBeMoved,
                   File destination)

Renames or moves a determined File instance to a destination defined by another File instance.
Differs from the File.renameTo(File) method in the fact that this method logs if the operation was successful.

Parameters:

fileToBeMoved - The file to be renamed or moved.

destination - The File instance that denotes the new location

Returns:

boolean true if the file has been successfully renamed or moved.

See Also:

File.renameTo(File)

createTempFile

public static File createTempFile()

createTempDir

public static File createTempDir()

toTempFile

public static File toTempFile(String content)

createFile

public static void createFile(String content,
              String parentPath,
              String fileName)

toString

public static String toString(File file)

Receives a File and iterates over all its lines and returns a String.

Parameters:

file - The file

Returns:

The content of the file as String

toString

public static String toString(InputStream in,
              Boolean closeStream)

toString

public static String toString(InputStream in)

Receives an InputStream and iterates over all its lines and returns a String.

Parameters:

in - the InputStream to be converted

Returns:

The content of the file as String

copyStream

public static void copyStream(InputStream source,
              File destin)

Parameters:

source - the source InputStream

destin - the destin File

copyStream

public static void copyStream(InputStream source,
              OutputStream destin,
              Boolean closeOutputStream)

Parameters:

source - the source InputStream

destin - the destin OutputStream

closeOutputStream -

copyStream

public static void copyStream(InputStream source,
              OutputStream destin)

Parameters:

source - the source InputStream

destin - the destin OutputStream

copy

public static ByteArrayInputStream copy(InputStream source)

Parameters:

source - the source InputStream

Returns:

the input stream that can be reset ByteArrayInputStream

zipFile

public static File zipFile(String directoryToZipPath)

safeClose

public static void safeClose(Closeable closeable)

getDirectorySize

public static long getDirectorySize(File directory)

Counts the size of a directory recursively (sum of the length of all files).

Parameters:

directory - directory to inspect, must not be null

Returns:

size of directory in bytes, 0 if directory is security restricted

getFileSize

public static long getFileSize(File file)

getDirectorySizeInMB

public static float getDirectorySizeInMB(File directory)

getFileSizeInMB

public static float getFileSizeInMB(File file)