com.logicaldoc.util.io

Class FileUtil

java.lang.Object

com.logicaldoc.util.io.FileUtil

public class FileUtil
extends Object

This class manages I/O operations with files.

Version:

4.0

Author:

Marco Meschieri - Logical Objects

Field Summary

Fields

Modifier and Type	Field and Description
protected static org.slf4j.Logger	log

Constructor Summary

Constructors

Constructor and Description
FileUtil()

Method Summary

Methods

Modifier and Type	Method and Description
static void	appendFile(String text, String filepath)
static String	computeDigest(File file) This method calculates the digest of a file using the algorithm SHA-1.
static String	computeDigest(InputStream is)
static byte[]	computeSha1Hash(File file) This method calculates the digest of a file using the algorithm SHA-1.
static byte[]	computeSha1Hash(InputStream is) This method calculates the digest of a inputStram content using the algorithm SHA-1.
static void	copyFile(File sourceFile, File destFile)
static void	copyResource(String resourceName, File out) Writes the specified classpath resource into a file
static String	getDisplaySize(long size, String language) Renders a file size in a more readable behaviour taking into account the user locale.
static String	getDisplaySizeKB(long size, String language) Renders a file size in a more readable behaviour taking into account the user locale.
static long	getFolderSize(File folder) Computes the folder size as the sum of all files directly and indirectly contained.
static boolean	matches(String filename, String[] includes, String[] excludes) Check if a given filename matches the includes and not the excludes
static boolean	matches(String filename, String includes, String excludes) Check if a given filename matches the includes and not the excludes
static void	replaceInFile(String sourcePath, String token, String newValue)
static void	strongDelete(File file)
static byte[]	toByteArray(File file)
static void	writeFile(InputStream in, String filepath)
static void	writeFile(String text, String filepath)
static void	writeUTF8(String content, File file, boolean append)

Methods inherited from class java.lang.Object

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

Field Detail

log

protected static org.slf4j.Logger log

Constructor Detail

FileUtil

public FileUtil()

Method Detail

writeFile

public static void writeFile(InputStream in,
             String filepath)
                      throws Exception

Throws:

Exception

writeFile

public static void writeFile(String text,
             String filepath)

appendFile

public static void appendFile(String text,
              String filepath)

computeDigest

public static String computeDigest(InputStream is)

computeDigest

public static String computeDigest(File file)

This method calculates the digest of a file using the algorithm SHA-1.

Parameters:

file - The file for which will be computed the digest

Returns:

digest

computeSha1Hash

public static byte[] computeSha1Hash(File file)

This method calculates the digest of a file using the algorithm SHA-1.

Parameters:

file - The file for which will be computed the digest

Returns:

digest

computeSha1Hash

public static byte[] computeSha1Hash(InputStream is)

This method calculates the digest of a inputStram content using the algorithm SHA-1.

Parameters:

file - The file for which will be computed the digest

Returns:

digest

copyResource

public static void copyResource(String resourceName,
                File out)
                         throws IOException

Writes the specified classpath resource into a file

Parameters:

resourceName - Fully qualified resource name

out - The output file

Throws:

IOException

getFolderSize

public static long getFolderSize(File folder)

Computes the folder size as the sum of all files directly and indirectly contained.

getDisplaySize

public static String getDisplaySize(long size,
                    String language)

Renders a file size in a more readable behaviour taking into account the user locale. Depending on the size, the result will be presented in the following measure units: GB, MB, KB or Bytes

Parameters:

size - Size to be rendered

language - The language for the format symbols

Returns:

getDisplaySizeKB

public static String getDisplaySizeKB(long size,
                      String language)

Renders a file size in a more readable behaviour taking into account the user locale. The size is always rendered in the KB(kilobyte) measure unit.

Parameters:

size - Size to be rendered

language - The language for the format symbols

Returns:

matches

public static boolean matches(String filename,
              String[] includes,
              String[] excludes)

Check if a given filename matches the includes and not the excludes

Parameters:

filename - The filename to consider

includes - list of includes expressions (eg. *.doc,*dummy*)

excludes - list of excludeses expressions (eg. *.doc,*dummy*)

Returns:

true only if the passed filename matches the includes and not the excludes

matches

public static boolean matches(String filename,
              String includes,
              String excludes)

Check if a given filename matches the includes and not the excludes

Parameters:

filename - The filename to consider

includes - comma-separated list of includes expressions (eg. *.doc,*dummy*)

excludes - comma-separated list of excludeses expressions (eg. *.doc,*dummy*)

Returns:

true only if the passed filename matches the includes and not the excludes

writeUTF8

public static void writeUTF8(String content,
             File file,
             boolean append)

toByteArray

public static byte[] toByteArray(File file)

replaceInFile

public static void replaceInFile(String sourcePath,
                 String token,
                 String newValue)
                          throws Exception

Throws:

Exception

copyFile

public static void copyFile(File sourceFile,
            File destFile)
                     throws IOException

Throws:

IOException

strongDelete

public static void strongDelete(File file)