jodd.io

Class FileUtil

java.lang.Object

jodd.io.FileUtil

public class FileUtil
extends java.lang.Object

File utilities.

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	tempFilePrefix Default prefix for temporary files.

Constructor Summary

Constructors

Constructor and Description
FileUtil()

Method Summary

Modifier and Type	Method and Description
static void	appendBytes(java.io.File dest, byte[] data)
static void	appendBytes(java.io.File dest, byte[] data, int off, int len) Appends bytes.
static void	appendBytes(java.lang.String dest, byte[] data)
static void	appendBytes(java.lang.String dest, byte[] data, int off, int len)
static void	appendString(java.io.File dest, java.lang.String data)
static void	appendString(java.io.File dest, java.lang.String data, java.nio.charset.Charset encoding) Appends String.
static void	appendString(java.lang.String dest, java.lang.String data)
static void	appendString(java.lang.String dest, java.lang.String data, java.nio.charset.Charset encoding)
static void	cleanDir(java.io.File destDir) Cleans a directory without deleting it.
static void	cleanDir(java.lang.String dest)
static boolean	compare(java.io.File one, java.io.File two) Compare the contents of two Files to determine if they are equal or not.
static boolean	compare(java.lang.String file1, java.lang.String file2)
static void	copy(java.io.File src, java.io.File dest) Smart copy.
static void	copy(java.lang.String src, java.lang.String dest)
static void	copyDir(java.io.File srcDir, java.io.File destDir) Copies directory with specified copy params.
static void	copyDir(java.lang.String srcDir, java.lang.String destDir)
static void	copyFile(java.io.File srcFile, java.io.File destFile) Copies a File to another File.
static void	copyFile(java.lang.String srcFile, java.lang.String destFile)
static java.io.File	copyFileToDir(java.io.File srcFile, java.io.File destDir) Copies a File to directory with specified copy params and returns copied destination.
static java.io.File	copyFileToDir(java.lang.String srcFile, java.lang.String destDir)
static java.io.File	createTempDirectory()
static java.io.File	createTempDirectory(java.lang.String prefix, java.lang.String suffix)
static java.io.File	createTempDirectory(java.lang.String prefix, java.lang.String suffix, java.io.File tempDir) Creates temporary directory.
static java.io.File	createTempFile()
static java.io.File	createTempFile(java.lang.String prefix, java.lang.String suffix, java.io.File tempDir) Creates temporary File.
static java.io.File	createTempFile(java.lang.String prefix, java.lang.String suffix, java.io.File tempDir, boolean create) Creates temporary File.
static void	delete(java.io.File dest) Smart delete of destination file or directory.
static void	delete(java.lang.String dest)
static void	deleteDir(java.io.File destDir) Deletes a directory.
static void	deleteDir(java.lang.String destDir)
static void	deleteFile(java.io.File destFile) Deletes a File.
static void	deleteFile(java.lang.String destFile)
static boolean	equals(java.io.File one, java.io.File two) Checks if two Files point to the same File.
static boolean	equals(java.lang.String one, java.lang.String two)
static java.io.File	file(java.lang.String fileName) Simple factory for File objects but with home resolving.
static java.io.File	getParentFile(java.io.File file) Returns parent for the file.
static boolean	isAncestor(java.io.File ancestor, java.io.File file, boolean strict) Check if one File is an ancestor of second one.
static boolean	isBinary(java.io.File file) Checks the start of the file for ASCII control characters
static boolean	isExistingFile(java.io.File file) Returns true if File exists.
static boolean	isExistingFolder(java.io.File folder) Returns true if directory exists.
static boolean	isFilePathAcceptable(java.io.File file, java.io.FileFilter fileFilter) Checks if file and its ancestors are acceptable by using FileFilter.accept(File).
static boolean	isNewer(java.io.File file, java.io.File reference) Uses File.lastModified() for reference.
static boolean	isNewer(java.io.File file, long timeMillis) Tests if the specified File is newer than the specified time reference.
static boolean	isNewer(java.lang.String file, long timeMillis)
static boolean	isNewer(java.lang.String file, java.lang.String reference)
static boolean	isOlder(java.io.File file, java.io.File reference) Uses File.lastModified() for reference.
static boolean	isOlder(java.io.File file, long timeMillis) Tests if the specified File is older than the specified time reference.
static boolean	isOlder(java.lang.String file, long timeMillis)
static boolean	isOlder(java.lang.String file, java.lang.String reference)
static boolean	isSymlink(java.io.File file) Deprecated. Files.isSymbolicLink(java.nio.file.Path) provides this functionality natively as of Java 1.7.
static java.lang.String	md5(java.io.File file) Creates MD5 digest of a File.
static java.io.File	mkdir(java.io.File dir) Creates single directory.
static java.io.File	mkdir(java.lang.String dir)
static java.io.File	mkdirs(java.io.File dirs) Creates all directories at once.
static java.io.File	mkdirs(java.lang.String dirs)
static void	move(java.io.File src, java.io.File dest) Smart move.
static void	move(java.lang.String src, java.lang.String dest)
static java.io.File	moveDir(java.io.File srcDir, java.io.File destDir)
static java.io.File	moveDir(java.lang.String srcDir, java.lang.String destDir)
static java.io.File	moveFile(java.io.File srcFile, java.io.File destFile)
static java.io.File	moveFile(java.lang.String srcFile, java.lang.String destFile)
static java.io.File	moveFileToDir(java.io.File srcFile, java.io.File destDir) Moves a file to a directory.
static java.io.File	moveFileToDir(java.lang.String srcFile, java.lang.String destDir)
protected static void	outBytes(java.io.File dest, byte[] data, int off, int len, boolean append) Writes data to File destination.
protected static void	outChars(java.io.File dest, char[] data, java.nio.charset.Charset encoding, boolean append) Writes characters to File destination.
protected static void	outString(java.io.File dest, java.lang.String data, java.nio.charset.Charset encoding, boolean append) Writes data using encoding to File.
static byte[]	readBytes(java.io.File file)
static byte[]	readBytes(java.io.File file, int count) Read file and returns byte array with contents.
static byte[]	readBytes(java.lang.String file)
static char[]	readChars(java.io.File file)
static char[]	readChars(java.io.File file, java.nio.charset.Charset encoding) Reads file content as char array.
static char[]	readChars(java.lang.String fileName)
static char[]	readChars(java.lang.String fileName, java.nio.charset.Charset encoding)
static java.lang.String[]	readLines(java.io.File source)
static java.lang.String[]	readLines(java.io.File file, java.nio.charset.Charset encoding) Reads lines from source File with specified encoding and returns lines as Strings in array.
static java.lang.String[]	readLines(java.lang.String source)
static java.lang.String[]	readLines(java.lang.String source, java.nio.charset.Charset encoding)
static java.lang.String	readString(java.io.File source)
static java.lang.String	readString(java.io.File file, java.nio.charset.Charset encoding) Reads File content as String encoded in provided encoding.
static java.lang.String	readString(java.lang.String source)
static java.lang.String	readString(java.lang.String source, java.nio.charset.Charset encoding)
static char[]	readUTFChars(java.io.File file) Reads UTF file content as char array.
static char[]	readUTFChars(java.lang.String fileName)
static java.lang.String	readUTFString(java.io.File file) Detects optional BOM and reads UTF String from a File.
static java.lang.String	readUTFString(java.io.InputStream inputStream) Detects optional BOM and reads UTF String from an InputStream.
static java.lang.String	readUTFString(java.lang.String fileName)
static java.lang.String	sha256(java.io.File file) Creates SHA-256 digest of a file.
static java.lang.String	sha512(java.io.File file) Creates SHA-512 digest of a file.
static java.io.File	toContainerFile(java.net.URL url) Returns a file of either a folder or a containing archive.
static java.io.File	toFile(java.net.URL url) Converts File URLs to File.
static java.lang.String	toFileName(java.net.URL url) Converts File URLs to file name.
static void	touch(java.io.File file) Implements the Unix "touch" utility.
static void	touch(java.lang.String file)
static java.net.URL	toURL(java.io.File file) Converts File to URL in a correct way.
static void	writeBytes(java.io.File dest, byte[] data)
static void	writeBytes(java.io.File dest, byte[] data, int off, int len) Write bytes.
static void	writeBytes(java.lang.String dest, byte[] data)
static void	writeBytes(java.lang.String dest, byte[] data, int off, int len)
static void	writeChars(java.io.File dest, char[] data)
static void	writeChars(java.io.File dest, char[] data, java.nio.charset.Charset encoding) Write characters.
static void	writeChars(java.lang.String dest, char[] data)
static void	writeChars(java.lang.String dest, char[] data, java.nio.charset.Charset encoding)
static void	writeStream(java.io.File dest, java.io.InputStream in)
static void	writeStream(java.io.FileOutputStream out, java.io.InputStream in) Write InputStream in to FileOutputStream.
static void	writeStream(java.lang.String dest, java.io.InputStream in)
static void	writeString(java.io.File dest, java.lang.String data)
static void	writeString(java.io.File dest, java.lang.String data, java.nio.charset.Charset encoding) Writes String.
static void	writeString(java.lang.String dest, java.lang.String data)
static void	writeString(java.lang.String dest, java.lang.String data, java.nio.charset.Charset encoding)

Methods inherited from class java.lang.Object

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

Field Detail

tempFilePrefix

public static java.lang.String tempFilePrefix

Default prefix for temporary files.

Constructor Detail

FileUtil

public FileUtil()

Method Detail

file

public static java.io.File file(java.lang.String fileName)

Simple factory for File objects but with home resolving.

equals

public static boolean equals(java.lang.String one,
                             java.lang.String two)

See Also:

equals(File, File)

equals

public static boolean equals(java.io.File one,
                             java.io.File two)

Checks if two Files point to the same File.

Parameters:

one - File one.

two - File two.

Returns:

true if the Files match.

toFile

public static java.io.File toFile(java.net.URL url)

Converts File URLs to File. Ignores other schemes and returns null.

toURL

public static java.net.URL toURL(java.io.File file)
                          throws java.net.MalformedURLException

Converts File to URL in a correct way.

Returns:

URL or null in case of error.

Throws:

java.net.MalformedURLException - if File cannot be converted.

toFileName

public static java.lang.String toFileName(java.net.URL url)

Converts File URLs to file name. Accepts only URLs with 'file' protocol. Otherwise, for other schemes returns null.

Parameters:

url - URL to convert

Returns:

file name

toContainerFile

public static java.io.File toContainerFile(java.net.URL url)

Returns a file of either a folder or a containing archive.

isExistingFile

public static boolean isExistingFile(java.io.File file)

Returns true if File exists.

isExistingFolder

public static boolean isExistingFolder(java.io.File folder)

Returns true if directory exists.

mkdirs

public static java.io.File mkdirs(java.lang.String dirs)
                           throws java.io.IOException

Throws:

java.io.IOException

See Also:

mkdirs(File)

mkdirs

public static java.io.File mkdirs(java.io.File dirs)
                           throws java.io.IOException

Creates all directories at once.

Parameters:

dirs - Directories to make.

Throws:

java.io.IOException - if cannot create directory.

mkdir

public static java.io.File mkdir(java.lang.String dir)
                          throws java.io.IOException

Throws:

java.io.IOException

See Also:

mkdir(File)

mkdir

public static java.io.File mkdir(java.io.File dir)
                          throws java.io.IOException

Creates single directory.

Throws:

java.io.IOException - if cannot create directory.

touch

public static void touch(java.lang.String file)
                  throws java.io.IOException

Throws:

java.io.IOException

See Also:

touch(File)

touch

public static void touch(java.io.File file)
                  throws java.io.IOException

Implements the Unix "touch" utility. It creates a new File with size 0 or, if the File exists already, it is opened and closed without modifying it, but updating the File date and time.

Throws:

java.io.IOException

copyFile

public static void copyFile(java.lang.String srcFile,
                            java.lang.String destFile)
                     throws java.io.IOException

Throws:

java.io.IOException

See Also:

copyFile(File, File)

copyFile

public static void copyFile(java.io.File srcFile,
                            java.io.File destFile)
                     throws java.io.IOException

Copies a File to another File.

Parameters:

srcFile - Source File.

destFile - Destination File.

Throws:

java.io.IOException - if cannot copy

copyFileToDir

public static java.io.File copyFileToDir(java.lang.String srcFile,
                                         java.lang.String destDir)
                                  throws java.io.IOException

Throws:

java.io.IOException

See Also:

copyFileToDir(File, File)

copyFileToDir

public static java.io.File copyFileToDir(java.io.File srcFile,
                                         java.io.File destDir)
                                  throws java.io.IOException

Copies a File to directory with specified copy params and returns copied destination.

Throws:

java.io.IOException

copyDir

public static void copyDir(java.lang.String srcDir,
                           java.lang.String destDir)
                    throws java.io.IOException

Throws:

java.io.IOException

See Also:

copyDir(File, File)

copyDir

public static void copyDir(java.io.File srcDir,
                           java.io.File destDir)
                    throws java.io.IOException

Copies directory with specified copy params.

Throws:

java.io.IOException

See Also:

_copyDirectory(File, File)

moveFile

public static java.io.File moveFile(java.lang.String srcFile,
                                    java.lang.String destFile)
                             throws java.io.IOException

Throws:

java.io.IOException

See Also:

moveFile(File, File)

moveFile

public static java.io.File moveFile(java.io.File srcFile,
                                    java.io.File destFile)
                             throws java.io.IOException

Throws:

java.io.IOException

See Also:

_moveFile(File, File)

moveFileToDir

public static java.io.File moveFileToDir(java.lang.String srcFile,
                                         java.lang.String destDir)
                                  throws java.io.IOException

Throws:

java.io.IOException

See Also:

moveFileToDir(File, File)

moveFileToDir

public static java.io.File moveFileToDir(java.io.File srcFile,
                                         java.io.File destDir)
                                  throws java.io.IOException

Moves a file to a directory.

Parameters:

srcFile - Source File.

destDir - Destination directory.

Throws:

java.io.IOException - if there is an error during move.

moveDir

public static java.io.File moveDir(java.lang.String srcDir,
                                   java.lang.String destDir)
                            throws java.io.IOException

Throws:

java.io.IOException

See Also:

moveDir(File, File)

moveDir

public static java.io.File moveDir(java.io.File srcDir,
                                   java.io.File destDir)
                            throws java.io.IOException

Throws:

java.io.IOException

See Also:

_moveDirectory(File, File)

deleteFile

public static void deleteFile(java.lang.String destFile)
                       throws java.io.IOException

Throws:

java.io.IOException

See Also:

deleteFile(File)

deleteFile

public static void deleteFile(java.io.File destFile)
                       throws java.io.IOException

Deletes a File.

Parameters:

destFile - Destination to delete.

Throws:

java.io.IOException - if there was an error deleting.

deleteDir

public static void deleteDir(java.lang.String destDir)
                      throws java.io.IOException

Throws:

java.io.IOException

See Also:

deleteDir(File)

deleteDir

public static void deleteDir(java.io.File destDir)
                      throws java.io.IOException

Deletes a directory.

Parameters:

destDir - Destination to delete.

Throws:

java.io.IOException - if there was an error deleting.

cleanDir

public static void cleanDir(java.lang.String dest)
                     throws java.io.IOException

Throws:

java.io.IOException

See Also:

cleanDir(File)

cleanDir

public static void cleanDir(java.io.File destDir)
                     throws java.io.IOException

Cleans a directory without deleting it.

Parameters:

destDir - destination to clean.

Throws:

java.io.IOException - if something went wrong.

readUTFChars

public static char[] readUTFChars(java.lang.String fileName)
                           throws java.io.IOException

Throws:

java.io.IOException

See Also:

readUTFChars(File)

readUTFChars

public static char[] readUTFChars(java.io.File file)
                           throws java.io.IOException

Reads UTF file content as char array.

Parameters:

file - File to read.

Returns:

array of characters.

Throws:

java.io.IOException - if something went wrong.

readChars

public static char[] readChars(java.io.File file,
                               java.nio.charset.Charset encoding)
                        throws java.io.IOException

Reads file content as char array.

Parameters:

file - File to read.

encoding - Encoding to use.

Returns:

array of characters.

Throws:

java.io.IOException - if something went wrong.

readChars

public static char[] readChars(java.lang.String fileName)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

readChars(String, Charset)

readChars

public static char[] readChars(java.io.File file)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

readChars(File, Charset)

readChars

public static char[] readChars(java.lang.String fileName,
                               java.nio.charset.Charset encoding)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

readChars(File, Charset)

writeChars

public static void writeChars(java.io.File dest,
                              char[] data)
                       throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeChars(File, char[], Charset)

writeChars

public static void writeChars(java.lang.String dest,
                              char[] data)
                       throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeChars(File, char[])

writeChars

public static void writeChars(java.lang.String dest,
                              char[] data,
                              java.nio.charset.Charset encoding)
                       throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeChars(File, char[], Charset)

writeChars

public static void writeChars(java.io.File dest,
                              char[] data,
                              java.nio.charset.Charset encoding)
                       throws java.io.IOException

Write characters. append = false

Throws:

java.io.IOException

See Also:

outChars(File, char[], Charset, boolean)

outChars

protected static void outChars(java.io.File dest,
                               char[] data,
                               java.nio.charset.Charset encoding,
                               boolean append)
                        throws java.io.IOException

Writes characters to File destination.

Parameters:

dest - destination File

data - Data as a String

encoding - Encoding as a String

append - true if appending; false if File should be overwritten.

Throws:

java.io.IOException - if something went wrong.

readUTFString

public static java.lang.String readUTFString(java.lang.String fileName)
                                      throws java.io.IOException

Throws:

java.io.IOException

See Also:

readUTFString(File)

readUTFString

public static java.lang.String readUTFString(java.io.File file)
                                      throws java.io.IOException

Detects optional BOM and reads UTF String from a File. If BOM is missing, UTF-8 is assumed.

Parameters:

file - File to read.

Returns:

String in UTF encoding.

Throws:

java.io.IOException - if copy to InputStream errors.

See Also:

unicodeInputStreamOf(File), IOUtil.copy(InputStream, Charset)

readUTFString

public static java.lang.String readUTFString(java.io.InputStream inputStream)
                                      throws java.io.IOException

Detects optional BOM and reads UTF String from an InputStream. If BOM is missing, UTF-8 is assumed.

Parameters:

inputStream - InputStream to read.

Returns:

String in UTF encoding.

Throws:

java.io.IOException - if copy to InputStream errors.

See Also:

unicodeInputStreamOf(File), IOUtil.copy(InputStream, Charset)

readString

public static java.lang.String readString(java.io.File file,
                                          java.nio.charset.Charset encoding)
                                   throws java.io.IOException

Reads File content as String encoded in provided encoding. For UTF encoded files, detects optional BOM characters.

Parameters:

file - File to read.

encoding - Encoding to use.

Returns:

String representing File content.

Throws:

java.io.IOException - if copy to InputStream errors.

See Also:

streamOf(File, Charset), IOUtil.copy(InputStream, Charset)

readString

public static java.lang.String readString(java.lang.String source)
                                   throws java.io.IOException

Throws:

java.io.IOException

See Also:

readString(String, Charset)

readString

public static java.lang.String readString(java.lang.String source,
                                          java.nio.charset.Charset encoding)
                                   throws java.io.IOException

Throws:

java.io.IOException

See Also:

readString(File, Charset)

readString

public static java.lang.String readString(java.io.File source)
                                   throws java.io.IOException

Throws:

java.io.IOException

See Also:

readString(File, Charset)

writeString

public static void writeString(java.lang.String dest,
                               java.lang.String data)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeString(File, String, Charset)

writeString

public static void writeString(java.lang.String dest,
                               java.lang.String data,
                               java.nio.charset.Charset encoding)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeString(File, String, Charset)

writeString

public static void writeString(java.io.File dest,
                               java.lang.String data)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeString(File, String, Charset)

writeString

public static void writeString(java.io.File dest,
                               java.lang.String data,
                               java.nio.charset.Charset encoding)
                        throws java.io.IOException

Writes String. append = false

Throws:

java.io.IOException

See Also:

outString(File, String, Charset, boolean)

appendString

public static void appendString(java.lang.String dest,
                                java.lang.String data)
                         throws java.io.IOException

Throws:

java.io.IOException

See Also:

appendString(File, String)

appendString

public static void appendString(java.lang.String dest,
                                java.lang.String data,
                                java.nio.charset.Charset encoding)
                         throws java.io.IOException

Throws:

java.io.IOException

See Also:

appendString(File, String, Charset)

appendString

public static void appendString(java.io.File dest,
                                java.lang.String data)
                         throws java.io.IOException

Throws:

java.io.IOException

See Also:

appendString(File, String, Charset)

appendString

public static void appendString(java.io.File dest,
                                java.lang.String data,
                                java.nio.charset.Charset encoding)
                         throws java.io.IOException

Appends String. append = true

Throws:

java.io.IOException

See Also:

outString(File, String, Charset, boolean)

outString

protected static void outString(java.io.File dest,
                                java.lang.String data,
                                java.nio.charset.Charset encoding,
                                boolean append)
                         throws java.io.IOException

Writes data using encoding to File.

Parameters:

dest - destination File

data - Data as a String

encoding - Encoding as a String

append - true if appending; false if File should be overwritten.

Throws:

java.io.IOException - if something went wrong.

writeStream

public static void writeStream(java.lang.String dest,
                               java.io.InputStream in)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeStream(File, InputStream)

writeStream

public static void writeStream(java.io.File dest,
                               java.io.InputStream in)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeStream(FileOutputStream, InputStream)

writeStream

public static void writeStream(java.io.FileOutputStream out,
                               java.io.InputStream in)
                        throws java.io.IOException

Write InputStream in to FileOutputStream.

Parameters:

out - FileOutputStream to write to.

in - InputStream to read.

Throws:

java.io.IOException - if there is an issue reading/writing.

readLines

public static java.lang.String[] readLines(java.lang.String source)
                                    throws java.io.IOException

Throws:

java.io.IOException

See Also:

readLines(String, Charset)

readLines

public static java.lang.String[] readLines(java.lang.String source,
                                           java.nio.charset.Charset encoding)
                                    throws java.io.IOException

Throws:

java.io.IOException

See Also:

readLines(File, Charset)

readLines

public static java.lang.String[] readLines(java.io.File source)
                                    throws java.io.IOException

Throws:

java.io.IOException

See Also:

readLines(File, Charset)

readLines

public static java.lang.String[] readLines(java.io.File file,
                                           java.nio.charset.Charset encoding)
                                    throws java.io.IOException

Reads lines from source File with specified encoding and returns lines as Strings in array.

Parameters:

file - File to read.

encoding - Endoing to use.

Returns:

array of Strings which represents lines in the File.

Throws:

java.io.IOException - if File does not exist or is not a File or there is an issue reading the File.

readBytes

public static byte[] readBytes(java.lang.String file)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

readBytes(File)

readBytes

public static byte[] readBytes(java.io.File file)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

readBytes(File, int)

readBytes

public static byte[] readBytes(java.io.File file,
                               int count)
                        throws java.io.IOException

Read file and returns byte array with contents.

Parameters:

file - File to read

count - number of bytes to read

Returns:

byte array from File contents.

Throws:

java.io.IOException - if not a File or File does not exist or file size is larger than Integer.MAX_VALUE.

writeBytes

public static void writeBytes(java.lang.String dest,
                              byte[] data)
                       throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeBytes(File, byte[])

writeBytes

public static void writeBytes(java.io.File dest,
                              byte[] data)
                       throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeBytes(File, byte[], int, int)

writeBytes

public static void writeBytes(java.lang.String dest,
                              byte[] data,
                              int off,
                              int len)
                       throws java.io.IOException

Throws:

java.io.IOException

See Also:

writeBytes(File, byte[], int, int)

writeBytes

public static void writeBytes(java.io.File dest,
                              byte[] data,
                              int off,
                              int len)
                       throws java.io.IOException

Write bytes. append = false

Throws:

java.io.IOException

See Also:

outBytes(File, byte[], int, int, boolean)

appendBytes

public static void appendBytes(java.lang.String dest,
                               byte[] data)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

appendBytes(File, byte[])

appendBytes

public static void appendBytes(java.lang.String dest,
                               byte[] data,
                               int off,
                               int len)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

appendBytes(File, byte[], int, int)

appendBytes

public static void appendBytes(java.io.File dest,
                               byte[] data)
                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

appendBytes(File, byte[], int, int)

appendBytes

public static void appendBytes(java.io.File dest,
                               byte[] data,
                               int off,
                               int len)
                        throws java.io.IOException

Appends bytes. append = true

Throws:

java.io.IOException

See Also:

outBytes(File, byte[], int, int, boolean)

outBytes

protected static void outBytes(java.io.File dest,
                               byte[] data,
                               int off,
                               int len,
                               boolean append)
                        throws java.io.IOException

Writes data to File destination.

Parameters:

dest - destination File

data - Data as a String

off - the start offset in the data.

len - the number of bytes to write.

append - true if appending; false if File should be overwritten.

Throws:

java.io.IOException - if something went wrong.

compare

public static boolean compare(java.lang.String file1,
                              java.lang.String file2)
                       throws java.io.IOException

Throws:

java.io.IOException

compare

public static boolean compare(java.io.File one,
                              java.io.File two)
                       throws java.io.IOException

Compare the contents of two Files to determine if they are equal or not.

This method checks to see if the two Files are different lengths or if they point to the same File, before resorting to byte-by-byte comparison of the contents.

Code origin: Avalon

Throws:

java.io.IOException

isOlder

public static boolean isOlder(java.lang.String file,
                              java.lang.String reference)

See Also:

isOlder(File, File)

isNewer

public static boolean isNewer(java.lang.String file,
                              java.lang.String reference)

See Also:

isNewer(File, File)

isNewer

public static boolean isNewer(java.io.File file,
                              java.io.File reference)

Uses File.lastModified() for reference.

See Also:

isNewer(File, long)

isOlder

public static boolean isOlder(java.io.File file,
                              java.io.File reference)

Uses File.lastModified() for reference.

See Also:

isOlder(File, long)

isNewer

public static boolean isNewer(java.io.File file,
                              long timeMillis)

Tests if the specified File is newer than the specified time reference.

Parameters:

file - the File of which the modification date must be compared.

timeMillis - the time reference measured in milliseconds since the epoch (00:00:00 GMT, January 1, 1970)

Returns:

true if the File exists and has been modified after the given time reference.

isNewer

public static boolean isNewer(java.lang.String file,
                              long timeMillis)

See Also:

isNewer(File, long)

isOlder

public static boolean isOlder(java.io.File file,
                              long timeMillis)

Tests if the specified File is older than the specified time reference.

Parameters:

file - the File of which the modification date must be compared.

timeMillis - the time reference measured in milliseconds since the epoch (00:00:00 GMT, January 1, 1970)

Returns:

true if the File exists and has been modified after the given time reference.

isOlder

public static boolean isOlder(java.lang.String file,
                              long timeMillis)

See Also:

isOlder(File, long)

copy

public static void copy(java.lang.String src,
                        java.lang.String dest)
                 throws java.io.IOException

Throws:

java.io.IOException

See Also:

copy(File, File)

copy

public static void copy(java.io.File src,
                        java.io.File dest)
                 throws java.io.IOException

Smart copy. If source is a directory, copy it to destination. Otherwise, if destination is directory, copy source file to it. Otherwise, try to copy source file to destination file.

Parameters:

src - source File

dest - destination File

Throws:

java.io.IOException - if there is an error copying.

See Also:

copyDir(File, File), copyFileToDir(File, File), copyFile(File, File)

move

public static void move(java.lang.String src,
                        java.lang.String dest)
                 throws java.io.IOException

Throws:

java.io.IOException

See Also:

move(File, File)

move

public static void move(java.io.File src,
                        java.io.File dest)
                 throws java.io.IOException

Smart move. If source is a directory, move it to destination. Otherwise, if destination is directory, move source File to it. Otherwise, try to move source File to destination File.

Parameters:

src - source File

dest - destination File

Throws:

java.io.IOException - if there is an error moving.

See Also:

moveDir(File, File), moveFileToDir(File, File), moveFile(File, File)

delete

public static void delete(java.lang.String dest)
                   throws java.io.IOException

Throws:

java.io.IOException

See Also:

delete(File)

delete

public static void delete(java.io.File dest)
                   throws java.io.IOException

Smart delete of destination file or directory.

Throws:

java.io.IOException - if there is an issue deleting the file/directory.

See Also:

deleteFile(File), deleteDir(File)

isAncestor

public static boolean isAncestor(java.io.File ancestor,
                                 java.io.File file,
                                 boolean strict)

Check if one File is an ancestor of second one.

Parameters:

strict - if c then this method returns true if ancestor and File are equal

Returns:

true if ancestor is parent of File; otherwise, false

getParentFile

public static java.io.File getParentFile(java.io.File file)

Returns parent for the file. The method correctly processes "." and ".." in File names. The name remains relative if was relative before. Returns null if the File has no parent.

Parameters:

file - File

Returns:

null if the File has no parent.

isFilePathAcceptable

public static boolean isFilePathAcceptable(java.io.File file,
                                           java.io.FileFilter fileFilter)

Checks if file and its ancestors are acceptable by using FileFilter.accept(File).

Parameters:

file - File to check.

fileFilter - FileFilter to use.

Returns:

if file and its ancestors are acceptable

createTempDirectory

public static java.io.File createTempDirectory()
                                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

createTempDirectory(String, String)

createTempDirectory

public static java.io.File createTempDirectory(java.lang.String prefix,
                                               java.lang.String suffix)
                                        throws java.io.IOException

Throws:

java.io.IOException

See Also:

createTempDirectory(String, String, File)

createTempDirectory

public static java.io.File createTempDirectory(java.lang.String prefix,
                                               java.lang.String suffix,
                                               java.io.File tempDir)
                                        throws java.io.IOException

Creates temporary directory.

Throws:

java.io.IOException

See Also:

createTempFile(String, String, File)

createTempFile

public static java.io.File createTempFile()
                                   throws java.io.IOException

Throws:

java.io.IOException

See Also:

createTempFile(String, String, File, boolean)

createTempFile

public static java.io.File createTempFile(java.lang.String prefix,
                                          java.lang.String suffix,
                                          java.io.File tempDir,
                                          boolean create)
                                   throws java.io.IOException

Creates temporary File.

Parameters:

prefix - The prefix string to be used in generating the file's name; must be at least three characters long

suffix - The suffix string to be used in generating the file's name; may be null, in which case the suffix ".tmp" will be used

tempDir - The directory in which the file is to be created, or null if the default temporary-file directory is to be used

create - If create is set to true File will be physically created on the file system. Otherwise, it will be created and then deleted - trick that will make temp File exist only if they are used.

Returns:

File

Throws:

java.io.IOException

createTempFile

public static java.io.File createTempFile(java.lang.String prefix,
                                          java.lang.String suffix,
                                          java.io.File tempDir)
                                   throws java.io.IOException

Creates temporary File. Wraps Java method and repeats creation several times if something fails.

Parameters:

prefix - The prefix string to be used in generating the file's name; must be at least three characters long

suffix - The suffix string to be used in generating the file's name; may be null, in which case the suffix ".tmp" will be used

tempDir - The directory in which the file is to be created, or null if the default temporary-file directory is to be used

Throws:

java.io.IOException

isSymlink

@Deprecated
public static boolean isSymlink(java.io.File file)

Deprecated. Files.isSymbolicLink(java.nio.file.Path) provides this functionality natively as of Java 1.7.

Determines whether the specified file is a symbolic link rather than an actual file.

md5

public static java.lang.String md5(java.io.File file)
                            throws java.io.IOException

Creates MD5 digest of a File.

Parameters:

file - File to create digest of.

Returns:

MD5 digest of the File.

Throws:

java.io.IOException

sha256

public static java.lang.String sha256(java.io.File file)
                               throws java.io.IOException

Creates SHA-256 digest of a file.

Parameters:

file - File to create digest of.

Returns:

SHA-256 digest of the File.

Throws:

java.io.IOException

sha512

public static java.lang.String sha512(java.io.File file)
                               throws java.io.IOException

Creates SHA-512 digest of a file.

Parameters:

file - File to create digest of.

Returns:

SHA-512 digest of the File.

Throws:

java.io.IOException

isBinary

public static boolean isBinary(java.io.File file)
                        throws java.io.IOException

Checks the start of the file for ASCII control characters

Parameters:

file - File

Returns:

true if the the start of the File is ASCII control characters.

Throws:

java.io.IOException