Class IO

java.lang.Object

aQute.lib.io.IO

public class IO
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
static final File	home
static final File	JAVA_HOME
static final OutputStream	nullStream
static final Writer	nullWriter
static final File	work

Constructor Summary

Constructors

Constructor	Description
IO()

Method Summary

Modifier and Type	Method	Description
static String	absolutePath(File file)
static String	absolutePath(Path path)
static Writer	appendableToWriter(Appendable appendable)
static Throwable	close(Closeable in)
static Throwable	close(AutoCloseable in)
static boolean	closeAll(Object... toBeClosed)	Will iterate over the given toBeClose and silently close any object that implements AutoCloseable.
static String	collect(File file)
static String	collect(File file, String encoding)
static String	collect(File file, Charset encoding)
static String	collect(InputStream in)
static String	collect(InputStream in, String encoding)
static String	collect(InputStream in, Charset encoding)
static String	collect(Reader r)
static String	collect(String path)
static String	collect(URL url)
static String	collect(URL url, String encoding)
static String	collect(URL url, Charset encoding)
static String	collect(ByteBuffer bb, Charset encoding)
static String	collect(Path path)
static String	collect(Path path, Charset encoding)
static File	copy(byte[] data, File file)
static OutputStream	copy(byte[] data, OutputStream out)
static Writer	copy(byte[] data, Writer w)
static Path	copy(byte[] data, Path path)
static File	copy(File src, File tgt)
static OutputStream	copy(File file, OutputStream out)
static MessageDigest	copy(File file, MessageDigest md)
static byte[]	copy(InputStream in, byte[] data)
static byte[]	copy(InputStream in, byte[] data, int off, int len)
static ByteBufferOutputStream	copy(InputStream in, ByteBufferOutputStream out)
static DataOutput	copy(InputStream in, DataOutput out)
static File	copy(InputStream in, File file)
static OutputStream	copy(InputStream in, OutputStream out)
static OutputStream	copy(InputStream in, OutputStream out, int limit)
static Writer	copy(InputStream in, Writer w)
static Writer	copy(InputStream in, Writer w, String charset)
static Writer	copy(InputStream in, Writer w, Charset charset)
static URL	copy(InputStream in, URL url)
static URL	copy(InputStream in, URL url, String method)
static ByteBuffer	copy(InputStream in, ByteBuffer bb)
static WritableByteChannel	copy(InputStream in, WritableByteChannel out)
static Path	copy(InputStream in, Path path)
static MessageDigest	copy(InputStream in, MessageDigest md)
static OutputStream	copy(Reader r, OutputStream out)
static OutputStream	copy(Reader r, OutputStream out, String charset)
static OutputStream	copy(Reader r, OutputStream out, Charset charset)
static Writer	copy(Reader r, Writer w)
static File	copy(URLConnection conn, File file)
static MessageDigest	copy(URLConnection conn, MessageDigest md)
static File	copy(URL url, File file)
static MessageDigest	copy(URL url, MessageDigest md)
static DataOutput	copy(ByteBuffer bb, DataOutput out)
static OutputStream	copy(ByteBuffer bb, OutputStream out)
static OutputStream	copy(ReadableByteChannel in, OutputStream out)
static WritableByteChannel	copy(ReadableByteChannel in, WritableByteChannel out)
static MessageDigest	copy(ReadableByteChannel in, MessageDigest md)
static OutputStream	copy(Path path, OutputStream out)
static Path	copy(Path src, Path tgt)
static MessageDigest	copy(Path path, MessageDigest md)
static OutputStream	copy(Collection<?> c, OutputStream out)
static boolean	createSymbolicLink(File link, File target)
static boolean	createSymbolicLink(Path link, Path target)
static boolean	createSymbolicLinkOrCopy(File link, File target)	Creates a symbolic link from link to the target, or copies target to link if running on Windows.
static boolean	createSymbolicLinkOrCopy(Path link, Path target)	Creates a symbolic link from link to the target, or copies target to link if running on Windows.
static File	createTempFile(File directory, String pattern, String suffix)	Create a temporary file.
static CharBuffer	decode(ByteBuffer bb, Charset encoding)
static void	delete(File file)	Deletes the specified file.
static void	delete(Path path)	Deletes the specified path.
static void	deleteContent(File dir)	Deletes the specified content of the given directory.
static void	deleteWithException(File file)	Deletes the specified file.
static void	deleteWithException(Path path)	Deletes the specified path.
static long	drain(InputStream in)
static ByteBuffer	encode(String s, Charset encoding)
static ByteBuffer	encode(CharBuffer cb, Charset encoding)
static Collator	fileCollator()
static <FILE> Comparator<FILE>	fileComparator(Function<? super FILE, ? extends String> keyExtractor)
static File	getBasedFile(File base, String file)
static Path	getBasedPath(Path base, String file)
static String	getExtension(String fileName, String deflt)
static File	getFile(File base, String file)
static File	getFile(String file)
static String	getJavaExecutablePath(String name)
static Path	getPath(String file)
static Path	getPath(Path base, String file)
static void	initialize(File dir)	Deletes and creates directories
static boolean	isSymbolicLink(File link)
static boolean	isSymbolicLink(Path link)
static boolean	isWindows()
static List<String>	list(File dir)
static List<String>	list(File dir, BiPredicate<? super File, ? super String> filter)
static List<String>	list(Path dir)
static List<String>	list(Path dir, BiPredicate<? super Path, ? super String> filter)
static List<String>	list(Path dir, Predicate<? super Path> filter)
static List<File>	listFiles(File dir)
static List<File>	listFiles(File dir, BiPredicate<? super File, ? super String> filter)
static List<Path>	listPaths(Path dir)
static List<Path>	listPaths(Path dir, BiPredicate<? super Path, ? super String> filter)
static List<Path>	listPaths(Path dir, Predicate<? super Path> filter)
static Stream<String>	listStream(File dir)
static Stream<String>	listStream(File dir, BiPredicate<? super File, ? super String> filter)
static Stream<String>	listStream(Path dir)
static Stream<String>	listStream(Path dir, BiPredicate<? super Path, ? super String> filter)
static Stream<String>	listStream(Path dir, Predicate<? super Path> filter)
static File	mkdirs(File dir)
static Path	mkdirs(Path dir)
static String	normalizePath(File file)
static String	normalizePath(String path)
static String	normalizePath(Path path)
static OutputStream	outputStream(File file)
static OutputStream	outputStream(Path path)
static byte[]	read(File file)
static byte[]	read(InputStream in)
static byte[]	read(URL url)
static byte[]	read(ByteBuffer bb)
static ByteBuffer	read(Path path)
static FileChannel	readChannel(Path path)
static BufferedReader	reader(File file)
static BufferedReader	reader(File file, String encoding)
static BufferedReader	reader(File file, Charset encoding)
static BufferedReader	reader(InputStream in)
static BufferedReader	reader(InputStream in, String encoding)
static BufferedReader	reader(InputStream in, Charset encoding)
static BufferedReader	reader(String s)
static BufferedReader	reader(ByteBuffer bb, Charset encoding)
static BufferedReader	reader(ReadableByteChannel in, Charset encoding)
static BufferedReader	reader(CharBuffer cb)
static BufferedReader	reader(Path path, Charset encoding)
static String	readUTF(DataInput in)
static File	rename(File from, File to)	Renames from to to replacing the target file if necessary.
static Path	rename(Path from, Path to)	Renames from to to replacing the target file if necessary.
static void	store(ConsumerWithException<OutputStream> store, File target)	Store output in a file but ensure that the content is updated atomically.
static void	store(Object o, File file)
static void	store(Object o, File file, String encoding)
static void	store(Object o, OutputStream out)
static void	store(Object o, OutputStream out, String encoding)
static void	store(Object o, OutputStream out, Charset encoding)
static void	store(Object o, Writer w)
static void	store(Object o, Path path, Charset encoding)
static InputStream	stream(byte[] data)
static InputStream	stream(File file)
static InputStream	stream(String s)
static InputStream	stream(String s, String encoding)
static InputStream	stream(String s, Charset encoding)
static InputStream	stream(URL url)
static InputStream	stream(ByteBuffer bb)
static InputStream	stream(Path path)
static String	toSafeFileName(String string)
static URL	toURL(String s, File base)
static Collection<File>	tree(File current)
static Collection<File>	tree(File current, String glob)
static void	write(byte[] data, File file)
static void	write(byte[] data, OutputStream out)
static FileChannel	writeChannel(Path path)
static PrintWriter	writer(File file)
static PrintWriter	writer(File file, String encoding)
static PrintWriter	writer(File file, Charset encoding)
static PrintWriter	writer(OutputStream out)
static PrintWriter	writer(OutputStream out, String encoding)
static PrintWriter	writer(OutputStream out, Charset encoding)
static PrintWriter	writer(WritableByteChannel out, Charset encoding)
static PrintWriter	writer(Path path)
static PrintWriter	writer(Path path, Charset encoding)

Methods inherited from class Object

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

Field Details

work

public static final File work

home

public static final File home

JAVA_HOME

public static final File JAVA_HOME

nullStream

public static final OutputStream nullStream

nullWriter

public static final Writer nullWriter

Constructor Details

IO

public IO()

Method Details

getExtension

public static String getExtension(String fileName,
 String deflt)

tree

public static Collection<File> tree(File current)

tree

public static Collection<File> tree(File current,
 String glob)

fileCollator

public static Collator fileCollator()

fileComparator

public static <FILE> Comparator<FILE> fileComparator(Function<? super FILE, ? extends String> keyExtractor)

listStream

public static Stream<String> listStream(File dir,
 BiPredicate<? super File, ? super String> filter)

listStream

public static Stream<String> listStream(File dir)

list

public static List<String> list(File dir,
 BiPredicate<? super File, ? super String> filter)

list

public static List<String> list(File dir)

listFiles

public static List<File> listFiles(File dir,
 BiPredicate<? super File, ? super String> filter)

listFiles

public static List<File> listFiles(File dir)

listStream

public static Stream<String> listStream(Path dir,
 Predicate<? super Path> filter)

listStream

public static Stream<String> listStream(Path dir,
 BiPredicate<? super Path, ? super String> filter)

listStream

public static Stream<String> listStream(Path dir)

list

public static List<String> list(Path dir,
 Predicate<? super Path> filter)

list

public static List<String> list(Path dir,
 BiPredicate<? super Path, ? super String> filter)

list

public static List<String> list(Path dir)

listPaths

public static List<Path> listPaths(Path dir,
 Predicate<? super Path> filter)

listPaths

public static List<Path> listPaths(Path dir,
 BiPredicate<? super Path, ? super String> filter)

listPaths

public static List<Path> listPaths(Path dir)

copy

public static File copy(byte[] data,
 File file)
                 throws IOException

Throws:

IOException

copy

public static Path copy(byte[] data,
 Path path)
                 throws IOException

Throws:

IOException

copy

public static Writer copy(byte[] data,
 Writer w)
                   throws IOException

Throws:

IOException

copy

public static OutputStream copy(byte[] data,
 OutputStream out)
                         throws IOException

Throws:

IOException

copy

public static Writer copy(Reader r,
 Writer w)
                   throws IOException

Throws:

IOException

copy

public static OutputStream copy(Reader r,
 OutputStream out)
                         throws IOException

Throws:

IOException

copy

public static OutputStream copy(Reader r,
 OutputStream out,
 String charset)
                         throws IOException

Throws:

IOException

copy

public static OutputStream copy(Reader r,
 OutputStream out,
 Charset charset)
                         throws IOException

Throws:

IOException

copy

public static Writer copy(InputStream in,
 Writer w)
                   throws IOException

Throws:

IOException

copy

public static Writer copy(InputStream in,
 Writer w,
 String charset)
                   throws IOException

Throws:

IOException

copy

public static Writer copy(InputStream in,
 Writer w,
 Charset charset)
                   throws IOException

Throws:

IOException

copy

public static OutputStream copy(InputStream in,
 OutputStream out)
                         throws IOException

Throws:

IOException

copy

public static OutputStream copy(InputStream in,
 OutputStream out,
 int limit)
                         throws IOException

Throws:

IOException

copy

public static ByteBufferOutputStream copy(InputStream in,
 ByteBufferOutputStream out)
                                   throws IOException

Throws:

IOException

copy

public static DataOutput copy(InputStream in,
 DataOutput out)
                       throws IOException

Throws:

IOException

copy

public static WritableByteChannel copy(ReadableByteChannel in,
 WritableByteChannel out)
                                throws IOException

Throws:

IOException

copy

public static ByteBuffer copy(InputStream in,
 ByteBuffer bb)
                       throws IOException

Throws:

IOException

copy

public static byte[] copy(InputStream in,
 byte[] data)
                   throws IOException

Throws:

IOException

copy

public static byte[] copy(InputStream in,
 byte[] data,
 int off,
 int len)
                   throws IOException

Throws:

IOException

copy

public static OutputStream copy(ByteBuffer bb,
 OutputStream out)
                         throws IOException

Throws:

IOException

copy

public static DataOutput copy(ByteBuffer bb,
 DataOutput out)
                       throws IOException

Throws:

IOException

copy

public static MessageDigest copy(URL url,
 MessageDigest md)
                          throws IOException

Throws:

IOException

copy

public static MessageDigest copy(File file,
 MessageDigest md)
                          throws IOException

Throws:

IOException

copy

public static MessageDigest copy(Path path,
 MessageDigest md)
                          throws IOException

Throws:

IOException

copy

public static MessageDigest copy(URLConnection conn,
 MessageDigest md)
                          throws IOException

Throws:

IOException

copy

public static MessageDigest copy(InputStream in,
 MessageDigest md)
                          throws IOException

Throws:

IOException

copy

public static MessageDigest copy(ReadableByteChannel in,
 MessageDigest md)
                          throws IOException

Throws:

IOException

copy

public static File copy(URL url,
 File file)
                 throws IOException

Throws:

IOException

copy

public static File copy(URLConnection conn,
 File file)
                 throws IOException

Throws:

IOException

copy

public static URL copy(InputStream in,
 URL url)
                throws IOException

Throws:

IOException

copy

public static URL copy(InputStream in,
 URL url,
 String method)
                throws IOException

Throws:

IOException

copy

public static File copy(File src,
 File tgt)
                 throws IOException

Throws:

IOException

copy

public static Path copy(Path src,
 Path tgt)
                 throws IOException

Throws:

IOException

copy

public static File copy(InputStream in,
 File file)
                 throws IOException

Throws:

IOException

copy

public static Path copy(InputStream in,
 Path path)
                 throws IOException

Throws:

IOException

copy

public static OutputStream copy(File file,
 OutputStream out)
                         throws IOException

Throws:

IOException

copy

public static OutputStream copy(Path path,
 OutputStream out)
                         throws IOException

Throws:

IOException

copy

public static WritableByteChannel copy(InputStream in,
 WritableByteChannel out)
                                throws IOException

Throws:

IOException

copy

public static OutputStream copy(ReadableByteChannel in,
 OutputStream out)
                         throws IOException

Throws:

IOException

read

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

Throws:

IOException

read

public static ByteBuffer read(Path path)
                       throws IOException

Throws:

IOException

read

public static byte[] read(ByteBuffer bb)

read

public static byte[] read(URL url)
                   throws IOException

Throws:

IOException

read

public static byte[] read(InputStream in)
                   throws IOException

Throws:

IOException

write

public static void write(byte[] data,
 OutputStream out)
                  throws IOException

Throws:

IOException

write

public static void write(byte[] data,
 File file)
                  throws IOException

Throws:

IOException

collect

public static String collect(File file)
                      throws IOException

Throws:

IOException

collect

public static String collect(File file,
 String encoding)
                      throws IOException

Throws:

IOException

collect

public static String collect(File file,
 Charset encoding)
                      throws IOException

Throws:

IOException

collect

public static String collect(Path path)
                      throws IOException

Throws:

IOException

collect

public static String collect(Path path,
 Charset encoding)
                      throws IOException

Throws:

IOException

collect

public static String collect(ByteBuffer bb,
 Charset encoding)

collect

public static String collect(URL url,
 String encoding)
                      throws IOException

Throws:

IOException

collect

public static String collect(URL url,
 Charset encoding)
                      throws IOException

Throws:

IOException

collect

public static String collect(URL url)
                      throws IOException

Throws:

IOException

collect

public static String collect(String path)
                      throws IOException

Throws:

IOException

collect

public static String collect(InputStream in)
                      throws IOException

Throws:

IOException

collect

public static String collect(InputStream in,
 String encoding)
                      throws IOException

Throws:

IOException

collect

public static String collect(InputStream in,
 Charset encoding)
                      throws IOException

Throws:

IOException

collect

public static String collect(Reader r)
                      throws IOException

Throws:

IOException

createTempFile

public static File createTempFile(File directory,
 String pattern,
 String suffix)
                           throws IllegalArgumentException,
IOException

Create a temporary file.

Parameters:

directory - the directory in which to create the file. Can be null, in which case the system TMP directory is used

pattern - the filename prefix pattern. Must be at least 3 characters long

suffix - the filename suffix. Can be null, in which case (system) default suffix is used

Returns:

temp file

Throws:

IllegalArgumentException - when pattern is null or too short

IOException - when the specified (non-null) directory is not a directory

absolutePath

public static String absolutePath(File file)

absolutePath

public static String absolutePath(Path path)

normalizePath

public static String normalizePath(Path path)

normalizePath

public static String normalizePath(File file)

normalizePath

public static String normalizePath(String path)

getFile

public static File getFile(String file)

getFile

public static File getFile(File base,
 String file)

getBasedFile

public static File getBasedFile(File base,
 String file)
                         throws IOException

Throws:

IOException

getPath

public static Path getPath(String file)

getPath

public static Path getPath(Path base,
 String file)

getBasedPath

public static Path getBasedPath(Path base,
 String file)
                         throws IOException

Throws:

IOException

delete

public static void delete(File file)

Deletes the specified file. Folders are recursively deleted.
If file(s) cannot be deleted, no feedback is provided (fail silently).

Parameters:

file - file to be deleted

deleteContent

public static void deleteContent(File dir)

Deletes the specified content of the given directory. Folders are recursively deleted. This method will not delete the given dir, this can be useful in Eclipse or other systems that detect delete-create
If file(s) cannot be deleted, no feedback is provided (fail silently).

Parameters:

dir - of whose contents are to be deleted

delete

public static void delete(Path path)

Deletes the specified path. Folders are recursively deleted.
If file(s) cannot be deleted, no feedback is provided (fail silently).

Parameters:

path - path to be deleted

initialize

public static void initialize(File dir)

Deletes and creates directories

deleteWithException

public static void deleteWithException(File file)
                                throws IOException

Deletes the specified file. Folders are recursively deleted.
Throws exception if any of the files could not be deleted.

Parameters:

file - file to be deleted

Throws:

IOException - if the file (or contents of a folder) could not be deleted

deleteWithException

public static void deleteWithException(Path path)
                                throws IOException

Deletes the specified path. Folders are recursively deleted.
Throws exception if any of the files could not be deleted.

Parameters:

path - path to be deleted

Throws:

IOException - if the path (or contents of a folder) could not be deleted

rename

public static File rename(File from,
 File to)
                   throws IOException

Renames from to to replacing the target file if necessary.

Parameters:

from - source file

to - destination file

Throws:

IOException - if the rename operation fails

rename

public static Path rename(Path from,
 Path to)
                   throws IOException

Renames from to to replacing the target file if necessary.

Parameters:

from - source path

to - destination path

Throws:

IOException - if the rename operation fails

mkdirs

public static File mkdirs(File dir)
                   throws IOException

Throws:

IOException

mkdirs

public static Path mkdirs(Path dir)
                   throws IOException

Throws:

IOException

drain

public static long drain(InputStream in)
                  throws IOException

Throws:

IOException

copy

public static OutputStream copy(Collection<?> c,
 OutputStream out)
                         throws IOException

Throws:

IOException

close

public static Throwable close(AutoCloseable in)

close

public static Throwable close(Closeable in)

closeAll

public static boolean closeAll(Object... toBeClosed)

Will iterate over the given toBeClose and silently close any object that implements AutoCloseable.

Parameters:

toBeClosed - any iterable

Returns:

true if an exception was thrown during closing

toURL

public static URL toURL(String s,
 File base)
                 throws MalformedURLException

Throws:

MalformedURLException

store

public static void store(Object o,
 File file)
                  throws IOException

Throws:

IOException

store

public static void store(Object o,
 File file,
 String encoding)
                  throws IOException

Throws:

IOException

store

public static void store(Object o,
 Path path,
 Charset encoding)
                  throws IOException

Throws:

IOException

store

public static void store(Object o,
 OutputStream out)
                  throws IOException

Throws:

IOException

store

public static void store(Object o,
 OutputStream out,
 String encoding)
                  throws IOException

Throws:

IOException

store

public static void store(Object o,
 OutputStream out,
 Charset encoding)
                  throws IOException

Throws:

IOException

store

public static void store(Object o,
 Writer w)
                  throws IOException

Throws:

IOException

store

public static void store(ConsumerWithException<OutputStream> store,
 File target)
                  throws Exception

Store output in a file but ensure that the content is updated atomically. To ensure this, the file is first copied to a temporary file in the same directory as the target. It is then renamed which will first attempt an atomic move but will always replace.

Parameters:

store - the function provide the output

target - the file to store it, parent directories will be created if necessary

Throws:

Exception

stream

public static InputStream stream(byte[] data)

stream

public static InputStream stream(ByteBuffer bb)

stream

public static InputStream stream(String s)

stream

public static InputStream stream(String s,
 String encoding)

stream

public static InputStream stream(String s,
 Charset encoding)

stream

public static InputStream stream(File file)
                          throws IOException

Throws:

IOException

stream

public static InputStream stream(Path path)
                          throws IOException

Throws:

IOException

stream

public static InputStream stream(URL url)
                          throws IOException

Throws:

IOException

readChannel

public static FileChannel readChannel(Path path)
                               throws IOException

Throws:

IOException

outputStream

public static OutputStream outputStream(File file)
                                 throws IOException

Throws:

IOException

outputStream

public static OutputStream outputStream(Path path)
                                 throws IOException

Throws:

IOException

writeChannel

public static FileChannel writeChannel(Path path)
                                throws IOException

Throws:

IOException

decode

public static CharBuffer decode(ByteBuffer bb,
 Charset encoding)

encode

public static ByteBuffer encode(CharBuffer cb,
 Charset encoding)

encode

public static ByteBuffer encode(String s,
 Charset encoding)

reader

public static BufferedReader reader(String s)

reader

public static BufferedReader reader(File file)
                             throws IOException

Throws:

IOException

reader

public static BufferedReader reader(File file,
 String encoding)
                             throws IOException

Throws:

IOException

reader

public static BufferedReader reader(File file,
 Charset encoding)
                             throws IOException

Throws:

IOException

reader

public static BufferedReader reader(Path path,
 Charset encoding)
                             throws IOException

Throws:

IOException

reader

public static BufferedReader reader(ByteBuffer bb,
 Charset encoding)

reader

public static BufferedReader reader(CharBuffer cb)

reader

public static BufferedReader reader(ReadableByteChannel in,
 Charset encoding)

reader

public static BufferedReader reader(InputStream in)

reader

public static BufferedReader reader(InputStream in,
 String encoding)

reader

public static BufferedReader reader(InputStream in,
 Charset encoding)

writer

public static PrintWriter writer(File file)
                          throws IOException

Throws:

IOException

writer

public static PrintWriter writer(File file,
 String encoding)
                          throws IOException

Throws:

IOException

writer

public static PrintWriter writer(File file,
 Charset encoding)
                          throws IOException

Throws:

IOException

writer

public static PrintWriter writer(Path path)
                          throws IOException

Throws:

IOException

writer

public static PrintWriter writer(Path path,
 Charset encoding)
                          throws IOException

Throws:

IOException

writer

public static PrintWriter writer(WritableByteChannel out,
 Charset encoding)

writer

public static PrintWriter writer(OutputStream out)

writer

public static PrintWriter writer(OutputStream out,
 String encoding)

writer

public static PrintWriter writer(OutputStream out,
 Charset encoding)

appendableToWriter

public static Writer appendableToWriter(Appendable appendable)

createSymbolicLink

public static boolean createSymbolicLink(File link,
 File target)
                                  throws IOException

Throws:

IOException

createSymbolicLink

public static boolean createSymbolicLink(Path link,
 Path target)
                                  throws IOException

Throws:

IOException

isSymbolicLink

public static boolean isSymbolicLink(File link)

isSymbolicLink

public static boolean isSymbolicLink(Path link)

createSymbolicLinkOrCopy

public static boolean createSymbolicLinkOrCopy(File link,
 File target)

Creates a symbolic link from link to the target, or copies target to link if running on Windows.

Creating symbolic links on Windows requires administrator permissions, so copying is a safer fallback. Copy only happens if timestamp and and file length are different than target

Parameters:

link - the location of the symbolic link, or destination of the copy.

target - the source of the symbolic link, or source of the copy.

Returns:

true if the operation succeeds, false otherwise.

createSymbolicLinkOrCopy

public static boolean createSymbolicLinkOrCopy(Path link,
 Path target)

Creates a symbolic link from link to the target, or copies target to link if running on Windows.

Creating symbolic links on Windows requires administrator permissions, so copying is a safer fallback. Copy only happens if timestamp and and file length are different than target

Parameters:

link - the location of the symbolic link, or destination of the copy.

target - the source of the symbolic link, or source of the copy.

Returns:

true if the operation succeeds, false otherwise.

toSafeFileName

public static String toSafeFileName(String string)

isWindows

public static boolean isWindows()

readUTF

public static String readUTF(DataInput in)
                      throws IOException

Throws:

IOException

getJavaExecutablePath

public static String getJavaExecutablePath(String name)