net.anotheria.util

Class IOUtils

java.lang.Object

net.anotheria.util.IOUtils

public final class IOUtils
extends Object

Utils for input output.

Author:

lrosenberg

Constructor Summary

Constructors

Constructor and Description
IOUtils()

Method Summary

Methods

Modifier and Type	Method and Description
static void	closeIgnoringException(Closeable closeable) Closes Closeable instance ignoring IOException.
static void	main(String[] a)
static byte[]	readBytes(InputStream in)
static byte[]	readFileAtOnce(File file) Reads the contents of the file at once and returns the byte array.
static byte[]	readFileAtOnce(String filename) Reads the contents of the file at once and returns the byte array.
static String	readFileAtOnceAsString(File file) Reads a file and returns the contents as string.
static String	readFileAtOnceAsString(String filename) Reads a file and returns the contents as string.
static String	readFileBufferedAsString(File file, String charset)
static String	readFileBufferedAsString(String filename) Instead of reading the file at once, reads the file by reading 2K blocks.
static String	readInputStreamBufferedAsString(InputStream in, String charset)
static String	readlineFromStdIn() Reads a line from standard input.

Methods inherited from class java.lang.Object

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

Constructor Detail

IOUtils

public IOUtils()

Method Detail

readFileAtOnce

public static final byte[] readFileAtOnce(File file)
                                   throws IOException

Reads the contents of the file at once and returns the byte array.

Parameters:

file -

Returns:

Throws:

IOException

readFileAtOnce

public static final byte[] readFileAtOnce(String filename)
                                   throws IOException

Reads the contents of the file at once and returns the byte array.

Parameters:

filename - name of the file.

Returns:

Throws:

IOException

readFileAtOnceAsString

public static final String readFileAtOnceAsString(String filename)
                                           throws IOException

Reads a file and returns the contents as string.

Parameters:

filename -

Returns:

Throws:

IOException

readFileAtOnceAsString

public static final String readFileAtOnceAsString(File file)
                                           throws IOException

Reads a file and returns the contents as string.

Parameters:

file -

Returns:

Throws:

IOException

readFileBufferedAsString

public static final String readFileBufferedAsString(String filename)
                                             throws IOException

Instead of reading the file at once, reads the file by reading 2K blocks. Useful for reading special files, where the size of the file isn't determinable, for example /proc/xxx files on linux.

Parameters:

filename -

Returns:

Throws:

IOException

readInputStreamBufferedAsString

public static final String readInputStreamBufferedAsString(InputStream in,
                                     String charset)
                                                    throws IOException

Throws:

IOException

readFileBufferedAsString

public static final String readFileBufferedAsString(File file,
                              String charset)
                                             throws IOException

Throws:

IOException

main

public static void main(String[] a)
                 throws Exception

Throws:

Exception

readlineFromStdIn

public static String readlineFromStdIn()
                                throws IOException

Reads a line from standard input.

Returns:

Throws:

IOException

closeIgnoringException

public static void closeIgnoringException(Closeable closeable)

Closes Closeable instance ignoring IOException. Should be called from a finally block whenever Closeable is used.

Parameters:

closeable - to close

readBytes

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

Throws:

IOException