org.melati.util
Class IoUtils

java.lang.Object
  org.melati.util.IoUtils

public final class IoUtils
extends Object

IO utilities.

Method Summary

static void	copy(File from, int buf, File to) Copy from one file to another.
static void	copy(InputStream i, int buf, OutputStream o) Copy from an InputStream to an OutputStream.
static void	copy(Reader i, int buf, Writer o) Copy from a Reader to a Writer.
static byte[]	slurp(File f, int estimate) Read a file into a byte array.
static byte[]	slurp(InputStream i, int estimate) Read into a byte array.
static byte[]	slurp(InputStream i, int estimate, int limit) Read into a byte array.
static char[]	slurp(Reader i, int estimate) Read from a Reader into a byte array.
static char[]	slurp(Reader i, int estimate, int limit) Read from a Reader into a byte array.
static byte[]	slurp(URL url, int estimate) Read an url into a byte array.
static byte[]	slurp(URL url, int estimate, int max) Read an url into a byte array, with a limit.
static byte[]	slurpOutputOf_bytes(String[] command, int estimate, int limit) Read the output of a system command into a byte array.
static String	slurpOutputOf(String[] command, int estimate, int limit) Read the output of a system command into a byte array.

Methods inherited from class java.lang.Object

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

Method Detail

slurp

public static byte[] slurp(InputStream i,
                           int estimate,
                           int limit)
                    throws IOException

Read into a byte array. Not sure this is really optimal.

Parameters:

i - the inputStream

estimate - approximately how big

limit - will not be bigger than

Returns:

a byte array no bigger than limit

Throws:

IOException

slurp

public static byte[] slurp(InputStream i,
                           int estimate)
                    throws IOException

Read into a byte array. Used in bibliomania.

Parameters:

i - the inputStream

estimate - approximately how big

Returns:

a byte array no bigger than Integer.MAX_VALUE

Throws:

IOException

slurp

public static byte[] slurp(URL url,
                           int estimate)
                    throws IOException

Read an url into a byte array. Used in bibliomania.

Parameters:

url - the url to read

estimate - approximately how big

Returns:

a byte array no bigger than Integer.MAX_VALUE

Throws:

IOException

slurp

public static byte[] slurp(URL url,
                           int estimate,
                           int max)
                    throws IOException

Read an url into a byte array, with a limit. Used in bibliomania.

Parameters:

url - the url to read

estimate - approximately how big

max - limit

Returns:

a byte array no bigger than max

Throws:

IOException

slurp

public static byte[] slurp(File f,
                           int estimate)
                    throws IOException

Read a file into a byte array. Used in bibliomania.

Parameters:

f - file to read

estimate - approximately how big

Returns:

a byte array no bigger than Integer.MAX_VALUE

Throws:

IOException

slurp

public static char[] slurp(Reader i,
                           int estimate,
                           int limit)
                    throws IOException

Read from a Reader into a byte array. Not used elsewhere as of 30/11/2006.

Parameters:

i - Reader to read

estimate - approximately how big

limit - max size

Returns:

a byte array no bigger than limit

Throws:

IOException

slurp

public static char[] slurp(Reader i,
                           int estimate)
                    throws IOException

Read from a Reader into a byte array. Used in bibliomania.

Parameters:

i - Reader to read

estimate - approximately how big

Returns:

a byte array no bigger than Integer.MAX_VALUE

Throws:

IOException

slurpOutputOf_bytes

public static byte[] slurpOutputOf_bytes(String[] command,
                                         int estimate,
                                         int limit)
                                  throws IOException

Read the output of a system command into a byte array. Warning: potentially inefficient. Not used elsewhere as of 30/11/2006.

Parameters:

command - the command to run

estimate - approximately how big

limit - max size

Returns:

a byte array no bigger than limit

Throws:

IOException

slurpOutputOf

public static String slurpOutputOf(String[] command,
                                   int estimate,
                                   int limit)
                            throws IOException

Read the output of a system command into a byte array. Warning: potentially inefficient. Not used elsewhere as of 30/11/2006.

Parameters:

command - the command to run

estimate - approximately how big

limit - max size

Returns:

a String no bigger than limit

Throws:

IOException

copy

public static void copy(InputStream i,
                        int buf,
                        OutputStream o)
                 throws IOException

Copy from an InputStream to an OutputStream. Not used elsewhere as of 30/11/2006.

Parameters:

i - the InputStream

buf - the size of buffer to use

o - the OutputStream

Throws:

IOException

copy

public static void copy(Reader i,
                        int buf,
                        Writer o)
                 throws IOException

Copy from a Reader to a Writer. Not used elsewhere as of 30/11/2006.

Parameters:

i - the Reader

buf - the size of buffer to use

o - the Writer

Throws:

IOException

copy

public static void copy(File from,
                        int buf,
                        File to)
                 throws IOException

Copy from one file to another. Used in bibliomania.

Parameters:

from - input file

buf - the size of buffer to use

to - output file

Throws:

IOException