org.everrest.core.impl.provider

Class IOHelper

java.lang.Object

org.everrest.core.impl.provider.IOHelper

public final class IOHelper
extends Object

Version:

$Id$

Author:

Andrey Parfonov

Method Summary

Modifier and Type	Method and Description
static InputStream	bufferStream(InputStream in, int maxMemSize) Buffer input stream in memory of in file.
static String	readString(InputStream in, String cs) Read String from given InputStream.
static void	write(InputStream in, OutputStream out) Write data from InputStream to OutputStream.
static void	write(Reader in, Writer out) Write data from Reader to Writer.
static void	writeString(String s, OutputStream out, String cs) Write String to OutputStream.

Methods inherited from class java.lang.Object

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

Method Detail

write

public static void write(InputStream in,
                         OutputStream out)
                  throws IOException

Write data from InputStream to OutputStream.

Parameters:

in - See InputStream

out - See OutputStream

Throws:

IOException - if i/o errors occurs

write

public static void write(Reader in,
                         Writer out)
                  throws IOException

Write data from Reader to Writer.

Parameters:

in - See Reader

out - See Writer

Throws:

IOException - if i/o errors occurs

readString

public static String readString(InputStream in,
                                String cs)
                         throws IOException

Read String from given InputStream.

Parameters:

in - source stream for reading

cs - character set, if null then DEFAULT_CHARSET will be used

Returns:

resulting String

Throws:

IOException - if i/o errors occurs

writeString

public static void writeString(String s,
                               OutputStream out,
                               String cs)
                        throws IOException

Write String to OutputStream.

Parameters:

s - String

out - See OutputStream

cs - character set, if null then DEFAULT_CHARSET will be used

Throws:

IOException - if i/o errors occurs

bufferStream

public static InputStream bufferStream(InputStream in,
                                       int maxMemSize)
                                throws IOException

Buffer input stream in memory of in file. If size of stream is less then maxMemSize all data stored in memory otherwise stored in file.

Parameters:

in - source stream

maxMemSize - max size of data to keep in memory

Returns:

stream buffered in memory or in file

Throws:

IOException - if any i/o error occurs