jhelp.util.io

Class InputStreamCopy

java.lang.Object

java.io.InputStream

jhelp.util.io.InputStreamCopy

All Implemented Interfaces:

java.io.Closeable, java.lang.AutoCloseable

public class InputStreamCopy
extends java.io.InputStream

Input stream that write what it reads in output stream at same time

Last modification : 15 sept. 2010
Version 0.0.0

Author:

JHelp

Field Summary

Fields

Modifier and Type	Field and Description
private java.io.InputStream	inputStream Stream to read
private java.io.OutputStream	outputStream Stream where write

Constructor Summary

Constructors

Constructor and Description
InputStreamCopy(java.io.InputStream inputStream, java.io.OutputStream outputStream) Constructs InputStreamCopy

Method Summary

Methods

Modifier and Type	Method and Description
int	available() Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream.
void	close() Close the streams
void	mark(int readlimit) Mark aren't manage here, so do nothing
boolean	markSupported() Mark aren't manage, so not supported
int	read() Read one byte (Byte is also write in the output stream)
int	read(byte[] b) Read bytes and copy them in an array.
int	read(byte[] b, int off, int len) Read bytes and copy them in an array.
void	reset() Mark aren't manage, so do nothing
long	skip(long n) Skip several bytes.

Methods inherited from class java.lang.Object

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

Field Detail

inputStream

private java.io.InputStream inputStream

Stream to read

outputStream

private java.io.OutputStream outputStream

Stream where write

Constructor Detail

InputStreamCopy

public InputStreamCopy(java.io.InputStream inputStream,
               java.io.OutputStream outputStream)

Constructs InputStreamCopy

Parameters:

inputStream - Stream to read

outputStream - Stream where copy

Method Detail

available

public int available()
              throws java.io.IOException

Returns an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking by the next invocation of a method for this input stream. The next invocation might be the same thread or another thread. A single read or skip of this many bytes will not block, but may read or skip fewer bytes.

Note that while some implementations of InputStream will return the total number of bytes in the stream, many will not. It is never correct to use the return value of this method to allocate a buffer intended to hold all data in this stream.

A subclass' implementation of this method may choose to throw an IOException if this input stream has been closed by invoking the close() method.

The available method for class InputStream always returns 0.

This method should be overridden by subclasses.

Overrides:

available in class java.io.InputStream

Returns:

an estimate of the number of bytes that can be read (or skipped over) from this input stream without blocking or 0 when it reaches the end of the input stream.

Throws:

java.io.IOException - if an I/O error occurs.

See Also:

InputStream.available()

close

public void close()
           throws java.io.IOException

Close the streams

Specified by:

close in interface java.io.Closeable

Specified by:

close in interface java.lang.AutoCloseable

Overrides:

close in class java.io.InputStream

Throws:

java.io.IOException - On closing issue

See Also:

InputStream.close()

mark

public void mark(int readlimit)

Mark aren't manage here, so do nothing

Overrides:

mark in class java.io.InputStream

Parameters:

readlimit - Ignore here

See Also:

InputStream.mark(int)

markSupported

public boolean markSupported()

Mark aren't manage, so not supported

Overrides:

markSupported in class java.io.InputStream

Returns:

false

See Also:

InputStream.markSupported()

read

public int read()
         throws java.io.IOException

Read one byte (Byte is also write in the output stream)

Specified by:

read in class java.io.InputStream

Returns:

Byte read

Throws:

java.io.IOException - On read/write issue

See Also:

InputStream.read()

read

public int read(byte[] b)
         throws java.io.IOException

Read bytes and copy them in an array. Remember that there also copy in the output stream

Overrides:

read in class java.io.InputStream

Parameters:

b - Array to fill

Returns:

Number of bytes read

Throws:

java.io.IOException - On read/write issue

See Also:

InputStream.read(byte[])

read

public int read(byte[] b,
       int off,
       int len)
         throws java.io.IOException

Read bytes and copy them in an array. Remember that there also copy in the output stream

Overrides:

read in class java.io.InputStream

Parameters:

b - Array to fill

off - Offset to start to read

len - Number of bytes to read

Returns:

Number of bytes read

Throws:

java.io.IOException - On read/write issue

See Also:

InputStream.read(byte[], int, int)

reset

public void reset()
           throws java.io.IOException

Mark aren't manage, so do nothing

Overrides:

reset in class java.io.InputStream

Throws:

java.io.IOException - Not throw

See Also:

InputStream.reset()

skip

public long skip(long n)
          throws java.io.IOException

Skip several bytes. The skipped bytes are also copy in the output stream

Overrides:

skip in class java.io.InputStream

Parameters:

n - Number of bytes to skip

Returns:

Real number skipped bytes

Throws:

java.io.IOException - On read/write issue

See Also:

InputStream.skip(long)