com.wewebu.ow.server.util.upload

Class OwFileUpStream

java.lang.Object

java.io.InputStream

java.io.FilterInputStream

com.wewebu.ow.server.util.upload.OwFileUpStream

All Implemented Interfaces:

Closeable, AutoCloseable

public class OwFileUpStream
extends FilterInputStream

PartInputStream filters a ServletInputStream, providing access to a single MIME part contained with in which ends with the boundary specified. It uses buffering to provide performance.

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Field Summary

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
OwFileUpStream(javax.servlet.ServletInputStream in_p, String boundary_p) Creates a PartInputStream which stops at the specified boundary from a ServletInputStream.

Method Summary

Methods

Modifier and Type	Method and Description
int	available() Returns the number of bytes that can be read from this input stream without blocking.
void	close() Closes this input stream and releases any system resources associated with the stream.
int	read() Reads the next byte of data from the InputStream.
int	read(byte[] b_p) Reads some number of bytes from the input stream and stores them into the buffer array.
int	read(byte[] b_p, int off_p, int len_p) Read upto len bytes of data from inputstream into an array of bytes.

Methods inherited from class java.io.FilterInputStream

mark, markSupported, reset, skip

Methods inherited from class java.lang.Object

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

Constructor Detail

OwFileUpStream

public OwFileUpStream(javax.servlet.ServletInputStream in_p,
              String boundary_p)
               throws IOException

Creates a PartInputStream which stops at the specified boundary from a ServletInputStream.

Parameters:

in_p -

boundary_p -

Throws:

IOException

Method Detail

read

public int read()
         throws IOException

Reads the next byte of data from the InputStream.

Overrides:

read in class FilterInputStream

Returns:

int the next byte of data, or -1 if the end of the stream is reached.

Throws:

IOException - if an input or output exception has occurred.

read

public int read(byte[] b_p)
         throws IOException

Reads some number of bytes from the input stream and stores them into the buffer array. The number of bytes actually read is returned as integer. This method blocks untill input data is available, end of file is detected, or exception is thrown

Overrides:

read in class FilterInputStream

Parameters:

b_p - the byte array buffer into which the data is read.

Throws:

IOException

read

public int read(byte[] b_p,
       int off_p,
       int len_p)
         throws IOException

Read upto len bytes of data from inputstream into an array of bytes. The number of bytes actually read is returned as integer. This method blocks untill input data is available, end of file is detected, or an exception is thrown.

Overrides:

read in class FilterInputStream

Parameters:

b_p - the byte array buffer into which the data is read.

off_p - int the start offset of the data.

len_p - int the total number of bytes read into the buffer, or -1 if there is no more data because the end of the stream has been reached

Returns:

int

Throws:

IOException - if an I/O error occurs.

available

public int available()
              throws IOException

Returns the number of bytes that can be read from this input stream without blocking.

Overrides:

available in class FilterInputStream

Returns:

the number of bytes that can be read from the input stream without blocking.

Throws:

IOException - if an I/O error occurs.

close

public void close()
           throws IOException

Closes this input stream and releases any system resources associated with the stream.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class FilterInputStream

Throws:

IOException - if an I/O error occurs.