com.sap.portal.httpconnectivity.transformationservice.xmlsource
Class XMLSourceBufferedInputStream

java.lang.Object
  |
  +--java.io.InputStream
        |
        +--java.io.FilterInputStream
              |
              +--java.io.BufferedInputStream
                    |
                    +--com.sap.portal.httpconnectivity.transformationservice.xmlsource.XMLSourceBufferedInputStream

public class XMLSourceBufferedInputStream

extends java.io.BufferedInputStream

Class that used to buffer the data of the stream source so it could be cached later.
The data is stored when the input stream read methods are called.
Note: Used internaly.

Version:

Since EP 6.0 SP7

Field Summary

protected com.sap.engine.lib.util.ArrayByte

m_arrayByte Buffer holding the data

Fields inherited from class java.io.BufferedInputStream

buf, count, marklimit, markpos, pos

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

XMLSourceBufferedInputStream(java.io.InputStream is)
Creates a new XMLSourceBufferedInputStream object.

Method Summary

protected com.sap.engine.lib.util.ArrayByte	getByteBuffer() Gets the data stored from the input stream.
int	read() Read one byte from the input stream and stores it in the buffer.
int	read(byte[] readBuf) Reads some number of bytes from the input stream and then stores them into the returned buffer array readBuf and in the cache buffer array m_arrayByte.
int	read(byte[] readBuf, int off, int len) Reads up to len bytes of data from the input stream into the readBufarray of bytes and stores the bytes in the m_arrayByte buffer.

Methods inherited from class java.io.BufferedInputStream

available, close, mark, markSupported, reset, skip

Methods inherited from class java.lang.Object

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

Field Detail

m_arrayByte

protected com.sap.engine.lib.util.ArrayByte m_arrayByte

Buffer holding the data

Constructor Detail

XMLSourceBufferedInputStream

public XMLSourceBufferedInputStream(java.io.InputStream is)

Creates a new XMLSourceBufferedInputStream object.

Parameters:

is - the buffered stream

Method Detail

getByteBuffer

protected com.sap.engine.lib.util.ArrayByte getByteBuffer()

Gets the data stored from the input stream.

Returns:

the data stored from the input stream

read

public int read()
         throws java.io.IOException

Read one byte from the input stream and stores it in the buffer.

Overrides:

read in class java.io.BufferedInputStream

Returns:

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

Throws:

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

read

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

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

Overrides:

read in class java.io.FilterInputStream

Parameters:

readBuf - buffer of bytes that will be filled with data from the input field.

Returns:

number of bytes read from the input stream

Throws:

java.io.IOException - when cannot read from the input stream

read

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

Reads up to len bytes of data from the input stream into the readBufarray of bytes and stores the bytes in the m_arrayByte buffer. An attempt is made to read as many as len bytes, but a smaller number may be read, possibly zero. The number of bytes actually read is returned as an integer.

Overrides:

read in class java.io.BufferedInputStream

Parameters:

readBuf - the buffer into which the data is read

off - the start offset in array readBuf at which the data is written

len - the maximum number of bytes to read

Returns:

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.

Throws:

java.io.IOException - when cannot read from the input stream