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

All Implemented Interfaces:

Closeable, AutoCloseable

public class XMLSourceBufferedInputStream
extends BufferedInputStream

A class used to buffer the data of the source stream so it can be cached. The data is stored when the input stream read methods are called.
Note: Used internally.

Field Summary

Fields

Modifier and Type	Field and Description
protected com.sap.engine.lib.util.ArrayByte	m_arrayByte The buffer that holds the data.

Fields inherited from class java.io.BufferedInputStream

buf, count, marklimit, markpos, pos

Fields inherited from class java.io.FilterInputStream

in

Constructor Summary

Constructors

Constructor and Description
XMLSourceBufferedInputStream(InputStream is) The class constructor.

Method Summary

Modifier and Type	Method and Description
protected com.sap.engine.lib.util.ArrayByte	getByteBuffer() Gets the stored data from the input stream.
int	read() Reads one byte from the input stream and stores it in the buffer.
int	read(byte[] readBuf) Reads a number of bytes from the input stream and then stores them in the specified 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 readBuf array 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

The buffer that holds the data.

Constructor Detail

XMLSourceBufferedInputStream

public XMLSourceBufferedInputStream(InputStream is)

The class constructor.

Parameters:

is - the buffered stream

Method Detail

getByteBuffer

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

Gets the stored data from the input stream.

Returns:

the data from the input stream

read

public int read()
         throws IOException

Reads one byte from the input stream and stores it in the buffer. -1 indicates there is no more data to read.

Overrides:

read in class BufferedInputStream

Returns:

the next byte of data

Throws:

IOException - if the operation fails

read

public int read(byte[] readBuf)
         throws IOException

Reads a number of bytes from the input stream and then stores them in the specified buffer array (readBuf) and in the cache buffer array (m_arrayByte). The number of bytes actually read is returned as an integer. This method repeats until input data is unavailable, an end of file is detected, or an exception is thrown.

Overrides:

read in class FilterInputStream

Parameters:

readBuf - the buffer into which the input stream data is read

Returns:

number the number of bytes read from the input stream

Throws:

IOException - if the operation fails

read

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

Reads up to len bytes of data from the input stream into the readBuf array 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, including zero bytes. The number of bytes actually read is returned as an integer; -1 indicates there is no more data to read.

Overrides:

read in class BufferedInputStream

Parameters:

readBuf - the buffer into which the input stream data is read

off - the start offset in array readBuf where the data is written

len - the maximum number of bytes to read

Returns:

the total number of bytes read into the buffer

Throws:

IOException - if the operation fails