org.millscript.office.excel
Class BIFFRecordInputStream

java.lang.Object
  org.millscript.office.excel.BIFFRecordInputStream

public class BIFFRecordInputStream
extends java.lang.Object

This class extends a filter input stream with the methods required to decode BIFF records.

Constructor Summary

BIFFRecordInputStream(byte[] b)
Constructs a new BIFF record input stream to read records from the specified byte array.

BIFFRecordInputStream(java.io.InputStream is)
Constructs a new BIFF record input stream to read records from the specified input stream.

Method Summary

boolean	hasMoreBytes()
int	read()
int	read2ByteInt() Reads 2 bytes from the stream as a 16 bit little endian positive integer.
byte[]	readBytes(int len) Reads the requeste number of bytes from the stream and returns them as a byte array.
byte[]	readRecordData() Returns the next records data.

Methods inherited from class java.lang.Object

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

Constructor Detail

BIFFRecordInputStream

public BIFFRecordInputStream(byte[] b)

Constructs a new BIFF record input stream to read records from the specified byte array.

Parameters:

b - the byte array to decode

BIFFRecordInputStream

public BIFFRecordInputStream(java.io.InputStream is)

Constructs a new BIFF record input stream to read records from the specified input stream.

Parameters:

is - the InputStream to fetch byte data from

Method Detail

hasMoreBytes

public boolean hasMoreBytes()

read

public int read()
         throws java.io.IOException

Throws:

java.io.IOException

read2ByteInt

public int read2ByteInt()

Reads 2 bytes from the stream as a 16 bit little endian positive integer.

Returns:

an int for the two bytes read from the stream

Throws:

java.io.IOException - if there is a problem reading from the stream

readBytes

public byte[] readBytes(int len)

Reads the requeste number of bytes from the stream and returns them as a byte array.

Parameters:

len - the number of bytes to read from the stream

Returns:

a byte array holding the bytes read

Throws:

java.io.IOException - if there is a problem reading from the stream

readRecordData

public byte[] readRecordData()

Returns the next records data. This is equivalent to a call to read2ByteInt() to determine the record data length then calling readBytes(int) to read the data.

Returns:

a byte array with the next records data.

Throws:

java.io.IOException - if there is a problem reading from the stream