org.apache.tika.parser.microsoft.onenote.fsshttpb.util

Class BitReader

java.lang.Object

org.apache.tika.parser.microsoft.onenote.fsshttpb.util.BitReader

public class BitReader
extends Object

A class is used to extract values across byte boundaries with arbitrary bit positions.

Constructor Summary

Constructors

Constructor and Description
BitReader(byte[] array, int index) Initializes a new instance of the BitReader class with specified bytes buffer and start position in byte.

Method Summary

Modifier and Type	Method and Description
void	dispose() Assign the internal read buffer to null.
boolean	getCurrent()
boolean	moveNext() Advances the enumerator to the next bit of the byte array.
byte[]	readBytes(int readingLength) Reading the bytes specified by the byte length.
UUID	readGuid() Read as a GUID from the current offset position and increate the bit offset with 128 bit.
short	readInt16(int readingLength) Read specified bit length content as an UInt16 type and increase the bit offset with the specified length.
int	readInt32(int readingLength) Read specified bit length content as an Int32 type and increase the bit offset with the specified length.
int	readUInt16(int readingLength)
int	readUInt32(int readingLength) Read specified bit length content as an UInt32 type and increase the bit offset with the specified length.
long	readUInt64(int readingLength) Read specified bit length content as an UInt64 type and increase the bit offset.
void	reset() Sets the enumerator to its initial position, which is before the first bit in the byte array.

Methods inherited from class java.lang.Object

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

Constructor Detail

BitReader

public BitReader(byte[] array,
                 int index)

Initializes a new instance of the BitReader class with specified bytes buffer and start position in byte.

Parameters:

array - Specify the byte array which contains the bytes need to be read.

index - Specify the start position in byte.

Method Detail

getCurrent

public boolean getCurrent()

readUInt64

public long readUInt64(int readingLength)
                throws IOException

Read specified bit length content as an UInt64 type and increase the bit offset.

Parameters:

readingLength - Specify the reading bit length.

Returns:

Return the UInt64 type value.

Throws:

IOException

readUInt32

public int readUInt32(int readingLength)
               throws IOException

Read specified bit length content as an UInt32 type and increase the bit offset with the specified length.

Parameters:

readingLength - Specify the reading bit length.

Returns:

Return the UInt32 type value.

Throws:

IOException

readUInt16

public int readUInt16(int readingLength)
               throws IOException

Throws:

IOException

readBytes

public byte[] readBytes(int readingLength)
                 throws IOException

Reading the bytes specified by the byte length.

Parameters:

readingLength - Specify the reading byte length.

Returns:

Return the read bytes array.

Throws:

IOException

readInt16

public short readInt16(int readingLength)
                throws IOException

Read specified bit length content as an UInt16 type and increase the bit offset with the specified length.

Parameters:

readingLength - Specify the reading bit length.

Returns:

Return the UInt16 value.

Throws:

IOException

readInt32

public int readInt32(int readingLength)
              throws IOException

Read specified bit length content as an Int32 type and increase the bit offset with the specified length.

Parameters:

readingLength - Specify the reading bit length.

Returns:

Return the Int32 type value.

Throws:

IOException

readGuid

public UUID readGuid()
              throws IOException

Read as a GUID from the current offset position and increate the bit offset with 128 bit.

Returns:

Return the GUID value.

Throws:

IOException

moveNext

public boolean moveNext()

Advances the enumerator to the next bit of the byte array.

Returns:

true if the enumerator was successfully advanced to the next bit; false if the enumerator has passed the end of the byte array.

dispose

public void dispose()

Assign the internal read buffer to null.

reset

public void reset()

Sets the enumerator to its initial position, which is before the first bit in the byte array.