org.apache.iotdb.tsfile.encoding.decoder

Class GorillaDecoderV1

java.lang.Object

org.apache.iotdb.tsfile.encoding.decoder.Decoder

org.apache.iotdb.tsfile.encoding.decoder.GorillaDecoderV1

Direct Known Subclasses:

DoublePrecisionDecoderV1, SinglePrecisionDecoderV1

public abstract class GorillaDecoderV1
extends Decoder

Field Summary

Fields

Modifier and Type	Field and Description
protected int	buffer
protected static int	EOF
protected boolean	flag
protected boolean	isEnd
protected int	leadingZeroNum
protected boolean	nextFlag1
protected boolean	nextFlag2
protected int	numberLeftInBuffer
protected int	tailingZeroNum

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	GorillaDecoderV1()

Method Summary

Modifier and Type	Method and Description
protected void	fillBuffer(ByteBuffer buffer) read one byte and save it in the buffer.
boolean	hasNext(ByteBuffer buffer)
protected boolean	isEmpty()
protected boolean	readBit(ByteBuffer buffer)
protected int	readIntFromStream(ByteBuffer buffer, int len) read some bits and convert them to an int value.
protected long	readLongFromStream(ByteBuffer buffer, int len) read some bits and convert them to a long value.
void	reset()

Methods inherited from class org.apache.iotdb.tsfile.encoding.decoder.Decoder

getDecoderByType, getType, readBigDecimal, readBinary, readBoolean, readDouble, readFloat, readInt, readLong, readShort, setType

Methods inherited from class java.lang.Object

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

Field Detail

EOF

protected static final int EOF

See Also:

Constant Field Values

flag

protected boolean flag

leadingZeroNum

protected int leadingZeroNum

tailingZeroNum

protected int tailingZeroNum

isEnd

protected boolean isEnd

buffer

protected int buffer

numberLeftInBuffer

protected int numberLeftInBuffer

nextFlag1

protected boolean nextFlag1

nextFlag2

protected boolean nextFlag2

Constructor Detail

GorillaDecoderV1

protected GorillaDecoderV1()

Method Detail

reset

public void reset()

Specified by:

reset in class Decoder

hasNext

public boolean hasNext(ByteBuffer buffer)
                throws IOException

Specified by:

hasNext in class Decoder

Throws:

IOException

isEmpty

protected boolean isEmpty()

readBit

protected boolean readBit(ByteBuffer buffer)
                   throws IOException

Throws:

IOException

fillBuffer

protected void fillBuffer(ByteBuffer buffer)

read one byte and save it in the buffer.

Parameters:

buffer - ByteBuffer to read

readIntFromStream

protected int readIntFromStream(ByteBuffer buffer,
                                int len)
                         throws IOException

read some bits and convert them to an int value.

Parameters:

buffer - stream to read

len - number of bit to read

Returns:

converted int value

Throws:

IOException - cannot read from stream

readLongFromStream

protected long readLongFromStream(ByteBuffer buffer,
                                  int len)
                           throws IOException

read some bits and convert them to a long value.

Parameters:

buffer - stream to read

len - number of bit to read

Returns:

converted long value

Throws:

IOException - cannot read from stream