GorillaDecoderV1 (IoTDB: Core: TsFile 1.3.0 API)

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	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 Description

protected GorillaDecoderV1()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	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