Package io.trino.parquet.reader

Class SimpleSliceInputStream

java.lang.Object

io.trino.parquet.reader.SimpleSliceInputStream

public final class SimpleSliceInputStream
extends Object

Basic input stream based on a given Slice object. This is a simpler version of BasicSliceInput with a few additional methods.

Note that methods starting with 'read' modify the underlying offset, while 'get' methods return value without modifying the state

Constructor Summary

Constructors

Constructor	Description
SimpleSliceInputStream(io.airlift.slice.Slice slice)
SimpleSliceInputStream(io.airlift.slice.Slice slice, int offset)

Method Summary

Modifier and Type	Method	Description
io.airlift.slice.Slice	asSlice()
void	ensureBytesAvailable(int bytes)
byte[]	getByteArray()	Returns the byte array wrapped by this Slice.
int	getByteArrayOffset()	Returns the start index the content of this slice within the byte array wrapped by this slice.
byte	getByteUnsafe(int index)	Always check if needed data is available with ensureBytesAvailable method.
int	getIntUnsafe(int index)	Always check if needed data is available with ensureBytesAvailable method.
long	getLongUnsafe(int index)	Always check if needed data is available with ensureBytesAvailable method.
byte	readByte()
byte[]	readBytes()
void	readBytes(byte[] output, int outputOffset, int length)
void	readBytes(io.airlift.slice.Slice destination, int destinationIndex, int length)
int	readInt()
int	readIntUnsafe()	Always check if needed data is available with ensureBytesAvailable method.
long	readLong()
long	readLongUnsafe()	Always check if needed data is available with ensureBytesAvailable method.
short	readShort()
io.airlift.slice.Slice	readSlice(int length)
void	skip(int n)

Methods inherited from class java.lang.Object

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

Constructor Details

SimpleSliceInputStream

public SimpleSliceInputStream(io.airlift.slice.Slice slice)

SimpleSliceInputStream

public SimpleSliceInputStream(io.airlift.slice.Slice slice,
 int offset)

Method Details

readByte

public byte readByte()

readShort

public short readShort()

readInt

public int readInt()

readLong

public long readLong()

readBytes

public byte[] readBytes()

readBytes

public void readBytes(byte[] output,
 int outputOffset,
 int length)

readBytes

public void readBytes(io.airlift.slice.Slice destination,
 int destinationIndex,
 int length)

readSlice

public io.airlift.slice.Slice readSlice(int length)

skip

public void skip(int n)

asSlice

public io.airlift.slice.Slice asSlice()

getByteArray

public byte[] getByteArray()

Returns the byte array wrapped by this Slice. Callers should take care to use getByteArrayOffset() since the contents of this Slice may not start at array index 0.

getByteArrayOffset

public int getByteArrayOffset()

Returns the start index the content of this slice within the byte array wrapped by this slice.

ensureBytesAvailable

public void ensureBytesAvailable(int bytes)

readIntUnsafe

public int readIntUnsafe()

Always check if needed data is available with ensureBytesAvailable method. Failing to do so may result in instant JVM crash.

readLongUnsafe

public long readLongUnsafe()

Always check if needed data is available with ensureBytesAvailable method. Failing to do so may result in instant JVM crash.

getByteUnsafe

public byte getByteUnsafe(int index)

Always check if needed data is available with ensureBytesAvailable method. Failing to do so may result in instant JVM crash.

getIntUnsafe

public int getIntUnsafe(int index)

Always check if needed data is available with ensureBytesAvailable method. Failing to do so may result in instant JVM crash.

getLongUnsafe

public long getLongUnsafe(int index)

Always check if needed data is available with ensureBytesAvailable method. Failing to do so may result in instant JVM crash.