Package io.airlift.slice

Class ChunkedSliceInput

java.lang.Object

java.io.InputStream

io.airlift.slice.SliceInput

io.airlift.slice.FixedLengthSliceInput

io.airlift.slice.ChunkedSliceInput

All Implemented Interfaces:

Closeable, DataInput, AutoCloseable

public final class ChunkedSliceInput
extends FixedLengthSliceInput

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	ChunkedSliceInput.BufferReference
static interface	ChunkedSliceInput.SliceLoader<B extends ChunkedSliceInput.BufferReference>

Constructor Summary

Constructors

Constructor	Description
ChunkedSliceInput(ChunkedSliceInput.SliceLoader<?> loader, int bufferSize)

Method Summary

Modifier and Type	Method	Description
int	available()	Returns the number of bytes that can be read without blocking.
void	close()
void	ensureAvailable(int size)
long	getRetainedSize()	Approximate number of bytes retained by this instance.
boolean	isReadable()	Returns true if and only if available() is greater than 0.
long	length()	Gets the total size of this input stream.
long	position()	Returns the position of this buffer.
int	read()
int	read(byte[] destination, int destinationIndex, int length)
boolean	readBoolean()	Returns true if the byte at the current position is not 0 and increases the position by 1 in this buffer.
byte	readByte()	Gets a byte at the current position and increases the position by 1 in this buffer.
void	readBytes(byte[] destination, int destinationIndex, int length)	Transfers this buffer's data to the specified destination starting at the current position and increases the position by the number of the transferred bytes (= length).
void	readBytes(Slice destination, int destinationIndex, int length)	Transfers this buffer's data to the specified destination starting at the current position and increases the position by the number of the transferred bytes (= length).
void	readBytes(OutputStream out, int length)	Transfers this buffer's data to the specified stream starting at the current position.
double	readDouble()	Gets a 64-bit double at the current position and increases the position by 8 in this buffer.
float	readFloat()	Gets a 32-bit float at the current position and increases the position by 4 in this buffer.
int	readInt()	Gets a 32-bit integer at the current position and increases the position by 4 in this buffer.
long	readLong()	Gets a 64-bit long at the current position and increases the position by 8 in this buffer.
short	readShort()	Gets a 16-bit short integer at the current position and increases the position by 2 in this buffer.
Slice	readSlice(int length)	Returns a new slice of this buffer's sub-region starting at the current position and increases the position by the size of the new slice (= length).
int	readUnsignedByte()	Gets an unsigned byte at the current position and increases the position by 1 in this buffer.
int	readUnsignedShort()	Gets an unsigned 16-bit short integer at the current position and increases the position by 2 in this buffer.
void	setPosition(long position)	Sets the position of this buffer.
long	skip(long length)
int	skipBytes(int length)
String	toString()

Methods inherited from class io.airlift.slice.FixedLengthSliceInput

remaining

Methods inherited from class io.airlift.slice.SliceInput

mark, markSupported, read, readBytes, readBytes, readBytes, readChar, readFully, readFully, readLine, readUnsignedInt, readUTF, reset

Methods inherited from class java.io.InputStream

nullInputStream, readAllBytes, readNBytes, readNBytes, skipNBytes, transferTo

Methods inherited from class java.lang.Object

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

Constructor Details

ChunkedSliceInput

public ChunkedSliceInput(ChunkedSliceInput.SliceLoader<?> loader,
 int bufferSize)

Method Details

length

public long length()

Description copied from class: FixedLengthSliceInput

Gets the total size of this input stream.

Specified by:

length in class FixedLengthSliceInput

position

public long position()

Description copied from class: SliceInput

Returns the position of this buffer.

Specified by:

position in class SliceInput

setPosition

public void setPosition(long position)

Description copied from class: SliceInput

Sets the position of this buffer.

Specified by:

setPosition in class SliceInput

isReadable

public boolean isReadable()

Description copied from class: SliceInput

Returns true if and only if available() is greater than 0.

Specified by:

isReadable in class SliceInput

available

public int available()

Description copied from class: SliceInput

Returns the number of bytes that can be read without blocking.

Specified by:

available in class SliceInput

ensureAvailable

public void ensureAvailable(int size)

readBoolean

public boolean readBoolean()

Description copied from class: SliceInput

Returns true if the byte at the current position is not 0 and increases the position by 1 in this buffer.

Specified by:

readBoolean in interface DataInput

Specified by:

readBoolean in class SliceInput

read

public int read()

Specified by:

read in class SliceInput

readByte

public byte readByte()

Description copied from class: SliceInput

Gets a byte at the current position and increases the position by 1 in this buffer.

Specified by:

readByte in interface DataInput

Specified by:

readByte in class SliceInput

readUnsignedByte

public int readUnsignedByte()

Description copied from class: SliceInput

Gets an unsigned byte at the current position and increases the position by 1 in this buffer.

Specified by:

readUnsignedByte in interface DataInput

Specified by:

readUnsignedByte in class SliceInput

readShort

public short readShort()

Description copied from class: SliceInput

Gets a 16-bit short integer at the current position and increases the position by 2 in this buffer.

Specified by:

readShort in interface DataInput

Specified by:

readShort in class SliceInput

readUnsignedShort

public int readUnsignedShort()

Description copied from class: SliceInput

Gets an unsigned 16-bit short integer at the current position and increases the position by 2 in this buffer.

Specified by:

readUnsignedShort in interface DataInput

Specified by:

readUnsignedShort in class SliceInput

readInt

public int readInt()

Description copied from class: SliceInput

Gets a 32-bit integer at the current position and increases the position by 4 in this buffer.

Specified by:

readInt in interface DataInput

Specified by:

readInt in class SliceInput

readLong

public long readLong()

Description copied from class: SliceInput

Gets a 64-bit long at the current position and increases the position by 8 in this buffer.

Specified by:

readLong in interface DataInput

Specified by:

readLong in class SliceInput

readFloat

public float readFloat()

Description copied from class: SliceInput

Gets a 32-bit float at the current position and increases the position by 4 in this buffer.

Specified by:

readFloat in interface DataInput

Specified by:

readFloat in class SliceInput

readDouble

public double readDouble()

Description copied from class: SliceInput

Gets a 64-bit double at the current position and increases the position by 8 in this buffer.

Specified by:

readDouble in interface DataInput

Specified by:

readDouble in class SliceInput

readSlice

public Slice readSlice(int length)

Description copied from class: SliceInput

Returns a new slice of this buffer's sub-region starting at the current position and increases the position by the size of the new slice (= length). The new slice could be either COMPACT or NOT_COMPACT.

Specified by:

readSlice in class SliceInput

Parameters:

length - the size of the new slice

Returns:

the newly created slice

readBytes

public void readBytes(Slice destination,
 int destinationIndex,
 int length)

Description copied from class: SliceInput

Transfers this buffer's data to the specified destination starting at the current position and increases the position by the number of the transferred bytes (= length).

Specified by:

readBytes in class SliceInput

destinationIndex - the first index of the destination

length - the number of bytes to transfer

read

public int read(byte[] destination,
 int destinationIndex,
 int length)

Specified by:

read in class SliceInput

readBytes

public void readBytes(byte[] destination,
 int destinationIndex,
 int length)

Description copied from class: SliceInput

Transfers this buffer's data to the specified destination starting at the current position and increases the position by the number of the transferred bytes (= length).

Specified by:

readBytes in class SliceInput

destinationIndex - the first index of the destination

length - the number of bytes to transfer

readBytes

public void readBytes(OutputStream out,
 int length)
               throws IOException

Description copied from class: SliceInput

Transfers this buffer's data to the specified stream starting at the current position.

Specified by:

readBytes in class SliceInput

length - the number of bytes to transfer

Throws:

IOException - if the specified stream threw an exception during I/O

skip

public long skip(long length)

Specified by:

skip in class SliceInput

skipBytes

public int skipBytes(int length)

Specified by:

skipBytes in interface DataInput

Specified by:

skipBytes in class SliceInput

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class SliceInput

getRetainedSize

public long getRetainedSize()

Description copied from class: SliceInput

Approximate number of bytes retained by this instance.

Specified by:

getRetainedSize in class SliceInput

toString

public String toString()

Overrides:

toString in class Object