Package org.apache.cassandra.io.util

Class BufferedDataOutputStreamPlus

java.lang.Object

java.io.OutputStream

org.apache.cassandra.io.util.DataOutputStreamPlus

org.apache.cassandra.io.util.BufferedDataOutputStreamPlus

All Implemented Interfaces:

Closeable, DataOutput, Flushable, AutoCloseable, DataOutputPlus

Direct Known Subclasses:

AsyncChannelOutputPlus, DataOutputBuffer, FileOutputStreamPlus, SequentialWriter

public class BufferedDataOutputStreamPlus
extends DataOutputStreamPlus

An implementation of the DataOutputStreamPlus interface using a ByteBuffer to stage writes before flushing them to an underlying channel. This class is completely thread unsafe.

Field Summary

Fields

Modifier and Type	Field	Description
protected ByteBuffer	buffer

Fields inherited from class org.apache.cassandra.io.util.DataOutputStreamPlus

channel

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	BufferedDataOutputStreamPlus(int size)
protected	BufferedDataOutputStreamPlus(ByteBuffer buffer)
	BufferedDataOutputStreamPlus(WritableByteChannel wbc)
	BufferedDataOutputStreamPlus(WritableByteChannel wbc, int bufferSize)
	BufferedDataOutputStreamPlus(WritableByteChannel channel, ByteBuffer buffer)

Method Summary

Modifier and Type	Method	Description
protected ByteBuffer	allocate(int size)
void	close()
protected void	doFlush(int count)
void	flush()
BufferedDataOutputStreamPlus	order(ByteOrder order)
void	write(byte[] b)
void	write(byte[] b, int off, int len)
void	write(int b)
void	write(ByteBuffer src)
void	writeBoolean(boolean v)
void	writeByte(int v)
void	writeBytes(String s)
void	writeChar(int v)
void	writeChars(String s)
void	writeDouble(double v)
void	writeFloat(float v)
void	writeInt(int v)
void	writeLong(long v)
void	writeMostSignificantBytes(long register, int bytes)	An efficient way to write the type bytes of a long
void	writeShort(int v)
void	writeUTF(String s)

Methods inherited from class org.apache.cassandra.io.util.DataOutputStreamPlus

newDefaultChannel, retrieveTemporaryBuffer

Methods inherited from class java.io.OutputStream

nullOutputStream

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.cassandra.io.util.DataOutputPlus

bytesLeftInPage, hasPosition, maxBytesInPage, paddedPosition, padToPageBoundary, position, write, writeUnsignedVInt, writeUnsignedVInt, writeUnsignedVInt32, writeVInt, writeVInt, writeVInt32

Field Details

buffer

protected ByteBuffer buffer

Constructor Details

BufferedDataOutputStreamPlus

public BufferedDataOutputStreamPlus(WritableByteChannel wbc)

BufferedDataOutputStreamPlus

public BufferedDataOutputStreamPlus(WritableByteChannel wbc,
 int bufferSize)

BufferedDataOutputStreamPlus

public BufferedDataOutputStreamPlus(WritableByteChannel channel,
 ByteBuffer buffer)

BufferedDataOutputStreamPlus

protected BufferedDataOutputStreamPlus(ByteBuffer buffer)

BufferedDataOutputStreamPlus

protected BufferedDataOutputStreamPlus(int size)

Method Details

allocate

protected ByteBuffer allocate(int size)

write

public void write(byte[] b)
           throws IOException

Specified by:

write in interface DataOutput

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(byte[] b,
 int off,
 int len)
           throws IOException

Specified by:

write in interface DataOutput

Overrides:

write in class OutputStream

Throws:

IOException

write

public void write(ByteBuffer src)
           throws IOException

Throws:

IOException

write

public void write(int b)
           throws IOException

Specified by:

write in interface DataOutput

Specified by:

write in class OutputStream

Throws:

IOException

writeBoolean

public void writeBoolean(boolean v)
                  throws IOException

Throws:

IOException

writeByte

public void writeByte(int v)
               throws IOException

Throws:

IOException

writeMostSignificantBytes

public void writeMostSignificantBytes(long register,
 int bytes)
                               throws IOException

Description copied from interface: DataOutputPlus

An efficient way to write the type bytes of a long

Parameters:

register - - the long value to be written

bytes - - the number of bytes the register occupies. Valid values are between 1 and 8 inclusive.

Throws:

IOException

writeShort

public void writeShort(int v)
                throws IOException

Throws:

IOException

writeChar

public void writeChar(int v)
               throws IOException

Throws:

IOException

writeInt

public void writeInt(int v)
              throws IOException

Throws:

IOException

writeLong

public void writeLong(long v)
               throws IOException

Throws:

IOException

writeFloat

public void writeFloat(float v)
                throws IOException

Throws:

IOException

writeDouble

public void writeDouble(double v)
                 throws IOException

Throws:

IOException

writeBytes

public void writeBytes(String s)
                throws IOException

Throws:

IOException

writeChars

public void writeChars(String s)
                throws IOException

Throws:

IOException

writeUTF

public void writeUTF(String s)
              throws IOException

Throws:

IOException

doFlush

@DontInline
protected void doFlush(int count)
                throws IOException

Throws:

IOException

flush

public void flush()
           throws IOException

Specified by:

flush in interface Flushable

Overrides:

flush in class OutputStream

Throws:

IOException

close

public void close()
           throws IOException

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

Overrides:

close in class OutputStream

Throws:

IOException

order

public BufferedDataOutputStreamPlus order(ByteOrder order)