org.apache.iotdb.tsfile.utils

Class PublicBAOS

java.lang.Object

java.io.OutputStream

java.io.ByteArrayOutputStream

org.apache.iotdb.tsfile.utils.PublicBAOS

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public class PublicBAOS
extends ByteArrayOutputStream

A subclass extending ByteArrayOutputStream. It's used to return the byte array directly. Note that the size of byte array is large than actual size of valid contents, thus it's used cooperating with size() or capacity = size

Field Summary

Fields inherited from class java.io.ByteArrayOutputStream

buf, count

Constructor Summary

Constructors

Constructor and Description
PublicBAOS()
PublicBAOS(int size)

Method Summary

Modifier and Type	Method and Description
byte[]	getBuf() get current all bytes data
void	reset() It's not a thread-safe method.
int	size() The synchronized keyword in this function is intentionally removed.
void	truncate(int size)
void	writeTo(OutputStream out) It's not a thread-safe method.

Methods inherited from class java.io.ByteArrayOutputStream

close, toByteArray, toString, toString, toString, write, write

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Constructor Detail

PublicBAOS

public PublicBAOS()

PublicBAOS

public PublicBAOS(int size)

Method Detail

getBuf

public byte[] getBuf()

get current all bytes data

Returns:

all bytes data

writeTo

public void writeTo(OutputStream out)
             throws IOException

It's not a thread-safe method. Override the super class's implementation. Remove the synchronized key word, to save the synchronization overhead.

Writes the complete contents of this byte array output stream to the specified output stream argument, as if by calling the output stream's write method using out.write(buf, 0, count).

Overrides:

writeTo in class ByteArrayOutputStream

Parameters:

out - the output stream to which to write the data.

Throws:

IOException - if an I/O error occurs.

reset

public void reset()

It's not a thread-safe method. Override the super class's implementation. Remove the synchronized key word, to save the synchronization overhead.

Resets the count field of this byte array output stream to zero, so that all currently accumulated output in the output stream is discarded. The output stream can be used again, reusing the already allocated buffer space.

Overrides:

reset in class ByteArrayOutputStream

size

public int size()

The synchronized keyword in this function is intentionally removed. For details, see https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=173085039

Overrides:

size in class ByteArrayOutputStream

truncate

public void truncate(int size)