ru.yandex.clickhouse.response

Class FastByteArrayOutputStream

java.lang.Object

java.io.OutputStream

ru.yandex.clickhouse.response.FastByteArrayOutputStream

All Implemented Interfaces:

Closeable, Flushable, AutoCloseable

public final class FastByteArrayOutputStream
extends OutputStream

Not synchronized quick version of ByteArrayOutputStream

Constructor Summary

Constructors

Constructor and Description
FastByteArrayOutputStream() Creates a new byte array output stream.
FastByteArrayOutputStream(int size) Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.

Method Summary

Modifier and Type	Method and Description
void	close() Closing a ByteArrayOutputStream has no effect.
FastByteArrayInputStream	convertToInputStream() Creates InputStream using the same data that is written into this stream with no copying in memory
void	copyFrom(FastByteArrayInputStream source, int offset, int count) Copies data from input stream
void	copyTo(DataOutput dest)
void	copyTo(OutputStream dest)
byte[]	getBuffer()
void	reset()
int	size() Returns the current size of the buffer.
byte[]	toByteArray() returns inner array
ByteBuffer	toByteBuffer()
void	write(byte[] b, int off, int len) Writes len bytes from the specified byte array starting at offset off to this byte array output stream.
void	write(int b) Writes the specified byte to this byte array output stream.
void	writeTo(OutputStream output)

Methods inherited from class java.io.OutputStream

flush, write

Methods inherited from class java.lang.Object

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

Constructor Detail

FastByteArrayOutputStream

public FastByteArrayOutputStream()

Creates a new byte array output stream. The buffer capacity is initially 32 bytes, though its size increases if necessary.

FastByteArrayOutputStream

public FastByteArrayOutputStream(int size)

Creates a new byte array output stream, with a buffer capacity of the specified size, in bytes.

Parameters:

size - the initial size.

Throws:

IllegalArgumentException - if size is negative.

Method Detail

write

public void write(int b)

Writes the specified byte to this byte array output stream.

Specified by:

write in class OutputStream

Parameters:

b - the byte to be written.

write

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

Writes len bytes from the specified byte array starting at offset off to this byte array output stream.

Overrides:

write in class OutputStream

Parameters:

b - the data.

off - the start offset in the data.

len - the number of bytes to write.

toByteArray

public byte[] toByteArray()

returns inner array

Returns:

the current contents of this output stream, as a byte array.

writeTo

public void writeTo(OutputStream output)
             throws IOException

Throws:

IOException

size

public int size()

Returns the current size of the buffer.

Returns:

the value of the count field, which is the number of valid bytes in this output stream.

close

public void close()
           throws IOException

Closing a ByteArrayOutputStream has no effect. The methods in this class can be called after the stream has been closed without generating an IOException.

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Overrides:

close in class OutputStream

Throws:

IOException

copyFrom

public void copyFrom(FastByteArrayInputStream source,
                     int offset,
                     int count)

Copies data from input stream

Parameters:

source - source stream

offset - offset in the source

count - number of bytes to copy

copyTo

public void copyTo(OutputStream dest)
            throws IOException

Throws:

IOException

copyTo

public void copyTo(DataOutput dest)
            throws IOException

Throws:

IOException

convertToInputStream

public FastByteArrayInputStream convertToInputStream()

Creates InputStream using the same data that is written into this stream with no copying in memory

Returns:

a input stream contained all bytes recorded in a current stream

toByteBuffer

public ByteBuffer toByteBuffer()

getBuffer

public byte[] getBuffer()

reset

public void reset()