org.apache.beam.sdk.util

Class ExposedByteArrayOutputStream

java.lang.Object

java.io.OutputStream

java.io.ByteArrayOutputStream

org.apache.beam.sdk.util.ExposedByteArrayOutputStream

All Implemented Interfaces:

java.io.Closeable, java.io.Flushable, java.lang.AutoCloseable

@Internal
public class ExposedByteArrayOutputStream
extends java.io.ByteArrayOutputStream

ByteArrayOutputStream special cased to treat writes of a single byte-array specially. When calling toByteArray() after writing only one byte[] using writeAndOwn(byte[]), it will return that array directly.

Field Summary

Fields inherited from class java.io.ByteArrayOutputStream

buf, count

Constructor Summary

Constructors

Constructor and Description
ExposedByteArrayOutputStream()

Method Summary

Modifier and Type	Method and Description
void	reset()
byte[]	toByteArray()
void	write(byte[] b, int off, int len)
void	write(int b)
void	writeAndOwn(byte[] b) Write b to the stream and take the ownership of b.

Methods inherited from class java.io.ByteArrayOutputStream

close, size, toString, toString, toString, writeTo

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

ExposedByteArrayOutputStream

public ExposedByteArrayOutputStream()

Method Detail

writeAndOwn

public void writeAndOwn(byte[] b)
                 throws java.io.IOException

Write b to the stream and take the ownership of b. If the stream is empty, b itself will be used as the content of the stream and no content copy will be involved.

Note: After passing any byte array to this method, it must not be modified again.

Throws:

java.io.IOException

write

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

Overrides:

write in class java.io.ByteArrayOutputStream

write

public void write(int b)

Overrides:

write in class java.io.ByteArrayOutputStream

toByteArray

public byte[] toByteArray()

Overrides:

toByteArray in class java.io.ByteArrayOutputStream

reset

public void reset()

Overrides:

reset in class java.io.ByteArrayOutputStream