com.google.common.io

Class ByteSink

java.lang.Object

com.google.common.io.ByteSink

public abstract class ByteSink
extends Object

A destination to which bytes can be written, such as a file. Unlike an OutputStream, a ByteSink is not an open, stateful stream that can be written to and closed. Instead, it is an immutable supplier of OutputStream instances.

ByteSink provides two kinds of methods:

• Methods that return a stream: These methods should return a new, independent instance each time they are called. The caller is responsible for ensuring that the returned stream is closed.
• Convenience methods: These are implementations of common operations that are typically implemented by opening a stream using one of the methods in the first category, doing something and finally closing the stream or channel that was opened.

Since:

14.0

Author:

Colin Decker

Constructor Summary

Constructors

Constructor and Description
ByteSink()

Method Summary

Methods

Modifier and Type	Method and Description
CharSink	asCharSink(Charset charset) Returns a CharSink view of this ByteSink that writes characters to this sink as bytes encoded with the given charset.
BufferedOutputStream	openBufferedStream() Opens a new BufferedOutputStream for writing to this sink.
abstract OutputStream	openStream() Opens a new OutputStream for writing to this sink.
void	write(byte[] bytes) Writes all the given bytes to this sink.
long	writeFrom(InputStream input) Writes all the bytes from the given InputStream to this sink.

Methods inherited from class java.lang.Object

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

Constructor Detail

ByteSink

public ByteSink()

Method Detail

asCharSink

public CharSink asCharSink(Charset charset)

Returns a CharSink view of this ByteSink that writes characters to this sink as bytes encoded with the given charset.

openStream

public abstract OutputStream openStream()
                                 throws IOException

Opens a new OutputStream for writing to this sink. This method should return a new, independent stream each time it is called.

The caller is responsible for ensuring that the returned stream is closed.

Throws:

IOException - if an I/O error occurs in the process of opening the stream

openBufferedStream

public BufferedOutputStream openBufferedStream()
                                        throws IOException

Opens a new BufferedOutputStream for writing to this sink. This method should return a new, independent stream each time it is called.

The caller is responsible for ensuring that the returned stream is closed.

Throws:

IOException - if an I/O error occurs in the process of opening the stream

write

public void write(byte[] bytes)
           throws IOException

Writes all the given bytes to this sink.

Throws:

IOException - if an I/O occurs in the process of writing to this sink

writeFrom

public long writeFrom(InputStream input)
               throws IOException

Writes all the bytes from the given InputStream to this sink. Does not close input.

Throws:

IOException - if an I/O occurs in the process of reading from input or writing to this sink