Package org.apache.hc.core5.http.nio.entity

Class AbstractCharDataConsumer

java.lang.Object

org.apache.hc.core5.http.nio.entity.AbstractCharDataConsumer

All Implemented Interfaces:

AsyncDataConsumer, ResourceHolder

Direct Known Subclasses:

AbstractCharAsyncEntityConsumer

public abstract class AbstractCharDataConsumer
extends java.lang.Object
implements AsyncDataConsumer

Abstract text data consumer.

Since:

5.0

Field Summary

Fields

Modifier and Type	Field	Description
private java.nio.ByteBuffer	byteBuffer
private java.nio.CharBuffer	charBuffer
private CharCodingConfig	charCodingConfig
private java.nio.charset.Charset	charset
private java.nio.charset.CharsetDecoder	charsetDecoder
protected static int	DEF_BUF_SIZE
private static java.nio.ByteBuffer	EMPTY_BIN

Constructor Summary

Constructors

Modifier	Constructor	Description
	AbstractCharDataConsumer()
protected	AbstractCharDataConsumer(int bufSize, CharCodingConfig charCodingConfig)

Method Summary

Modifier and Type	Method	Description
protected abstract int	capacityIncrement()	Triggered to obtain the capacity increment.
private void	checkResult(java.nio.charset.CoderResult result)
protected abstract void	completed()	Triggered to signal completion of data processing.
void	consume(java.nio.ByteBuffer src)	Triggered to pass incoming data to the data consumer.
protected abstract void	data(java.nio.CharBuffer src, boolean endOfStream)	Triggered to pass incoming data packet to the data consumer.
private void	doDecode(boolean endOfStream)
private java.nio.charset.CharsetDecoder	getCharsetDecoder()
protected void	setCharset(java.nio.charset.Charset charset)
void	streamEnd(java.util.List<? extends Header> trailers)	Triggered to signal termination of the data stream.
void	updateCapacity(CapacityChannel capacityChannel)	Triggered to signal ability of the underlying data stream to receive data capacity update.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.hc.core5.http.nio.ResourceHolder

releaseResources

Field Detail

DEF_BUF_SIZE

protected static final int DEF_BUF_SIZE

See Also:

Constant Field Values

EMPTY_BIN

private static final java.nio.ByteBuffer EMPTY_BIN

charBuffer

private final java.nio.CharBuffer charBuffer

charCodingConfig

private final CharCodingConfig charCodingConfig

charset

private volatile java.nio.charset.Charset charset

charsetDecoder

private volatile java.nio.charset.CharsetDecoder charsetDecoder

byteBuffer

private volatile java.nio.ByteBuffer byteBuffer

Constructor Detail

AbstractCharDataConsumer

protected AbstractCharDataConsumer(int bufSize,
                                   CharCodingConfig charCodingConfig)

AbstractCharDataConsumer

public AbstractCharDataConsumer()

Method Detail

capacityIncrement

protected abstract int capacityIncrement()

Triggered to obtain the capacity increment.

Returns:

the number of bytes this consumer is prepared to process.

data

protected abstract void data(java.nio.CharBuffer src,
                             boolean endOfStream)
                      throws java.io.IOException

Triggered to pass incoming data packet to the data consumer.

Parameters:

src - the data packet.

endOfStream - flag indicating whether this data packet is the last in the data stream.

Throws:

java.io.IOException

completed

protected abstract void completed()
                           throws java.io.IOException

Triggered to signal completion of data processing.

Throws:

java.io.IOException

setCharset

protected final void setCharset(java.nio.charset.Charset charset)

updateCapacity

public final void updateCapacity(CapacityChannel capacityChannel)
                          throws java.io.IOException

Description copied from interface: AsyncDataConsumer

Triggered to signal ability of the underlying data stream to receive data capacity update. The data consumer can choose to write data immediately inside the call or asynchronously at some later point.

Specified by:

updateCapacity in interface AsyncDataConsumer

Parameters:

capacityChannel - the channel for capacity updates.

Throws:

java.io.IOException

checkResult

private void checkResult(java.nio.charset.CoderResult result)
                  throws java.io.IOException

Throws:

java.io.IOException

doDecode

private void doDecode(boolean endOfStream)
               throws java.io.IOException

Throws:

java.io.IOException

getCharsetDecoder

private java.nio.charset.CharsetDecoder getCharsetDecoder()

consume

public final void consume(java.nio.ByteBuffer src)
                   throws java.io.IOException

Description copied from interface: AsyncDataConsumer

Triggered to pass incoming data to the data consumer. The consumer must consume the entire content of the data buffer. The consumer must stop incrementing its capacity on the capacity channel if it is unable to accept more data. Once the data consumer has handled accumulated data or allocated more intermediate storage it can update its capacity information on the capacity channel.

Specified by:

consume in interface AsyncDataConsumer

Parameters:

src - data source.

Throws:

java.io.IOException

streamEnd

public final void streamEnd(java.util.List<? extends Header> trailers)
                     throws HttpException,
                            java.io.IOException

Description copied from interface: AsyncDataConsumer

Triggered to signal termination of the data stream.

Specified by:

streamEnd in interface AsyncDataConsumer

Parameters:

trailers - data stream trailers.

Throws:

HttpException

java.io.IOException