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

Class AbstractCharAsyncEntityProducer

java.lang.Object

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

All Implemented Interfaces:

EntityDetails, AsyncDataProducer, AsyncEntityProducer, ResourceHolder

Direct Known Subclasses:

StringAsyncEntityProducer

@Contract(threading=SAFE_CONDITIONAL)
public abstract class AbstractCharAsyncEntityProducer
extends java.lang.Object
implements AsyncEntityProducer

Abstract text entity content producer.

Since:

5.0

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
(package private) static class	AbstractCharAsyncEntityProducer.State

Field Summary

Fields

Modifier and Type	Field	Description
private java.nio.ByteBuffer	bytebuf
private java.nio.charset.CharsetEncoder	charsetEncoder
private ContentType	contentType
private static java.nio.CharBuffer	EMPTY
private int	fragmentSizeHint
private java.util.concurrent.locks.ReentrantLock	lock
private AbstractCharAsyncEntityProducer.State	state

Constructor Summary

Constructors

Constructor	Description
AbstractCharAsyncEntityProducer(int bufferSize, int fragmentSizeHint, ContentType contentType)

Method Summary

Modifier and Type	Method	Description
int	available()	Returns the number of bytes immediately available for output.
protected abstract int	availableData()	Returns the number of bytes immediately available for output.
private void	flush(StreamChannel<java.nio.ByteBuffer> channel)
java.lang.String	getContentEncoding()	Gets content encoding of this entity, if known.
long	getContentLength()	Gets length of this entity, if known.
java.lang.String	getContentType()	Gets content type of this entity, if known.
java.util.Set<java.lang.String>	getTrailerNames()	Gets the preliminary declaration of trailing headers.
boolean	isChunked()	Tests the chunked transfer hint for this entity.
void	produce(DataStreamChannel channel)	Triggered to signal the ability of the underlying data channel to accept more data.
protected abstract void	produceData(StreamChannel<java.nio.CharBuffer> channel)	Triggered to signal the ability of the underlying char channel to accept more data.
void	releaseResources()
(package private) void	streamEnd(StreamChannel<java.nio.ByteBuffer> channel)
(package private) int	writeData(StreamChannel<java.nio.ByteBuffer> channel, java.nio.CharBuffer src)

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.AsyncEntityProducer

failed, isRepeatable

Field Detail

EMPTY

private static final java.nio.CharBuffer EMPTY

bytebuf

private final java.nio.ByteBuffer bytebuf

fragmentSizeHint

private final int fragmentSizeHint

contentType

private final ContentType contentType

charsetEncoder

private final java.nio.charset.CharsetEncoder charsetEncoder

lock

private final java.util.concurrent.locks.ReentrantLock lock

state

private volatile AbstractCharAsyncEntityProducer.State state

Constructor Detail

AbstractCharAsyncEntityProducer

public AbstractCharAsyncEntityProducer(int bufferSize,
                                       int fragmentSizeHint,
                                       ContentType contentType)

Method Detail

flush

private void flush(StreamChannel<java.nio.ByteBuffer> channel)
            throws java.io.IOException

Throws:

java.io.IOException

writeData

final int writeData(StreamChannel<java.nio.ByteBuffer> channel,
                    java.nio.CharBuffer src)
             throws java.io.IOException

Throws:

java.io.IOException

streamEnd

final void streamEnd(StreamChannel<java.nio.ByteBuffer> channel)
              throws java.io.IOException

Throws:

java.io.IOException

availableData

protected abstract int availableData()

Returns the number of bytes immediately available for output. This method can be used as a hint to control output events of the underlying I/O session.

Returns:

the number of bytes immediately available for output

produceData

protected abstract void produceData(StreamChannel<java.nio.CharBuffer> channel)
                             throws java.io.IOException

Triggered to signal the ability of the underlying char channel to accept more data. The data producer can choose to write data immediately inside the call or asynchronously at some later point.

StreamChannel passed to this method is threading-safe.

Parameters:

channel - the data channel capable to accepting more data.

Throws:

java.io.IOException - in case of an I/O error.

getContentType

public final java.lang.String getContentType()

Description copied from interface: EntityDetails

Gets content type of this entity, if known.

Specified by:

getContentType in interface EntityDetails

Returns:

the content type of this entity, may be null.

getContentEncoding

public java.lang.String getContentEncoding()

Description copied from interface: EntityDetails

Gets content encoding of this entity, if known.

Specified by:

getContentEncoding in interface EntityDetails

Returns:

the content encoding of this entity, may be null.

getContentLength

public long getContentLength()

Description copied from interface: EntityDetails

Gets length of this entity, if known.

Specified by:

getContentLength in interface EntityDetails

Returns:

the length of this entity, may be 0.

isChunked

public boolean isChunked()

Description copied from interface: EntityDetails

Tests the chunked transfer hint for this entity.

The behavior of wrapping entities is implementation dependent, but should respect the primary purpose.

Specified by:

isChunked in interface EntityDetails

Returns:

the chunked transfer hint for this entity.

getTrailerNames

public java.util.Set<java.lang.String> getTrailerNames()

Description copied from interface: EntityDetails

Gets the preliminary declaration of trailing headers.

Specified by:

getTrailerNames in interface EntityDetails

Returns:

the preliminary declaration of trailing headers.

available

public final int available()

Description copied from interface: AsyncDataProducer

Returns the number of bytes immediately available for output. This method can be used as a hint to control output events of the underlying I/O session.

Please note this method should return zero if the data producer is unable to produce any more data, in which case AsyncDataProducer.produce(DataStreamChannel) method will not get triggered. The producer can resume writing out data asynchronously once more data becomes available or request output readiness events with DataStreamChannel.requestOutput().

Specified by:

available in interface AsyncDataProducer

Returns:

the number of bytes immediately available for output

See Also:

AsyncDataProducer.produce(DataStreamChannel), DataStreamChannel.requestOutput()

produce

public final void produce(DataStreamChannel channel)
                   throws java.io.IOException

Description copied from interface: AsyncDataProducer

Triggered to signal the ability of the underlying data channel to accept more data. The data producer can choose to write data immediately inside the call or asynchronously at some later point.

Please note this method gets triggered only if AsyncDataProducer.available() returns a positive value.

Specified by:

produce in interface AsyncDataProducer

Parameters:

channel - the data channel capable of accepting more data.

Throws:

java.io.IOException - in case of an I/O error.

See Also:

AsyncDataProducer.available()

releaseResources

public void releaseResources()

Specified by:

releaseResources in interface ResourceHolder