org.apache.http.nio.entity
Interface HttpAsyncContentProducer

All Superinterfaces:

Closeable

All Known Implementing Classes:

EntityAsyncContentProducer, NByteArrayEntity, NFileEntity, NStringEntity

public interface HttpAsyncContentProducer
extends Closeable

HttpAsyncContentProducer is a callback interface whose methods get invoked to stream out message content to a non-blocking HTTP connection.

Since:

4.2

Method Summary

boolean	isRepeatable() Determines whether or not this producer is capable of producing its content more than once.
void	produceContent(ContentEncoder encoder, IOControl ioControl) Invoked to write out a chunk of content to the ContentEncoder.

Methods inherited from interface java.io.Closeable

close

Method Detail

produceContent

void produceContent(ContentEncoder encoder,
                    IOControl ioControl)
                    throws IOException

Invoked to write out a chunk of content to the ContentEncoder. The IOControl interface can be used to suspend output event notifications if the entity is temporarily unable to produce more content.

When all content is finished, the producer MUST call ContentEncoder.complete(). Failure to do so may cause the entity to be incorrectly delimited.

Please note that the ContentEncoder object is not thread-safe and should only be used within the context of this method call. The IOControl object can be shared and used on other thread to resume output event notifications when more content is made available.

Parameters:

encoder - content encoder.

ioControl - I/O control of the underlying connection.

Throws:

IOException

isRepeatable

boolean isRepeatable()

Determines whether or not this producer is capable of producing its content more than once. Repeatable content producers are expected to be able to recreate their content even after having been closed.