Package org.apache.hc.core5.reactive
Class ReactiveServerExchangeHandler
- java.lang.Object
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- org.apache.hc.core5.reactive.ReactiveServerExchangeHandler
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- All Implemented Interfaces:
AsyncDataConsumer
,AsyncDataExchangeHandler
,AsyncDataProducer
,AsyncServerExchangeHandler
,ResourceHolder
public final class ReactiveServerExchangeHandler extends java.lang.Object implements AsyncServerExchangeHandler
An implementation ofAsyncServerExchangeHandler
designed to work with reactive streams.- Since:
- 5.0
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Field Summary
Fields Modifier and Type Field Description private DataStreamChannel
channel
private ReactiveDataConsumer
requestConsumer
private ReactiveRequestProcessor
requestProcessor
private java.util.concurrent.atomic.AtomicReference<ReactiveDataProducer>
responseProducer
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Constructor Summary
Constructors Constructor Description ReactiveServerExchangeHandler(ReactiveRequestProcessor requestProcessor)
Creates aReactiveServerExchangeHandler
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
available()
Returns the number of bytes immediately available for output.void
consume(java.nio.ByteBuffer src)
Triggered to pass incoming data to the data consumer.void
failed(java.lang.Exception cause)
Triggered to signal a failure in data processing.void
handleRequest(HttpRequest request, EntityDetails entityDetails, ResponseChannel responseChannel, HttpContext context)
Processes the actual HTTP request.void
produce(DataStreamChannel channel)
Triggered to signal the ability of the underlying data channel to accept more data.void
releaseResources()
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.
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Field Detail
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requestProcessor
private final ReactiveRequestProcessor requestProcessor
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responseProducer
private final java.util.concurrent.atomic.AtomicReference<ReactiveDataProducer> responseProducer
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requestConsumer
private final ReactiveDataConsumer requestConsumer
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channel
private volatile DataStreamChannel channel
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Constructor Detail
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ReactiveServerExchangeHandler
public ReactiveServerExchangeHandler(ReactiveRequestProcessor requestProcessor)
Creates aReactiveServerExchangeHandler
.- Parameters:
requestProcessor
- theReactiveRequestProcessor
instance to invoke when the request is ready to be handled.
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Method Detail
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handleRequest
public void handleRequest(HttpRequest request, EntityDetails entityDetails, ResponseChannel responseChannel, HttpContext context) throws HttpException, java.io.IOException
Description copied from interface:AsyncServerExchangeHandler
Processes the actual HTTP request. The handler can choose to send response messages immediately inside the call or asynchronously at some later point.- Specified by:
handleRequest
in interfaceAsyncServerExchangeHandler
- Parameters:
request
- the actual request.entityDetails
- the request entity details ornull
if the request does not enclose an entity.responseChannel
- the response channel.context
- the actual execution context.- Throws:
HttpException
java.io.IOException
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failed
public void failed(java.lang.Exception cause)
Description copied from interface:AsyncDataExchangeHandler
Triggered to signal a failure in data processing.- Specified by:
failed
in interfaceAsyncDataExchangeHandler
- Parameters:
cause
- the cause of the failure.
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updateCapacity
public 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 interfaceAsyncDataConsumer
- Parameters:
capacityChannel
- the channel for capacity updates.- Throws:
java.io.IOException
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consume
public 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 interfaceAsyncDataConsumer
- Parameters:
src
- data source.- Throws:
java.io.IOException
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streamEnd
public 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 interfaceAsyncDataConsumer
- Parameters:
trailers
- data stream trailers.- Throws:
HttpException
java.io.IOException
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available
public 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.- Specified by:
available
in interfaceAsyncDataProducer
- Returns:
- the number of bytes immediately available for output
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produce
public 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.- Specified by:
produce
in interfaceAsyncDataProducer
- Parameters:
channel
- the data channel capable to accepting more data.- Throws:
java.io.IOException
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releaseResources
public void releaseResources()
- Specified by:
releaseResources
in interfaceResourceHolder
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