org.apache.nifi.distributed.cache.client.adapter

Class MapInboundAdapter<K,V>

java.lang.Object

org.apache.nifi.distributed.cache.client.adapter.MapInboundAdapter<K,V>

Type Parameters:

K - the expected type of the service response keys

V - the expected type of the service response values

All Implemented Interfaces:

InboundAdapter

public class MapInboundAdapter<K,V>
extends Object
implements InboundAdapter

Implementation of InboundAdapter where the service response payload is expected to be a map of keys of type K to values of type V.

Field Summary

Fields

Modifier and Type	Field and Description
private io.netty.buffer.ByteBuf	byteBuf Container for bytes queued from the service response Channel.
private Deserializer<K>	deserializerK The deserializer to be used to construct the keys in the service response map.
private Deserializer<V>	deserializerV The deserializer to be used to construct the values from the service response object.
private InboundToken<K>	inboundTokenK The state of receipt of an individual service response token.
private InboundToken<V>	inboundTokenV The state of receipt of an individual service response token.
private Map<K,V>	result The entries received in the service response.
private Integer	size The count of map entries expected in the service response.

Constructor Summary

Constructors

Constructor and Description
MapInboundAdapter(Deserializer<K> deserializerK, Deserializer<V> deserializerV, Map<K,V> result) Constructor.

Method Summary

Modifier and Type	Method and Description
void	dequeue() Parse the received content into a form suitable for supplying to the remote method caller.
Map<K,V>	getResult()
boolean	isComplete() Check for receipt of all response content expected from server.
void	queue(byte[] bytes) Add Channel content to a queue for later processing

Methods inherited from class java.lang.Object

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

Field Detail

deserializerK

private final Deserializer<K> deserializerK

The deserializer to be used to construct the keys in the service response map.

deserializerV

private final Deserializer<V> deserializerV

The deserializer to be used to construct the values from the service response object.

byteBuf

private final io.netty.buffer.ByteBuf byteBuf

Container for bytes queued from the service response Channel.

inboundTokenK

private final InboundToken<K> inboundTokenK

The state of receipt of an individual service response token.

inboundTokenV

private final InboundToken<V> inboundTokenV

The state of receipt of an individual service response token.

size

private Integer size

The count of map entries expected in the service response.

result

private final Map<K,V> result

The entries received in the service response.

Constructor Detail

MapInboundAdapter

public MapInboundAdapter(Deserializer<K> deserializerK,
                         Deserializer<V> deserializerV,
                         Map<K,V> result)

Constructor.

Parameters:

deserializerK - the deserializer to be used to construct the service response map keys

deserializerV - the deserializer to be used to construct the service response map values

result - container for the map entries received in the service response

Method Detail

getResult

public Map<K,V> getResult()

Returns:

the service method response value

isComplete

public boolean isComplete()

Description copied from interface: InboundAdapter

Check for receipt of all response content expected from server.

Specified by:

isComplete in interface InboundAdapter

Returns:

true iff the server response has been completely received

queue

public void queue(byte[] bytes)

Description copied from interface: InboundAdapter

Add Channel content to a queue for later processing

Specified by:

queue in interface InboundAdapter

Parameters:

bytes - the remote content to queue

dequeue

public void dequeue()
             throws IOException

Description copied from interface: InboundAdapter

Parse the received content into a form suitable for supplying to the remote method caller.

Specified by:

dequeue in interface InboundAdapter

Throws:

IOException - on failure parsing the content