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

Class AtomicCacheEntryInboundAdapter<K,V>

java.lang.Object

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

Type Parameters:

K - the expected type of the service response key

V - the expected type of the service response value

All Implemented Interfaces:

InboundAdapter

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

Implementation of InboundAdapter where the service response payload is expected to be an AtomicCacheEntry, allowing for synchronized access to a given service cache entry.

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<V>	deserializer The deserializer to be used to construct the value from the service response object.
private InboundToken<V>	inboundToken The state of receipt of an individual service response token.
private K	key The key of the requested service map entry.
private AtomicCacheEntry<K,V,Long>	result The cache entry reassembled from the service response.
private Long	revision The cache revision of the requested object.

Constructor Summary

Constructors

Constructor and Description
AtomicCacheEntryInboundAdapter(K key, Deserializer<V> deserializer) 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.
AtomicCacheEntry<K,V,Long>	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

key

private final K key

The key of the requested service map entry.

deserializer

private final Deserializer<V> deserializer

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

byteBuf

private final io.netty.buffer.ByteBuf byteBuf

Container for bytes queued from the service response Channel.

inboundToken

private final InboundToken<V> inboundToken

The state of receipt of an individual service response token.

revision

private Long revision

The cache revision of the requested object.

result

private AtomicCacheEntry<K,V,Long> result

The cache entry reassembled from the service response.

Constructor Detail

AtomicCacheEntryInboundAdapter

public AtomicCacheEntryInboundAdapter(K key,
                                      Deserializer<V> deserializer)

Constructor.

Parameters:

key - the key of the requested service cache map entry

deserializer - the deserializer to be used to construct the service response map value

Method Detail

getResult

public AtomicCacheEntry<K,V,Long> 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