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

Class InboundToken<T>

java.lang.Object

org.apache.nifi.distributed.cache.client.adapter.InboundToken<T>

Type Parameters:

T - the expected type of the service response token

public class InboundToken<T>
extends Object

Tracker for receipt of incoming tokens from an InputStream.

Field Summary

Fields

Modifier and Type	Field and Description
private boolean	isComplete Flag indicating that all bytes needed to deserialize a token have been received.
private Integer	length The length of the byte stream expected from the service response.
private T	value The received service method response value.

Constructor Summary

Constructors

Constructor and Description
InboundToken() Constructor.

Method Summary

Modifier and Type	Method and Description
T	getValue()
boolean	isComplete()
void	reset() Initialize this object to receive bytes from a stream to be deserialized.
void	update(io.netty.buffer.ByteBuf byteBuf, Deserializer<T> deserializer) Update the state of the received bytes to be deserialized.

Methods inherited from class java.lang.Object

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

Field Detail

isComplete

private boolean isComplete

Flag indicating that all bytes needed to deserialize a token have been received.

length

private Integer length

The length of the byte stream expected from the service response.

value

private T value

The received service method response value. Depending on the data type and the deserializer implementation, it is possible to deserialize a null value from a stream.

Constructor Detail

InboundToken

public InboundToken()

Constructor.

Method Detail

reset

public void reset()

Initialize this object to receive bytes from a stream to be deserialized.

update

public void update(io.netty.buffer.ByteBuf byteBuf,
                   Deserializer<T> deserializer)
            throws IOException

Update the state of the received bytes to be deserialized.

Parameters:

byteBuf - the intermediate buffer used to cache bytes received from the service

deserializer - the deserializer to be used to construct the service response object

Throws:

IOException - on serialization failures

isComplete

public boolean isComplete()

Returns:

true, iff the service response byte stream for the token has been completely received

getValue

public T getValue()

Returns:

the service method response value