io.aeron.cluster.client

Class EgressAdapter

java.lang.Object

io.aeron.cluster.client.EgressAdapter

All Implemented Interfaces:

FragmentHandler

public final class EgressAdapter
extends Object
implements FragmentHandler

Adapter for dispatching egress messages from a cluster to a EgressListener.

Constructor Summary

Constructors

Constructor and Description
EgressAdapter(EgressListener listener, long clusterSessionId, Subscription subscription, int fragmentLimit) Construct an adapter for cluster egress which consumes from the subscription and dispatches to the EgressListener.

Method Summary

Modifier and Type	Method and Description
void	onFragment(DirectBuffer buffer, int offset, int length, Header header) Callback for handling fragments of data being read from a log.
int	poll() Poll the egress subscription and dispatch assembled events to the EgressListener.

Methods inherited from class java.lang.Object

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

Constructor Detail

EgressAdapter

public EgressAdapter(EgressListener listener,
                     long clusterSessionId,
                     Subscription subscription,
                     int fragmentLimit)

Construct an adapter for cluster egress which consumes from the subscription and dispatches to the EgressListener.

Parameters:

listener - to dispatch events to.

clusterSessionId - for the egress.

subscription - over the egress stream.

fragmentLimit - to poll on each poll() operation.

Method Detail

poll

public int poll()

Poll the egress subscription and dispatch assembled events to the EgressListener.

Returns:

the number of fragments consumed.

onFragment

public void onFragment(DirectBuffer buffer,
                       int offset,
                       int length,
                       Header header)

Callback for handling fragments of data being read from a log.

Within this callback reentrant calls to the Aeron client are not permitted and will result in undefined behaviour.

Specified by:

onFragment in interface FragmentHandler

Parameters:

buffer - containing the data.

offset - at which the data begins.

length - of the data in bytes.

header - representing the metadata for the data.