org.apache.nifi.distributed.cache.client

Class CacheClientChannelPoolFactory

java.lang.Object

org.apache.nifi.distributed.cache.client.CacheClientChannelPoolFactory

public class CacheClientChannelPoolFactory
extends Object

Factory for construction of new ChannelPool, used by distributed cache clients to invoke service methods. Cache clients include the NiFi services DistributedSetCacheClientService and DistributedMapCacheClientService.

Field Summary

Fields

Modifier and Type	Field and Description
private static int	MAX_PENDING_ACQUIRES
private int	maxConnections

Constructor Summary

Constructors

Constructor and Description
CacheClientChannelPoolFactory()

Method Summary

Modifier and Type	Method and Description
io.netty.channel.pool.ChannelPool	createChannelPool(String hostname, int port, int timeoutMillis, SSLContextService sslContextService, VersionNegotiatorFactory factory) Instantiate a new netty pool of channels to be used for distributed cache communications
void	setMaxConnections(int maxConnections) Set Maximum Connections for Channel Pool

Methods inherited from class java.lang.Object

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

Field Detail

MAX_PENDING_ACQUIRES

private static final int MAX_PENDING_ACQUIRES

See Also:

Constant Field Values

maxConnections

private int maxConnections

Constructor Detail

CacheClientChannelPoolFactory

public CacheClientChannelPoolFactory()

Method Detail

setMaxConnections

public void setMaxConnections(int maxConnections)

Set Maximum Connections for Channel Pool

Parameters:

maxConnections - Maximum Number of connections defaults to available processors multiplied by 2

createChannelPool

public io.netty.channel.pool.ChannelPool createChannelPool(String hostname,
                                                           int port,
                                                           int timeoutMillis,
                                                           SSLContextService sslContextService,
                                                           VersionNegotiatorFactory factory)

Instantiate a new netty pool of channels to be used for distributed cache communications

Parameters:

hostname - the network name / IP address of the server running the distributed cache service

port - the port on which the distributed cache service is running

timeoutMillis - the network timeout associated with requests to the service

sslContextService - the SSL context (if any) associated with requests to the service; if not specified, communications will not be encrypted

factory - creator of object used to broker the version of the distributed cache protocol with the service

Returns:

a channel pool object from which Channel objects may be obtained