org.apache.nifi.distributed.cache.server

Class DistributedCacheServer

java.lang.Object

org.apache.nifi.components.AbstractConfigurableComponent

org.apache.nifi.controller.AbstractControllerService

org.apache.nifi.distributed.cache.server.DistributedCacheServer

All Implemented Interfaces:

ConfigurableComponent, ControllerService

Direct Known Subclasses:

DistributedMapCacheServer, DistributedSetCacheServer

public abstract class DistributedCacheServer
extends AbstractControllerService

Field Summary

Fields

Modifier and Type	Field and Description
private CacheServer	cacheServer
static PropertyDescriptor	EVICTION_POLICY
static String	EVICTION_STRATEGY_FIFO
static String	EVICTION_STRATEGY_LFU
static String	EVICTION_STRATEGY_LRU
static PropertyDescriptor	MAX_CACHE_ENTRIES
static PropertyDescriptor	PERSISTENCE_PATH
static PropertyDescriptor	PORT
static PropertyDescriptor	SSL_CONTEXT_SERVICE

Constructor Summary

Constructors

Constructor and Description
DistributedCacheServer()

Method Summary

Modifier and Type	Method and Description
protected abstract CacheServer	createCacheServer(ConfigurationContext context)
protected void	finalize()
int	getPort()
protected List<PropertyDescriptor>	getSupportedPropertyDescriptors()
void	shutdownServer()
void	startServer(ConfigurationContext context)

Methods inherited from class org.apache.nifi.controller.AbstractControllerService

getControllerServiceLookup, getIdentifier, getLogger, getProperties, getProperty, init, initialize, onConfigurationChange

Methods inherited from class org.apache.nifi.components.AbstractConfigurableComponent

customValidate, equals, getPropertyDescriptor, getPropertyDescriptors, getSupportedDynamicPropertyDescriptor, hashCode, onPropertyModified, toString, validate

Methods inherited from class java.lang.Object

clone, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.nifi.components.ConfigurableComponent

getPropertyDescriptor, getPropertyDescriptors, onPropertyModified, validate

Field Detail

EVICTION_STRATEGY_LFU

public static final String EVICTION_STRATEGY_LFU

See Also:

Constant Field Values

EVICTION_STRATEGY_LRU

public static final String EVICTION_STRATEGY_LRU

See Also:

Constant Field Values

EVICTION_STRATEGY_FIFO

public static final String EVICTION_STRATEGY_FIFO

See Also:

Constant Field Values

PORT

public static final PropertyDescriptor PORT

SSL_CONTEXT_SERVICE

public static final PropertyDescriptor SSL_CONTEXT_SERVICE

MAX_CACHE_ENTRIES

public static final PropertyDescriptor MAX_CACHE_ENTRIES

EVICTION_POLICY

public static final PropertyDescriptor EVICTION_POLICY

PERSISTENCE_PATH

public static final PropertyDescriptor PERSISTENCE_PATH

cacheServer

private volatile CacheServer cacheServer

Constructor Detail

DistributedCacheServer

public DistributedCacheServer()

Method Detail

getSupportedPropertyDescriptors

protected List<PropertyDescriptor> getSupportedPropertyDescriptors()

Overrides:

getSupportedPropertyDescriptors in class AbstractConfigurableComponent

startServer

@OnEnabled
public void startServer(ConfigurationContext context)
                            throws IOException

Throws:

IOException

shutdownServer

@OnDisabled
public void shutdownServer()
                                throws IOException

Throws:

IOException

finalize

protected void finalize()
                 throws Throwable

Overrides:

finalize in class Object

Throws:

Throwable

getPort

public int getPort()

Returns:

the port that the server is listening on, or -1 if the server has not been started

createCacheServer

protected abstract CacheServer createCacheServer(ConfigurationContext context)