org.opennms.netmgt.config.dao.common.impl

Class PollingJsonStoreReloadableConfigContainer<T>

java.lang.Object

org.opennms.netmgt.config.dao.common.impl.PollingJsonStoreReloadableConfigContainer<T>

All Implemented Interfaces:

ReloadableConfigContainer<T>

public class PollingJsonStoreReloadableConfigContainer<T>
extends Object
implements ReloadableConfigContainer<T>

An abstraction to contain a JAXB annotated XML document that has been marshalled to JSON and stored in a JsonStore.

This container caches a copy of the entity and keeps it up to date relative to the copy in the JSON store based on a fixed polling interval. Polling is only done lazily on calls to getConfig().

Constructor Summary

Constructors

Constructor and Description
PollingJsonStoreReloadableConfigContainer(JsonStore jsonStore, String key, String context, Class<T> entityClass)
PollingJsonStoreReloadableConfigContainer(JsonStore jsonStore, String key, String context, Class<T> entityClass, long pollingIntervalMs, io.github.resilience4j.retry.Retry retry)

Method Summary

Modifier and Type	Method and Description
T	getConfig()
void	reload() Instruct the container to reload the in-memory configuration from the backing configuration.

Methods inherited from class java.lang.Object

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

Constructor Detail

PollingJsonStoreReloadableConfigContainer

public PollingJsonStoreReloadableConfigContainer(JsonStore jsonStore,
                                                 String key,
                                                 String context,
                                                 Class<T> entityClass,
                                                 long pollingIntervalMs,
                                                 io.github.resilience4j.retry.Retry retry)

PollingJsonStoreReloadableConfigContainer

public PollingJsonStoreReloadableConfigContainer(JsonStore jsonStore,
                                                 String key,
                                                 String context,
                                                 Class<T> entityClass)

Method Detail

reload

public void reload()

Description copied from interface: ReloadableConfigContainer

Instruct the container to reload the in-memory configuration from the backing configuration. This may block if the backing configuration is not immediately available.

Specified by:

reload in interface ReloadableConfigContainer<T>

getConfig

public T getConfig()

Specified by:

getConfig in interface ReloadableConfigContainer<T>

Returns:

the in-memory copy of the configuration which may be reloaded as part of this request depending on the implementation