[infinispan-issues] [JBoss JIRA] (ISPN-5131) Deploy custom cache store to Infinispan Server

Deploy custom cache store to Infinispan Server ---------------------------------------------- Key: ISPN-5131 URL: https://issues.jboss.org/browse/ISPN-5131 Project: Infinispan Issue Type: Feature Request Components: Loaders and Stores, Server Reporter: Tristan Tarrant Assignee: Sebastian Łaskawiec Fix For: 7.2.0.Final h2. Overview Support the deployment and configuration of a custom cache store. h2. Client Perspective In order to create a deployable Cache Store the client will have to implement {{AdvancedLoadWriteStoreFactory}} (which will contain factory methods for creating {{AdvancedLoadWriteStore}}). Next, the factory will have to be annotated with {{@NamedFactory}} and placed into a jar together with proper entry of {{META-INF/services/org.infinispan.persistence.AdvancedLoadWriteStoreFactory}}. The last activity is to deploy given jar into Hotrod server. h2. Implementation overview The implementation is based on Deployable Filters and Converters. Currently all writers and loaders are instantiated in {{PersistenceManagerImpl#createLoadersAndWriters}}. This implementation will be modified to use {{CacheStoreFactoryRegistry}}, which will contain a list of {{CacheStoreFactories}}. One of the factories will be added by default - the local one (which will the same mechanism as we do now - {{Util.getInstance(classAnnotation)}}. Other {{CacheStoreFactories}} will be added after deployment scanning. h2. Implementation doubts and questions: * Should we expose a factory for {{AdvancedLoadWriteStore}} or should we include also {{ExternalStore}} (or even separate factory for {{CacheLoader}} and {{CacheWriter}}? ** YES, we should expose all of them. * How to ensure that deployment scanning has finished before creating instantiating {{AdvancedLoadWriteStore}}? ** Using {{org.infinispan.server.endpoint.subsystem.EndpointSubsystemAdd}}