Hi all,
I’ve read how to extend Keycloak via SPI but it seems that there is no provider interface for my specific use case, as I am not looking to extend Keycloak but provide a custom method for Infinispan. I get the feeling that my jar, put into the standalone/deployments folder, is not loaded because it does not implement an SPI. I am looking for a way to make Keycloak load my custom jar file so I can reference my custom key 2 string mapper in in the following way:
/subsystem=infinispan/cache-container=keycloak/distributed-cache=sessions/store=jdbc:add(data-source="KeycloakDS", dialect="POSTGRES", fetch-state="true", passivation="true", preload="true", purge="false", shared="true", properties={"key2StringMapper" => "org.foo.keymappers.FooTwoWayKey2StringMapper"})
In order to use a database as a infinispan session cache store I need this custom key to string mapper that is able to transform a UUID to a string and vice versa to persist the sessions in a db table. Nothing fancy but it is not yet available in the Infinispan version used in Keycloak. This feature is available in the current Infinispan master branch though (https://github.com/infinispan/infinispan/pull/8736/files).
How does my jar file have to be constructed, especially the contents of the META-INF folder and where to place it ideally? Can I patch any of the modules.xml files to load it? I am fairly new to the java world, so I might be missing something simple here…
I tried loading it via the deployments folder, adding it as a module, even a global module…
module add --name=org.pace --resources=/opt/jboss/keycloak/standalone/deployments/stringmapper.jar
/subsystem=ee:list-add(name=global-modules, value={name=org.foo, slot=main})
Whatever I tried so far always resulted in
12:39:34,610 ERROR [org.infinispan.persistence.jdbc.stringbased.JdbcStringBasedStore] (ServerService Thread Pool -- 65) Trying to instantiate org.foo.FooTwoWayKey2StringMapper, however it failed due to java.lang.ClassNotFoundException
Any help is appreciated!