[keycloak-dev] [AS7 Adapter] KeycloakAuthenticatorValve invoked too early

[Matthias Wessendorf]

Hello,

trying to integrate the Keycloak "server" into my own JAX-RS application
(for the integration with the UnifiedPush Server). I started w/ a simple
app.

Generally I am doing something similar to what the LiveOak folks do:
I create leverage the Admin realm, using Java APIs:
https://github.com/liveoak-io/liveoak/blob/master/modules/keycloak/src/main/java/io/liveoak/keycloak/KeycloakServer.java#L72-L104


Now, to get rid of the 'keycloak.json' file for the AS7 adapter, I tried
the following, inside of the constructor of my JAX-RS Application class
(which extends KeycloakApplication):

....
final AdapterConfig config = new AdapterConfig();

config.setRealm(adminRealm.getName());
config.set......
......

final ObjectMapper om = new ObjectMapper();
String json = null;
try {
    json = om.writeValueAsString(config);
} catch (IOException e) {
    e.printStackTrace();
}

servletContext.setInitParameter(AdapterConstants.AUTH_DATA_PARAM_NAME,
json);
....


However, that happens too late (a ServletContextListener is too late as
well). This line of code:
https://github.com/keycloak/keycloak/blob/master/integration/as7-eap6/adapter/src/main/java/org/keycloak/adapters/as7/KeycloakAuthenticatorValve.java#L75

is invoked before the constructor of my JAX-RS Application class (which
extends KeycloakApplication); same with a context listener.


I am wondering what's the best way to provide the "keycloak.json" content,
using Java APIs ?


Greetings,
Matthias



-- 
Matthias Wessendorf

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