private static int getThreadPoolSize(ConfigserverConfig config) {
        return config.numRpcThreads() != 0 ? config.numRpcThreads() : 8;
    }
A provider for {@link RpcAuthorizer}. The instance provided is dependent on the configuration of the configserver.

@author bjorncs
configserver/src/main/java/com/yahoo/vespa/config/server/rpc/security/DefaultRpcAuthorizerProvider.java