private String lookUpFeedName(final long refSteamId) {
        // Ref store is not specific to one user, so we need to see all feeds.
        // Ref lookups will take care of perm checks
        final String feedName = securityContext.asProcessingUserResult(() ->
                NullSafe.getAsOptional(metaService.getMeta(refSteamId),
                                Meta::getFeedName)
                        .orElseThrow(() -> new RuntimeException("No meta record found for meta ID " + refSteamId)));
        LOGGER.debug("Looked up feedName '{}' for refStreamId: {}", feedName, refSteamId);
        return feedName;
    }
Get all ref stores keyed by feed name

@return Map of feedName => {@link RefDataOffHeapStore}
stroom-pipeline/src/main/java/stroom/pipeline/refdata/store/offheapstore/DelegatingRefDataOffHeapStore.java