private static List<ConfigChangeAction> modifyActions(List<VespaConfigChangeAction> result,
                                                          List<ServiceInfo> services,
                                                          String docTypeName) {
        return result.stream()
                     .map(action -> action.modifyAction("Document type '" + docTypeName + "': " + action.getMessage(),
                                                        services, docTypeName))
                     .collect(Collectors.toList());
    }
Validates the changes between all current and next indexed search clusters in a vespa model.

@author geirst
config-model/src/main/java/com/yahoo/vespa/model/application/validation/change/IndexedSearchClusterChangeValidator.java