private static ImmutableMap<String, InterfaceConfig> createDiscoGapicInterfaceConfigMap( DiscoApiModel model, ConfigProto configProto, LanguageSettingsProto languageSettings, ResourceNameMessageConfigs messageConfigs, ImmutableMap<String, ResourceNameConfig> resourceNameConfigs, TargetLanguage language) { ImmutableMap.Builder<String, InterfaceConfig> interfaceConfigMap = ImmutableMap.builder(); for (InterfaceConfigProto interfaceConfigProto : configProto.getInterfacesList()) { String interfaceNameOverride = languageSettings.getInterfaceNamesMap().get(interfaceConfigProto.getName()); DiscoGapicInterfaceConfig interfaceConfig = DiscoGapicInterfaceConfig.createInterfaceConfig( model, language, interfaceConfigProto, interfaceNameOverride, messageConfigs, resourceNameConfigs); if (interfaceConfig == null) { continue; } interfaceConfigMap.put(interfaceConfigProto.getName(), interfaceConfig); } if (model.getDiagCollector().getErrorCount() > 0) { return null; } else { return interfaceConfigMap.build(); } }