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 @Override
    public void registerCmHandles(final List<String> cmHandles) {
        final CmHandleOperation cmHandleOperation = new CmHandleOperation();
        cmHandleOperation.setDmiPlugin(dmiPluginProperties.getDmiServiceName());
        final List<CreatedCmHandle> createdCmHandleList = new ArrayList<>();
        for (final String cmHandle: cmHandles) {
            final CreatedCmHandle createdCmHandle = new CreatedCmHandle();
            createdCmHandle.setCmHandle(cmHandle);
            createdCmHandleList.add(createdCmHandle);
        }
        cmHandleOperation.setCreatedCmHandles(createdCmHandleList);
        final String cmHandlesJson;
        try {
            cmHandlesJson = objectMapper.writeValueAsString(cmHandleOperation);
        } catch (final JsonProcessingException e) {
            log.error("Parsing error occurred while converting cm-handles to JSON {}", cmHandles);
            throw new DmiException("Internal Server Error.",
                    "Parsing error occurred while converting given cm-handles object list to JSON ");
        }
        final ResponseEntity<String> responseEntity = ncmpRestClient.registerCmHandlesWithNcmp(cmHandlesJson);
        if (!(responseEntity.getStatusCode() == HttpStatus.CREATED)) {
            throw new CmHandleRegistrationException(responseEntity.getBody());
        }
    }

/**
     * Register a cmHandle with NCMP using a HTTP call.
     * @param jsonData json data
     * @return the response entity
     */
    public ResponseEntity<String> registerCmHandlesWithNcmp(final String jsonData) {
        final var ncmpRegistrationUrl = buildNcmpRegistrationUrl();
        final var httpHeaders = new HttpHeaders();
        httpHeaders.setBasicAuth(cpsProperties.getAuthUsername(), cpsProperties.getAuthPassword());
        httpHeaders.set(HttpHeaders.CONTENT_TYPE, MediaType.APPLICATION_JSON_VALUE);
        final var httpEntity = new HttpEntity<>(jsonData, httpHeaders);
        return restTemplate.postForEntity(ncmpRegistrationUrl, httpEntity, String.class);
    }

    private String buildNcmpRegistrationUrl() {
        return UriComponentsBuilder
            .fromHttpUrl(cpsProperties.getBaseUrl())
            .path(cpsProperties.getDmiRegistrationUrl())
            .toUriString();
    }

 /**
     * Update DMI Plugin Registration (used for first registration also).
     * @param restDmiPluginRegistration the registration data
     */
    @Override
    public ResponseEntity<Void> updateDmiPluginRegistration(
        final @Valid RestDmiPluginRegistration restDmiPluginRegistration) {
        final DmiPluginRegistration dmiPluginRegistration =
            convertRestObjectToJavaApiObject(restDmiPluginRegistration);
        networkCmProxyDataService.updateDmiPluginRegistration(dmiPluginRegistration);
        return new ResponseEntity<>(HttpStatus.CREATED);
    }

 @Override
    public void updateDmiPluginRegistration(final DmiPluginRegistration dmiPluginRegistration) {
        try {
            final List<PersistenceCmHandle> persistenceCmHandles =
                new ArrayList<>();
            for (final CmHandle cmHandle: dmiPluginRegistration.getCreatedCmHandles()) {
                final PersistenceCmHandle persistenceCmHandle = new PersistenceCmHandle();
                persistenceCmHandle.setDmiServiceName(dmiPluginRegistration.getDmiPlugin());
                persistenceCmHandle.setId(cmHandle.getCmHandle());
                persistenceCmHandle.setAdditionalProperties(cmHandle.getCmHandleProperties());
                persistenceCmHandles.add(persistenceCmHandle);
            }
            final PersistenceCmHandlesList persistenceCmHandlesList = new PersistenceCmHandlesList();
            persistenceCmHandlesList.setCmHandles(persistenceCmHandles);
            final String cmHandleJsonData = objectMapper.writeValueAsString(persistenceCmHandlesList);
            cpsDataService.saveListNodeData(NCMP_DATASPACE_NAME, NCMP_ANCHOR_NAME, NCMP_DATA_TOP_PATH,
                cmHandleJsonData);
        } catch (final JsonProcessingException e) {
            throw new DataValidationException(
                "Parsing error occurred while processing DMI Plugin Registration" + dmiPluginRegistration, e
                .getMessage(), e);
        }
    }