2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ============LICENSE_END=========================================================
21 package org.openecomp.mso.bpmn.infrastructure.pnf.dmaap;
23 import com.google.gson.JsonArray;
24 import com.google.gson.JsonElement;
25 import com.google.gson.JsonObject;
26 import com.google.gson.JsonParser;
27 import java.util.ArrayList;
28 import java.util.List;
29 import java.util.Optional;
30 import java.util.Spliterator;
32 final class JsonUtilForCorrelationId {
34 private static final String JSON_HEADER = "pnfRegistrationFields";
35 private static final String JSON_CORRELATION_ID_FIELD_NAME = "correlationId";
37 static List<String> parseJsonToGelAllCorrelationId(String json) {
38 List<String> list = new ArrayList<>();
39 JsonElement je = new JsonParser().parse(json);
40 if (je.isJsonObject()) {
41 getCorrelationIdFromJsonObject(je.getAsJsonObject()).ifPresent(corr -> list.add(corr));
43 JsonArray array = je.getAsJsonArray();
44 Spliterator<JsonElement> spliterator = array.spliterator();
45 spliterator.forEachRemaining(jsonElement -> {
46 parseJsonElementToJsonObject(jsonElement)
47 .ifPresent(jsonObject -> getCorrelationIdFromJsonObject(jsonObject)
48 .ifPresent(correlationId -> list.add(correlationId)));
54 private static Optional<JsonObject> parseJsonElementToJsonObject(JsonElement jsonElement) {
55 if (jsonElement.isJsonObject()) {
56 return Optional.ofNullable(jsonElement.getAsJsonObject());
58 return Optional.ofNullable(new JsonParser().parse(jsonElement.getAsString()).getAsJsonObject());
61 private static Optional<String> getCorrelationIdFromJsonObject(JsonObject jsonObject) {
62 if (jsonObject.has(JSON_HEADER)) {
63 JsonObject jo = jsonObject.getAsJsonObject(JSON_HEADER);
64 if (jo.has(JSON_CORRELATION_ID_FIELD_NAME)) {
65 return Optional.ofNullable(jo.get(JSON_CORRELATION_ID_FIELD_NAME).getAsString());
68 return Optional.empty();