2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2018 Nokia.
8 * ================================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
20 * ============LICENSE_END=========================================================
23 package org.onap.so.bpmn.infrastructure.pnf.dmaap;
25 import com.google.gson.JsonArray;
26 import com.google.gson.JsonElement;
27 import com.google.gson.JsonObject;
28 import com.google.gson.JsonParser;
29 import java.util.ArrayList;
30 import java.util.List;
31 import java.util.Optional;
32 import java.util.Spliterator;
34 public final class JsonUtilForPnfCorrelationId {
36 private static final String JSON_PNF_CORRELATION_ID_FIELD_NAME = "pnfCorrelationId";
38 static List<String> parseJsonToGelAllPnfCorrelationId(String json) {
39 JsonElement je = new JsonParser().parse(json);
40 JsonArray array = je.getAsJsonArray();
41 List<String> list = new ArrayList<>();
42 Spliterator<JsonElement> spliterator = array.spliterator();
43 spliterator.forEachRemaining(jsonElement -> {
44 handleEscapedCharacters(jsonElement)
45 .ifPresent(jsonObject -> getPnfCorrelationId(jsonObject)
46 .ifPresent(pnfCorrelationId -> list.add(pnfCorrelationId)));
51 private static Optional<JsonObject> handleEscapedCharacters(JsonElement jsonElement) {
52 if (jsonElement.isJsonObject()) {
53 return Optional.ofNullable(jsonElement.getAsJsonObject());
55 return Optional.ofNullable(new JsonParser().parse(jsonElement.getAsString()).getAsJsonObject());
58 private static Optional<String> getPnfCorrelationId(JsonObject jsonObject) {
59 if (jsonObject.has(JSON_PNF_CORRELATION_ID_FIELD_NAME)) {
60 return Optional.ofNullable(jsonObject.get(JSON_PNF_CORRELATION_ID_FIELD_NAME).getAsString());
62 return Optional.empty();