2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2018 Nokia.
8 * Modifications Copyright (c) 2019 Samsung
9 * ================================================================================
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
14 * http://www.apache.org/licenses/LICENSE-2.0
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 * ============LICENSE_END=========================================================
24 package org.onap.so.bpmn.infrastructure.pnf.dmaap;
26 import com.google.gson.JsonArray;
27 import com.google.gson.JsonElement;
28 import com.google.gson.JsonObject;
29 import com.google.gson.JsonParser;
30 import java.util.ArrayList;
31 import java.util.List;
32 import java.util.Optional;
33 import java.util.Spliterator;
35 public final class JsonUtilForPnfCorrelationId {
37 private static final String JSON_PNF_CORRELATION_ID_FIELD_NAME = "correlationId";
39 private JsonUtilForPnfCorrelationId() {
40 throw new IllegalStateException("Utility class");
43 static List<String> parseJsonToGelAllPnfCorrelationId(String json) {
44 JsonElement je = new JsonParser().parse(json);
45 JsonArray array = je.getAsJsonArray();
46 List<String> list = new ArrayList<>();
47 Spliterator<JsonElement> spliterator = array.spliterator();
48 spliterator.forEachRemaining(jsonElement -> handleEscapedCharacters(jsonElement)
49 .ifPresent(jsonObject -> getPnfCorrelationId(jsonObject)
50 .ifPresent(pnfCorrelationId -> list.add(pnfCorrelationId))));
54 private static Optional<JsonObject> handleEscapedCharacters(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> getPnfCorrelationId(JsonObject jsonObject) {
62 if (jsonObject.has(JSON_PNF_CORRELATION_ID_FIELD_NAME)) {
63 return Optional.ofNullable(jsonObject.get(JSON_PNF_CORRELATION_ID_FIELD_NAME).getAsString());
65 return Optional.empty();