2 * ========================LICENSE_START=================================
4 * ======================================================================
5 * Copyright (C) 2020 Nordix Foundation. 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.onap.ccsdk.oran.a1policymanagementservice.clients;
23 import com.google.gson.FieldNamingPolicy;
24 import com.google.gson.Gson;
25 import com.google.gson.GsonBuilder;
26 import com.google.gson.JsonElement;
27 import com.google.gson.JsonObject;
29 import java.lang.invoke.MethodHandles;
30 import java.util.ArrayList;
31 import java.util.List;
33 import org.json.JSONArray;
34 import org.json.JSONObject;
35 import org.slf4j.Logger;
36 import org.slf4j.LoggerFactory;
38 import reactor.core.publisher.Flux;
39 import reactor.core.publisher.Mono;
42 * Common json functionality used by the CCSDK A1 Adapter clients
44 @SuppressWarnings("java:S1192") // Same text in several traces
45 class A1AdapterJsonHelper {
46 private static Gson gson = new GsonBuilder() //
47 .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_DASHES) //
49 private static final String OUTPUT = "output";
50 private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
52 private A1AdapterJsonHelper() {}
54 public static Flux<String> parseJsonArrayOfString(String inputString) {
56 List<String> arrayList = new ArrayList<>();
57 if (!inputString.isEmpty()) {
58 JSONArray jsonArray = new JSONArray(inputString);
59 for (int i = 0; i < jsonArray.length(); i++) {
60 Object value = jsonArray.get(i);
61 arrayList.add(value.toString());
64 return Flux.fromIterable(arrayList);
65 } catch (Exception ex) { // invalid json
66 logger.debug("Invalid json {}", ex.getMessage());
67 return Flux.error(ex);
71 public static <T> String createInputJsonString(T params) {
72 JsonElement paramsJson = gson.toJsonTree(params);
73 JsonObject jsonObj = new JsonObject();
74 jsonObj.add("input", paramsJson);
75 return gson.toJson(jsonObj);
78 public static <T> String createOutputJsonString(T params) {
79 JsonElement paramsJson = gson.toJsonTree(params);
80 JsonObject jsonObj = new JsonObject();
81 jsonObj.add(OUTPUT, paramsJson);
82 return gson.toJson(jsonObj);
85 public static Mono<JSONObject> getOutput(String response) {
87 JSONObject outputJson = new JSONObject(response);
88 JSONObject responseParams = outputJson.getJSONObject(OUTPUT);
89 return Mono.just(responseParams);
90 } catch (Exception ex) { // invalid json
91 logger.debug("Invalid json {}", ex.getMessage());
92 return Mono.error(ex);
96 public static Mono<String> getValueFromResponse(String response, String key) {
97 return getOutput(response) //
98 .map(responseParams -> {
99 if (!responseParams.has(key)) {
102 return responseParams.get(key).toString();
106 public static Mono<String> extractPolicySchema(String inputString) {
108 JSONObject jsonObject = new JSONObject(inputString);
109 JSONObject schemaObject = jsonObject.getJSONObject("policySchema");
110 String schemaString = schemaObject.toString();
111 return Mono.just(schemaString);
112 } catch (Exception ex) { // invalid json
113 logger.debug("Invalid json {}", ex.getMessage());
114 return Mono.error(ex);