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/*-
* ========================LICENSE_START=================================
* ONAP : ccsdk oran
* ======================================================================
* Copyright (C) 2020 Nordix Foundation. All rights reserved.
* ======================================================================
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ========================LICENSE_END===================================
*/
package org.onap.ccsdk.oran.a1policymanagementservice.clients;
import com.google.gson.FieldNamingPolicy;
import com.google.gson.Gson;
import com.google.gson.GsonBuilder;
import com.google.gson.JsonElement;
import com.google.gson.JsonObject;
import java.lang.invoke.MethodHandles;
import java.util.ArrayList;
import java.util.List;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import reactor.core.publisher.Flux;
import reactor.core.publisher.Mono;
/**
* Common json functionality used by the CCSDK A1 Adapter clients
*/
@SuppressWarnings("java:S1192") // Same text in several traces
class A1AdapterJsonHelper {
private static Gson gson = new GsonBuilder() //
.setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_DASHES) //
.create();
private static final String OUTPUT = "output";
private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
private A1AdapterJsonHelper() {}
public static Flux<String> parseJsonArrayOfString(String inputString) {
try {
List<String> arrayList = new ArrayList<>();
if (!inputString.isEmpty()) {
JSONArray jsonArray = new JSONArray(inputString);
for (int i = 0; i < jsonArray.length(); i++) {
Object value = jsonArray.get(i);
arrayList.add(value.toString());
}
}
return Flux.fromIterable(arrayList);
} catch (JSONException ex) { // invalid json
logger.debug("Invalid json {}", ex.getMessage());
return Flux.error(ex);
}
}
public static <T> String createInputJsonString(T params) {
JsonElement paramsJson = gson.toJsonTree(params);
JsonObject jsonObj = new JsonObject();
jsonObj.add("input", paramsJson);
return gson.toJson(jsonObj);
}
public static <T> String createOutputJsonString(T params) {
JsonElement paramsJson = gson.toJsonTree(params);
JsonObject jsonObj = new JsonObject();
jsonObj.add(OUTPUT, paramsJson);
return gson.toJson(jsonObj);
}
public static Mono<JSONObject> getOutput(String response) {
try {
JSONObject outputJson = new JSONObject(response);
JSONObject responseParams = outputJson.getJSONObject(OUTPUT);
return Mono.just(responseParams);
} catch (JSONException ex) { // invalid json
logger.debug("Invalid json {}", ex.getMessage());
return Mono.error(ex);
}
}
public static Mono<String> getValueFromResponse(String response, String key) {
return getOutput(response) //
.map(responseParams -> {
if (!responseParams.has(key)) {
return "";
}
return responseParams.get(key).toString();
});
}
public static Mono<String> extractPolicySchema(String inputString) {
try {
JSONObject jsonObject = new JSONObject(inputString);
JSONObject schemaObject = jsonObject.getJSONObject("policySchema");
String schemaString = schemaObject.toString();
return Mono.just(schemaString);
} catch (JSONException ex) { // invalid json
logger.debug("Invalid json {}", ex.getMessage());
return Mono.error(ex);
}
}
}
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