2 * ========================LICENSE_START=================================
5 * Copyright (C) 2019 Nordix Foundation
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.oransc.policyagent.clients;
23 import java.lang.invoke.MethodHandles;
24 import java.util.ArrayList;
25 import java.util.List;
27 import org.json.JSONArray;
28 import org.json.JSONException;
29 import org.json.JSONObject;
30 import org.oransc.policyagent.configuration.RicConfig;
31 import org.oransc.policyagent.repository.Policy;
32 import org.slf4j.Logger;
33 import org.slf4j.LoggerFactory;
35 import reactor.core.publisher.Flux;
36 import reactor.core.publisher.Mono;
38 public class SdnrOnapA1Client implements A1Client {
39 private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
40 private static final String A1_CONTROLLER_URL = "http://sdnc_controller_container:8181/restconf/operations";
41 private static final String A1_CONTROLLER_USERNAME = "admin";
42 private static final String A1_CONTROLLER_PASSWORD = "Kp8bJ4SXszM0WXlhak3eHlcse2gAw84vaoGGmJvUy2U";
44 private final RicConfig ricConfig;
45 private final AsyncRestClient restClient;
47 public SdnrOnapA1Client(RicConfig ricConfig) {
48 this.ricConfig = ricConfig;
49 this.restClient = new AsyncRestClient(A1_CONTROLLER_URL);
50 logger.debug("SdnrOnapA1Client for ric: {}", this.ricConfig.name());
54 public Mono<List<String>> getPolicyTypeIdentities() {
55 JSONObject paramsJson = new JSONObject();
56 paramsJson.put("near-rt-ric-id", ricConfig.baseUrl());
57 String inputJsonString = createInputJsonString(paramsJson);
58 logger.debug("POST getPolicyTypeIdentities inputJsonString = {}", inputJsonString);
61 .postWithAuthHeader("/A1-ADAPTER-API:getPolicyTypes", inputJsonString, A1_CONTROLLER_USERNAME,
62 A1_CONTROLLER_PASSWORD) //
63 .flatMap(response -> getValueFromResponse(response, "policy-type-id-list")) //
64 .flatMap(this::parseJsonArrayOfString);
68 public Mono<List<String>> getPolicyIdentities() {
69 return getPolicyTypeIdentities() //
70 .flatMapMany(types -> Flux.fromIterable(types)) //
71 .flatMap(type -> getPolicyIdentities(type)) //
72 .flatMap(policyIds -> Flux.fromIterable(policyIds)) //
76 public Mono<List<String>> getPolicyIdentities(String policyTypeId) {
77 JSONObject paramsJson = new JSONObject();
78 paramsJson.put("near-rt-ric-id", ricConfig.baseUrl());
79 paramsJson.put("policy-type-id", policyTypeId);
80 String inputJsonString = createInputJsonString(paramsJson);
81 logger.debug("POST getPolicyIdentities inputJsonString = {}", inputJsonString);
84 .postWithAuthHeader("/A1-ADAPTER-API:getPolicyInstances", inputJsonString, A1_CONTROLLER_USERNAME,
85 A1_CONTROLLER_PASSWORD) //
86 .flatMap(response -> getValueFromResponse(response, "policy-instance-id-list")) //
87 .flatMap(this::parseJsonArrayOfString);
91 public Mono<String> getPolicyTypeSchema(String policyTypeId) {
92 JSONObject paramsJson = new JSONObject();
93 paramsJson.put("near-rt-ric-id", ricConfig.baseUrl());
94 paramsJson.put("policy-type-id", policyTypeId);
95 String inputJsonString = createInputJsonString(paramsJson);
96 logger.debug("POST getPolicyType inputJsonString = {}", inputJsonString);
99 .postWithAuthHeader("/A1-ADAPTER-API:getPolicyType", inputJsonString, A1_CONTROLLER_USERNAME,
100 A1_CONTROLLER_PASSWORD) //
101 .flatMap(response -> getValueFromResponse(response, "policy-type")) //
102 .flatMap(this::extractPolicySchema);
106 public Mono<String> putPolicy(Policy policy) {
107 JSONObject paramsJson = new JSONObject();
108 paramsJson.put("near-rt-ric-id", ricConfig.baseUrl());
109 paramsJson.put("policy-instance-id", policy.id());
110 paramsJson.put("policy-type-id", policy.type().name());
111 paramsJson.put("policy-instance", policy.json());
112 paramsJson.put("properties", new JSONArray());
113 String inputJsonString = createInputJsonString(paramsJson);
114 logger.debug("POST putPolicy inputJsonString = {}", inputJsonString);
116 return restClient.postWithAuthHeader("/A1-ADAPTER-API:createPolicyInstance", inputJsonString,
117 A1_CONTROLLER_USERNAME, A1_CONTROLLER_PASSWORD);
120 public Mono<String> deletePolicy(String policyTypeId, String policyId) {
121 JSONObject paramsJson = new JSONObject();
122 paramsJson.put("near-rt-ric-id", ricConfig.baseUrl());
123 paramsJson.put("policy-instance-id", policyId);
124 paramsJson.put("policy-type-id", policyTypeId);
125 String inputJsonString = createInputJsonString(paramsJson);
126 logger.debug("POST deletePolicy inputJsonString = {}", inputJsonString);
128 return restClient.postWithAuthHeader("/A1-ADAPTER-API:deletePolicyInstance", inputJsonString,
129 A1_CONTROLLER_USERNAME, A1_CONTROLLER_PASSWORD);
133 public Mono<String> deletePolicy(Policy policy) {
134 return deletePolicy(policy.type().name(), policy.id());
138 public Flux<String> deleteAllPolicies() {
139 return getPolicyTypeIdentities() //
140 .flatMapMany(types -> Flux.fromIterable(types)) //
141 .flatMap(typeId -> deletePoliciesForType(typeId)); //
144 private Flux<String> deletePoliciesForType(String typeId) {
145 return getPolicyIdentities(typeId) //
146 .flatMapMany(policyIds -> Flux.fromIterable(policyIds)) //
147 .flatMap(policyId -> deletePolicy(typeId, policyId)); //
151 public Mono<A1ProtocolType> getProtocolVersion() {
152 return getPolicyTypeIdentities() //
153 .flatMap(x -> Mono.just(A1ProtocolType.SDNR_ONAP));
156 private String createInputJsonString(JSONObject paramsJson) {
157 JSONObject inputJson = new JSONObject();
158 inputJson.put("input", paramsJson);
159 return inputJson.toString();
162 private Mono<String> getValueFromResponse(String response, String key) {
163 logger.debug("A1 client: response = {}", response);
165 JSONObject outputJson = new JSONObject(response);
166 JSONObject responseParams = outputJson.getJSONObject("output");
167 String value = responseParams.get(key).toString();
168 return Mono.just(value);
169 } catch (JSONException ex) { // invalid json
170 return Mono.error(ex);
174 private Mono<List<String>> parseJsonArrayOfString(String inputString) {
176 List<String> arrayList = new ArrayList<>();
177 JSONArray jsonArray = new JSONArray(inputString);
178 for (int i = 0; i < jsonArray.length(); i++) {
179 arrayList.add(jsonArray.getString(i));
181 logger.debug("A1 client: received list = {}", arrayList);
182 return Mono.just(arrayList);
183 } catch (JSONException ex) { // invalid json
184 return Mono.error(ex);
188 private Mono<String> extractPolicySchema(String inputString) {
190 JSONObject jsonObject = new JSONObject(inputString);
191 JSONObject schemaObject = jsonObject.getJSONObject("policySchema");
192 String schemaString = schemaObject.toString();
193 return Mono.just(schemaString);
194 } catch (JSONException ex) { // invalid json
195 return Mono.error(ex);