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 com.google.gson.FieldNamingPolicy;
24 import com.google.gson.Gson;
25 import com.google.gson.GsonBuilder;
27 import java.lang.invoke.MethodHandles;
28 import java.util.ArrayList;
29 import java.util.List;
31 import org.json.JSONArray;
32 import org.json.JSONException;
33 import org.json.JSONObject;
34 import org.oransc.policyagent.configuration.RicConfig;
35 import org.oransc.policyagent.repository.Policy;
36 import org.slf4j.Logger;
37 import org.slf4j.LoggerFactory;
39 import reactor.core.publisher.Flux;
40 import reactor.core.publisher.Mono;
42 public class SdncOnapA1Client implements A1Client {
43 private static final String URL_PREFIX = "/A1-ADAPTER-API:";
45 private static final Logger logger = LoggerFactory.getLogger(MethodHandles.lookup().lookupClass());
47 private final String a1ControllerUsername;
48 private final String a1ControllerPassword;
49 private final RicConfig ricConfig;
50 private final AsyncRestClient restClient;
52 private static Gson gson = new GsonBuilder() //
53 .setFieldNamingPolicy(FieldNamingPolicy.LOWER_CASE_WITH_DASHES) //
56 public SdncOnapA1Client(RicConfig ricConfig, String baseUrl, String username, String password) {
57 this(ricConfig, username, password, new AsyncRestClient(baseUrl + "/restconf/operations"));
58 if (logger.isDebugEnabled()) {
59 logger.debug("SdnrOnapA1Client for ric: {}, a1ControllerBaseUrl: {}", ricConfig.name(), baseUrl);
63 public SdncOnapA1Client(RicConfig ricConfig, String username, String password, AsyncRestClient restClient) {
64 this.ricConfig = ricConfig;
65 this.a1ControllerUsername = username;
66 this.a1ControllerPassword = password;
67 this.restClient = restClient;
71 public Mono<List<String>> getPolicyTypeIdentities() {
72 SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
73 .nearRtRicId(ricConfig.baseUrl()) //
75 String inputJsonString = createInputJsonString(inputParams);
76 logger.debug("POST getPolicyTypeIdentities inputJsonString = {}", inputJsonString);
79 .postWithAuthHeader(URL_PREFIX + "getPolicyTypes", inputJsonString, a1ControllerUsername,
80 a1ControllerPassword) //
81 .flatMap(response -> getValueFromResponse(response, "policy-type-id-list")) //
82 .flatMap(this::parseJsonArrayOfString);
86 public Mono<List<String>> getPolicyIdentities() {
87 return getPolicyTypeIdentities() //
88 .flatMapMany(types -> Flux.fromIterable(types)) //
89 .flatMap(type -> getPolicyIdentities(type)) //
90 .flatMap(policyIds -> Flux.fromIterable(policyIds)) //
94 public Mono<List<String>> getPolicyIdentities(String policyTypeId) {
95 SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
96 .nearRtRicId(ricConfig.baseUrl()) //
97 .policyTypeId(policyTypeId) //
99 String inputJsonString = createInputJsonString(inputParams);
100 logger.debug("POST getPolicyIdentities inputJsonString = {}", inputJsonString);
103 .postWithAuthHeader(URL_PREFIX + "getPolicyInstances", inputJsonString, a1ControllerUsername,
104 a1ControllerPassword) //
105 .flatMap(response -> getValueFromResponse(response, "policy-instance-id-list")) //
106 .flatMap(this::parseJsonArrayOfString);
110 public Mono<String> getPolicyTypeSchema(String policyTypeId) {
111 SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
112 .nearRtRicId(ricConfig.baseUrl()) //
113 .policyTypeId(policyTypeId) //
115 String inputJsonString = createInputJsonString(inputParams);
116 logger.debug("POST getPolicyType inputJsonString = {}", inputJsonString);
119 .postWithAuthHeader(URL_PREFIX + "getPolicyType", inputJsonString, a1ControllerUsername,
120 a1ControllerPassword) //
121 .flatMap(response -> getValueFromResponse(response, "policy-type")) //
122 .flatMap(this::extractPolicySchema);
126 public Mono<String> putPolicy(Policy policy) {
127 SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
128 .nearRtRicId(ricConfig.baseUrl()) //
129 .policyTypeId(policy.type().name()) //
130 .policyInstanceId(policy.id()) //
131 .policyInstance(policy.json()) //
132 .properties(new ArrayList<String>()) //
134 String inputJsonString = createInputJsonString(inputParams);
135 logger.debug("POST putPolicy inputJsonString = {}", inputJsonString);
137 return restClient.postWithAuthHeader(URL_PREFIX + "createPolicyInstance", inputJsonString,
138 a1ControllerUsername, a1ControllerPassword);
141 public Mono<String> deletePolicyByIds(String policyTypeId, String policyId) {
142 SdncOnapAdapterInput inputParams = ImmutableSdncOnapAdapterInput.builder() //
143 .nearRtRicId(ricConfig.baseUrl()) //
144 .policyTypeId(policyTypeId) //
145 .policyInstanceId(policyId) //
147 String inputJsonString = createInputJsonString(inputParams);
148 logger.debug("POST deletePolicy inputJsonString = {}", inputJsonString);
150 return restClient.postWithAuthHeader(URL_PREFIX + "deletePolicyInstance", inputJsonString,
151 a1ControllerUsername, a1ControllerPassword);
155 public Mono<String> deletePolicy(Policy policy) {
156 return deletePolicyByIds(policy.type().name(), policy.id());
160 public Flux<String> deleteAllPolicies() {
161 return getPolicyTypeIdentities() //
162 .flatMapMany(types -> Flux.fromIterable(types)) //
163 .flatMap(typeId -> deletePoliciesForType(typeId)); //
167 public Mono<A1ProtocolType> getProtocolVersion() {
168 return getPolicyTypeIdentities() //
169 .flatMap(x -> Mono.just(A1ProtocolType.SDNC_ONAP));
173 public Mono<String> getPolicyStatus(Policy policy) {
174 return Mono.error(new Exception("Status not implemented in the controller"));
177 private Mono<String> getValueFromResponse(String response, String key) {
178 logger.debug("A1 client: response = {}", response);
180 JSONObject outputJson = new JSONObject(response);
181 JSONObject responseParams = outputJson.getJSONObject("output");
182 if (!responseParams.has(key)) {
183 return Mono.just("");
185 String value = responseParams.get(key).toString();
186 return Mono.just(value);
187 } catch (JSONException ex) { // invalid json
188 return Mono.error(ex);
192 private Mono<List<String>> parseJsonArrayOfString(String inputString) {
194 List<String> arrayList = new ArrayList<>();
195 if (inputString.isEmpty()) {
196 return Mono.just(arrayList);
198 JSONArray jsonArray = new JSONArray(inputString);
199 for (int i = 0; i < jsonArray.length(); i++) {
200 arrayList.add(jsonArray.getString(i));
202 logger.debug("A1 client: received list = {}", arrayList);
203 return Mono.just(arrayList);
204 } catch (JSONException ex) { // invalid json
205 return Mono.error(ex);
209 private Mono<String> extractPolicySchema(String inputString) {
211 JSONObject jsonObject = new JSONObject(inputString);
212 JSONObject schemaObject = jsonObject.getJSONObject("policySchema");
213 String schemaString = schemaObject.toString();
214 return Mono.just(schemaString);
215 } catch (JSONException ex) { // invalid json
216 return Mono.error(ex);
220 private Flux<String> deletePoliciesForType(String typeId) {
221 return getPolicyIdentities(typeId) //
222 .flatMapMany(policyIds -> Flux.fromIterable(policyIds)) //
223 .flatMap(policyId -> deletePolicyByIds(typeId, policyId)); //
226 private String createInputJsonString(SdncOnapAdapterInput inputParams) {
227 JSONObject inputJson = new JSONObject();
228 inputJson.put("input", new JSONObject(gson.toJson(inputParams)));
229 return inputJson.toString();