2 * ============LICENSE_START=======================================================
3 * SdnrActorServiceProvider
4 * ================================================================================
5 * Copyright (C) 2018 Wipro Limited Intellectual Property. 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.policy.controlloop.actor.sdnr;
23 import com.google.common.collect.ImmutableList;
24 import com.google.common.collect.ImmutableMap;
26 import java.util.Collections;
27 import java.util.List;
29 import org.onap.policy.controlloop.ControlLoopOperation;
30 import org.onap.policy.controlloop.VirtualControlLoopEvent;
31 import org.onap.policy.controlloop.actorserviceprovider.spi.Actor;
32 import org.onap.policy.controlloop.policy.Policy;
33 import org.onap.policy.controlloop.policy.PolicyResult;
34 import org.onap.policy.sdnr.PciCommonHeader;
35 import org.onap.policy.sdnr.PciRequest;
36 import org.onap.policy.sdnr.PciRequestWrapper;
37 import org.onap.policy.sdnr.PciResponse;
38 import org.onap.policy.sdnr.PciResponseCode;
39 import org.onap.policy.sdnr.PciResponseWrapper;
41 import org.slf4j.Logger;
42 import org.slf4j.LoggerFactory;
44 public class SdnrActorServiceProvider implements Actor {
46 public static class Pair<A, B> {
47 public final A result;
48 public final B message;
50 public Pair(A result, B message) {
52 this.message = message;
55 public A getResult() {
59 public B getMessage() {
64 private static final Logger logger = LoggerFactory.getLogger(SdnrActorServiceProvider.class);
66 // Strings for targets
67 private static final String TARGET_VNF = "VNF";
69 // Strings for recipes
70 private static final String RECIPE_MODIFY = "ModifyConfig";
72 /* To be used in future releases when pci ModifyConfig is used */
73 private static final String SDNR_REQUEST_PARAMS = "request-parameters";
74 private static final String SDNR_CONFIG_PARAMS = "configuration-parameters";
76 private static final ImmutableList<String> recipes = ImmutableList.of(RECIPE_MODIFY);
77 private static final ImmutableMap<String, List<String>> targets = new ImmutableMap.Builder<String, List<String>>()
78 .put(RECIPE_MODIFY, ImmutableList.of(TARGET_VNF)).build();
79 private static final ImmutableMap<String, List<String>> payloads = new ImmutableMap.Builder<String, List<String>>()
80 .put(RECIPE_MODIFY, ImmutableList.of(SDNR_REQUEST_PARAMS, SDNR_CONFIG_PARAMS)).build();
83 public String actor() {
88 public List<String> recipes() {
89 return ImmutableList.copyOf(recipes);
93 public List<String> recipeTargets(String recipe) {
94 return ImmutableList.copyOf(targets.getOrDefault(recipe, Collections.emptyList()));
98 public List<String> recipePayloads(String recipe) {
99 return ImmutableList.copyOf(payloads.getOrDefault(recipe, Collections.emptyList()));
103 * Constructs an SDNR request conforming to the pci API. The actual request is
104 * constructed and then placed in a wrapper object used to send through DMAAP.
107 * the event that is reporting the alert for policy to perform an
110 * the control loop operation specifying the actor, operation,
113 * the policy the was specified from the yaml generated by CLAMP or
114 * through the Policy GUI/API
115 * @return an SDNR request conforming to the pci API using the DMAAP wrapper
118 public static PciRequestWrapper constructRequest(VirtualControlLoopEvent onset, ControlLoopOperation operation,
121 /* Construct an SDNR request using pci Model */
124 * The actual pci request is placed in a wrapper used to send through dmaap. The
125 * current version is 2.0 as of R1.
127 PciRequestWrapper dmaapRequest = new PciRequestWrapper();
128 dmaapRequest.setVersion("1.0");
129 dmaapRequest.setCorrelationId(onset.getRequestId() + "-" + operation.getSubRequestId());
130 dmaapRequest.setRpcName(policy.getRecipe().toLowerCase());
131 dmaapRequest.setType("request");
133 /* This is the actual request that is placed in the dmaap wrapper. */
134 final PciRequest sdnrRequest = new PciRequest();
136 /* The common header is a required field for all SDNR requests. */
137 PciCommonHeader requestCommonHeader = new PciCommonHeader();
138 requestCommonHeader.setRequestId(onset.getRequestId());
139 requestCommonHeader.setSubRequestId(operation.getSubRequestId());
141 sdnrRequest.setCommonHeader(requestCommonHeader);
142 sdnrRequest.setPayload(onset.getPayload());
145 * An action is required for all SDNR requests, this will be the recipe
146 * specified in the policy.
148 sdnrRequest.setAction(policy.getRecipe());
151 * Once the pci request is constructed, add it into the body of the dmaap
154 dmaapRequest.setBody(sdnrRequest);
155 logger.info("SDNR Request to be sent is {}", dmaapRequest);
157 /* Return the request to be sent through dmaap. */
162 * Parses the operation attempt using the subRequestId of SDNR response.
164 * @param subRequestId
165 * the sub id used to send to SDNR, Policy sets this using the
168 * @return the current operation attempt
170 public static Integer parseOperationAttempt(String subRequestId) {
171 Integer operationAttempt;
173 operationAttempt = Integer.parseInt(subRequestId);
174 } catch (NumberFormatException e) {
175 logger.debug("A NumberFormatException was thrown in parsing the operation attempt {}", subRequestId);
178 return operationAttempt;
182 * Processes the SDNR pci response sent from SDNR. Determines if the SDNR
183 * operation was successful/unsuccessful and maps this to the corresponding
186 * @param dmaapResponse
187 * the dmaap wrapper message that contains the actual SDNR reponse
188 * inside the body field
190 * @return an key-value pair that contains the Policy result and SDNR response
193 public static SdnrActorServiceProvider.Pair<PolicyResult, String> processResponse(
194 PciResponseWrapper dmaapResponse) {
196 logger.info("SDNR processResponse called : {}", dmaapResponse);
198 /* The actual SDNR response is inside the wrapper's body field. */
199 PciResponse sdnrResponse = dmaapResponse.getBody();
201 /* The message returned in the SDNR response. */
204 /* The Policy result determined from the SDNR Response. */
208 * If there is no status, Policy cannot determine if the request was successful.
210 if (sdnrResponse.getStatus() == null) {
211 message = "Policy was unable to parse SDN-R response status field (it was null).";
212 return new SdnrActorServiceProvider.Pair<>(PolicyResult.FAILURE_EXCEPTION, message);
216 * If there is no code, Policy cannot determine if the request was successful.
218 String responseValue = PciResponseCode.toResponseValue(sdnrResponse.getStatus().getCode());
219 if (responseValue == null) {
220 message = "Policy was unable to parse SDN-R response status code field.";
221 return new SdnrActorServiceProvider.Pair<>(PolicyResult.FAILURE_EXCEPTION, message);
223 logger.info("SDNR Response Code is {}", responseValue);
225 /* Save the SDNR response's message for Policy notification message. */
226 message = sdnrResponse.getStatus().getValue();
227 logger.info("SDNR Response Message is {}", message);
230 * Response and Payload are just printed and no further action needed in
233 String rspPayload = sdnrResponse.getPayload();
234 logger.info("SDNR Response Payload is {}", rspPayload);
236 /* Maps the SDNR response result to a Policy result. */
237 switch (responseValue) {
238 case PciResponseCode.ACCEPTED:
239 /* Nothing to do if code is accept, continue processing */
242 case PciResponseCode.SUCCESS:
243 result = PolicyResult.SUCCESS;
245 case PciResponseCode.FAILURE:
246 result = PolicyResult.FAILURE;
248 case PciResponseCode.REJECT:
249 case PciResponseCode.ERROR:
251 result = PolicyResult.FAILURE_EXCEPTION;
253 return new SdnrActorServiceProvider.Pair<>(result, message);