2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2020 AT&T 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.appclcm;
23 import java.util.List;
25 import java.util.UUID;
26 import java.util.concurrent.CompletableFuture;
27 import org.apache.commons.lang3.StringUtils;
28 import org.apache.commons.lang3.tuple.Pair;
29 import org.onap.policy.appclcm.AppcLcmBody;
30 import org.onap.policy.appclcm.AppcLcmCommonHeader;
31 import org.onap.policy.appclcm.AppcLcmDmaapWrapper;
32 import org.onap.policy.appclcm.AppcLcmInput;
33 import org.onap.policy.appclcm.AppcLcmOutput;
34 import org.onap.policy.appclcm.AppcLcmResponseCode;
35 import org.onap.policy.appclcm.AppcLcmResponseStatus;
36 import org.onap.policy.common.utils.coder.CoderException;
37 import org.onap.policy.controlloop.VirtualControlLoopEvent;
38 import org.onap.policy.controlloop.actorserviceprovider.OperationOutcome;
39 import org.onap.policy.controlloop.actorserviceprovider.impl.BidirectionalTopicOperation;
40 import org.onap.policy.controlloop.actorserviceprovider.parameters.BidirectionalTopicConfig;
41 import org.onap.policy.controlloop.actorserviceprovider.parameters.ControlLoopOperationParams;
42 import org.onap.policy.controlloop.actorserviceprovider.topic.SelectorKey;
43 import org.onap.policy.controlloop.policy.PolicyResult;
45 public class AppcLcmOperation extends BidirectionalTopicOperation<AppcLcmDmaapWrapper, AppcLcmDmaapWrapper> {
47 private static final String MISSING_STATUS = "APPC-LCM response is missing the response status";
48 public static final String VNF_ID_KEY = "vnf-id";
51 * Keys used to match the response with the request listener. The sub request ID is a
52 * UUID, so it can be used to uniquely identify the response.
54 * Note: if these change, then {@link #getExpectedKeyValues(int, AppcLcmDmaapWrapper)}
55 * must be updated accordingly.
57 public static final List<SelectorKey> SELECTOR_KEYS =
58 List.of(new SelectorKey("body", "output", "common-header", "sub-request-id"));
61 * Constructs the object.
63 * @param params operation parameters
64 * @param config configuration for this operation
66 public AppcLcmOperation(ControlLoopOperationParams params, BidirectionalTopicConfig config) {
67 super(params, config, AppcLcmDmaapWrapper.class);
69 if (StringUtils.isBlank(params.getTargetEntity())) {
70 throw new IllegalArgumentException("missing targetEntity");
75 * Ensures that A&AI customer query has been performed, and then runs the guard query.
76 * Starts the GUARD using startGuardAsync.
79 protected CompletableFuture<OperationOutcome> startPreprocessorAsync() {
80 return startGuardAsync();
84 protected Pair<String, AppcLcmDmaapWrapper> makeRequest(int attempt) {
85 VirtualControlLoopEvent onset = params.getContext().getEvent();
86 String subRequestId = UUID.randomUUID().toString();
88 AppcLcmCommonHeader header = new AppcLcmCommonHeader();
89 header.setOriginatorId(onset.getRequestId().toString());
90 header.setRequestId(onset.getRequestId());
91 header.setSubRequestId(subRequestId);
93 AppcLcmInput inputRequest = new AppcLcmInput();
94 inputRequest.setCommonHeader(header);
96 AppcLcmRecipeFormatter recipeFormatter = new AppcLcmRecipeFormatter(getName());
97 inputRequest.setAction(recipeFormatter.getBodyRecipe());
100 * Action Identifiers are required for APPC LCM requests. For R1, the recipes
101 * supported by Policy only require a vnf-id.
103 inputRequest.setActionIdentifiers(Map.of(VNF_ID_KEY, params.getTargetEntity()));
106 * For R1, the payloads will not be required for the Restart, Rebuild, or Migrate
107 * recipes. APPC will populate the payload based on A&AI look up of the vnd-id
108 * provided in the action identifiers. The payload is set when converPayload() is
111 if (operationSupportsPayload()) {
112 convertPayload(params.getPayload(), inputRequest);
114 inputRequest.setPayload(null);
117 AppcLcmBody body = new AppcLcmBody();
118 body.setInput(inputRequest);
120 AppcLcmDmaapWrapper dmaapRequest = new AppcLcmDmaapWrapper();
121 dmaapRequest.setBody(body);
122 dmaapRequest.setVersion("2.0");
123 dmaapRequest.setCorrelationId(onset.getRequestId() + "-" + subRequestId);
124 dmaapRequest.setRpcName(recipeFormatter.getUrlRecipe());
125 dmaapRequest.setType("request");
127 body.setInput(inputRequest);
128 dmaapRequest.setBody(body);
129 return Pair.of(subRequestId, dmaapRequest);
133 * Converts a payload. The original value is assumed to be a JSON string, which is
134 * decoded into an object.
136 * @param source source from which to get the values
137 * @param map where to place the decoded values
139 private void convertPayload(Map<String, Object> source, AppcLcmInput request) {
141 String encodedPayloadString = makeCoder().encode(source);
142 request.setPayload(encodedPayloadString);
143 } catch (CoderException e) {
144 throw new IllegalArgumentException("Cannot convert payload", e);
149 * Note: these values must match {@link #SELECTOR_KEYS}.
152 protected List<String> getExpectedKeyValues(int attempt, AppcLcmDmaapWrapper request) {
153 return List.of(request.getBody().getInput().getCommonHeader().getSubRequestId());
157 protected Status detmStatus(String rawResponse, AppcLcmDmaapWrapper response) {
158 AppcLcmResponseStatus status = getStatus(response);
159 if (status == null) {
160 throw new IllegalArgumentException(MISSING_STATUS);
163 String code = AppcLcmResponseCode.toResponseValue(status.getCode());
165 throw new IllegalArgumentException("unknown APPC-LCM response status code: " + status.getCode());
169 case AppcLcmResponseCode.SUCCESS:
170 return Status.SUCCESS;
171 case AppcLcmResponseCode.FAILURE:
172 return Status.FAILURE;
173 case AppcLcmResponseCode.ERROR:
174 case AppcLcmResponseCode.REJECT:
175 throw new IllegalArgumentException("APPC-LCM request was not accepted, code=" + code);
176 case AppcLcmResponseCode.ACCEPTED:
178 return Status.STILL_WAITING;
183 * Sets the message to the status description, if available.
186 public OperationOutcome setOutcome(OperationOutcome outcome, PolicyResult result, AppcLcmDmaapWrapper response) {
187 AppcLcmResponseStatus status = getStatus(response);
188 if (status == null) {
189 return setOutcome(outcome, result);
192 String message = status.getMessage();
193 if (message == null) {
194 return setOutcome(outcome, result);
197 outcome.setResult(result);
198 outcome.setMessage(message);
203 * Gets the status from the response.
205 * @param response the response from which to extract the status, or {@code null}
206 * @return the status, or {@code null} if it does not exist
208 protected AppcLcmResponseStatus getStatus(AppcLcmDmaapWrapper response) {
209 if (response == null) {
213 AppcLcmBody body = response.getBody();
218 AppcLcmOutput output = body.getOutput();
219 if (output == null) {
223 return output.getStatus();
227 * Determines if the operation supports a payload.
229 * @return {@code true} if the operation supports a payload, {@code false} otherwise
231 protected boolean operationSupportsPayload() {
232 return params.getPayload() != null && !params.getPayload().isEmpty()
233 && AppcLcmConstants.SUPPORTS_PAYLOAD.contains(params.getOperation().toLowerCase());