2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights
7 * ================================================================================
8 * Licensed under the Apache License, Version 2.0 (the "License");
9 * you may not use this file except in compliance with the License.
10 * You may obtain a copy of the License at
12 * http://www.apache.org/licenses/LICENSE-2.0
14 * Unless required by applicable law or agreed to in writing, software
15 * distributed under the License is distributed on an "AS IS" BASIS,
16 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
17 * See the License for the specific language governing permissions and
18 * limitations under the License.
19 * ============LICENSE_END============================================
20 * Modifications copyright (c) 2018 Nokia
21 * ===================================================================
24 package org.onap.clamp.clds.client.req.policy;
26 import com.att.eelf.configuration.EELFLogger;
27 import com.att.eelf.configuration.EELFManager;
28 import org.onap.clamp.clds.model.properties.Global;
29 import org.onap.clamp.clds.model.properties.ModelProperties;
30 import org.onap.clamp.clds.model.properties.PolicyChain;
31 import org.onap.clamp.clds.model.properties.PolicyItem;
32 import org.onap.policy.controlloop.policy.Policy;
33 import org.onap.policy.controlloop.policy.PolicyResult;
34 import org.onap.policy.controlloop.policy.Target;
35 import org.onap.policy.controlloop.policy.TargetType;
36 import org.onap.policy.controlloop.policy.builder.BuilderException;
37 import org.onap.policy.controlloop.policy.builder.ControlLoopPolicyBuilder;
38 import org.onap.policy.controlloop.policy.builder.Message;
39 import org.onap.policy.controlloop.policy.builder.Results;
40 import org.onap.policy.sdc.Resource;
41 import org.onap.policy.sdc.ResourceType;
42 import org.onap.policy.sdc.Service;
43 import org.springframework.stereotype.Component;
45 import javax.ws.rs.BadRequestException;
46 import java.io.UnsupportedEncodingException;
47 import java.net.URLEncoder;
48 import java.util.ArrayList;
49 import java.util.HashMap;
50 import java.util.Iterator;
51 import java.util.List;
55 class OperationalPolicyYamlFormatter {
56 private static final EELFLogger logger = EELFManager.getInstance().getLogger(OperationalPolicyYamlFormatter.class);
59 String formatYaml(ModelProperties prop, String modelElementId,
60 PolicyChain policyChain) throws BuilderException, UnsupportedEncodingException {
61 // get property objects
62 Global global = prop.getGlobal();
63 prop.setCurrentModelElementId(modelElementId);
64 prop.setPolicyUniqueId(policyChain.getPolicyId());
65 // convert values to SDC objects
66 Service service = new Service(global.getService());
67 Resource[] vfResources = convertToResources(global.getResourceVf(), ResourceType.VF);
68 Resource[] vfcResources = convertToResources(global.getResourceVfc(), ResourceType.VFC);
70 ControlLoopPolicyBuilder builder = ControlLoopPolicyBuilder.Factory.buildControlLoop(prop.getControlName(),
71 policyChain.getTimeout(), service, vfResources);
72 builder.addResource(vfcResources);
73 // process each policy
74 Map<String, Policy> policyObjMap = new HashMap<String, Policy>();
75 List<PolicyItem> policyItemList = orderParentFirst(policyChain.getPolicyItems());
76 for (PolicyItem policyItem : policyItemList) {
77 String policyName = policyItem.getRecipe() + " Policy";
78 Target target = new Target();
79 target.setType(TargetType.VM);
80 // We can send target type as VM/VNF for most of recipes
81 if (policyItem.getRecipeLevel() != null && !policyItem.getRecipeLevel().isEmpty()) {
82 target.setType(TargetType.valueOf(policyItem.getRecipeLevel()));
84 target.setResourceID(policyItem.getTargetResourceId());
85 String actor = policyItem.getActor();
86 Map<String, String> payloadMap = policyItem.getRecipePayload();
88 if (policyItemList.indexOf(policyItem) == 0) {
89 String policyDescription = policyItem.getRecipe()
90 + " Policy - the trigger (no parent) policy - created by CLDS";
91 policyObj = builder.setTriggerPolicy(policyName, policyDescription, actor, target,
92 policyItem.getRecipe(), payloadMap, policyItem.getMaxRetries(), policyItem.getRetryTimeLimit());
94 Policy parentPolicyObj = policyObjMap.get(policyItem.getParentPolicy());
95 String policyDescription = policyItem.getRecipe() + " Policy - triggered conditionally by "
96 + parentPolicyObj.getName() + " - created by CLDS";
97 policyObj = builder.setPolicyForPolicyResult(policyName, policyDescription, actor, target,
98 policyItem.getRecipe(), payloadMap, policyItem.getMaxRetries(), policyItem.getRetryTimeLimit(),
99 parentPolicyObj.getId(), convertToPolicyResults(policyItem.getParentPolicyConditions()));
100 logger.info("policyObj.id=" + policyObj.getId() + "; parentPolicyObj.id=" + parentPolicyObj.getId());
102 policyObjMap.put(policyItem.getId(), policyObj);
104 // Build the specification
105 Results results = builder.buildSpecification();
107 return URLEncoder.encode(results.getSpecification(), "UTF-8");
110 private List<PolicyItem> orderParentFirst(List<PolicyItem> inOrigList) {
111 List<PolicyItem> inList = new ArrayList<>();
112 inList.addAll(inOrigList);
113 List<PolicyItem> outList = new ArrayList<>();
115 while (!inList.isEmpty()) {
116 // check if there's a loop in the policy chain (the inList should
117 // have been reduced by at least one)
118 if (inList.size() == prevSize) {
119 throw new BadRequestException("Operation Policy validation problem: loop in Operation Policy chain");
121 prevSize = inList.size();
122 // the following loop should remove at least one PolicyItem from the
124 Iterator<PolicyItem> inListItr = inList.iterator();
125 while (inListItr.hasNext()) {
126 PolicyItem inItem = inListItr.next();
127 // check for trigger policy (no parent)
128 String parent = inItem.getParentPolicy();
129 if (parent == null || parent.length() == 0) {
130 if (!outList.isEmpty()) {
131 throw new BadRequestException(
132 "Operation Policy validation problem: more than one trigger policy");
138 // check if this PolicyItem's parent has been processed
139 for (PolicyItem outItem : outList) {
140 if (outItem.getId().equals(parent)) {
141 // if the inItem parent is already in the outList,
142 // then add inItem to outList and remove from inList
154 private void validate(Results results) {
155 if (results.isValid()) {
156 logger.info("results.getSpecification()=" + results.getSpecification());
158 // throw exception with error info
159 StringBuilder sb = new StringBuilder();
160 sb.append("Operation Policy validation problem: ControlLoopPolicyBuilder failed with following messages: ");
161 for (Message message : results.getMessages()) {
162 sb.append(message.getMessage());
165 throw new BadRequestException(sb.toString());
170 Resource[] convertToResources(List<String> stringList, ResourceType resourceType) {
171 if (stringList == null || stringList.isEmpty()) {
172 return new Resource[0];
174 return stringList.stream().map(stringElem -> new Resource(stringElem, resourceType)).toArray(Resource[]::new);
177 PolicyResult[] convertToPolicyResults(List<String> prList) {
178 if (prList == null || prList.isEmpty()) {
179 return new PolicyResult[0];
181 return prList.stream().map(PolicyResult::toResult).toArray(PolicyResult[]::new);