2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
6 * ================================================================================
7 * Copyright (C) 2017 Amdocs
8 * =============================================================================
9 * Licensed under the Apache License, Version 2.0 (the "License");
10 * you may not use this file except in compliance with the License.
11 * You may obtain a copy of the License at
13 * http://www.apache.org/licenses/LICENSE-2.0
15 * Unless required by applicable law or agreed to in writing, software
16 * distributed under the License is distributed on an "AS IS" BASIS,
17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
18 * See the License for the specific language governing permissions and
19 * limitations under the License.
21 * ECOMP is a trademark and service mark of AT&T Intellectual Property.
22 * ============LICENSE_END=========================================================
25 package org.onap.appc.dg.common.impl;
27 import com.att.eelf.configuration.EELFLogger;
28 import com.att.eelf.configuration.EELFManager;
29 import com.att.eelf.i18n.EELFResourceManager;
30 import java.util.HashSet;
31 import java.util.Iterator;
32 import java.util.List;
35 import org.onap.appc.dg.common.VnfExecutionFlow;
36 import org.onap.appc.dg.dependencymanager.DependencyManager;
37 import org.onap.appc.dg.dependencymanager.exception.DependencyModelNotFound;
38 import org.onap.appc.dg.dependencymanager.impl.DependencyModelFactory;
39 import org.onap.appc.dg.flowbuilder.FlowBuilder;
40 import org.onap.appc.dg.flowbuilder.exception.InvalidDependencyModelException;
41 import org.onap.appc.dg.flowbuilder.impl.FlowBuilderFactory;
42 import org.onap.appc.dg.objects.DependencyTypes;
43 import org.onap.appc.dg.objects.FlowStrategies;
44 import org.onap.appc.dg.objects.InventoryModel;
45 import org.onap.appc.dg.objects.Node;
46 import org.onap.appc.dg.objects.VnfcDependencyModel;
47 import org.onap.appc.dg.objects.VnfcFlowModel;
48 import org.onap.appc.domainmodel.Vnf;
49 import org.onap.appc.domainmodel.Vnfc;
50 import org.onap.appc.domainmodel.Vserver;
51 import org.onap.appc.exceptions.APPCException;
52 import org.onap.appc.i18n.Msg;
53 import org.onap.appc.metadata.objects.DependencyModelIdentifier;
54 import org.onap.ccsdk.sli.core.sli.SvcLogicContext;
56 public class VnfExecutionFlowImpl implements VnfExecutionFlow {
58 private final EELFLogger logger = EELFManager.getInstance().getLogger(VnfExecutionFlowImpl.class);
59 private static final String VNFC_FLOW = "vnfcFlow[";
60 private static final String VNF_VNFC = "vnf.vnfc[";
63 * Constructor <p>Used through blueprint
65 public VnfExecutionFlowImpl() {
70 public void getVnfExecutionFlowData(Map<String, String> params, SvcLogicContext context) {
71 String dependencyType = params.get(Constants.DEPENDENCY_TYPE);
72 String flowStrategy = params.get(Constants.FLOW_STRATEGY);
73 DependencyModelIdentifier modelIdentifier = readDependencyModelIdentifier(params);
74 VnfcDependencyModel dependencyModel;
76 validateInput(dependencyType, flowStrategy, params);
78 if (logger.isTraceEnabled()) {
79 logger.trace("Input received from DG Node : dependencyType = " + dependencyType +
80 " , flowStrategy = " + flowStrategy +
81 ", DependencyModelIdentifier = " + modelIdentifier.toString());
84 DependencyManager dependencyManager = DependencyModelFactory.createDependencyManager();
85 dependencyModel = dependencyManager.getVnfcDependencyModel(
86 modelIdentifier, DependencyTypes.findByString(dependencyType));
88 } catch (DependencyModelNotFound e) {
89 String msg = EELFResourceManager
90 .format(Msg.DEPENDENCY_MODEL_NOT_FOUND, params.get(Constants.VNF_TYPE));
92 context.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, msg);
93 context.setAttribute("dependencyModelFound", "false");
95 } catch (InvalidDependencyModelException e) {
96 String msg = EELFResourceManager
97 .format(Msg.INVALID_DEPENDENCY_MODEL, params.get(Constants.VNF_TYPE));
99 context.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, msg);
100 throw new VnfExecutionInternalException(e);
101 } catch (APPCException e) {
102 logger.error(e.getMessage());
103 context.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, e.getMessage());
104 throw new VnfExecutionInternalException(e);
105 } catch (RuntimeException e) {
106 logger.error(e.getMessage());
107 context.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, e.getMessage());
111 context.setAttribute("dependencyModelFound", "true");
112 if (logger.isDebugEnabled()) {
113 logger.debug("Dependency Model = " + dependencyModel);
115 logger.info("Building Inventory Model from DG context");
116 InventoryModel inventoryModel;
118 inventoryModel = readInventoryModel(context);
119 } catch (APPCException e) {
120 logger.error(e.getMessage());
121 context.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, e.getMessage());
122 throw new VnfExecutionInternalException(e);
124 if (logger.isDebugEnabled()) {
125 logger.debug("Inventory Model = " + inventoryModel);
126 logger.debug("Validating inventory model with dependency model");
129 validateInventoryModelWithDependencyModel(dependencyModel, inventoryModel);
130 } catch (APPCException e) {
131 logger.error(e.getMessage());
132 context.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, e.getMessage());
133 throw new VnfExecutionInternalException(e);
135 logger.info("Creating flow builder");
136 FlowBuilder flowBuilder = FlowBuilderFactory.getInstance().getFlowBuilder(
137 FlowStrategies.findByString(flowStrategy));
139 logger.info("Building Vnf flow model");
140 VnfcFlowModel flowModel;
142 flowModel = flowBuilder.buildFlowModel(dependencyModel, inventoryModel);
143 } catch (InvalidDependencyModelException e) {
144 String msg = EELFResourceManager
145 .format(Msg.INVALID_DEPENDENCY_MODEL, params.get(Constants.VNF_TYPE), e.getMessage());
147 context.setAttribute(Constants.ATTRIBUTE_ERROR_MESSAGE, msg);
148 throw new VnfExecutionInternalException(e);
151 // remove VNFCs from the flow model where vserver list is empty
152 reconcileFlowModel(flowModel);
153 populateContext(flowModel, context);
154 if (logger.isDebugEnabled()) {
157 String msg = EELFResourceManager
158 .format(Msg.SUCCESS_EVENT_MESSAGE, "GetVnfExecutionFlowData", "VNF ID " + params.get(Constants.VNF_TYPE));
159 context.setAttribute(org.onap.appc.Constants.ATTRIBUTE_SUCCESS_MESSAGE, msg);
162 private void validateInput(String dependencyType, String flowStrategy, Map<String, String> params)
163 throws APPCException {
164 DependencyTypes dependencyTypes = DependencyTypes.findByString(dependencyType);
165 if (dependencyTypes == null) {
166 throw new APPCException("Dependency type from the input : " + dependencyType + " is invalid.");
168 FlowStrategies flowStrategies = FlowStrategies.findByString(flowStrategy);
169 if (flowStrategies == null) {
170 throw new APPCException("Flow Strategy from the input : " + flowStrategy + " is invalid.");
172 String vnfType = params.get(Constants.VNF_TYPE);
173 if (nullOrEmpty(vnfType)) {
174 throw new APPCException("Vnf Type is not passed in the input");
176 String vnfVersion = params.get(Constants.VNF_VERION);
177 if (nullOrEmpty(vnfVersion)) {
178 throw new APPCException("Vnf Version not found");
182 private boolean nullOrEmpty(String vnfType) {
183 return vnfType == null || vnfType.isEmpty();
186 private void logContext(SvcLogicContext context) {
187 for (String key : context.getAttributeKeySet()) {
188 logger.debug(key + " = " + context.getAttribute(key) + "\n");
192 private void populateContext(VnfcFlowModel flowModel, SvcLogicContext context) {
194 Iterator<List<Vnfc>> iterator = flowModel.getModelIterator();
195 while (iterator.hasNext()) {
196 for (Vnfc vnfc : iterator.next()) {
197 context.setAttribute(VNFC_FLOW + flowIndex + "].vnfcName", vnfc.getVnfcName());
198 context.setAttribute(VNFC_FLOW + flowIndex + "].vnfcType", vnfc.getVnfcType());
199 context.setAttribute(VNFC_FLOW + flowIndex + "].resilienceType", vnfc.getResilienceType());
201 .setAttribute(VNFC_FLOW + flowIndex + "].vmCount", Integer.toString(vnfc.getVserverList().size()));
203 for (Vserver vm : vnfc.getVserverList()) {
204 context.setAttribute(VNFC_FLOW + flowIndex + "].vm[" + vmIndex + "].url", vm.getUrl());
210 context.setAttribute("vnfcFlowCount", Integer.toString(flowIndex));
213 private InventoryModel readInventoryModel(SvcLogicContext context) throws APPCException {
214 String vnfId = context.getAttribute("input.action-identifiers.vnf-id");
215 String vnfType = context.getAttribute("vnf.type");
216 String vnfVersion = context.getAttribute("vnf.version");
217 String vnfcCountStr = context.getAttribute("vnf.vnfcCount");
218 Integer vnfcCount = Integer.parseInt(vnfcCountStr);
219 Vnf vnf = createVnf(vnfId, vnfType, vnfVersion);
220 for (Integer i = 0; i < vnfcCount; i++) {
221 String vnfcName = context.getAttribute(VNF_VNFC + i + "].name");
222 String vnfcType = context.getAttribute(VNF_VNFC + i + "].type");
223 String vmCountStr = context.getAttribute(VNF_VNFC + i + "].vm_count");
224 if (nullOrEmpty(vnfcType)) {
225 throw new APPCException("Could not retrieve VNFC Type from DG Context for vnf.vnfc[" + i + "].type");
227 Integer vmCount = Integer.parseInt(vmCountStr);
228 Vnfc vnfc = createVnfc(vnfcName, vnfcType);
229 for (Integer j = 0; j < vmCount; j++) {
230 String vmURL = context.getAttribute(VNF_VNFC + i + "].vm[" + j + "].url");
231 Vserver vm = createVserver(vmURL);
237 return new InventoryModel(vnf);
240 private Vserver createVserver(String vmURL) {
241 Vserver vserver = new Vserver();
242 vserver.setUrl(vmURL);
246 private Vnfc createVnfc(String vnfcName, String vnfcType) {
247 Vnfc vnfc = new Vnfc();
248 vnfc.setVnfcName(vnfcName);
249 vnfc.setVnfcType(vnfcType);
253 private Vnf createVnf(String vnfId, String vnfType, String vnfVersion) {
255 vnf.setVnfType(vnfType);
257 vnf.setVnfVersion(vnfVersion);
261 private DependencyModelIdentifier readDependencyModelIdentifier(Map<String, String> params) {
262 String vnfType = params.get(Constants.VNF_TYPE);
263 String catalogVersion = params.get(Constants.VNF_VERION);
264 return new DependencyModelIdentifier(vnfType, catalogVersion);
267 private void validateInventoryModelWithDependencyModel(VnfcDependencyModel dependencyModel,
268 InventoryModel inventoryModel) throws APPCException {
269 Set<String> dependencyModelVnfcSet = new HashSet<>();
270 Set<String> dependencyModelMandatoryVnfcSet = new HashSet<>();
271 Set<String> inventoryModelVnfcsSet = new HashSet<>();
272 for (Node<Vnfc> node : dependencyModel.getDependencies()) {
273 dependencyModelVnfcSet.add(node.getChild().getVnfcType().toLowerCase());
274 if (node.getChild().isMandatory()) {
275 dependencyModelMandatoryVnfcSet.add(node.getChild().getVnfcType().toLowerCase());
278 for (Vnfc vnfc : inventoryModel.getVnf().getVnfcs()) {
279 inventoryModelVnfcsSet.add(vnfc.getVnfcType().toLowerCase());
281 // if dependency model and inventory model contains same set of VNFCs, validation succeed and hence return
282 if (dependencyModelVnfcSet.equals(inventoryModelVnfcsSet)) {
285 if (inventoryModelVnfcsSet.size() >= dependencyModelVnfcSet.size()) {
286 Set<String> difference = new HashSet<>(inventoryModelVnfcsSet);
287 difference.removeAll(dependencyModelVnfcSet);
288 logger.error("Dependency model is missing following vnfc type(s): " + difference);
289 throw new APPCException("Dependency model is missing following vnfc type(s): " + difference);
291 Set<String> difference = new HashSet<>(dependencyModelMandatoryVnfcSet);
292 difference.removeAll(inventoryModelVnfcsSet);
293 if (!difference.isEmpty()) {
294 logger.error("Inventory model is missing following mandatory vnfc type(s): " + difference);
295 throw new APPCException("Inventory model is missing following mandatory vnfc type(s): " + difference);
300 private void reconcileFlowModel(VnfcFlowModel flowModel) {
301 Iterator<List<Vnfc>> flowIterator = flowModel.getModelIterator();
302 while (flowIterator.hasNext()) {
303 Iterator<Vnfc> vnfcIterator = flowIterator.next().iterator();
304 while (vnfcIterator.hasNext()) {
305 Vnfc vnfc = vnfcIterator.next();
306 tryRemoveInterator(vnfcIterator, vnfc);
311 private void tryRemoveInterator(Iterator<Vnfc> vnfcIterator, Vnfc vnfc) {
312 if (vnfc.getVserverList().isEmpty()) {
313 if (logger.isDebugEnabled()) {
314 logger.debug("No vservers present for Vnfc type: " + vnfc.getVnfcType()
315 + ". Hence, removing it from the flow model.");
317 vnfcIterator.remove();