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.dependencymanager.helper;
27 import com.att.eelf.configuration.EELFLogger;
28 import com.att.eelf.configuration.EELFManager;
29 import com.fasterxml.jackson.databind.JsonNode;
30 import com.fasterxml.jackson.databind.ObjectMapper;
31 import com.fasterxml.jackson.databind.node.ObjectNode;
32 import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
33 import java.io.IOException;
34 import java.util.Collections;
35 import java.util.HashMap;
36 import java.util.HashSet;
37 import java.util.Iterator;
40 import org.apache.commons.lang3.StringUtils;
41 import org.onap.appc.dg.flowbuilder.exception.InvalidDependencyModelException;
42 import org.onap.appc.dg.objects.Node;
43 import org.onap.appc.dg.objects.VnfcDependencyModel;
44 import org.onap.appc.domainmodel.Vnfc;
46 public class DependencyModelParser {
48 private final EELFLogger logger = EELFManager.getInstance().getLogger(DependencyModelParser.class);
50 private static final String PROPERTIES = "properties";
51 private static final String ACTIVE_ACTIVE = "Active-Active";
52 private static final String ACTIVE_PASSIVE = "Active-Passive";
53 private static final String HIGH_AVAILABLITY = "high_availablity";
54 private static final String MANDATORY = "mandatory";
55 private static final String TOPOLOGY_TEMPLATE = "topology_template";
56 private static final String RELATIONSHIP = "relationship";
58 private static Map<String, String> dependencyMap;
61 Map<String, String> dependencyTypeMappingMap = new HashMap<>();
62 dependencyTypeMappingMap.put("geo-activeactive", ACTIVE_ACTIVE);
63 dependencyTypeMappingMap.put("geo-activestandby", ACTIVE_PASSIVE);
64 dependencyTypeMappingMap.put("local-activeactive", ACTIVE_ACTIVE);
65 dependencyTypeMappingMap.put("local-activestandby", ACTIVE_PASSIVE);
66 dependencyMap = Collections.unmodifiableMap(dependencyTypeMappingMap);
69 public VnfcDependencyModel generateDependencyModel(String vnfModel, String vnfType)
70 throws InvalidDependencyModelException {
71 Set<Node<Vnfc>> dependencies = new HashSet<>();
72 ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
74 String resilienceType;
75 String prefix = "org.onap.resource.vfc." + vnfType + ".abstract.nodes.";
77 ObjectNode root = (ObjectNode) mapper.readTree(vnfModel);
79 if (root.get(TOPOLOGY_TEMPLATE) == null || root.get(TOPOLOGY_TEMPLATE).get("node_templates") == null) {
80 throw new InvalidDependencyModelException(
81 "Dependency model is missing 'topology_template' or 'node_templates' elements");
84 JsonNode topologyTemplateNode = root.get(TOPOLOGY_TEMPLATE);
85 JsonNode nodeTemplateNode = topologyTemplateNode.get("node_templates");
86 Iterator<Map.Entry<String, JsonNode>> itretor = nodeTemplateNode.fields();
87 for (JsonNode yamlNode : nodeTemplateNode) {
88 logger.debug("Processing node: " + yamlNode);
89 String fullvnfcType = itretor.next().getValue().get("type").textValue();
90 String vnfcType = getQualifiedVnfcType(fullvnfcType);
91 String type = yamlNode.get("type").textValue();
92 type = type.substring(0, type.lastIndexOf('.') + 1);
93 if (type.concat(vnfcType).toLowerCase().startsWith(prefix.concat(vnfcType).toLowerCase())) {
95 resilienceType = resolveResilienceType(yamlNode);
96 mandatory = resolveMandatory(yamlNode);
97 String[] parentList = getDependencyArray(yamlNode, nodeTemplateNode);
98 Node<Vnfc> vnfcNode = getNode(dependencies, vnfcType);
100 if (vnfcNode != null) {
101 logger.debug("Dependency node already exists for vnfc Type: " + vnfcType);
102 if (StringUtils.isEmpty(vnfcNode.getChild().getResilienceType())) {
103 logger.debug("Updating resilience type, "
104 + "dependencies and mandatory attribute for VNFC type: " + vnfcType);
105 vnfcNode.getChild().setResilienceType(resilienceType);
106 tryFillNode(dependencies, parentList, vnfcNode);
107 vnfcNode.getChild().setMandatory(mandatory);
110 logger.debug("Creating dependency node for : " + vnfcType);
111 vnfcNode = new Node<>(createVnfc(mandatory, resilienceType, vnfcType));
112 tryFillNode(dependencies, parentList, vnfcNode);
113 logger.debug("Adding VNFC to dependency model : " + vnfcNode);
114 dependencies.add(vnfcNode);
118 } catch (IOException e) {
119 logger.error("Error parsing dependency model : " + vnfModel);
120 logger.error("Error message : " + e);
121 throw new InvalidDependencyModelException("Error parsing dependency model. " + e.getMessage());
123 return new VnfcDependencyModel(dependencies);
126 private void tryFillNode(Set<Node<Vnfc>> dependencies, String[] parentList, Node<Vnfc> vnfcNode) {
127 if (parentList.length > 0) {
128 fillNode(dependencies, vnfcNode, parentList);
132 private boolean resolveMandatory(JsonNode yamlNode) {
133 return !mandatoryDoesNotExist(yamlNode) && yamlNode.get(PROPERTIES).findValue(MANDATORY).booleanValue();
136 private boolean mandatoryDoesNotExist(JsonNode yamlNode) {
137 return yamlNode.get(PROPERTIES).findValue(MANDATORY) == null ||
138 yamlNode.get(PROPERTIES).findValue(MANDATORY).asText().isEmpty();
141 private String resolveResilienceType(JsonNode yamlNode) {
142 String resilienceType;
143 if (yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY) == null ||
144 yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY).asText().isEmpty()) {
146 resilienceType = ACTIVE_ACTIVE;
148 resilienceType = dependencyMap
149 .get(yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY).textValue());
151 return resilienceType;
154 private Vnfc createVnfc(boolean mandatory, String resilienceType, String vnfcType) {
155 Vnfc vnfc = new Vnfc();
156 vnfc.setMandatory(mandatory);
157 vnfc.setResilienceType(resilienceType);
158 vnfc.setVnfcType(vnfcType);
162 private String getQualifiedVnfcType(String fullvnfcType) {
163 return fullvnfcType.substring(fullvnfcType.lastIndexOf('.') + 1, fullvnfcType.length());
166 private void fillNode(Set<Node<Vnfc>> nodes, Node<Vnfc> node, String[] parentList) {
167 for (String type : parentList) {
168 String parentType = getVnfcType(type);
169 Node<Vnfc> parentNode = getNode(nodes, parentType);
170 if (parentNode != null) {
171 logger.debug("VNFC already exists for VNFC type: " + parentType + ". Adding it to parent list ");
172 node.addParent(parentNode.getChild());
174 logger.debug("VNFC does not exist for VNFC type: " + parentType + ". Creating new VNFC ");
175 parentNode = new Node<>(createVnfc(false, null, parentType));
176 node.addParent(parentNode.getChild());
177 logger.debug("Adding VNFC to dependency model : " + parentNode);
178 nodes.add(parentNode);
183 private String[] getDependencyArray(JsonNode node, JsonNode nodeTemplateNode)
184 throws InvalidDependencyModelException {
185 JsonNode requirementsNode = node.get("requirements");
186 Set<String> dependencyList = new HashSet<>();
187 if (requirementsNode != null) {
188 for (JsonNode internalNode : requirementsNode) {
189 //TODO : In this release we are supporting both relationship = tosca.capabilities.Node and relationship =tosca.relationships.DependsOn we need to remove one of them in next release post confirming with SDC team
190 if (verifyNode(internalNode)) {
191 parseDependencyModel(node, nodeTemplateNode, dependencyList, internalNode);
194 return dependencyList.toArray(new String[0]);
196 return new String[0];
200 private void parseDependencyModel(JsonNode node, JsonNode nodeTemplateNode, Set<String> dependencyList,
201 JsonNode internalNode) throws InvalidDependencyModelException {
203 if (internalNode.findValue("node") != null) {
204 String nodeName = internalNode.findValue("node").asText();
205 String fullVnfcName = nodeTemplateNode.get(nodeName).get("type").asText();
206 dependencyList.add(getQualifiedVnfcType(fullVnfcName));
208 throw new InvalidDependencyModelException(
209 "Error parsing dependency model. " + "Dependent Node not found for " + node.get("type"));
213 private boolean verifyNode(JsonNode internalNode) {
214 return nodeNullCheck(internalNode) &&
215 "tosca.capabilities.Node".equalsIgnoreCase(internalNode.findValue("capability").asText()) &&
216 ("tosca.relationships.DependsOn".equalsIgnoreCase(internalNode.findValue(RELATIONSHIP).asText()) ||
217 "tosca.capabilities.Node".equalsIgnoreCase(internalNode.findValue(RELATIONSHIP).asText()));
220 private boolean nodeNullCheck(JsonNode internalNode) {
221 return internalNode.get("dependency") != null && internalNode.findValue("capability") != null
222 && internalNode.findValue(RELATIONSHIP) != null;
225 private Node<Vnfc> getNode(Set<Node<Vnfc>> nodes, String vnfcType) {
226 Iterator<Node<Vnfc>> itr = nodes.iterator();
228 while (itr.hasNext()) {
230 if (node.getChild().getVnfcType().equalsIgnoreCase(vnfcType)) {
236 private String getVnfcType(String type) {
237 return type.substring(type.lastIndexOf('.') + 1, type.length());