2 * ============LICENSE_START=======================================================
4 * ================================================================================
5 * Copyright (C) 2017 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=========================================================
22 package org.openecomp.appc.dg.dependencymanager.helper;
24 import com.att.eelf.configuration.EELFLogger;
25 import com.att.eelf.configuration.EELFManager;
26 import com.fasterxml.jackson.databind.JsonNode;
27 import com.fasterxml.jackson.databind.ObjectMapper;
28 import com.fasterxml.jackson.databind.node.ObjectNode;
29 import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
30 import org.apache.commons.lang3.StringUtils;
31 import org.openecomp.appc.dg.flowbuilder.exception.InvalidDependencyModel;
32 import org.openecomp.appc.dg.objects.Node;
33 import org.openecomp.appc.dg.objects.VnfcDependencyModel;
34 import org.openecomp.appc.domainmodel.Vnfc;
36 import java.io.IOException;
40 public class DependencyModelParser {
42 private static final EELFLogger logger = EELFManager.getInstance().getLogger(DependencyModelParser.class);
43 private static Map<String, String> dependencyMap;
44 private static final String PROPERTIES = "properties";
45 private static final String ACTIVE_ACTIVE = "Active-Active";
46 private static final String ACTIVE_PASSIVE = "Active-Passive";
47 private static final String HIGH_AVAILABLITY = "high_availablity";
48 private static final String MANDATORY = "mandatory";
49 private static final String TOPOLOGY_TEMPLATE = "topology_template";
52 Map<String, String> dependencyTypeMappingMap =new HashMap<>();
53 dependencyTypeMappingMap.put("geo-activeactive", ACTIVE_ACTIVE);
54 dependencyTypeMappingMap.put("geo-activestandby", ACTIVE_PASSIVE);
55 dependencyTypeMappingMap.put("local-activeactive", ACTIVE_ACTIVE);
56 dependencyTypeMappingMap.put("local-activestandby", ACTIVE_PASSIVE);
57 dependencyMap = Collections.unmodifiableMap(dependencyTypeMappingMap);
60 public VnfcDependencyModel generateDependencyModel(String vnfModel,String vnfType) {
61 Set<Node<Vnfc>> dependencies = new HashSet<>();
62 ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
64 String resilienceType;
65 String prefix = "org.openecomp.resource.vfc."+vnfType+".abstract.nodes.";
67 ObjectNode root = (ObjectNode) mapper.readTree(vnfModel);
68 logger.debug("VNF Model after parsing: " + root);
70 if(root.get(TOPOLOGY_TEMPLATE) == null || root.get(TOPOLOGY_TEMPLATE).get("node_templates") == null) {
71 throw new InvalidDependencyModel("Dependency model is missing 'topology_template' or 'node_templates' elements");
74 JsonNode topologyTemplateNode = root.get(TOPOLOGY_TEMPLATE);
75 JsonNode nodeTemplateNode = topologyTemplateNode.get("node_templates");
76 Iterator<Map.Entry<String, JsonNode>> itretor = nodeTemplateNode.fields();
77 for (JsonNode yamlNode : nodeTemplateNode) {
78 logger.debug("Processing node: " + yamlNode);
79 String vnfcType = itretor.next().getKey();
80 String type = yamlNode.get("type").textValue();
81 type = type.substring(0,type.lastIndexOf(".")+1);
82 if(type.concat(vnfcType).toLowerCase().startsWith(prefix.concat(vnfcType).toLowerCase())) {
84 if(yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY) == null || yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY).asText().isEmpty()) {
85 resilienceType = ACTIVE_ACTIVE;
87 resilienceType = dependencyMap.get(yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY).textValue());
90 if(yamlNode.get(PROPERTIES).findValue(MANDATORY) == null || yamlNode.get(PROPERTIES).findValue(MANDATORY).asText().isEmpty()) {
93 mandatory = yamlNode.get(PROPERTIES).findValue(MANDATORY).booleanValue();
95 String[] parentList = getDependencyArray(yamlNode);
96 Node<Vnfc> vnfcNode = getNode(dependencies, vnfcType);
97 if (vnfcNode != null) {
98 logger.debug("Dependency node already exists for vnfc Type: " + vnfcType);
99 if (StringUtils.isEmpty(vnfcNode.getChild().getResilienceType())) {
100 logger.debug("Updating resilience type, dependencies and mandatory attribute for VNFC type: " + vnfcType);
101 vnfcNode.getChild().setResilienceType(resilienceType);
102 if (parentList != null && parentList.length > 0) {
103 addDependencies(dependencies, vnfcNode, parentList);
105 vnfcNode.getChild().setMandatory(mandatory);
109 logger.debug("Creating dependency node for : " + vnfcType);
110 vnfcNode = new Node<>(new Vnfc(vnfcType, resilienceType, null, mandatory));
111 if (parentList != null && parentList.length > 0)
112 addDependencies(dependencies, vnfcNode, parentList);
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 InvalidDependencyModel("Error parsing dependency model. " + e.getMessage());
123 return new VnfcDependencyModel(dependencies);
126 private void addDependencies(Set<Node<Vnfc>> nodes, Node node, String[] parentList) {
127 for (String type : parentList) {
128 String parentType = getVnfcType(type);
129 Node<Vnfc> parentNode = getNode(nodes, parentType);
130 if (parentNode != null) {
131 logger.debug("VNFC already exists for VNFC type: " + parentType + ". Adding it to parent list ");
132 node.addParent(parentNode.getChild());
134 logger.debug("VNFC does not exist for VNFC type: " + parentType + ". Creating new VNFC ");
135 parentNode = new Node<>(new Vnfc(parentType, null));
136 node.addParent(parentNode.getChild());
137 logger.debug("Adding VNFC to dependency model : " + parentNode);
138 nodes.add(parentNode);
143 private String[] getDependencyArray(JsonNode node) {
144 JsonNode requirementsNode = node.get("requirements");
145 List<String> dependencyList = new ArrayList();
146 if(requirementsNode!=null) {
147 for (JsonNode internalNode : requirementsNode) {
148 if (nodeNullCheck(internalNode) &&"tosca.capabilities.Node".equalsIgnoreCase(internalNode.get("capability").asText())
149 && "tosca.relationships.DependsOn".equalsIgnoreCase(internalNode.get("relationship").asText())) {
150 if(internalNode.get("node") != null) {
151 dependencyList.add(internalNode.get("node").asText());
153 throw new InvalidDependencyModel("Error parsing dependency model. " + "Dependent Node not found for "+ node.get("type"));
157 return dependencyList.toArray(new String[0]);
159 return new String[0];
163 private boolean nodeNullCheck(JsonNode internalNode) {
164 return internalNode.get("dependency") != null && internalNode.get("capability") != null && internalNode.get("relationship") != null;
167 private Node<Vnfc> getNode(Set<Node<Vnfc>> nodes, String vnfcType) {
168 Iterator itr = nodes.iterator();
170 while (itr.hasNext()) {
171 node = (Node<Vnfc>) itr.next();
172 if (node.getChild().getVnfcType().equalsIgnoreCase(vnfcType)) {
179 private String getVnfcType(String type) {
180 return type.substring(type.lastIndexOf('.') + 1, type.length());