Merge of new rebased code

Change-Id: I9b8d1f69eb3e0af1935ed8304fea4bf54c1aac47
Signed-off-by: Patrick Brady <pb071s@att.com>

1 files changed, 183 insertions, 0 deletions

diff --git a/appc-dg/appc-dg-shared/appc-dg-dependency-model/src/main/java/org/openecomp/appc/dg/dependencymanager/helper/DependencyModelParser.java b/appc-dg/appc-dg-shared/appc-dg-dependency-model/src/main/java/org/openecomp/appc/dg/dependencymanager/helper/DependencyModelParser.java
new file mode 100644
index 000000000..397042ecd
--- /dev/null
+++ b/appc-dg/appc-dg-shared/appc-dg-dependency-model/src/main/java/org/openecomp/appc/dg/dependencymanager/helper/DependencyModelParser.java
@@ -0,0 +1,183 @@
+/*-
+ * ============LICENSE_START=======================================================
+ * openECOMP : APP-C
+ * ================================================================================
+ * Copyright (C) 2017 AT&T Intellectual Property. All rights
+ * 						reserved.
+ * ================================================================================
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ * 
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ * ============LICENSE_END=========================================================
+ */
+
+package org.openecomp.appc.dg.dependencymanager.helper;
+
+import com.att.eelf.configuration.EELFLogger;
+import com.att.eelf.configuration.EELFManager;
+import com.fasterxml.jackson.databind.JsonNode;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.fasterxml.jackson.databind.node.ObjectNode;
+import com.fasterxml.jackson.dataformat.yaml.YAMLFactory;
+import org.apache.commons.lang3.StringUtils;
+import org.openecomp.appc.dg.flowbuilder.exception.InvalidDependencyModel;
+import org.openecomp.appc.dg.objects.Node;
+import org.openecomp.appc.dg.objects.VnfcDependencyModel;
+import org.openecomp.appc.domainmodel.Vnfc;
+
+import java.io.IOException;
+import java.util.*;
+
+
+public class DependencyModelParser {
+
+    private static final EELFLogger logger = EELFManager.getInstance().getLogger(DependencyModelParser.class);
+    private static Map<String, String> dependencyMap;
+    private static final String PROPERTIES = "properties";
+    private static final String ACTIVE_ACTIVE = "Active-Active";
+    private static final String ACTIVE_PASSIVE = "Active-Passive";
+    private static final String HIGH_AVAILABLITY = "high_availablity";
+    private static final String MANDATORY = "mandatory";
+    private static final String TOPOLOGY_TEMPLATE = "topology_template";
+
+    static {
+        Map<String, String> dependencyTypeMappingMap =new HashMap<>();
+        dependencyTypeMappingMap.put("geo-activeactive", ACTIVE_ACTIVE);
+        dependencyTypeMappingMap.put("geo-activestandby", ACTIVE_PASSIVE);
+        dependencyTypeMappingMap.put("local-activeactive", ACTIVE_ACTIVE);
+        dependencyTypeMappingMap.put("local-activestandby", ACTIVE_PASSIVE);
+        dependencyMap = Collections.unmodifiableMap(dependencyTypeMappingMap);
+    }
+
+    public VnfcDependencyModel generateDependencyModel(String vnfModel,String vnfType) {
+        Set<Node<Vnfc>> dependencies = new HashSet<>();
+        ObjectMapper mapper = new ObjectMapper(new YAMLFactory());
+        boolean mandatory;
+        String resilienceType;
+        String prefix = "org.openecomp.resource.vfc."+vnfType+".abstract.nodes.";
+        try {
+            ObjectNode root = (ObjectNode) mapper.readTree(vnfModel);
+            logger.debug("VNF Model after parsing: " + root);
+
+            if(root.get(TOPOLOGY_TEMPLATE) == null || root.get(TOPOLOGY_TEMPLATE).get("node_templates") == null) {
+                throw new InvalidDependencyModel("Dependency model is missing 'topology_template' or  'node_templates' elements");
+            }
+
+            JsonNode topologyTemplateNode = root.get(TOPOLOGY_TEMPLATE);
+            JsonNode nodeTemplateNode = topologyTemplateNode.get("node_templates");
+            Iterator<Map.Entry<String, JsonNode>> itretor  = nodeTemplateNode.fields();
+            for (JsonNode yamlNode : nodeTemplateNode) {
+                logger.debug("Processing node: " + yamlNode);
+                String vnfcType = itretor.next().getKey();
+                String type = yamlNode.get("type").textValue();
+                type = type.substring(0,type.lastIndexOf(".")+1);
+                if(type.concat(vnfcType).toLowerCase().startsWith(prefix.concat(vnfcType).toLowerCase())) {
+
+                    if(yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY) == null || yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY).asText().isEmpty()) {
+                        resilienceType = ACTIVE_ACTIVE;
+                    }else {
+                        resilienceType = dependencyMap.get(yamlNode.get(PROPERTIES).findValue(HIGH_AVAILABLITY).textValue());
+                    }
+
+                    if(yamlNode.get(PROPERTIES).findValue(MANDATORY) == null || yamlNode.get(PROPERTIES).findValue(MANDATORY).asText().isEmpty()) {
+                        mandatory = false;
+                    }else {
+                        mandatory = yamlNode.get(PROPERTIES).findValue(MANDATORY).booleanValue();
+                    }
+                    String[] parentList = getDependencyArray(yamlNode);
+                    Node<Vnfc> vnfcNode = getNode(dependencies, vnfcType);
+                    if (vnfcNode != null) {
+                        logger.debug("Dependency node already exists for vnfc Type: " + vnfcType);
+                        if (StringUtils.isEmpty(vnfcNode.getChild().getResilienceType())) {
+                            logger.debug("Updating resilience type, dependencies and mandatory attribute for VNFC type: " + vnfcType);
+                            vnfcNode.getChild().setResilienceType(resilienceType);
+                            if (parentList != null && parentList.length > 0) {
+                                addDependencies(dependencies, vnfcNode, parentList);
+                            }
+                            vnfcNode.getChild().setMandatory(mandatory);
+                        }
+
+                    } else {
+                        logger.debug("Creating dependency node for  : " + vnfcType);
+                        vnfcNode = new Node<>(new Vnfc(vnfcType, resilienceType, null, mandatory));
+                        if (parentList != null && parentList.length > 0)
+                            addDependencies(dependencies, vnfcNode, parentList);
+                        logger.debug("Adding VNFC to dependency model : " + vnfcNode);
+                        dependencies.add(vnfcNode);
+                    }
+                }
+            }
+        } catch (IOException e) {
+            logger.error("Error parsing dependency model : " + vnfModel);
+            logger.error("Error message : " + e);
+            throw new InvalidDependencyModel("Error parsing dependency model. " + e.getMessage());
+        }
+        return new VnfcDependencyModel(dependencies);
+    }
+
+    private void addDependencies(Set<Node<Vnfc>> nodes, Node node, String[] parentList) {
+        for (String type : parentList) {
+            String parentType = getVnfcType(type);
+            Node<Vnfc> parentNode = getNode(nodes, parentType);
+            if (parentNode != null) {
+                logger.debug("VNFC already exists for VNFC type: " + parentType + ". Adding it to parent list ");
+                node.addParent(parentNode.getChild());
+            } else {
+                logger.debug("VNFC does not exist for VNFC type: " + parentType + ". Creating new VNFC ");
+                parentNode = new Node<>(new Vnfc(parentType, null));
+                node.addParent(parentNode.getChild());
+                logger.debug("Adding VNFC to dependency model : " + parentNode);
+                nodes.add(parentNode);
+            }
+        }
+    }
+
+    private String[] getDependencyArray(JsonNode node) {
+        JsonNode requirementsNode = node.get("requirements");
+        List<String> dependencyList  = new ArrayList();
+        if(requirementsNode!=null) {
+            for (JsonNode internalNode : requirementsNode) {
+                if (nodeNullCheck(internalNode) &&"tosca.capabilities.Node".equalsIgnoreCase(internalNode.get("capability").asText())
+                        && "tosca.relationships.DependsOn".equalsIgnoreCase(internalNode.get("relationship").asText())) {
+                    if(internalNode.get("node") != null) {
+                        dependencyList.add(internalNode.get("node").asText());
+                    }else{
+                        throw new InvalidDependencyModel("Error parsing dependency model. " + "Dependent Node not found for "+ node.get("type"));
+                    }
+                }
+            }
+            return  dependencyList.toArray(new String[0]);
+        }else{
+            return new String[0];
+        }
+    }
+
+    private boolean nodeNullCheck(JsonNode internalNode) {
+        return internalNode.get("dependency") != null && internalNode.get("capability") != null && internalNode.get("relationship") != null;
+    }
+
+    private Node<Vnfc> getNode(Set<Node<Vnfc>> nodes, String vnfcType) {
+        Iterator itr = nodes.iterator();
+        Node<Vnfc> node;
+        while (itr.hasNext()) {
+            node = (Node<Vnfc>) itr.next();
+            if (node.getChild().getVnfcType().equalsIgnoreCase(vnfcType)) {
+                return node;
+            }
+        }
+        return null;
+    }
+
+    private String getVnfcType(String type) {
+        return type.substring(type.lastIndexOf('.') + 1, type.length());
+    }
+
+}