appc-dg/appc-dg-shared/appc-dg-dependency-model/src/main/java/org/openecomp/appc/dg/flowbuilder/impl/AbstractFlowStrategy.java

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * openECOMP : APP-C
   4  * ================================================================================
   5  * Copyright (C) 2017 AT&T Intellectual Property. All rights
   6  *                                              reserved.
   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
  11  *
  12  *      http://www.apache.org/licenses/LICENSE-2.0
  13  *
  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  */
  21
  22 package org.openecomp.appc.dg.flowbuilder.impl;
  23
  24 import com.att.eelf.configuration.EELFLogger;
  25 import com.att.eelf.configuration.EELFManager;
  26
  27 import java.util.Iterator;
  28 import java.util.List;
  29 import java.util.Set;
  30
  31 import org.openecomp.appc.dg.flowbuilder.FlowStrategy;
  32 import org.openecomp.appc.dg.flowbuilder.exception.InvalidDependencyModel;
  33 import org.openecomp.appc.dg.flowbuilder.helper.Graph;
  34 import org.openecomp.appc.dg.objects.*;
  35 import org.openecomp.appc.domainmodel.Vnfc;
  36
  37
  38 public abstract class AbstractFlowStrategy implements FlowStrategy {
  39
  40     protected Graph<Vnfc> graph;
  41
  42     private static final EELFLogger logger = EELFManager.getInstance().getLogger(AbstractFlowStrategy.class);
  43
  44     public VnfcFlowModel buildFlowModel(VnfcDependencyModel dependencyModel, InventoryModel inventoryModel) {
  45         if(logger.isTraceEnabled()){
  46             logger.trace("Entering into buildFlowModel with dependency model = " + dependencyModel
  47                     + "inventory model = " +inventoryModel);
  48         }
  49
  50         if(dependencyModel == null
  51                 || dependencyModel.getDependencies() ==null
  52                 || dependencyModel.getDependencies().size() ==0){
  53             logger.debug("Dependency model not available, building flow model with sequence");
  54             throw new InvalidDependencyModel("Dependency model either null or does not contain any dependency");
  55         }
  56
  57         VnfcFlowModel flowModel = buildFlowModel(dependencyModel);
  58         if(logger.isDebugEnabled()){
  59             logger.debug("Flow Model without instance data: \n" + flowModel);
  60         }
  61
  62         logger.info("Populating flow model with A&AI data");
  63         populateFlowModel(flowModel,inventoryModel);
  64         if(logger.isDebugEnabled()){
  65             logger.debug("Flow Model with instance data: \n" + flowModel);
  66         }
  67
  68         return flowModel;
  69     }
  70
  71     private void populateFlowModel(VnfcFlowModel flowModel, InventoryModel inventoryModel) {
  72         Iterator<List<Vnfc>> flowIterator = null;
  73
  74         for(Vnfc vnfcFromInventory:inventoryModel.getVnf().getVnfcs()){
  75             flowIterator = flowModel.getModelIterator();
  76             String vnfcType = vnfcFromInventory.getVnfcType();
  77             while (flowIterator.hasNext()){
  78                 for(Vnfc vnfcFromFlowModel:flowIterator.next() ){
  79                     if(vnfcType.equalsIgnoreCase(vnfcFromFlowModel.getVnfcType())){
  80                         vnfcFromFlowModel.setVnfcName(vnfcFromInventory.getVnfcName());
  81                         vnfcFromFlowModel.addVms(vnfcFromInventory.getVserverList());
  82                     }
  83                 }
  84             }
  85
  86         }
  87
  88     }
  89
  90     private VnfcFlowModel buildFlowModel(VnfcDependencyModel dependencyModel) throws InvalidDependencyModel {
  91         Set<Node<Vnfc>> dependencies = dependencyModel.getDependencies();
  92         graph = new Graph(dependencies.size());
  93
  94         for(Node<Vnfc> node:dependencies){
  95             graph.addVertex(node.getChild());
  96         }
  97
  98         for(Node node:dependencies){
  99             Vnfc child = (Vnfc)node.getChild();
 100             List<Vnfc> parents = node.getParents();
 101             for(Vnfc parent:parents){
 102                 graph.addEdge(child,parent);
 103             }
 104         }
 105         List<List<Vnfc>> dependencyList = orderDependencies();
 106
 107         VnfcFlowModel.VnfcFlowModelBuilder builder = new VnfcFlowModel.VnfcFlowModelBuilder();
 108         int count=0;
 109         int flowModelSize = 0;
 110         for(List<Vnfc> vnfcList:dependencyList){
 111             builder.addMetadata(count,vnfcList);
 112             flowModelSize += vnfcList.size();
 113             count++;
 114         }
 115         if(flowModelSize != dependencies.size()){
 116             throw new InvalidDependencyModel("Cycle detected in the VNFC dependencies");
 117         }
 118
 119         return builder.build();
 120     }
 121
 122     protected abstract List<List<Vnfc>> orderDependencies();
 123
 124     /*private VnfcFlowModel buildFlowModelWithoutSequence(InventoryModel inventoryModel) {
 125         VnfcFlowModel.VnfcFlowModelBuilder builder = new VnfcFlowModel.VnfcFlowModelBuilder();
 126
 127         for(Vnfc vnfc:inventoryModel.getVnf().getVnfcs()){
 128             builder = builder.addMetadata(0,vnfc);
 129         }
 130
 131         return builder.build();
 132     }*/
 133 }