gerrit.onap Code Review - appc.git/blob

   1 /*-
   2  * ============LICENSE_START=======================================================
   3  * ONAP : APPC
   4  * ================================================================================
   5  * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights reserved.
   6  * ================================================================================
   7  * Copyright (C) 2017 Amdocs
   8  * ================================================================================
   9  * Modifications Copyright (C) 2019 Ericsson
  10  * =============================================================================
  11  * Licensed under the Apache License, Version 2.0 (the "License");
  12  * you may not use this file except in compliance with the License.
  13  * You may obtain a copy of the License at
  14  *
  15  *      http://www.apache.org/licenses/LICENSE-2.0
  16  *
  17  * Unless required by applicable law or agreed to in writing, software
  18  * distributed under the License is distributed on an "AS IS" BASIS,
  19  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  20  * See the License for the specific language governing permissions and
  21  * limitations under the License.
  22  *
  23  * ============LICENSE_END=========================================================
  24  */
  25
  26 package org.onap.appc.seqgen.impl;
  27
  28 import org.onap.appc.dg.flowbuilder.FlowBuilder;
  29 import org.onap.appc.dg.flowbuilder.impl.FlowBuilderFactory;
  30 import org.onap.appc.dg.flowbuilder.exception.InvalidDependencyModelException;
  31 import org.onap.appc.dg.objects.FlowStrategies;
  32 import org.onap.appc.dg.objects.InventoryModel;
  33 import org.onap.appc.dg.objects.VnfcDependencyModel;
  34 import org.onap.appc.dg.objects.VnfcFlowModel;
  35 import org.onap.appc.domainmodel.Vnfc;
  36 import org.onap.appc.domainmodel.Vserver;
  37 import org.onap.appc.exceptions.APPCException;
  38 import org.onap.appc.seqgen.SequenceGenerator;
  39 import com.att.eelf.configuration.EELFLogger;
  40 import com.att.eelf.configuration.EELFManager;
  41 import org.onap.appc.seqgen.objects.ActionIdentifier;
  42 import org.onap.appc.seqgen.objects.Constants;
  43 import org.onap.appc.seqgen.objects.Response;
  44 import org.onap.appc.seqgen.objects.SequenceGeneratorInput;
  45 import org.onap.appc.seqgen.objects.Transaction;
  46
  47 import java.util.HashMap;
  48 import java.util.Iterator;
  49 import java.util.LinkedList;
  50 import java.util.List;
  51 import java.util.Map;
  52
  53 import static org.onap.appc.seqgen.objects.Constants.Action;
  54 import static org.onap.appc.seqgen.objects.Constants.ActionLevel;
  55 import static org.onap.appc.seqgen.objects.Constants.ResponseAction;
  56 import static org.onap.appc.seqgen.objects.Constants.ResponseMessage;
  57 import static org.onap.appc.seqgen.objects.Constants.Capabilties;
  58
  59 public class StopSequenceGenerator implements SequenceGenerator {
  60
  61     private static final EELFLogger logger = EELFManager.getInstance().getLogger(StopSequenceGenerator.class);
  62
  63     @Override
  64     public List<Transaction> generateSequence(SequenceGeneratorInput input) throws Exception {
  65         if (input.getRequestInfo().getActionLevel().equals(ActionLevel.VNF.getAction()) && input.getDependencyModel() != null ) {
  66             if(isVnfcPresent(input)) {
  67                 FlowStrategies flowStrategy = readFlowStrategy(input);
  68                 VnfcFlowModel flowModel = null;
  69                 try {
  70                         flowModel = buildFlowModel(input.getInventoryModel(), input.getDependencyModel(), flowStrategy);
  71                     } catch (InvalidDependencyModelException invalidDependencyModelException) {
  72                         logger.error("Error Generating Sequence", invalidDependencyModelException);
  73                         throw  new APPCException(invalidDependencyModelException.getMessage(), invalidDependencyModelException);
  74                 }
  75                 logger.debug("Flow Model " + flowModel);
  76                 return generateSequenceWithDependencyModel(flowModel, input);
  77             }
  78                 else throw  new APPCException("Vnfc details missing in the input");
  79             } else {
  80                 logger.info("Generating sequence without dependency model");
  81                 return generateSequenceWithOutDependency(input);
  82             }
  83     }
  84
  85     private List<Transaction> generateSequenceWithOutDependency(SequenceGeneratorInput input)throws Exception{
  86         String payload = null;
  87         PayloadGenerator payloadGenerator = new PayloadGenerator();
  88         List<Transaction> transactionList = new LinkedList<>();
  89         Integer transactionId = 1;
  90         List<Vserver> vservers = input.getInventoryModel().getVnf().getVservers();
  91         List<Integer> transactionIds = new LinkedList<>();
  92         for (Vserver vm : vservers) {
  93             Transaction transaction = new Transaction();
  94             transaction.setTransactionId(transactionId);
  95             transactionIds.add(transactionId++);
  96             transaction.setAction(Action.STOP.getActionType());
  97             transaction.setActionLevel(ActionLevel.VM.getAction());
  98             ActionIdentifier actionIdentifier = new ActionIdentifier();
  99             actionIdentifier.setvServerId(vm.getId());
 100             transaction.setActionIdentifier(actionIdentifier);
 101             String vmId = vm.getId();
 102             String url = vm.getUrl();
 103             payload = payloadGenerator.getPayload(input, vmId, url);
 104             transaction.setPayload(payload);
 105             if(vservers.size()>1){
 106                 Response failureResponse = new Response();
 107                 failureResponse.setResponseMessage(ResponseMessage.FAILURE.getResponse());
 108                 Map<String,String> failureAction = new HashMap<>();
 109                 failureAction.put(ResponseAction.IGNORE.getAction(),Boolean.TRUE.toString());
 110                 failureResponse.setResponseAction(failureAction);
 111                 transaction.addResponse(failureResponse);
 112             }
 113             transactionList.add(transaction);
 114        }
 115        return transactionList;
 116     }
 117
 118     private List<Transaction> generateSequenceWithDependencyModel(VnfcFlowModel flowModel,SequenceGeneratorInput input){
 119         List<Transaction> transactionList = new LinkedList<>();
 120         Integer transactionId = 1;
 121         List<Integer> transactionIds = new LinkedList<>();
 122         Iterator<List<Vnfc>> itr = flowModel.getModelIterator();
 123         while (itr.hasNext()){
 124             List<Vnfc> vnfcs = itr.next();
 125             for(Vnfc vnfc:vnfcs){
 126                 boolean stopApplicationSupported = readApplicationStopCapability(input);
 127                 if(stopApplicationSupported && !vnfc.getVserverList().isEmpty()){
 128                     Transaction stopAppTransaction = new Transaction();
 129                     stopAppTransaction.setTransactionId(transactionId++);
 130                     stopAppTransaction.setAction(Action.STOP_APPLICATION.getActionType());
 131                     stopAppTransaction.setActionLevel(ActionLevel.VNFC.getAction());
 132                     ActionIdentifier stopActionIdentifier = new ActionIdentifier();
 133                     stopActionIdentifier .setVnfcName(vnfc.getVnfcName());
 134                     stopAppTransaction.setActionIdentifier(stopActionIdentifier );
 135                     stopAppTransaction.setPayload(input.getRequestInfo().getPayload());
 136                     Response failureResponse = new Response();
 137                     failureResponse.setResponseMessage(ResponseMessage.FAILURE.getResponse());
 138                     Map<String,String> failureAction = new HashMap<>();
 139                     failureAction.put(ResponseAction.IGNORE.getAction(),Boolean.TRUE.toString());
 140                     failureResponse.setResponseAction(failureAction);
 141                     stopAppTransaction.addResponse(failureResponse);
 142                     transactionList.add(stopAppTransaction);
 143                 }
 144                 List<Vserver> vms = vnfc.getVserverList();
 145                 for(Vserver vm:vms){
 146                     Transaction transaction = new Transaction();
 147                     transaction.setTransactionId(transactionId);
 148                     transactionIds.add(transactionId++);
 149                     transaction.setAction(Action.STOP.getActionType());
 150                     transaction.setActionLevel(ActionLevel.VM.getAction());
 151                     ActionIdentifier actionIdentifier = new ActionIdentifier();
 152                     actionIdentifier.setvServerId(vm.getId());
 153                     transaction.setActionIdentifier(actionIdentifier);
 154                     transaction.setPayload(input.getRequestInfo().getPayload());
 155                     Response failureResponse = new Response();
 156                     failureResponse.setResponseMessage(ResponseMessage.FAILURE.getResponse());
 157                     Map<String,String> failureAction = new HashMap<>();
 158                     failureAction.put(ResponseAction.IGNORE.getAction(),Boolean.TRUE.toString());
 159                     failureResponse.setResponseAction(failureAction);
 160                     transaction.addResponse(failureResponse);
 161                     transactionList.add(transaction);
 162                 }
 163             }
 164         }
 165         return transactionList;
 166     }
 167
 168     private VnfcFlowModel buildFlowModel(InventoryModel inventoryModel, VnfcDependencyModel dependencyModel, FlowStrategies flowStrategy) throws APPCException, InvalidDependencyModelException {
 169         FlowBuilder flowBuilder = FlowBuilderFactory.getInstance().getFlowBuilder(flowStrategy);
 170         if (flowBuilder == null) {
 171             throw new APPCException("Flow Strategy not supported " + flowStrategy);
 172         }
 173         return flowBuilder.buildFlowModel(dependencyModel, inventoryModel);
 174     }
 175
 176     private FlowStrategies readFlowStrategy(SequenceGeneratorInput sequenceGeneratorInput)  {
 177         Map<String, String> tunableParams = sequenceGeneratorInput.getTunableParams();
 178         FlowStrategies strategy = null;
 179         String strategyStr = null;
 180         if (tunableParams != null) {
 181             strategyStr = tunableParams.get(Constants.STRATEGY);
 182             strategy = FlowStrategies.findByString(strategyStr);
 183         }
 184         if (strategy == null)
 185              strategy= FlowStrategies.REVERSE;
 186         return strategy;
 187     }
 188
 189     private boolean isVnfcPresent(SequenceGeneratorInput input){
 190         boolean vnfcPresent=true;
 191         List<Vserver> vservers = input.getInventoryModel().getVnf().getVservers();
 192         for (Vserver vm : vservers) {
 193             if(!(vm.getVnfc()!=null&& vm.getVnfc().getVnfcType()!=null&& vm.getVnfc().getVnfcName()!=null)){
 194                 vnfcPresent=false;break;
 195             }
 196         }
 197         return vnfcPresent;
 198     }
 199
 200     private boolean readApplicationStopCapability(SequenceGeneratorInput input) {
 201         Map<String,List<String>> capability = input.getCapability();
 202         if(capability!= null){
 203             List<String> vnfcCapabilities = capability.get(Constants.CapabilityLevel.VNFC.getLevel());
 204             if(vnfcCapabilities!=null)
 205                 return vnfcCapabilities.stream().anyMatch(p -> Capabilties.STOP_APPLICATION.getCapability().equalsIgnoreCase(p));
 206         }
 207         return false;
 208     }
 209
 210
 211 }