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/*-
* ============LICENSE_START=======================================================
* ONAP : 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.seqgen.impl;
import org.apache.commons.lang3.StringUtils;
import org.openecomp.appc.dg.flowbuilder.FlowBuilder;
import org.openecomp.appc.dg.flowbuilder.impl.FlowBuilderFactory;
import org.openecomp.appc.dg.objects.FlowStrategies;
import org.openecomp.appc.dg.objects.InventoryModel;
import org.openecomp.appc.dg.objects.VnfcDependencyModel;
import org.openecomp.appc.dg.objects.VnfcFlowModel;
import org.openecomp.appc.domainmodel.Vnfc;
import org.openecomp.appc.domainmodel.Vserver;
import org.openecomp.appc.exceptions.APPCException;
import org.openecomp.appc.seqgen.SequenceGenerator;
import org.openecomp.appc.seqgen.objects.*;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.util.*;
import static org.openecomp.appc.seqgen.objects.Constants.*;
public class StopSequenceGenerator implements SequenceGenerator {
private static final EELFLogger logger = EELFManager.getInstance().getLogger(StartSequenceGenerator.class);
@Override
public List<Transaction> generateSequence(SequenceGeneratorInput input) throws APPCException {
if(input.getRequestInfo().getActionLevel().equals(ActionLevel.VM.getAction())||input.getRequestInfo().getActionLevel().equals(ActionLevel.VNFC.getAction())||
input.getRequestInfo().getActionLevel().equals(ActionLevel.VNF.getAction())||input.getRequestInfo().getActionLevel().equals(ActionLevel.VF_MODULE.getAction())) {
if (input.getRequestInfo().getActionLevel().equals(ActionLevel.VNF.getAction()) && input.getDependencyModel() != null) {
FlowStrategies flowStrategy = readStopFlowStrategy(input);
VnfcFlowModel flowModel = buildFlowModel(input.getInventoryModel()
, input.getDependencyModel(), flowStrategy);
logger.debug("Flow Model " + flowModel);
return generateSequenceWithDependencyModel(flowModel, input);
} else {
logger.info("Generating sequence without dependency model");
return generateSequenceWithOutDependency(input);
}
}throw new APPCException("Invalid action level "+input.getRequestInfo().getActionLevel());
}
private List<Transaction> generateSequenceWithOutDependency(SequenceGeneratorInput input){
List<Transaction> transactionList = new LinkedList<>();
Integer transactionId = 1;
List<Integer> transactionIds = new LinkedList<>();
List<Vnfc> invVnfcList = input.getInventoryModel().getVnf().getVnfcs();
boolean singleTransaction=checkSingleTransaction(invVnfcList);
for (Vnfc vnfc : invVnfcList) {
List<Vserver> vms = vnfc.getVserverList();
for(Vserver vm:vms){
Transaction transaction = new Transaction();
transaction.setTransactionId(transactionId);
transactionIds.add(transactionId++);
transaction.setAction(Action.STOP.getActionType());
transaction.setActionLevel(ActionLevel.VM.getAction());
ActionIdentifier actionIdentifier = new ActionIdentifier();
actionIdentifier.setvServerId(vm.getId());
transaction.setActionIdentifier(actionIdentifier);
transaction.setPayload(input.getRequestInfo().getPayload());
if(!singleTransaction){
updateStopResponse(transaction);
}
transactionList.add(transaction);
}
}
return transactionList;
}
private void updateStopResponse(Transaction transaction) {
Response failureResponse = new Response();
failureResponse.setResponseMessage(ResponseMessage.FAILURE.getResponse());
Map<String,String> failureAction = new HashMap<>();
failureAction.put(ResponseAction.IGNORE.getAction(),Boolean.TRUE.toString());
failureResponse.setResponseAction(failureAction);
transaction.addResponse(failureResponse);
}
private boolean checkSingleTransaction(List<Vnfc> invVnfcList) {
int vServerCount=0;
for(Vnfc vnfc : invVnfcList) {
List<Vserver> vms = vnfc.getVserverList();
vServerCount=vServerCount+vms.size();
}
return vServerCount <= 1;
}
private List<Transaction> generateSequenceWithDependencyModel(VnfcFlowModel flowModel,SequenceGeneratorInput input){
List<Transaction> transactionList = new LinkedList<>();
Integer transactionId = 1;
List<Integer> transactionIds = new LinkedList<>();
Iterator<List<Vnfc>> itr = flowModel.getModelIterator();
while (itr.hasNext()){
List<Vnfc> vnfcs = itr.next();
for(Vnfc vnfc:vnfcs){
boolean stopApplicationSupported = readApplicationStopCapability(input);
if(stopApplicationSupported){
Transaction stopAppTransaction = new Transaction();
stopAppTransaction.setTransactionId(transactionId++);
stopAppTransaction.setAction(Action.STOP_APPLICATION.getActionType());
stopAppTransaction.setActionLevel(ActionLevel.VNFC.getAction());
ActionIdentifier stopActionIdentifier = new ActionIdentifier();
stopActionIdentifier .setVnfcName(vnfc.getVnfcName());
stopAppTransaction.setActionIdentifier(stopActionIdentifier );
stopAppTransaction.setPayload(input.getRequestInfo().getPayload());
updateStopResponse(stopAppTransaction);
transactionList.add(stopAppTransaction);
}
List<Vserver> vms = vnfc.getVserverList();
for(Vserver vm:vms){
Transaction transaction = new Transaction();
transaction.setTransactionId(transactionId);
transactionIds.add(transactionId++);
transaction.setAction(Action.STOP.getActionType());
transaction.setActionLevel(ActionLevel.VM.getAction());
ActionIdentifier actionIdentifier = new ActionIdentifier();
actionIdentifier.setvServerId(vm.getId());
transaction.setActionIdentifier(actionIdentifier);
transaction.setPayload(input.getRequestInfo().getPayload());
updateStopResponse(transaction);
transactionList.add(transaction);
}
}
}
return transactionList;
}
private VnfcFlowModel buildFlowModel(InventoryModel inventoryModel, VnfcDependencyModel dependencyModel, FlowStrategies flowStrategy) throws APPCException {
FlowBuilder flowBuilder = FlowBuilderFactory.getInstance().getFlowBuilder(flowStrategy);
if (flowBuilder == null) {
throw new APPCException("Flow Strategy not supported " + flowStrategy);
}
return flowBuilder.buildFlowModel(dependencyModel, inventoryModel);
}
private FlowStrategies readStopFlowStrategy(SequenceGeneratorInput sequenceGeneratorInput) throws APPCException {
Map<String, String> tunableParams = sequenceGeneratorInput.getTunableParams();
FlowStrategies strategy;
String strategyStr = null;
if (tunableParams != null) {
strategyStr = tunableParams.get(Constants.STRATEGY);
if (StringUtils.isBlank(strategyStr)) {
return FlowStrategies.REVERSE;
}
strategy = FlowStrategies.findByString(strategyStr);
if (strategy != null) {
return strategy;
}
}
throw new APPCException("Invalid Strategy " + strategyStr);
}
private boolean readApplicationStopCapability(SequenceGeneratorInput input) {
Map<String,List<String>> capability = input.getCapability();
if(capability!= null){
List<String> vnfcCapabilities = capability.get(Constants.CapabilityLevel.VNFC.getLevel());
if(vnfcCapabilities!=null)
return vnfcCapabilities.stream().anyMatch(p -> Capabilties.STOP_APPLICATION.getCapability().equalsIgnoreCase(p));
}
return false;
}
}
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