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/*-
* ============LICENSE_START=======================================================
* ONAP : APPC
* ================================================================================
* Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
* ================================================================================
* Copyright (C) 2017 Amdocs
* =============================================================================
* 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.
*
* ECOMP is a trademark and service mark of AT&T Intellectual Property.
* ============LICENSE_END=========================================================
*/
package org.onap.appc.dg.flowbuilder.impl;
import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;
import java.util.Iterator;
import java.util.List;
import java.util.Set;
import org.onap.appc.dg.flowbuilder.FlowStrategy;
import org.onap.appc.dg.flowbuilder.exception.InvalidDependencyModelException;
import org.onap.appc.dg.flowbuilder.helper.Graph;
import org.onap.appc.dg.objects.*;
import org.onap.appc.domainmodel.Vnfc;
public abstract class AbstractFlowStrategy implements FlowStrategy {
private final EELFLogger logger = EELFManager.getInstance().getLogger(AbstractFlowStrategy.class);
Graph<Vnfc> graph;
public VnfcFlowModel buildFlowModel(VnfcDependencyModel dependencyModel, InventoryModel inventoryModel) throws InvalidDependencyModelException {
if(logger.isTraceEnabled()){
logger.trace("Entering into buildFlowModel with dependency model = " + dependencyModel
+ "inventory model = " +inventoryModel);
}
if(dependencyModel == null
|| dependencyModel.getDependencies() ==null
|| dependencyModel.getDependencies().size() ==0){
logger.debug("Dependency model not available, building flow model with sequence");
throw new InvalidDependencyModelException("Dependency model either null or does not contain any dependency");
}
VnfcFlowModel flowModel = buildFlowModel(dependencyModel);
if(logger.isDebugEnabled()){
logger.debug("Flow Model without instance data: \n" + flowModel);
}
logger.info("Populating flow model with A&AI data");
populateFlowModel(flowModel,inventoryModel);
if(logger.isDebugEnabled()){
logger.debug("Flow Model with instance data: \n" + flowModel);
}
return flowModel;
}
private void populateFlowModel(VnfcFlowModel flowModel, InventoryModel inventoryModel) {
Iterator<List<Vnfc>> flowIterator;
for(Vnfc vnfcFromInventory:inventoryModel.getVnf().getVnfcs()){
flowIterator = flowModel.getModelIterator();
String vnfcType = vnfcFromInventory.getVnfcType();
while (flowIterator.hasNext()){
for(Vnfc vnfcFromFlowModel:flowIterator.next() ){
if(vnfcType.equalsIgnoreCase(vnfcFromFlowModel.getVnfcType())){
vnfcFromFlowModel.setVnfcName(vnfcFromInventory.getVnfcName());
vnfcFromFlowModel.setVserverList(vnfcFromInventory.getVserverList());
}
}
}
}
}
@SuppressWarnings("unchecked")
private VnfcFlowModel buildFlowModel(VnfcDependencyModel dependencyModel) throws InvalidDependencyModelException {
Set<Node<Vnfc>> dependencies = dependencyModel.getDependencies();
graph = new Graph(dependencies.size());
for(Node<Vnfc> node:dependencies){
graph.addVertex(node.getChild());
}
for(Node node:dependencies){
Vnfc child = (Vnfc)node.getChild();
List<Vnfc> parents = node.getParents();
for(Vnfc parent:parents){
graph.addEdge(child,parent);
}
}
List<List<Vnfc>> dependencyList = orderDependencies();
VnfcFlowModel.VnfcFlowModelBuilder builder = new VnfcFlowModel.VnfcFlowModelBuilder();
int count=0;
int flowModelSize = 0;
for(List<Vnfc> vnfcList:dependencyList){
builder.addMetadata(count,vnfcList);
flowModelSize += vnfcList.size();
count++;
}
if(flowModelSize != dependencies.size()){
throw new InvalidDependencyModelException("Cyclic dependency detected between the VNFC's");
}
return builder.build();
}
protected abstract List<List<Vnfc>> orderDependencies() throws InvalidDependencyModelException;
}
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