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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* Copyright (C) 2019 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.sdc.be.components.merge;
import org.openecomp.sdc.be.model.ComponentInstance;
import org.openecomp.sdc.be.model.RelationshipInfo;
import org.openecomp.sdc.be.model.RequirementCapabilityRelDef;
import org.openecomp.sdc.be.model.Resource;
import org.springframework.stereotype.Component;
import java.util.List;
import java.util.Map;
import java.util.Optional;
@Component
public class RelationsComparator {
/**
*
* @param oldResource the old resource
* @param newResource the new resource
* @return true if there was a change in one of the relations between the old and new resource
* a change in relation is determine by comparing the relations type, node, capability and requirement name
*/
public boolean isRelationsChanged(Resource oldResource, Resource newResource) {
Map<String, List<RequirementCapabilityRelDef>> oldRelationsByInstance = oldResource.groupRelationsByInstanceName(oldResource);
Map<String, List<RequirementCapabilityRelDef>> newRelationsByInstance = newResource.groupRelationsByInstanceName(newResource);
for (Map.Entry<String, List<RequirementCapabilityRelDef>> relationByInst : newRelationsByInstance.entrySet()) {
List<RequirementCapabilityRelDef> oldRelations = oldRelationsByInstance.get(relationByInst.getKey());
List<RequirementCapabilityRelDef> newRelations = relationByInst.getValue();
if (isInstanceRelationsChanged(oldResource, oldRelations, newResource, newRelations)) {
return true;
}
}
return false;
}
private boolean isInstanceRelationsChanged(Resource oldResource, List<RequirementCapabilityRelDef> oldRelations, Resource newResource, List<RequirementCapabilityRelDef> newRelations) {
if (oldRelations == null || oldRelations.size() != newRelations.size()){
return true;
}
return newRelations.stream().anyMatch(newRelation -> !findRelation(oldResource, oldRelations, newResource, newRelation));
}
private boolean findRelation(Resource oldResource, List<RequirementCapabilityRelDef> oldRelations, Resource newResource, RequirementCapabilityRelDef newRelation) {
for (RequirementCapabilityRelDef oldRelation : oldRelations) {
RelationshipInfo oldRelationship = oldRelation.resolveSingleRelationship().getRelation();
RelationshipInfo newRelationship = newRelation.resolveSingleRelationship().getRelation();
if (oldRelationship != null && newRelationship != null && isRelationEqual(oldRelationship, newRelationship) && isRelationToNodeEquals(oldResource, oldRelation, newResource, newRelation)) {
return true;
}
}
return false;
}
private boolean isRelationToNodeEquals(Resource oldResource, RequirementCapabilityRelDef oldRelation, Resource newResource, RequirementCapabilityRelDef newRelation) {
String oldToNodeId = oldRelation.getToNode();
String newToNodeId = newRelation.getToNode();
Optional<ComponentInstance> oldRelationToNode = oldResource.getComponentInstanceById(oldToNodeId);
Optional<ComponentInstance> newRelationToNode = newResource.getComponentInstanceById(newToNodeId);
return oldRelationToNode.isPresent() && newRelationToNode.isPresent() && oldRelationToNode.get().getName().equals(newRelationToNode.get().getName());
}
private boolean isRelationEqual(RelationshipInfo oldRelationship, RelationshipInfo newRelationship) {
return isRelationshipTypeEquals(oldRelationship, newRelationship) &&
isRelationshipCapabilityEquals(oldRelationship, newRelationship) &&
isRelationshipReqNameEquals(oldRelationship, newRelationship);
}
private boolean isRelationshipCapabilityEquals(RelationshipInfo oldRelationship, RelationshipInfo newRelationship) {
if(oldRelationship.getCapabilityUid() !=null && newRelationship.getCapabilityUid() != null){
return oldRelationship.getCapabilityUid().equals(newRelationship.getCapabilityUid());
}
else if(oldRelationship.getCapabilityUid() == null && newRelationship.getCapabilityUid() == null){
return true;
}
return false;
}
private boolean isRelationshipTypeEquals(RelationshipInfo oldRelationship, RelationshipInfo newRelationship) {
return oldRelationship.getRelationship().getType().equals(newRelationship.getRelationship().getType());
}
private boolean isRelationshipReqNameEquals(RelationshipInfo oldRelationship, RelationshipInfo newRelationship) {
if(oldRelationship.getRequirement() != null && newRelationship.getRequirement() != null){
return oldRelationship.getRequirement().equals(newRelationship.getRequirement());
}
else if(oldRelationship.getRequirement() == null && newRelationship.getRequirement() == null){
return true;
}
return false;
}
}
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