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package org.openecomp.sdc.be.model.operations.impl;
import org.apache.commons.lang3.tuple.Pair;
import org.openecomp.sdc.be.dao.graph.datatype.GraphNode;
import org.openecomp.sdc.be.dao.graph.datatype.GraphRelation;
import org.openecomp.sdc.be.dao.neo4j.GraphEdgeLabels;
import org.openecomp.sdc.be.dao.titan.TitanGenericDao;
import org.openecomp.sdc.be.dao.titan.TitanOperationStatus;
import org.openecomp.sdc.be.datatypes.enums.NodeTypeEnum;
import org.openecomp.sdc.be.model.operations.api.DerivedFromOperation;
import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
import org.openecomp.sdc.be.resources.data.UniqueIdData;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import fj.data.Either;
@Component
public class DefaultDerivedFromOperation implements DerivedFromOperation {
private static final Logger log = LoggerFactory.getLogger(DefaultDerivedFromOperation.class);
private TitanGenericDao titanGenericDao;
public DefaultDerivedFromOperation(TitanGenericDao titanGenericDao) {
this.titanGenericDao = titanGenericDao;
}
@Override
public Either<GraphRelation, StorageOperationStatus> addDerivedFromRelation(String parentUniqueId, String derivedFromUniqueId, NodeTypeEnum nodeType) {
UniqueIdData from = new UniqueIdData(NodeTypeEnum.PolicyType, parentUniqueId);
UniqueIdData to = new UniqueIdData(NodeTypeEnum.PolicyType, derivedFromUniqueId);
return titanGenericDao.createRelation(from, to, GraphEdgeLabels.DERIVED_FROM, null)
.right()
.map(DaoStatusConverter::convertTitanStatusToStorageStatus);
}
@Override
public <T extends GraphNode> Either<T, StorageOperationStatus> getDerivedFromChild(String uniqueId, NodeTypeEnum nodeType, Class<T> clazz) {
log.debug("#getDerivedFromChild - fetching derived from entity for node type {} with id {}", nodeType, uniqueId);
return titanGenericDao.getChild(UniqueIdBuilder.getKeyByNodeType(nodeType), uniqueId, GraphEdgeLabels.DERIVED_FROM, nodeType, clazz)
.bimap(Pair::getKey,
DaoStatusConverter::convertTitanStatusToStorageStatus);
}
@Override
public StorageOperationStatus removeDerivedFromRelation(String uniqueId, String derivedFromUniqueId, NodeTypeEnum nodeType) {
UniqueIdData from = new UniqueIdData(NodeTypeEnum.PolicyType, uniqueId);
UniqueIdData to = new UniqueIdData(NodeTypeEnum.PolicyType, derivedFromUniqueId);
return isDerivedFromExists(from, to)
.either(isRelationExist -> isRelationExist ? deleteDerivedFrom(from, to) : StorageOperationStatus.OK,
DaoStatusConverter::convertTitanStatusToStorageStatus);
}
private StorageOperationStatus deleteDerivedFrom(UniqueIdData from, UniqueIdData to) {
return titanGenericDao.deleteRelation(from, to, GraphEdgeLabels.DERIVED_FROM)
.either(deletedRelation -> StorageOperationStatus.OK,
DaoStatusConverter::convertTitanStatusToStorageStatus);
}
private Either<Boolean, TitanOperationStatus> isDerivedFromExists(UniqueIdData from, UniqueIdData to) {
return titanGenericDao.isRelationExist(from, to, GraphEdgeLabels.DERIVED_FROM);
}
}
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