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/*-
* ============LICENSE_START=======================================================
* SDC
* ================================================================================
* 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.sdc.be.dao.api;
import fj.data.Either;
import org.openecomp.sdc.be.dao.graph.datatype.GraphElement;
import org.openecomp.sdc.be.dao.graph.datatype.GraphElementTypeEnum;
import org.openecomp.sdc.be.dao.graph.datatype.GraphNode;
import org.openecomp.sdc.be.dao.impl.Neo4jResourceDAO;
import org.openecomp.sdc.be.dao.neo4j.*;
import org.openecomp.sdc.be.dao.neo4j.filters.MatchFilter;
import org.openecomp.sdc.be.datatypes.enums.NodeTypeEnum;
import org.openecomp.sdc.common.log.wrappers.Logger;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
public abstract class BasicDao implements IBasicDAO {
Neo4jGraphBatchBuilder graphBatchBuilder = new Neo4jGraphBatchBuilder();
Neo4jClient neo4jClient;
private static Logger logger = Logger.getLogger(Neo4jResourceDAO.class.getName());
public <T extends GraphNode> Either<T, Neo4jOperationStatus> create(GraphNeighbourTable graphNeighbourTable,
Class<T> clazz, NodeTypeEnum nodeType) {
if (graphNeighbourTable != null) {
Either<BatchBuilder, Neo4jOperationStatus> bbResult = graphBatchBuilder
.buildBatchBuilderFromTable(graphNeighbourTable);
if (bbResult.isLeft()) {
BatchBuilder batchBuilder = bbResult.left().value();
// Neo4jOperationStatus neo4jOperationStatus =
// neo4jClient.execute(batchBuilder);
Either<List<List<GraphElement>>, Neo4jOperationStatus> executeResult = neo4jClient
.execute(batchBuilder);
if (executeResult.isRight()) {
return Either.right(executeResult.right().value());
}
T result = null;
List<List<GraphElement>> listOfResults = executeResult.left().value();
if (listOfResults != null) {
for (List<GraphElement> listOfElements : listOfResults) {
if (listOfElements != null && !listOfElements.isEmpty()) {
for (GraphElement element : listOfElements) {
logger.debug("element {} was returned after running batch operation {}",
element, batchBuilder);
if (element instanceof GraphNode) {
GraphNode neo4jNode = (GraphNode) element;
if (NodeTypeEnum.getByName(neo4jNode.getLabel()) == nodeType) {
result = clazz.cast(neo4jNode);
}
}
}
}
}
}
return Either.left(result);
} else {
return Either.right(bbResult.right().value());
}
} else {
logger.error("The table sent in order to create resource is empty.");
return Either.right(Neo4jOperationStatus.BAD_REQUEST);
}
}
@Override
public <T extends GraphNode> Either<T, Neo4jOperationStatus> getNodeData(String uniqueid, Class<T> clazz,
NodeTypeEnum nodeTypeEnum) {
MatchFilter filter = new MatchFilter();
filter.addToMatch(GraphPropertiesDictionary.UNIQUE_ID.getProperty(), uniqueid);
return getNodeData(filter, clazz, nodeTypeEnum);
}
@Override
public <T extends GraphNode> Either<T, Neo4jOperationStatus> getNodeData(String keyName, String uniqueid,
Class<T> clazz, NodeTypeEnum nodeTypeEnum) {
MatchFilter filter = new MatchFilter();
filter.addToMatch(keyName, uniqueid);
return getNodeData(filter, clazz, nodeTypeEnum);
}
private <T extends GraphNode> Either<T, Neo4jOperationStatus> getNodeData(MatchFilter filter, Class<T> clazz,
NodeTypeEnum nodeTypeEnum) {
Either<List<GraphElement>, Neo4jOperationStatus> status = neo4jClient.getByFilter(GraphElementTypeEnum.Node,
nodeTypeEnum.getName(), filter);
if (status.isRight()) {
return Either.right(status.right().value());
} else {
List<GraphElement> value = status.left().value();
if (value == null || value.isEmpty()) {
return Either.right(Neo4jOperationStatus.NOT_FOUND);
} else {
return Either.left(clazz.cast(value.get(0)));
}
}
}
@Override
public <T extends GraphNode> Either<List<T>, Neo4jOperationStatus> getNodesData(
Map<String, Object> propertiesToMatch, Class<T> clazz, NodeTypeEnum nodeTypeEnum) {
MatchFilter filter = new MatchFilter();
if (propertiesToMatch != null) {
for (Entry<String, Object> property : propertiesToMatch.entrySet()) {
filter.addToMatch(property.getKey(), property.getValue());
}
}
Either<List<GraphElement>, Neo4jOperationStatus> status = neo4jClient.getByFilter(GraphElementTypeEnum.Node,
nodeTypeEnum.getName(), filter);
if (status.isRight()) {
return Either.right(status.right().value());
} else {
List<GraphElement> value = status.left().value();
if (value == null || value.isEmpty()) {
return Either.right(Neo4jOperationStatus.NOT_FOUND);
} else {
List<T> list = new ArrayList<>();
for (GraphElement element : value) {
list.add(clazz.cast(element));
}
return Either.left(list);
}
}
}
public Neo4jClient getNeo4jClient() {
return neo4jClient;
}
public void setNeo4jClient(Neo4jClient neo4jClient) {
this.neo4jClient = neo4jClient;
}
}
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