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/**
* ============LICENSE_START=======================================================
* org.onap.aai
* ================================================================================
* Copyright © 2017-2018 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.onap.aai.serialization.engines;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.apache.tinkerpop.gremlin.structure.VertexProperty;
import org.onap.aai.dbmap.DBConnectionType;
import org.onap.aai.introspection.Loader;
import org.onap.aai.serialization.db.TitanGraphSingleton;
public class TitanDBEngine extends TransactionalGraphEngine {
/**
* Instantiates a new titan DB engine.
*
* @param style the style
* @param loader the loader
*/
public TitanDBEngine(QueryStyle style, DBConnectionType connectionType, Loader loader) {
super(style, loader, connectionType, TitanGraphSingleton.getInstance());
}
/**
* Instantiates a new titan DB engine.
*
* @param style the style
* @param loader the loader
* @param connect the connect
*/
public TitanDBEngine(QueryStyle style, Loader loader, boolean connect) {
super(style, loader);
if (connect) {
this.singleton = TitanGraphSingleton.getInstance();
}
}
/**
* {@inheritDoc}
*/
@Override
public boolean setListProperty(Vertex v, String name, List<?> objs) {
//clear out list full replace style
Iterator<VertexProperty<Object>> iterator = v.properties(name);
while (iterator.hasNext()) {
iterator.next().remove();
}
if (objs != null) {
for (Object obj : objs) {
v.property(name, obj);
}
}
return true;
}
/**
* {@inheritDoc}
*/
@Override
public List<Object> getListProperty(Vertex v, String name) {
List<Object> result = new ArrayList<Object>();
Iterator<VertexProperty<Object>> iterator = v.properties(name);
while (iterator.hasNext()) {
result.add(iterator.next().value());
}
if (result.size() == 0) {
result = null;
}
return result;
}
}
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