/
PropertiesToVertex.java
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/
PropertiesToVertex.java
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/*
* Copyright © 2014 - 2019 Leipzig University (Database Research Group)
*
* 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.
*/
package org.gradoop.dataintegration.importer.impl.csv.functions;
import org.apache.flink.api.common.functions.MapFunction;
import org.gradoop.common.model.api.entities.EPGMVertex;
import org.gradoop.common.model.api.entities.EPGMVertexFactory;
import org.gradoop.common.model.impl.properties.Properties;
/**
* Create an ImportVertex for each tuple of an id and properties.
*
* @param <V> the vertex type
*/
public class PropertiesToVertex<V extends EPGMVertex> implements MapFunction<Properties, V> {
/**
* Reduce object instantiations.
*/
private V vertex;
/**
* Create a new CreateImportVertexCSV function
*
* @param vertexFactory the factory that is responsible for creating a vertex
*/
public PropertiesToVertex(EPGMVertexFactory<V> vertexFactory) {
this.vertex = vertexFactory.createVertex();
}
@Override
public V map(final Properties value) {
vertex.setProperties(value);
return vertex;
}
}