| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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.apache.tinkerpop.gremlin.hadoop.structure.io; |
| |
| import org.apache.commons.configuration.Configuration; |
| import org.apache.tinkerpop.gremlin.hadoop.Constants; |
| import org.apache.tinkerpop.gremlin.process.computer.GraphComputer; |
| import org.apache.tinkerpop.gremlin.process.computer.GraphFilter; |
| import org.apache.tinkerpop.gremlin.process.computer.util.VertexProgramHelper; |
| |
| /** |
| * An input graph class is {@code GraphFilterAware} if it can filter out vertices and edges as its loading the graph |
| * from the source data. Any input class that is {@code GraphFilterAware} must be able to fully handle both vertex and |
| * edge filtering. It is assumed that if the input class is {@code GraphFilterAware}, then the respective |
| * {@link GraphComputer} will not perform any filtering on the loaded graph. |
| * |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public interface GraphFilterAware { |
| |
| public void setGraphFilter(final GraphFilter graphFilter); |
| |
| public static void storeGraphFilter(final Configuration apacheConfiguration, final org.apache.hadoop.conf.Configuration hadoopConfiguration, final GraphFilter graphFilter) { |
| if (graphFilter.hasFilter()) { |
| VertexProgramHelper.serialize(graphFilter, apacheConfiguration, Constants.GREMLIN_HADOOP_GRAPH_FILTER); |
| hadoopConfiguration.set(Constants.GREMLIN_HADOOP_GRAPH_FILTER, apacheConfiguration.getString(Constants.GREMLIN_HADOOP_GRAPH_FILTER)); |
| } |
| } |
| } |