| /* |
| * 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.process.computer.bulkloading; |
| |
| import org.apache.commons.configuration.Configuration; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource; |
| import org.apache.tinkerpop.gremlin.structure.Edge; |
| import org.apache.tinkerpop.gremlin.structure.Graph; |
| import org.apache.tinkerpop.gremlin.structure.T; |
| import org.apache.tinkerpop.gremlin.structure.Vertex; |
| import org.apache.tinkerpop.gremlin.structure.VertexProperty; |
| |
| /** |
| * {@link OneTimeBulkLoader} is a {@link BulkLoader} implementation that should be used for initial bulk loads. In |
| * contrast to {@link IncrementalBulkLoader} it doesn't store temporary identifiers in the write graph nor does it |
| * attempt to find existing elements, instead it only clones each element from the source graph. |
| * |
| * @author Daniel Kuppitz (http://gremlin.guru) |
| * @deprecated As of release 3.2.10, not directly replaced - consider graph provider specific bulk loading methods |
| */ |
| @Deprecated |
| public class OneTimeBulkLoader implements BulkLoader { |
| |
| private boolean userSuppliedIds = false; |
| |
| /** |
| * Creates a clone of the given vertex in the given graph. |
| */ |
| @Override |
| public Vertex getOrCreateVertex(final Vertex vertex, final Graph graph, final GraphTraversalSource g) { |
| final GraphTraversal<Vertex, Vertex> t = g.addV(vertex.label()); |
| return (useUserSuppliedIds() ? t.property(T.id, vertex.id()) : t).next(); |
| } |
| |
| /** |
| * Creates a clone of the given edge between the given in- and out-vertices. |
| */ |
| @Override |
| public Edge getOrCreateEdge(final Edge edge, final Vertex outVertex, final Vertex inVertex, final Graph graph, final GraphTraversalSource g) { |
| return createEdge(edge, outVertex, inVertex, graph, g); |
| } |
| |
| /** |
| * Creates a clone of the given property for the given vertex. |
| */ |
| @Override |
| public VertexProperty getOrCreateVertexProperty(final VertexProperty<?> property, final Vertex vertex, final Graph graph, final GraphTraversalSource g) { |
| return createVertexProperty(property, vertex, graph, g); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public Vertex getVertex(final Vertex vertex, final Graph graph, final GraphTraversalSource g) { |
| return getVertexById(vertex.id(), graph, g); |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public boolean useUserSuppliedIds() { |
| return userSuppliedIds; |
| } |
| |
| /** |
| * Always returns false. |
| */ |
| @Override |
| public boolean keepOriginalIds() { |
| return false; |
| } |
| |
| /** |
| * Always returns null. |
| */ |
| @Override |
| public String getVertexIdProperty() { |
| return null; |
| } |
| |
| /** |
| * {@inheritDoc} |
| */ |
| @Override |
| public void configure(final Configuration configuration) { |
| if (configuration.containsKey(BulkLoaderVertexProgram.USER_SUPPLIED_IDS_CFG_KEY)) { |
| userSuppliedIds = configuration.getBoolean(BulkLoaderVertexProgram.USER_SUPPLIED_IDS_CFG_KEY); |
| } |
| } |
| } |