| /* |
| * 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.tinkergraph.structure; |
| |
| import org.apache.commons.io.FileUtils; |
| import org.apache.tinkerpop.gremlin.AbstractGremlinTest; |
| import org.apache.tinkerpop.gremlin.TestHelper; |
| import org.apache.tinkerpop.gremlin.algorithm.generator.DistributionGenerator; |
| import org.apache.tinkerpop.gremlin.algorithm.generator.PowerLawDistribution; |
| 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.io.GraphReader; |
| import org.apache.tinkerpop.gremlin.structure.io.graphml.GraphMLWriter; |
| import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONMapper; |
| import org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONWriter; |
| import org.apache.tinkerpop.gremlin.structure.io.gryo.GryoReader; |
| import org.apache.tinkerpop.gremlin.structure.io.gryo.GryoWriter; |
| import org.junit.BeforeClass; |
| import org.junit.Test; |
| |
| import java.io.File; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.util.stream.IntStream; |
| |
| /** |
| * Less of a test of functionality and more of a tool to help generate data files for TinkerPop. |
| * |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| */ |
| public class IoDataGenerationTest { |
| private static String tempPath; |
| |
| static { |
| tempPath = TestHelper.makeTestDataPath(TinkerGraphTest.class, "tinkerpop-io").getPath() + File.separator; |
| } |
| |
| @BeforeClass |
| public static void before() throws IOException { |
| final File tempDir = new File(tempPath); |
| FileUtils.deleteDirectory(tempDir); |
| if (!tempDir.mkdirs()) throw new IOException(String.format("Could not create %s", tempDir)); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteClassicGraphAsGryo() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-classic.kryo"); |
| GryoWriter.build().create().writeGraph(os, TinkerFactory.createClassic()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteModernGraphAsGryo() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-modern.kryo"); |
| GryoWriter.build().create().writeGraph(os, TinkerFactory.createModern()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteCrewGraphAsGryo() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-crew.kryo"); |
| GryoWriter.build().create().writeGraph(os, TinkerFactory.createTheCrew()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteClassicGraphAsGraphML() throws IOException { |
| try (final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-classic.xml")) { |
| GraphMLWriter.build().create().writeGraph(os, TinkerFactory.createClassic()); |
| } |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteModernGraphAsGraphML() throws IOException { |
| try (final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-modern.xml")) { |
| GraphMLWriter.build().create().writeGraph(os, TinkerFactory.createModern()); |
| } |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteClassicGraphAsGraphSONNoTypes() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-classic.json"); |
| GraphSONWriter.build().create().writeGraph(os, TinkerFactory.createClassic()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteModernGraphAsGraphSONNoTypes() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-modern.json"); |
| GraphSONWriter.build().create().writeGraph(os, TinkerFactory.createModern()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteCrewGraphAsGraphSONNoTypes() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-crew.json"); |
| GraphSONWriter.build().create().writeGraph(os, TinkerFactory.createTheCrew()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteClassicGraphNormalizedAsGraphSON() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-classic-normalized.json"); |
| GraphSONWriter.build().mapper(GraphSONMapper.build().normalize(true).create()).create().writeGraph(os, TinkerFactory.createClassic()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteModernGraphNormalizedAsGraphSON() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-modern-normalized.json"); |
| GraphSONWriter.build().mapper(GraphSONMapper.build().normalize(true).create()).create().writeGraph(os, TinkerFactory.createModern()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteClassicGraphAsGraphSONWithTypes() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-classic-typed.json"); |
| GraphSONWriter.build().mapper(GraphSONMapper.build().embedTypes(true).create()) |
| .create().writeGraph(os, TinkerFactory.createClassic()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteModernGraphAsGraphSONWithTypes() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-modern-typed.json"); |
| GraphSONWriter.build().mapper(GraphSONMapper.build().embedTypes(true).create()) |
| .create().writeGraph(os, TinkerFactory.createModern()); |
| os.close(); |
| } |
| |
| /** |
| * No assertions. Just write out the graph for convenience. |
| */ |
| @Test |
| public void shouldWriteCrewGraphAsGraphSONWithTypes() throws IOException { |
| final OutputStream os = new FileOutputStream(tempPath + "tinkerpop-crew-typed.json"); |
| GraphSONWriter.build().mapper(GraphSONMapper.build().embedTypes(true).create()) |
| .create().writeGraph(os, TinkerFactory.createTheCrew()); |
| os.close(); |
| } |
| |
| @Test |
| public void shouldWriteSampleForGremlinServer() throws IOException { |
| final Graph g = TinkerGraph.open(); |
| IntStream.range(0, 10000).forEach(i -> g.addVertex("oid", i)); |
| DistributionGenerator.build(g) |
| .label("knows") |
| .seedGenerator(() -> 987654321l) |
| .outDistribution(new PowerLawDistribution(2.1)) |
| .inDistribution(new PowerLawDistribution(2.1)) |
| .expectedNumEdges(100000).create().generate(); |
| |
| final OutputStream os = new FileOutputStream(tempPath + "sample.kryo"); |
| GryoWriter.build().create().writeGraph(os, g); |
| os.close(); |
| } |
| |
| /** |
| * This test helps with data conversions on Grateful Dead. No Assertions...run as needed. Never read from the |
| * GraphML source as it will always use a String identifier. |
| */ |
| @Test |
| public void shouldWriteGratefulDead() throws IOException { |
| final Graph g = TinkerGraph.open(); |
| |
| final GraphReader reader = GryoReader.build().create(); |
| try (final InputStream stream = AbstractGremlinTest.class.getResourceAsStream("/org/apache/tinkerpop/gremlin/structure/io/gryo/grateful-dead.kryo")) { |
| reader.readGraph(stream, g); |
| } |
| |
| /* keep this hanging around because changes to gryo format will need grateful dead generated from json so you can generate the gio |
| final GraphSONMapper mapper = GraphSONMapper.build().embedTypes(true).create(); |
| final GraphReader reader = org.apache.tinkerpop.gremlin.structure.io.graphson.GraphSONReader.build().mapper(mapper).create(); |
| try (final InputStream stream = AbstractGremlinTest.class.getResourceAsStream("/org/apache/tinkerpop/gremlin/structure/io/graphson/grateful-dead-typed.json")) { |
| reader.readGraph(stream, g); |
| } |
| */ |
| |
| final Graph ng = TinkerGraph.open(); |
| g.traversal().V().sideEffect(ov -> { |
| final Vertex v = ov.get(); |
| if (v.label().equals("song")) |
| ng.addVertex(T.id, Integer.parseInt(v.id().toString()), T.label, "song", "name", v.value("name"), "performances", v.property("performances").orElse(0), "songType", v.property("songType").orElse("")); |
| else if (v.label().equals("artist")) |
| ng.addVertex(T.id, Integer.parseInt(v.id().toString()), T.label, "artist", "name", v.value("name")); |
| else |
| throw new RuntimeException("damn"); |
| }).iterate(); |
| |
| g.traversal().E().sideEffect(oe -> { |
| final Edge e = oe.get(); |
| final Vertex v2 = ng.traversal().V(Integer.parseInt(e.inVertex().id().toString())).next(); |
| final Vertex v1 = ng.traversal().V(Integer.parseInt(e.outVertex().id().toString())).next(); |
| |
| if (e.label().equals("followedBy")) |
| v1.addEdge("followedBy", v2, T.id, Integer.parseInt(e.id().toString()), "weight", e.value("weight")); |
| else if (e.label().equals("sungBy")) |
| v1.addEdge("sungBy", v2, T.id, Integer.parseInt(e.id().toString())); |
| else if (e.label().equals("writtenBy")) |
| v1.addEdge("writtenBy", v2, T.id, Integer.parseInt(e.id().toString())); |
| else |
| throw new RuntimeException("bah"); |
| |
| }).iterate(); |
| |
| final OutputStream os = new FileOutputStream(tempPath + "grateful-dead.kryo"); |
| GryoWriter.build().create().writeGraph(os, ng); |
| os.close(); |
| |
| final OutputStream os2 = new FileOutputStream(tempPath + "grateful-dead.json"); |
| GraphSONWriter.build().mapper(GraphSONMapper.build().create()).create().writeGraph(os2, g); |
| os2.close(); |
| |
| final OutputStream os3 = new FileOutputStream(tempPath + "grateful-dead.xml"); |
| GraphMLWriter.build().create().writeGraph(os3, g); |
| os3.close(); |
| |
| final OutputStream os4 = new FileOutputStream(tempPath + "grateful-dead-typed.json"); |
| GraphSONWriter.build().mapper(GraphSONMapper.build().embedTypes(true).create()).create().writeGraph(os4, g); |
| os4.close(); |
| } |
| } |