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org.umlg.sqlg.test.gremlincompile.TestPathStep Maven / Gradle / Ivy
package org.umlg.sqlg.test.gremlincompile;
import org.apache.tinkerpop.gremlin.AbstractGremlinTest;
import org.apache.tinkerpop.gremlin.process.traversal.Path;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.DefaultGraphTraversal;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__;
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.gryo.GryoIo;
import org.apache.tinkerpop.gremlin.structure.io.gryo.GryoReader;
import org.junit.Assert;
import org.junit.Test;
import org.umlg.sqlg.strategy.SqlgGraphStepCompiled;
import org.umlg.sqlg.test.BaseTest;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
/**
* Created by pieter on 2015/08/30.
*/
public class TestPathStep extends BaseTest {
@Test
public void g_V_hasXlabel_personX_asXaX_localXoutXcreatedX_asXbXX_selectXa_bX_byXnameX_by() throws IOException {
Graph graph = this.sqlgGraph;
final GraphReader reader = GryoReader.build()
.mapper(graph.io(GryoIo.build()).mapper().create())
.create();
try (final InputStream stream = AbstractGremlinTest.class.getResourceAsStream("/tinkerpop-modern.kryo")) {
reader.readGraph(stream, graph);
}
assertModernGraph(graph, true, false);
GraphTraversalSource g = graph.traversal();
DefaultGraphTraversal> traversal = (DefaultGraphTraversal>) g
.V().has(T.label, "person").as("a").local(__.out("created").as("b")).select("a", "b").by("name").by(T.id);
Assert.assertEquals(4, traversal.getSteps().size());
printTraversalForm(traversal);
Assert.assertTrue(traversal.getSteps().get(0) instanceof SqlgGraphStepCompiled);
Assert.assertEquals(4, traversal.getSteps().size());
int counter = 0;
while (traversal.hasNext()) {
final Map map = traversal.next();
counter++;
Assert.assertEquals(2, map.size());
if (map.get("a").equals("marko")) {
Assert.assertEquals(convertToVertexId("lop"), map.get("b"));
} else if (map.get("a").equals("josh")) {
Assert.assertTrue(convertToVertexId("lop").equals(map.get("b")) || convertToVertexId("ripple").equals(map.get("b")));
} else if (map.get("a").equals("peter")) {
Assert.assertEquals(convertToVertexId("lop"), map.get("b"));
} else {
Assert.fail("The following map should not have been returned: " + map);
}
}
Assert.assertEquals(4, counter);
}
@Test
public void testGraphPathWithBy() throws IOException {
Graph graph = this.sqlgGraph;
final GraphReader reader = GryoReader.build()
.mapper(graph.io(GryoIo.build()).mapper().create())
.create();
try (final InputStream stream = AbstractGremlinTest.class.getResourceAsStream("/tinkerpop-modern.kryo")) {
reader.readGraph(stream, graph);
}
assertModernGraph(graph, true, false);
DefaultGraphTraversal traversal1 = (DefaultGraphTraversal) graph.traversal().V().out().path();
Assert.assertEquals(3, traversal1.getSteps().size());
List paths = traversal1.toList();
Assert.assertEquals(2, traversal1.getSteps().size());
Assert.assertEquals(6, paths.size());
DefaultGraphTraversal traversal = (DefaultGraphTraversal) graph.traversal().V().out().path().by("age").by("name");
Assert.assertEquals(3, traversal.getSteps().size());
printTraversalForm(traversal);
Assert.assertEquals(2, traversal.getSteps().size());
int counter = 0;
final Set names = new HashSet<>();
while (traversal.hasNext()) {
counter++;
final Path path = traversal.next();
System.out.println(path);
names.add(path.get(1));
}
Assert.assertEquals(6, counter);
Assert.assertEquals(4, names.size());
}
@Test
public void testVertexPathWithBy() throws IOException {
Graph graph = this.sqlgGraph;
final GraphReader reader = GryoReader.build()
.mapper(graph.io(GryoIo.build()).mapper().create())
.create();
try (final InputStream stream = AbstractGremlinTest.class.getResourceAsStream("/tinkerpop-modern.kryo")) {
reader.readGraph(stream, graph);
}
assertModernGraph(graph, true, false);
GraphTraversalSource g = graph.traversal();
DefaultGraphTraversal traversal = (DefaultGraphTraversal) g
.V(convertToVertexId("marko")).out().path().by("age").by("name");
Assert.assertEquals(3, traversal.getSteps().size());
printTraversalForm(traversal);
Assert.assertEquals(2, traversal.getSteps().size());
int counter = 0;
final Set names = new HashSet<>();
while (traversal.hasNext()) {
counter++;
final Path path = traversal.next();
System.out.println(path);
Assert.assertEquals(Integer.valueOf(29), path.get(0));
Assert.assertTrue(path.get(1).equals("josh") || path.get(1).equals("vadas") || path.get(1).equals("lop"));
names.add(path.get(1));
}
Assert.assertEquals(3, counter);
Assert.assertEquals(3, names.size());
}
@Test
public void testEdge() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
this.sqlgGraph.tx().commit();
DefaultGraphTraversal traversal = (DefaultGraphTraversal) this.sqlgGraph.traversal().V(a1.id()).bothE();
Assert.assertEquals(2, traversal.getSteps().size());
final List v1Edges = traversal.toList();
Assert.assertEquals(1, traversal.getSteps().size());
Assert.assertEquals(2, v1Edges.size());
Assert.assertTrue(v1Edges.get(0) instanceof Edge);
Assert.assertTrue(v1Edges.get(1) instanceof Edge);
}
@Test
public void testVertexPathBackToSelf() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
a1.addEdge("ab", b1);
this.sqlgGraph.tx().commit();
DefaultGraphTraversal gt = (DefaultGraphTraversal) this.sqlgGraph.traversal().V(a1).out().in().path();
Assert.assertEquals(4, gt.getSteps().size());
Path p = gt.next();
Assert.assertEquals(2, gt.getSteps().size());
Assert.assertEquals(3, p.size());
Assert.assertEquals(a1, p.get(0));
Assert.assertEquals(b1, p.get(1));
Assert.assertEquals(a1, p.get(2));
}
@Test
public void testSimplePath() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1", "age", 1);
this.sqlgGraph.tx().commit();
DefaultGraphTraversal traversal = (DefaultGraphTraversal) this.sqlgGraph.traversal()
.V().as("a").has("name", "a1").as("b").has("age", 1).as("c").path();
Assert.assertEquals(3, traversal.getSteps().size());
List paths = traversal.toList();
Assert.assertTrue(traversal.getSteps().get(0) instanceof SqlgGraphStepCompiled);
Assert.assertEquals(3, traversal.getSteps().size());
Assert.assertEquals(1, paths.size());
Assert.assertEquals(1, paths.get(0).size());
}
@Test
public void g_V_asXaX_hasXname_markoX_asXbX_hasXage_29X_asXcX_path() throws IOException {
Graph graph = this.sqlgGraph;
final GraphReader reader = GryoReader.build()
.mapper(graph.io(GryoIo.build()).mapper().create())
.create();
try (final InputStream stream = AbstractGremlinTest.class.getResourceAsStream("/tinkerpop-modern.kryo")) {
reader.readGraph(stream, graph);
}
assertModernGraph(graph, true, false);
GraphTraversalSource g = graph.traversal();
DefaultGraphTraversal traversal = (DefaultGraphTraversal) g
.V().as("a").has("name", "marko").as("b").has("age", 29).as("c").path();
Assert.assertEquals(3, traversal.getSteps().size());
printTraversalForm(traversal);
Assert.assertTrue(traversal.getSteps().get(0) instanceof SqlgGraphStepCompiled);
Assert.assertEquals(3, traversal.getSteps().size());
final Path path = traversal.next();
Assert.assertFalse(traversal.hasNext());
Assert.assertEquals(1, path.size());
Assert.assertTrue(path.hasLabel("a"));
Assert.assertTrue(path.hasLabel("b"));
Assert.assertTrue(path.hasLabel("c"));
Assert.assertEquals(1, path.labels().size());
Assert.assertEquals(3, path.labels().get(0).size());
}
@Test
public void testNameWithMultipleSameLabel() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex a2 = this.sqlgGraph.addVertex(T.label, "A", "name", "a2");
Vertex a3 = this.sqlgGraph.addVertex(T.label, "A", "name", "a3");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
Vertex b3 = this.sqlgGraph.addVertex(T.label, "B", "name", "b3");
a1.addEdge("ab", b1);
a2.addEdge("ab", b2);
a3.addEdge("ab", b3);
this.sqlgGraph.tx().commit();
DefaultGraphTraversal> traversal = (DefaultGraphTraversal)this.sqlgGraph.traversal()
.V().as("a")
.out().as("a")
.in().as("a")
.select("a", "a", "a");
Assert.assertEquals(4, traversal.getSteps().size());
List> result = traversal.toList();
Assert.assertEquals(2, traversal.getSteps().size());
Assert.assertEquals(3, result.size());
Object o1 = result.get(0).get("a");
Assert.assertTrue(o1 instanceof List);
List ass = (List) o1;
Assert.assertEquals(a1, ass.get(0));
Assert.assertEquals("a1", ass.get(0).value("name"));
Assert.assertEquals(b1, ass.get(1));
Assert.assertEquals("b1", ass.get(1).value("name"));
Assert.assertEquals(a1, ass.get(2));
Assert.assertEquals("a1", ass.get(2).value("name"));
}
@Test
public void testPathStep() {
Vertex a1 = this.sqlgGraph.addVertex(T.label, "A", "name", "a1");
Vertex b1 = this.sqlgGraph.addVertex(T.label, "B", "name", "b1");
Vertex b2 = this.sqlgGraph.addVertex(T.label, "B", "name", "b2");
Vertex b3 = this.sqlgGraph.addVertex(T.label, "B", "name", "b3");
a1.addEdge("ab", b1);
a1.addEdge("ab", b2);
a1.addEdge("ab", b3);
Vertex c1 = this.sqlgGraph.addVertex(T.label, "C", "name", "c1");
Vertex c2 = this.sqlgGraph.addVertex(T.label, "C", "name", "c2");
Vertex c3 = this.sqlgGraph.addVertex(T.label, "C", "name", "c3");
b1.addEdge("bc", c1);
b1.addEdge("bc", c2);
b1.addEdge("bc", c3);
this.sqlgGraph.tx().commit();
DefaultGraphTraversal traversal = (DefaultGraphTraversal) this.sqlgGraph.traversal()
.V().hasLabel("A").out().out().path();
Assert.assertEquals(5, traversal.getSteps().size());
List paths = traversal.toList();
Assert.assertEquals(2, traversal.getSteps().size());
Assert.assertEquals(3, paths.size());
Assert.assertEquals(a1, paths.get(0).get(0));
Assert.assertEquals(a1, paths.get(1).get(0));
Assert.assertEquals(a1, paths.get(2).get(0));
Assert.assertEquals(b1, paths.get(0).get(1));
Assert.assertEquals(b1, paths.get(1).get(1));
Assert.assertEquals(b1, paths.get(2).get(1));
Set cs = new HashSet<>();
cs.add(c1);
cs.add(c2);
cs.add(c3);
Assert.assertTrue(cs.remove(paths.get(0).get(2)));
Assert.assertTrue(cs.remove(paths.get(1).get(2)));
Assert.assertTrue(cs.remove(paths.get(2).get(2)));
Assert.assertTrue(cs.isEmpty());
}
}
