| /* |
| * 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.traversal.strategy.optimization; |
| |
| import org.apache.tinkerpop.gremlin.process.traversal.P; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategies; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__; |
| import org.apache.tinkerpop.gremlin.process.traversal.util.DefaultTraversalStrategies; |
| import org.apache.tinkerpop.gremlin.structure.Vertex; |
| import org.junit.Test; |
| import org.junit.runner.RunWith; |
| import org.junit.runners.Parameterized; |
| |
| import java.util.Arrays; |
| import java.util.Collection; |
| import java.util.Collections; |
| |
| import static org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__.as; |
| import static org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.__.has; |
| import static org.junit.Assert.assertEquals; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| @RunWith(Parameterized.class) |
| public class MatchPredicateStrategyTest { |
| |
| @Parameterized.Parameter(value = 0) |
| public Traversal original; |
| |
| @Parameterized.Parameter(value = 1) |
| public Traversal optimized; |
| |
| @Parameterized.Parameter(value = 2) |
| public Collection<TraversalStrategy> otherStrategies; |
| |
| @Test |
| public void doTest() { |
| final TraversalStrategies strategies = new DefaultTraversalStrategies(); |
| strategies.addStrategies(MatchPredicateStrategy.instance()); |
| for (final TraversalStrategy strategy : this.otherStrategies) { |
| strategies.addStrategies(strategy); |
| } |
| this.original.asAdmin().setStrategies(strategies); |
| this.original.asAdmin().applyStrategies(); |
| assertEquals(this.optimized, this.original); |
| } |
| |
| @Parameterized.Parameters(name = "{0}") |
| public static Iterable<Object[]> generateTestParameters() { |
| |
| return Arrays.asList(new Object[][]{ |
| {__.out().match(as("a").has("name", "marko"), as("a").out().as("b")), __.out().has("name", "marko").as("a").match(as("a").out().as("b")), Collections.singletonList(InlineFilterStrategy.instance())}, // has() pull out |
| {__.out().as("a").match(as("a").has("name", "marko"), as("a").out().as("b")), __.out().as("a").has("name", "marko").as("a").match(as("a").out().as("b")), Collections.singletonList(InlineFilterStrategy.instance())}, // has() pull out |
| {__.out().as("a").out().match(as("a").has("name", "marko"), as("a").out().as("b")), __.out().as("a").out().match(as("a").has("name", "marko"), as("a").out().as("b")), Collections.emptyList()}, // no has() pull out |
| {__.map(__.match(as("a").has("name", "marko"), as("a").out().as("b"))), __.map(__.match(as("a").has("name", "marko"), as("a").out().as("b"))), Collections.emptyList()}, // no has() pull out |
| {__.out().as("c").match(as("a").has("name", "marko"), as("a").out().as("b")), __.out().as("c").match(as("a").has("name", "marko"), as("a").out().as("b")), Collections.emptyList()}, // no has() pull out |
| ///////// |
| {__.match(as("a").out().as("b"), __.where(as("b").out("knows").as("c"))), __.match(as("a").out().as("b"), as("b").where(__.out("knows").as("c"))), Collections.emptyList()}, // make as().where() |
| {__.match(as("a").out().as("b"), __.where("a", P.gt("b"))), __.match(as("a").out().as("b"), __.as("a").where(P.gt("b"))), Collections.emptyList()}, // make as().where() |
| ///////// |
| {__.match(as("a").out().as("b")).where(as("b").filter(has("name")).out("knows").as("c")), __.match(as("a").out().as("b"), as("b").where(has("name").out("knows").as("c"))), Collections.singletonList(InlineFilterStrategy.instance())}, // make as().where() |
| {__.match(as("a").out().as("b")).where("a", P.gt("b")), __.match(as("a").out().as("b"), as("a").where(P.gt("b"))), Collections.emptyList()}, // make as().where() |
| }); |
| } |
| |
| } |