| /* |
| * 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.engine; |
| |
| import org.apache.tinkerpop.gremlin.process.computer.Computer; |
| import org.apache.tinkerpop.gremlin.process.computer.GraphComputer; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalEngine; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalSource; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy; |
| 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.Vertex; |
| |
| import java.util.Collections; |
| import java.util.List; |
| import java.util.Optional; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public final class ComputerTraversalEngine implements TraversalEngine { |
| |
| private final transient GraphComputer graphComputer; |
| |
| private ComputerTraversalEngine(final GraphComputer graphComputer) { |
| this.graphComputer = graphComputer; |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| @Override |
| public Type getType() { |
| return Type.COMPUTER; |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| @Override |
| public String toString() { |
| return this.getClass().getSimpleName().toLowerCase(); |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| @Override |
| public Optional<GraphComputer> getGraphComputer() { |
| return Optional.ofNullable(this.graphComputer); |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public static Builder build() { |
| return new Builder(); |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public final static class Builder implements TraversalEngine.Builder { |
| |
| private Class<? extends GraphComputer> graphComputerClass; |
| private int workers = -1; |
| private Traversal<Vertex, Vertex> vertexFilter = null; |
| private Traversal<Vertex, Edge> edgeFilter = null; |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| @Override |
| public List<TraversalStrategy> getWithStrategies() { |
| return Collections.emptyList(); |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public Builder workers(final int workers) { |
| this.workers = workers; |
| return this; |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public Builder computer(final Class<? extends GraphComputer> graphComputerClass) { |
| this.graphComputerClass = graphComputerClass; |
| return this; |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public Builder vertices(final Traversal<Vertex, Vertex> vertexFilter) { |
| this.vertexFilter = vertexFilter; |
| return this; |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public Builder edges(final Traversal<Vertex, Edge> edgeFilter) { |
| this.edgeFilter = edgeFilter; |
| return this; |
| } |
| |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public ComputerTraversalEngine create(final Graph graph) { |
| GraphComputer graphComputer = null == this.graphComputerClass ? graph.compute() : graph.compute(this.graphComputerClass); |
| if (-1 != this.workers) |
| graphComputer = graphComputer.workers(this.workers); |
| if (null != this.vertexFilter) |
| graphComputer = graphComputer.vertices(this.vertexFilter); |
| if (null != this.edgeFilter) |
| graphComputer = graphComputer.edges(this.edgeFilter); |
| return new ComputerTraversalEngine(graphComputer); |
| } |
| |
| /** |
| * @deprecated As of release 3.2.0. Please use {@link Graph#traversal(Class)}. |
| */ |
| @Deprecated |
| public TraversalSource create(final GraphTraversalSource traversalSource) { |
| Computer computer = null == this.graphComputerClass ? Computer.compute() : Computer.compute(this.graphComputerClass); |
| if (-1 != this.workers) |
| computer = computer.workers(this.workers); |
| if (null != this.vertexFilter) |
| computer = computer.vertices(this.vertexFilter); |
| if (null != this.edgeFilter) |
| computer = computer.edges(this.edgeFilter); |
| return traversalSource.withComputer(computer); |
| } |
| } |
| } |