| /* |
| * 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.util; |
| |
| import org.apache.tinkerpop.gremlin.process.computer.ComputerResult; |
| import org.apache.tinkerpop.gremlin.process.computer.traversal.TraversalVertexProgram; |
| import org.apache.tinkerpop.gremlin.process.traversal.Traversal; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalSource; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource; |
| import org.apache.tinkerpop.gremlin.structure.Graph; |
| |
| /** |
| * @author Marko A. Rodriguez (http://markorodriguez.com) |
| */ |
| public final class TraversalScriptHelper { |
| |
| private TraversalScriptHelper() { |
| } |
| |
| public static <S, E> Traversal.Admin<S, E> compute( |
| final Graph graph, |
| final TraversalSource.Builder builder, |
| final String scriptEngineName, |
| final String traversalScript, |
| final Object... bindings) { |
| |
| try { |
| if (builder.create(graph).getGraphComputer().isPresent()) { |
| final TraversalVertexProgram program = TraversalVertexProgram.build().traversal(builder, scriptEngineName, traversalScript, bindings).create(graph); |
| final ComputerResult result = builder.create(graph).getGraphComputer().get().program(program).submit().get(); |
| return program.computerResultTraversal(result); |
| } else { |
| return new TraversalScriptFunction<S, E>(builder, scriptEngineName, traversalScript, bindings).apply(graph); |
| } |
| } catch (final Exception e) { |
| throw new IllegalStateException(e.getMessage(), e); |
| } |
| } |
| |
| public static <S, E> Traversal.Admin<S, E> compute(final String script, final GraphTraversalSource g, final Object... bindings) { |
| return TraversalScriptHelper.compute(g.getGraph().get(), g.asBuilder(), "gremlin-groovy", script, bindings); |
| } |
| } |