| /* |
| * 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; |
| |
| import org.apache.commons.configuration.Configuration; |
| import org.apache.tinkerpop.gremlin.process.computer.GraphComputer; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalEngine; |
| import org.apache.tinkerpop.gremlin.process.traversal.TraversalStrategy; |
| import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource; |
| import org.apache.tinkerpop.gremlin.structure.Element; |
| import org.apache.tinkerpop.gremlin.structure.Graph; |
| import org.javatuples.Pair; |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Map; |
| import java.util.Optional; |
| import java.util.Set; |
| |
| /** |
| * Holds objects specified by the test suites supplying them in a static manner to the test cases. |
| * |
| * @author Stephen Mallette (http://stephen.genoprime.com) |
| */ |
| public class GraphManager { |
| private static GraphProvider graphProvider; |
| private static TraversalEngine.Type traversalEngineType; |
| |
| public static GraphProvider setGraphProvider(final GraphProvider graphProvider) { |
| final GraphProvider old = GraphManager.graphProvider; |
| GraphManager.graphProvider = graphProvider; |
| return old; |
| } |
| |
| /** |
| * Gets the {@link GraphProvider} from the current test suite and wraps it in a {@link ManagedGraphProvider}. |
| */ |
| public static GraphProvider getGraphProvider() { |
| return new ManagedGraphProvider(graphProvider); |
| } |
| |
| public static TraversalEngine.Type setTraversalEngineType(final TraversalEngine.Type traversalEngine) { |
| final TraversalEngine.Type old = GraphManager.traversalEngineType; |
| GraphManager.traversalEngineType = traversalEngine; |
| return old; |
| } |
| |
| public static TraversalEngine.Type getTraversalEngineType() { |
| return traversalEngineType; |
| } |
| |
| /** |
| * This class provides a way to intercepts calls to {@link Graph} implementation's {@link GraphProvider} instances. |
| * When {@link #openTestGraph(Configuration)} is called the created object is stored in a list and when tests are |
| * complete the {@link #tryClearGraphs()} is called. When this is called, an attempt is made to close all open graphs. |
| */ |
| public static class ManagedGraphProvider implements GraphProvider, AutoCloseable { |
| private static final Logger logger = LoggerFactory.getLogger(ManagedGraphProvider.class); |
| private final GraphProvider innerGraphProvider; |
| private final List<Pair<Graph, Configuration>> openGraphs = new ArrayList<>(); |
| |
| public ManagedGraphProvider(final GraphProvider innerGraphProvider){ |
| this.innerGraphProvider = innerGraphProvider; |
| } |
| |
| public void tryClearGraphs(){ |
| for(Pair<Graph, Configuration> p : openGraphs) { |
| try { |
| innerGraphProvider.clear(p.getValue0(), p.getValue1()); |
| }catch (Exception e){ |
| logger.warn(String.format("Automatic close of Graph instance [%s] and config [%s] generated failure.", |
| p.getValue0() != null ? p.getValue0().toString() : "null", |
| p.getValue1() != null ? p.getValue1().toString() : "null"), e); |
| } |
| } |
| } |
| |
| @Override |
| public String getWorkingDirectory() { |
| return innerGraphProvider.getWorkingDirectory(); |
| } |
| |
| @Override |
| public GraphTraversalSource traversal(final Graph graph) { |
| return innerGraphProvider.traversal(graph); |
| } |
| |
| @Override |
| public GraphTraversalSource traversal(final Graph graph, final TraversalStrategy... strategies) { |
| return innerGraphProvider.traversal(graph, strategies); |
| } |
| |
| @Override |
| public GraphComputer getGraphComputer(final Graph graph) { |
| return innerGraphProvider.getGraphComputer(graph); |
| } |
| |
| @Override |
| public Graph standardTestGraph(final Class<?> test, final String testMethodName, final LoadGraphWith.GraphData loadGraphWith) { |
| // call the ManagedGraphProvider.openTestGraph() so that the created Graph/Configuration instances |
| // are tracked |
| return openTestGraph(standardGraphConfiguration(test, testMethodName, loadGraphWith)); |
| } |
| |
| @Override |
| public Graph openTestGraph(final Configuration config) { |
| final Graph graph = innerGraphProvider.openTestGraph(config); |
| openGraphs.add(Pair.with(graph, config)); |
| return graph; |
| } |
| |
| @Override |
| public Configuration standardGraphConfiguration(final Class<?> test, final String testMethodName, final LoadGraphWith.GraphData loadGraphWith) { |
| return innerGraphProvider.standardGraphConfiguration(test, testMethodName, loadGraphWith); |
| } |
| |
| @Override |
| public void clear(final Configuration configuration) throws Exception { |
| innerGraphProvider.clear(configuration); |
| } |
| |
| @Override |
| public void clear(final Graph graph, final Configuration configuration) throws Exception { |
| innerGraphProvider.clear(graph, configuration); |
| } |
| |
| @Override |
| public Object convertId(final Object id, final Class<? extends Element> c) { |
| return innerGraphProvider.convertId(id, c); |
| } |
| |
| @Override |
| public String convertLabel(final String label) { |
| return innerGraphProvider.convertLabel(label); |
| } |
| |
| @Override |
| public Configuration newGraphConfiguration(final String graphName, final Class<?> test, final String testMethodName, |
| final Map<String, Object> configurationOverrides, final LoadGraphWith.GraphData loadGraphWith) { |
| return innerGraphProvider.newGraphConfiguration(graphName, test, testMethodName, configurationOverrides, loadGraphWith); |
| } |
| |
| @Override |
| public Configuration newGraphConfiguration(final String graphName, final Class<?> test, final String testMethodName,final LoadGraphWith.GraphData loadGraphWith) { |
| return innerGraphProvider.newGraphConfiguration(graphName, test, testMethodName, loadGraphWith); |
| } |
| |
| @Override |
| public void loadGraphData(final Graph graph, final LoadGraphWith loadGraphWith, final Class testClass, final String testName) { |
| innerGraphProvider.loadGraphData(graph, loadGraphWith, testClass, testName); |
| } |
| |
| @Override |
| public Set<Class> getImplementations() { |
| return innerGraphProvider.getImplementations(); |
| } |
| |
| @Override |
| public Optional<TestListener> getTestListener() { |
| return innerGraphProvider.getTestListener(); |
| } |
| |
| @Override |
| public void close() throws Exception { |
| if (innerGraphProvider instanceof AutoCloseable) |
| ((AutoCloseable) innerGraphProvider).close(); |
| } |
| |
| @Override |
| public Optional<Graph.Features> getStaticFeatures() { |
| return innerGraphProvider.getStaticFeatures(); |
| } |
| } |
| |
| } |