Java Code Examples for org.apache.tinkerpop.gremlin.process.traversal.Traversal#iterate()

@Test
@LoadGraphWith(CREW)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = FEATURE_ADD_VERTICES)
@FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = FEATURE_ADD_EDGES)
@FeatureRequirement(featureClass = Graph.Features.VertexFeatures.class, feature = FEATURE_USER_SUPPLIED_IDS)
@FeatureRequirement(featureClass = Graph.Features.EdgeFeatures.class, feature = FEATURE_USER_SUPPLIED_IDS)
public void g_withSideEffectXsgX_V_hasXname_danielXout_capXsgX() throws Exception {
    final Configuration config = graphProvider.newGraphConfiguration("subgraph", this.getClass(), name.getMethodName(), CREW);
    graphProvider.clear(config);
    final Graph subgraph = graphProvider.openTestGraph(config);
    /////
    final Traversal<Vertex, Vertex> traversal = get_g_withSideEffectXsgX_V_hasXname_danielX_outE_subgraphXsgX_inV(subgraph);
    printTraversalForm(traversal);
    traversal.iterate();
    assertVertexEdgeCounts(subgraph, 3, 2);

    final List<String> locations = subgraph.traversal().V().has("name", "daniel").<String>values("location").toList();
    assertThat(locations, contains("spremberg", "kaiserslautern", "aachen"));

    graphProvider.clear(subgraph, config);
}
 

@Test
public void g_io_writeXjsonX() throws IOException {
    loadModern();
    final String fileToWrite = TestHelper.generateTempFile(WriteTest.class,"tinkerpop-modern-v3d0", ".json").getAbsolutePath().replace('\\', '/');

    final File f = new File(fileToWrite);
    assertThat(f.length() == 0, is(true));

    final Traversal<Object,Object> traversal =  this.sqlgGraph.traversal()
            .io(fileToWrite)
            .with(IO.writer, IO.graphson)
            .with(IO.registry, SqlgIoRegistryV3.instance())
            .write();
    printTraversalForm(traversal);
    traversal.iterate();

    assertThat(f.length() > 0, is(true));
}
 

@Test
public void shouldBeVerified() {
    final Traversal copy = copyAndConfigureTraversal(traversal);

    if (legalTraversal) {
        copy.asAdmin().applyStrategies();

        // try to also apply strategies with iterate() so that a NoneStep is added - for consistency sake we want
        // to be able to run a profile and get no result back with this.
        final Traversal forIteration = copyAndConfigureTraversal(traversal);
        forIteration.iterate();
    } else {
        try {
            copy.asAdmin().applyStrategies();
            fail("The strategy should not allow traversal: " + this.traversal);
        } catch (IllegalStateException ise) {
            assertTrue(true);
        }
    }
}
 

@Test
@FeatureRequirement(featureClass = Graph.Features.GraphFeatures.class, feature = Graph.Features.GraphFeatures.FEATURE_IO_READ)
public void g_io_read_withXreader_gryoX() throws IOException {
    final String fileToRead = TestHelper.generateTempFileFromResource(ReadTest.class, GryoResourceAccess.class, "tinkerpop-modern-v3d0.kryo", "").getAbsolutePath().replace('\\', '/');
    final Traversal<Object,Object> traversal = get_g_io_read_withXreader_gryoX(fileToRead);
    printTraversalForm(traversal);
    traversal.iterate();

    if (graph instanceof RemoteGraph) {
        assertEquals(6L, g.V().count().next().longValue());
        assertEquals(6L, g.E().count().next().longValue());
    } else {
        IoTest.assertModernGraph(graph, false, true);
    }
}
 

@Test
@LoadGraphWith(MODERN)
public void g_V_whereXinXcreatedX_count_isX1XX_name_profileXmetricsX() {
    final Traversal<Vertex, String> traversal = get_g_V_whereXinXcreatedX_count_isX1XX_name_profileXmetricsX();
    printTraversalForm(traversal);
    traversal.iterate();
    final TraversalMetrics traversalMetrics = traversal.asAdmin().getSideEffects().get(METRICS_KEY);
    validate_g_V_whereXinXcreatedX_count_isX1XX_name_profile(traversal, traversalMetrics);
}
 

@Test
@LoadGraphWith(MODERN)
public void g_V_matchXa_created_b__b_in_count_isXeqX1XXX_selectXa_bX_profile() {
    final Traversal<Vertex, TraversalMetrics> traversal = get_g_V_matchXa_created_b__b_in_count_isXeqX1XXX_selectXa_bX_profile();
    printTraversalForm(traversal);
    traversal.iterate();
}
 

@Test
@LoadGraphWith(MODERN)
@IgnoreEngine(TraversalEngine.Type.COMPUTER)
public void g_V_sideEffectXThread_sleepX10XX_sideEffectXThread_sleepX5XX_profileXmetricsX() {
    final Traversal<Vertex, Vertex> traversal = get_g_V_sideEffectXThread_sleepX10XX_sideEffectXThread_sleepX5XX_profileXmetricsX();
    printTraversalForm(traversal);
    traversal.iterate();

    // This assertion is really only meant for tinkergraph
    if (graph.getClass().getSimpleName().equals("TinkerGraph"))
        assertEquals("There should be 7 steps in this traversal (counting injected profile steps).", 7, traversal.asAdmin().getSteps().size());

    final TraversalMetrics traversalMetrics = traversal.asAdmin().getSideEffects().get(METRICS_KEY);
    validate_g_V_sideEffectXThread_sleepX10XX_sideEffectXThread_sleepX5XX_profile(traversalMetrics);
}
 

@Test
@LoadGraphWith(GRATEFUL)
public void grateful_V_out_out_profileXmetricsX() {
    final Traversal<Vertex, Vertex> traversal = get_g_V_out_out_profileXmetricsX();
    printTraversalForm(traversal);
    traversal.iterate();
    final TraversalMetrics traversalMetrics = traversal.asAdmin().getSideEffects().get(METRICS_KEY);
    validate_g_V_out_out_profile_grateful(traversalMetrics);
}
 

@Test
@LoadGraphWith(MODERN)
public void modern_V_out_out_profileXmetricsX() {
    final Traversal<Vertex, Vertex> traversal = get_g_V_out_out_profileXmetricsX();
    printTraversalForm(traversal);
    traversal.iterate();
    validate_g_V_out_out_profile_modern(traversal, traversal.asAdmin().getSideEffects().get(METRICS_KEY));
}
 

@Test
public void g_io_write_withXwrite_gryoX() throws IOException {
    loadModern();
    final String fileToWrite = TestHelper.generateTempFile(WriteTest.class, "tinkerpop-modern-v3d0", ".kryo").getAbsolutePath().replace('\\', '/');
    final File f = new File(fileToWrite);
    assertThat(f.length() == 0, is(true));
    final Traversal<Object, Object> traversal = this.sqlgGraph.traversal().io(fileToWrite)
            .with(IO.writer, IO.gryo)
            .with(IO.registry, SqlgIoRegistryV3.instance())
            .write();
    printTraversalForm(traversal);
    traversal.iterate();
    assertThat(f.length() > 0, is(true));
}
 

@Test
@FeatureRequirement(featureClass = Graph.Features.GraphFeatures.class, feature = Graph.Features.GraphFeatures.FEATURE_IO_READ)
public void g_io_read_withXreader_graphsonX() throws IOException {
    final String fileToRead = TestHelper.generateTempFileFromResource(ReadTest.class, GraphSONResourceAccess.class, "tinkerpop-modern-v3d0.json", "").getAbsolutePath().replace('\\', '/');
    final Traversal<Object,Object> traversal = get_g_io_read_withXreader_graphsonX(fileToRead);
    printTraversalForm(traversal);
    traversal.iterate();

    if (graph instanceof RemoteGraph) {
        assertEquals(6L, g.V().count().next().longValue());
        assertEquals(6L, g.E().count().next().longValue());
    } else {
        IoTest.assertModernGraph(graph, false, true);
    }
}
 

@Test
@FeatureRequirement(featureClass = Graph.Features.GraphFeatures.class, feature = Graph.Features.GraphFeatures.FEATURE_IO_READ)
public void g_io_readXkryoX() throws IOException {
    final String fileToRead = TestHelper.generateTempFileFromResource(ReadTest.class, GryoResourceAccess.class, "tinkerpop-modern-v3d0.kryo", "").getAbsolutePath().replace('\\', '/');
    final Traversal<Object,Object> traversal = get_g_io_readXkryoX(fileToRead);
    printTraversalForm(traversal);
    traversal.iterate();

    if (graph instanceof RemoteGraph) {
        assertEquals(6L, g.V().count().next().longValue());
        assertEquals(6L, g.E().count().next().longValue());
    } else {
        IoTest.assertModernGraph(graph, false, true);
    }
}
 

@Test
@LoadGraphWith(LoadGraphWith.GraphData.MODERN)
@FeatureRequirement(featureClass = Graph.Features.GraphFeatures.class, feature = Graph.Features.GraphFeatures.FEATURE_IO_WRITE)
public void g_io_writeXxmlX() throws IOException {
    final String fileToWrite = TestHelper.generateTempFile(WriteTest.class,"tinkerpop-modern", ".xml").getAbsolutePath().replace('\\', '/');

    final File f = new File(fileToWrite);
    assertThat(f.length() == 0, is(true));

    final Traversal<Object,Object> traversal = get_g_io_writeXxmlX(fileToWrite);
    printTraversalForm(traversal);
    traversal.iterate();

    assertThat(f.length() > 0, is(true));
}
 

@Test
@LoadGraphWith(LoadGraphWith.GraphData.MODERN)
@FeatureRequirement(featureClass = Graph.Features.GraphFeatures.class, feature = Graph.Features.GraphFeatures.FEATURE_IO_WRITE)
public void g_io_write_withXwriter_graphsonX() throws IOException {
    final String fileToWrite = TestHelper.generateTempFile(WriteTest.class,"tinkerpop-modern-v3d0", ".json").getAbsolutePath().replace('\\', '/');

    final File f = new File(fileToWrite);
    assertThat(f.length() == 0, is(true));

    final Traversal<Object,Object> traversal = get_g_io_write_withXwriter_graphsonX(fileToWrite);
    printTraversalForm(traversal);
    traversal.iterate();

    assertThat(f.length() > 0, is(true));
}
 

@Test
@LoadGraphWith(MODERN)
public void testProfileStrategyCallbackSideEffect() {
    final Traversal<Vertex, Vertex> t = get_g_V_out_out_profileXmetricsX();
    MockStep mockStep = new MockStep(t.asAdmin());
    t.asAdmin().addStep(3, mockStep);
    t.iterate();
    assertTrue(mockStep.callbackCalled);

    if (!onGraphComputer(t.asAdmin())) {
        final TraversalMetrics traversalMetrics = t.asAdmin().getSideEffects().get(METRICS_KEY);
        assertEquals(100, traversalMetrics.getMetrics(3).getCount("bogusCount").longValue());
    }
}
 

@Test
@LoadGraphWith(LoadGraphWith.GraphData.MODERN)
@FeatureRequirement(featureClass = Graph.Features.GraphFeatures.class, feature = Graph.Features.GraphFeatures.FEATURE_IO_WRITE)
public void g_io_write_withXwrite_gryoX() throws IOException {
    final String fileToWrite = TestHelper.generateTempFile(WriteTest.class, "tinkerpop-modern-v3d0", ".kryo").getAbsolutePath().replace('\\', '/');

    final File f = new File(fileToWrite);
    assertThat(f.length() == 0, is(true));

    final Traversal<Object,Object> traversal = get_g_io_write_withXwriter_gryoX(fileToWrite);
    printTraversalForm(traversal);
    traversal.iterate();

    assertThat(f.length() > 0, is(true));
}
 

@Test
@LoadGraphWith(MODERN)
public void g_V_matchXa_created_b__b_in_count_isXeqX1XXX_selectXa_bX_profileXmetricsX() {
    final Traversal<Vertex, Map<String, String>> traversal = get_g_V_matchXa_created_b__b_in_count_isXeqX1XXX_selectXa_bX_profileXmetricsX();
    printTraversalForm(traversal);
    traversal.iterate();
}
 

@LoadGraphWith(MODERN)
public void g_V_out_asXcX_matchXb_knows_a__c_created_eX_selectXcX() throws Exception {
    final Traversal<Vertex, String> traversal = get_g_V_out_asXcX_matchXb_knows_a__c_created_eX_selectXcX();
    try {
        printTraversalForm(traversal);
        traversal.iterate();
        fail("Should have tossed an exception because match pattern is not solvable");
    } catch (Exception ex) {
        //final Throwable root = ExceptionUtils.getRootCause(ex);
        //assertThat(root.getMessage(), startsWith("The provided match pattern is unsolvable:"));
    }
}
 

@Test
@LoadGraphWith(MODERN)
public void g_VXv4X_hasXage_gt_30X() {
    final Traversal<Vertex, Vertex> traversalJosh = get_g_VXv1X_hasXage_gt_30X(convertToVertex(graph,"josh"));
    printTraversalForm(traversalJosh);
    assertTrue(traversalJosh.hasNext());
    traversalJosh.iterate();
}
 

@LoadGraphWith(MODERN)
public void g_V_matchXa_knows_b__c_knows_bX() {
    final Traversal<Vertex, Map<String, Vertex>> traversal = get_g_V_matchXa_knows_b__c_knows_bX();
    try {
        printTraversalForm(traversal);
        traversal.iterate();
        fail("Should have tossed an exception because match pattern is not solvable");
    } catch (Exception ex) {
        //final Throwable root = ExceptionUtils.getRootCause(ex);
        //assertThat(root.getMessage(), startsWith("The provided match pattern is unsolvable:"));
    }
}