Examples with EdgeLabel org.janusgraph.core.EdgeLabel used on opensource projects

Example 1 with EdgeLabel

use of org.janusgraph.core.EdgeLabel in project janusgraph by JanusGraph.

the class JanusGraphAppTest method createSchema.

@Test
public void createSchema() throws ConfigurationException {
    final JanusGraphApp app = new JanusGraphApp(CONF_FILE);
    final GraphTraversalSource g = app.openGraph();
    app.createSchema();
    final JanusGraph janusGraph = (JanusGraph) g.getGraph();
    final JanusGraphManagement management = janusGraph.openManagement();
    final List<String> vertexLabels = StreamSupport.stream(management.getVertexLabels().spliterator(), false).map(Namifiable::name).collect(Collectors.toList());
    final List<String> expectedVertexLabels = Stream.of("titan", "location", "god", "demigod", "human", "monster").collect(Collectors.toList());
    assertTrue(vertexLabels.containsAll(expectedVertexLabels));
    final List<String> edgeLabels = StreamSupport.stream(management.getRelationTypes(EdgeLabel.class).spliterator(), false).map(Namifiable::name).collect(Collectors.toList());
    final List<String> expectedEdgeLabels = Stream.of("father", "mother", "brother", "pet", "lives", "battled").collect(Collectors.toList());
    assertTrue(edgeLabels.containsAll(expectedEdgeLabels));
    final EdgeLabel father = management.getEdgeLabel("father");
    assertTrue(father.isDirected());
    assertFalse(father.isUnidirected());
    assertEquals(Multiplicity.MANY2ONE, father.multiplicity());
    final List<String> propertyKeys = StreamSupport.stream(management.getRelationTypes(PropertyKey.class).spliterator(), false).map(Namifiable::name).collect(Collectors.toList());
    final List<String> expectedPropertyKeys = Stream.of("name", "age", "time", "place", "reason").collect(Collectors.toList());
    assertTrue(propertyKeys.containsAll(expectedPropertyKeys));
    final PropertyKey place = management.getPropertyKey("place");
    assertEquals(Cardinality.SINGLE, place.cardinality());
    assertEquals(Geoshape.class, place.dataType());
    final JanusGraphIndex nameIndex = management.getGraphIndex("nameIndex");
    assertTrue(nameIndex.isCompositeIndex());
    assertTrue(nameIndex.getIndexedElement().equals(JanusGraphVertex.class));
    final PropertyKey[] nameIndexKeys = nameIndex.getFieldKeys();
    assertEquals(1, nameIndexKeys.length);
    assertEquals("name", nameIndexKeys[0].name());
}

Example 2 with EdgeLabel

use of org.janusgraph.core.EdgeLabel in project janusgraph by JanusGraph.

the class AbstractIndexManagementIT method testRepairRelationIndex.

@Test
public void testRepairRelationIndex() throws InterruptedException, BackendException, ExecutionException {
    tx.commit();
    mgmt.commit();
    // Load the "Graph of the Gods" sample data (WITHOUT mixed index coverage)
    GraphOfTheGodsFactory.loadWithoutMixedIndex(graph, true);
    // Create and enable a relation index on lives edges by reason
    JanusGraphManagement m = graph.openManagement();
    PropertyKey reason = m.getPropertyKey("reason");
    EdgeLabel lives = m.getEdgeLabel("lives");
    m.buildEdgeIndex(lives, "livesByReason", Direction.BOTH, Order.decr, reason);
    m.commit();
    graph.tx().commit();
    // Block until the SchemaStatus transitions to REGISTERED
    assertTrue(ManagementSystem.awaitRelationIndexStatus(graph, "livesByReason", "lives").status(SchemaStatus.REGISTERED).call().getSucceeded());
    m = graph.openManagement();
    RelationTypeIndex index = m.getRelationIndex(m.getRelationType("lives"), "livesByReason");
    m.updateIndex(index, SchemaAction.ENABLE_INDEX);
    m.commit();
    graph.tx().commit();
    // Block until the SchemaStatus transitions to ENABLED
    assertTrue(ManagementSystem.awaitRelationIndexStatus(graph, "livesByReason", "lives").status(SchemaStatus.ENABLED).call().getSucceeded());
    // Run a query that hits the index but erroneously returns nothing because we haven't repaired yet
    // assertFalse(graph.query().has("reason", "no fear of death").edges().iterator().hasNext());
    // Repair
    MapReduceIndexManagement mri = new MapReduceIndexManagement(graph);
    m = graph.openManagement();
    index = m.getRelationIndex(m.getRelationType("lives"), "livesByReason");
    ScanMetrics metrics = mri.updateIndex(index, SchemaAction.REINDEX).get();
    assertEquals(8, metrics.getCustom(IndexRepairJob.ADDED_RECORDS_COUNT));
}

Example 3 with EdgeLabel

use of org.janusgraph.core.EdgeLabel in project janusgraph by JanusGraph.

the class GraphOfTheGodsFactory method load.

public static void load(final JanusGraph graph, String mixedIndexName, boolean uniqueNameCompositeIndex) {
    if (graph instanceof StandardJanusGraph) {
        Preconditions.checkState(mixedIndexNullOrExists((StandardJanusGraph) graph, mixedIndexName), ERR_NO_INDEXING_BACKEND, mixedIndexName);
    }
    // Create Schema
    JanusGraphManagement management = graph.openManagement();
    final PropertyKey name = management.makePropertyKey("name").dataType(String.class).make();
    JanusGraphManagement.IndexBuilder nameIndexBuilder = management.buildIndex("name", Vertex.class).addKey(name);
    if (uniqueNameCompositeIndex)
        nameIndexBuilder.unique();
    JanusGraphIndex nameIndex = nameIndexBuilder.buildCompositeIndex();
    management.setConsistency(nameIndex, ConsistencyModifier.LOCK);
    final PropertyKey age = management.makePropertyKey("age").dataType(Integer.class).make();
    if (null != mixedIndexName)
        management.buildIndex("vertices", Vertex.class).addKey(age).buildMixedIndex(mixedIndexName);
    final PropertyKey time = management.makePropertyKey("time").dataType(Integer.class).make();
    final PropertyKey reason = management.makePropertyKey("reason").dataType(String.class).make();
    final PropertyKey place = management.makePropertyKey("place").dataType(Geoshape.class).make();
    if (null != mixedIndexName)
        management.buildIndex("edges", Edge.class).addKey(reason).addKey(place).buildMixedIndex(mixedIndexName);
    management.makeEdgeLabel("father").multiplicity(Multiplicity.MANY2ONE).make();
    management.makeEdgeLabel("mother").multiplicity(Multiplicity.MANY2ONE).make();
    EdgeLabel battled = management.makeEdgeLabel("battled").signature(time).make();
    management.buildEdgeIndex(battled, "battlesByTime", Direction.BOTH, Order.decr, time);
    management.makeEdgeLabel("lives").signature(reason).make();
    management.makeEdgeLabel("pet").make();
    management.makeEdgeLabel("brother").make();
    management.makeVertexLabel("titan").make();
    management.makeVertexLabel("location").make();
    management.makeVertexLabel("god").make();
    management.makeVertexLabel("demigod").make();
    management.makeVertexLabel("human").make();
    management.makeVertexLabel("monster").make();
    management.commit();
    JanusGraphTransaction tx = graph.newTransaction();
    // vertices
    Vertex saturn = tx.addVertex(T.label, "titan", "name", "saturn", "age", 10000);
    Vertex sky = tx.addVertex(T.label, "location", "name", "sky");
    Vertex sea = tx.addVertex(T.label, "location", "name", "sea");
    Vertex jupiter = tx.addVertex(T.label, "god", "name", "jupiter", "age", 5000);
    Vertex neptune = tx.addVertex(T.label, "god", "name", "neptune", "age", 4500);
    Vertex hercules = tx.addVertex(T.label, "demigod", "name", "hercules", "age", 30);
    Vertex alcmene = tx.addVertex(T.label, "human", "name", "alcmene", "age", 45);
    Vertex pluto = tx.addVertex(T.label, "god", "name", "pluto", "age", 4000);
    Vertex nemean = tx.addVertex(T.label, "monster", "name", "nemean");
    Vertex hydra = tx.addVertex(T.label, "monster", "name", "hydra");
    Vertex cerberus = tx.addVertex(T.label, "monster", "name", "cerberus");
    Vertex tartarus = tx.addVertex(T.label, "location", "name", "tartarus");
    // edges
    jupiter.addEdge("father", saturn);
    jupiter.addEdge("lives", sky, "reason", "loves fresh breezes");
    jupiter.addEdge("brother", neptune);
    jupiter.addEdge("brother", pluto);
    neptune.addEdge("lives", sea).property("reason", "loves waves");
    neptune.addEdge("brother", jupiter);
    neptune.addEdge("brother", pluto);
    hercules.addEdge("father", jupiter);
    hercules.addEdge("mother", alcmene);
    hercules.addEdge("battled", nemean, "time", 1, "place", Geoshape.point(38.1f, 23.7f));
    hercules.addEdge("battled", hydra, "time", 2, "place", Geoshape.point(37.7f, 23.9f));
    hercules.addEdge("battled", cerberus, "time", 12, "place", Geoshape.point(39f, 22f));
    pluto.addEdge("brother", jupiter);
    pluto.addEdge("brother", neptune);
    pluto.addEdge("lives", tartarus, "reason", "no fear of death");
    pluto.addEdge("pet", cerberus);
    cerberus.addEdge("lives", tartarus);
    // commit the transaction to disk
    tx.commit();
}

Example 4 with EdgeLabel

use of org.janusgraph.core.EdgeLabel in project janusgraph by JanusGraph.

the class JanusGraphTest method testConsistencyEnforcement.

/* ==================================================================================
                            CONSISTENCY
     ==================================================================================*/
/**
 * Tests the correct application of ConsistencyModifiers across transactional boundaries
 */
@Test
public void testConsistencyEnforcement() {
    PropertyKey uid = makeVertexIndexedUniqueKey("uid", Integer.class);
    PropertyKey name = makeKey("name", String.class);
    mgmt.setConsistency(uid, ConsistencyModifier.LOCK);
    mgmt.setConsistency(name, ConsistencyModifier.LOCK);
    mgmt.setConsistency(mgmt.getGraphIndex("uid"), ConsistencyModifier.LOCK);
    EdgeLabel knows = mgmt.makeEdgeLabel("knows").multiplicity(Multiplicity.SIMPLE).make();
    EdgeLabel spouse = mgmt.makeEdgeLabel("spouse").multiplicity(Multiplicity.ONE2ONE).make();
    EdgeLabel connect = mgmt.makeEdgeLabel("connect").multiplicity(Multiplicity.MULTI).make();
    EdgeLabel related = mgmt.makeEdgeLabel("related").multiplicity(Multiplicity.MULTI).make();
    mgmt.setConsistency(knows, ConsistencyModifier.LOCK);
    mgmt.setConsistency(spouse, ConsistencyModifier.LOCK);
    mgmt.setConsistency(related, ConsistencyModifier.FORK);
    finishSchema();
    name = tx.getPropertyKey("name");
    connect = tx.getEdgeLabel("connect");
    related = tx.getEdgeLabel("related");
    JanusGraphVertex v1 = tx.addVertex("uid", 1);
    JanusGraphVertex v2 = tx.addVertex("uid", 2);
    JanusGraphVertex v3 = tx.addVertex("uid", 3);
    Edge e1 = v1.addEdge(connect.name(), v2, name.name(), "e1");
    Edge e2 = v1.addEdge(related.name(), v2, name.name(), "e2");
    newTx();
    v1 = getV(tx, v1);
    /*
         ==== check fork, no fork behavior
         */
    long e1id = getId(e1);
    long e2id = getId(e2);
    e1 = Iterables.getOnlyElement(v1.query().direction(Direction.OUT).labels("connect").edges());
    assertEquals("e1", e1.value("name"));
    assertEquals(e1id, getId(e1));
    e2 = Iterables.getOnlyElement(v1.query().direction(Direction.OUT).labels("related").edges());
    assertEquals("e2", e2.value("name"));
    assertEquals(e2id, getId(e2));
    // Update edges - one should simply update, the other fork
    e1.property("name", "e1.2");
    e2.property("name", "e2.2");
    newTx();
    v1 = getV(tx, v1);
    e1 = Iterables.getOnlyElement(v1.query().direction(Direction.OUT).labels("connect").edges());
    assertEquals("e1.2", e1.value("name"));
    // should have same id
    assertEquals(e1id, getId(e1));
    e2 = Iterables.getOnlyElement(v1.query().direction(Direction.OUT).labels("related").edges());
    assertEquals("e2.2", e2.value("name"));
    // should have different id since forked
    assertNotEquals(e2id, getId(e2));
    clopen();
    /*
         === check cross transaction
         */
    final Random random = new Random();
    final long[] vertexIds = { getId(v1), getId(v2), getId(v3) };
    // 1) Index uniqueness
    executeLockConflictingTransactionJobs(graph, new TransactionJob() {

        private int pos = 0;

        @Override
        public void run(JanusGraphTransaction tx) {
            JanusGraphVertex u = getV(tx, vertexIds[pos++]);
            u.property(VertexProperty.Cardinality.single, "uid", 5);
        }
    });
    // 2) Property out-uniqueness
    executeLockConflictingTransactionJobs(graph, tx -> {
        final JanusGraphVertex u = getV(tx, vertexIds[0]);
        u.property(VertexProperty.Cardinality.single, "name", "v" + random.nextInt(10));
    });
    // 3) knows simpleness
    executeLockConflictingTransactionJobs(graph, tx -> {
        final JanusGraphVertex u1 = getV(tx, vertexIds[0]), u2 = getV(tx, vertexIds[1]);
        u1.addEdge("knows", u2);
    });
    // 4) knows one2one (in 2 separate configurations)
    executeLockConflictingTransactionJobs(graph, new TransactionJob() {

        private int pos = 1;

        @Override
        public void run(JanusGraphTransaction tx) {
            final JanusGraphVertex u1 = getV(tx, vertexIds[0]), u2 = getV(tx, vertexIds[pos++]);
            u1.addEdge("spouse", u2);
        }
    });
    executeLockConflictingTransactionJobs(graph, new TransactionJob() {

        private int pos = 1;

        @Override
        public void run(JanusGraphTransaction tx) {
            final JanusGraphVertex u1 = getV(tx, vertexIds[pos++]), u2 = getV(tx, vertexIds[0]);
            u1.addEdge("spouse", u2);
        }
    });
    // ######### TRY INVALID CONSISTENCY
    try {
        // Fork does not apply to constrained types
        mgmt.setConsistency(mgmt.getPropertyKey("name"), ConsistencyModifier.FORK);
        fail();
    } catch (IllegalArgumentException ignored) {
    }
}

Example 5 with EdgeLabel

use of org.janusgraph.core.EdgeLabel in project janusgraph by JanusGraph.

the class JanusGraphTest method testConcurrentConsistencyEnforcement.

@Test
public void testConcurrentConsistencyEnforcement() throws Exception {
    PropertyKey name = mgmt.makePropertyKey("name").dataType(String.class).cardinality(Cardinality.SINGLE).make();
    JanusGraphIndex nameIndex = mgmt.buildIndex("name", Vertex.class).addKey(name).unique().buildCompositeIndex();
    mgmt.setConsistency(nameIndex, ConsistencyModifier.LOCK);
    EdgeLabel married = mgmt.makeEdgeLabel("married").multiplicity(Multiplicity.ONE2ONE).make();
    mgmt.setConsistency(married, ConsistencyModifier.LOCK);
    mgmt.makeEdgeLabel("friend").multiplicity(Multiplicity.MULTI).make();
    finishSchema();
    JanusGraphVertex baseV = tx.addVertex("name", "base");
    newTx();
    final long baseVid = getId(baseV);
    final String nameA = "a", nameB = "b";
    final int parallelThreads = 4;
    int numSuccess = executeParallelTransactions(tx -> {
        final JanusGraphVertex a = tx.addVertex();
        final JanusGraphVertex base = getV(tx, baseVid);
        base.addEdge("married", a);
    }, parallelThreads);
    assertTrue("At most 1 tx should succeed: " + numSuccess, numSuccess <= 1);
    numSuccess = executeParallelTransactions(tx -> {
        tx.addVertex("name", nameA);
        final JanusGraphVertex b = tx.addVertex("name", nameB);
        b.addEdge("friend", b);
    }, parallelThreads);
    newTx();
    final long numA = Iterables.size(tx.query().has("name", nameA).vertices());
    final long numB = Iterables.size(tx.query().has("name", nameB).vertices());
    // System.out.println(numA + " - " + numB);
    assertTrue("At most 1 tx should succeed: " + numSuccess, numSuccess <= 1);
    assertTrue(numA <= 1);
    assertTrue(numB <= 1);
}