Java Code Examples for com.thinkaurelius.titan.core.schema.TitanManagement#updateIndex()

@Test
public void testRemoveGraphIndex() throws InterruptedException, BackendException, ExecutionException {
    tx.commit();
    mgmt.commit();

    // Load the "Graph of the Gods" sample data
    GraphOfTheGodsFactory.loadWithoutMixedIndex(graph, true);

    // Disable the "name" composite index
    TitanManagement m = graph.openManagement();
    TitanGraphIndex nameIndex = m.getGraphIndex("name");
    m.updateIndex(nameIndex, SchemaAction.DISABLE_INDEX);
    m.commit();
    graph.tx().commit();

    // Block until the SchemaStatus transitions to DISABLED
    assertTrue(ManagementSystem.awaitGraphIndexStatus(graph, "name")
            .status(SchemaStatus.DISABLED).call().getSucceeded());

    // Remove index
    MapReduceIndexManagement mri = new MapReduceIndexManagement(graph);
    m = graph.openManagement();
    TitanGraphIndex index = m.getGraphIndex("name");
    ScanMetrics metrics = mri.updateIndex(index, SchemaAction.REMOVE_INDEX).get();

    assertEquals(12, metrics.getCustom(IndexRemoveJob.DELETED_RECORDS_COUNT));
}
 

@Test
public void testRemoveRelationIndex() throws InterruptedException, BackendException, ExecutionException {
    tx.commit();
    mgmt.commit();

    // Load the "Graph of the Gods" sample data
    GraphOfTheGodsFactory.loadWithoutMixedIndex(graph, true);

    // Disable the "battlesByTime" index
    TitanManagement m = graph.openManagement();
    RelationType battled = m.getRelationType("battled");
    RelationTypeIndex battlesByTime = m.getRelationIndex(battled, "battlesByTime");
    m.updateIndex(battlesByTime, SchemaAction.DISABLE_INDEX);
    m.commit();
    graph.tx().commit();

    // Block until the SchemaStatus transitions to DISABLED
    assertTrue(ManagementSystem.awaitRelationIndexStatus(graph, "battlesByTime", "battled")
            .status(SchemaStatus.DISABLED).call().getSucceeded());

    // Remove index
    MapReduceIndexManagement mri = new MapReduceIndexManagement(graph);
    m = graph.openManagement();
    battled = m.getRelationType("battled");
    battlesByTime = m.getRelationIndex(battled, "battlesByTime");
    ScanMetrics metrics = mri.updateIndex(battlesByTime, SchemaAction.REMOVE_INDEX).get();

    assertEquals(6, metrics.getCustom(IndexRemoveJob.DELETED_RECORDS_COUNT));
}
 

@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
    TitanManagement 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));
}
 

@Test
public void testRepairGraphIndex() 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 graph index on age
    TitanManagement m = graph.openManagement();
    PropertyKey age = m.getPropertyKey("age");
    m.buildIndex("verticesByAge", Vertex.class).addKey(age).buildCompositeIndex();
    m.commit();
    graph.tx().commit();

    // Block until the SchemaStatus transitions to REGISTERED
    assertTrue(ManagementSystem.awaitGraphIndexStatus(graph, "verticesByAge")
            .status(SchemaStatus.REGISTERED).call().getSucceeded());

    m = graph.openManagement();
    TitanGraphIndex index = m.getGraphIndex("verticesByAge");
    m.updateIndex(index, SchemaAction.ENABLE_INDEX);
    m.commit();
    graph.tx().commit();

    // Block until the SchemaStatus transitions to ENABLED
    assertTrue(ManagementSystem.awaitGraphIndexStatus(graph, "verticesByAge")
            .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("age", 10000).vertices().iterator().hasNext());

    // Repair
    MapReduceIndexManagement mri = new MapReduceIndexManagement(graph);
    m = graph.openManagement();
    index = m.getGraphIndex("verticesByAge");
    ScanMetrics metrics = mri.updateIndex(index, SchemaAction.REINDEX).get();
    assertEquals(6, metrics.getCustom(IndexRepairJob.ADDED_RECORDS_COUNT));

    // Test the index
    Iterable<TitanVertex> hits = graph.query().has("age", 4500).vertices();
    assertNotNull(hits);
    assertEquals(1, Iterables.size(hits));
    TitanVertex v = Iterables.getOnlyElement(hits);
    assertNotNull(v);

    assertEquals("neptune", v.value("name"));
}