Examples with BackgroundTask ai.grakn.engine.task.BackgroundTask used on opensource projects

Example 1 with BackgroundTask

use of ai.grakn.engine.task.BackgroundTask in project grakn by graknlabs.

the class PostProcessingTest method whenCreatingDuplicateResources_EnsureTheyAreMergedInPost.

@Test
public void whenCreatingDuplicateResources_EnsureTheyAreMergedInPost() throws InvalidKBException, InterruptedException, JsonProcessingException {
    String value = "1";
    String sample = "Sample";
    // Create GraknTx With Duplicate Resources
    EmbeddedGraknTx<?> tx = session.open(GraknTxType.WRITE);
    AttributeType<String> attributeType = tx.putAttributeType(sample, AttributeType.DataType.STRING);
    Attribute<String> attribute = attributeType.putAttribute(value);
    tx.commitSubmitNoLogs();
    tx = session.open(GraknTxType.WRITE);
    assertEquals(1, attributeType.instances().count());
    // Check duplicates have been created
    Set<Vertex> resource1 = createDuplicateResource(tx, attributeType, attribute);
    Set<Vertex> resource2 = createDuplicateResource(tx, attributeType, attribute);
    Set<Vertex> resource3 = createDuplicateResource(tx, attributeType, attribute);
    Set<Vertex> resource4 = createDuplicateResource(tx, attributeType, attribute);
    assertEquals(5, attributeType.instances().count());
    // Attribute vertex index
    String resourceIndex = resource1.iterator().next().value(INDEX.name()).toString();
    // Merge the attribute sets
    Set<Vertex> merged = Sets.newHashSet();
    merged.addAll(resource1);
    merged.addAll(resource2);
    merged.addAll(resource3);
    merged.addAll(resource4);
    tx.close();
    // Casting sets as ConceptIds
    Set<ConceptId> resourceConcepts = merged.stream().map(c -> ConceptId.of(Schema.PREFIX_VERTEX + c.id().toString())).collect(toSet());
    // Create Commit Log
    CommitLog commitLog = CommitLog.createDefault(tx.keyspace());
    commitLog.attributes().put(resourceIndex, resourceConcepts);
    // Submit it
    postProcessor.submit(commitLog);
    // Force running the PP job
    engine.server().backgroundTaskRunner().tasks().forEach(BackgroundTask::run);
    Thread.sleep(2000);
    tx = session.open(GraknTxType.READ);
    // Check it's fixed
    assertEquals(1, tx.getAttributeType(sample).instances().count());
    tx.close();
}