Examples with Label org.neo4j.graphdb.Label used on opensource projects

Example 61 with Label

use of org.neo4j.graphdb.Label in project neo4j by neo4j.

the class PECListingIT method shouldHaveCorrectIndentationsInSchemaListing.

@Test
public void shouldHaveCorrectIndentationsInSchemaListing() throws Exception {
    // GIVEN
    Label label = label("Person");
    RelationshipType relType = RelationshipType.withName("KNOWS");
    // WHEN
    SchemaHelper.createUniquenessConstraint(db, label, "name");
    SchemaHelper.createNodePropertyExistenceConstraint(db, label, "name");
    SchemaHelper.createRelPropertyExistenceConstraint(db, relType, "since");
    SchemaHelper.awaitIndexes(db);
    // THEN
    executeCommand("schema", "Indexes", "  ON :Person\\(name\\) ONLINE \\(for uniqueness constraint\\)", "Constraints", "  ON \\(person:Person\\) ASSERT person.name IS UNIQUE", "  ON \\(person:Person\\) ASSERT exists\\(person.name\\)", "  ON \\(\\)-\\[knows:KNOWS\\]-\\(\\) ASSERT exists\\(knows.since\\)");
}

Example 62 with Label

use of org.neo4j.graphdb.Label in project elasticsearch-river-neo4j by sksamuel.

the class SimpleIndexingStrategy method build.

@Override
public IndexRequest build(String index, String type, Node node, long version) throws IOException {
    XContentBuilder src = XContentFactory.jsonBuilder().startObject();
    // Store version
    src.field("version", version);
    // Store node labels as array
    ArrayList<String> nodeLabels = new ArrayList<>();
    for (Label key : node.getLabels()) {
        nodeLabels.add(key.name());
    }
    if (nodeLabels.size() > 0) {
        src.array("labels", nodeLabels.toArray());
    }
    for (String key : node.getPropertyKeys()) {
        Object value = node.getProperty(key);
        if (value instanceof Object[]) {
            Object[] array = (Object[]) value;
            src.field(key, array);
        } else {
            src.field(key, value.toString());
        }
    }
    return new IndexRequest(index, type, String.valueOf(node.getId())).source(src);
}

Example 63 with Label

use of org.neo4j.graphdb.Label in project elasticsearch-river-neo4j by sksamuel.

the class SimpleIndexingStrategyTest method thatNodePropertiesAreUsedAsFieldValues.

@Test
public void thatNodePropertiesAreUsedAsFieldValues() throws IOException {
    long id = new Random().nextInt(50000) + 1;
    Node node = mock(Node.class);
    when(node.getId()).thenReturn(id);
    when(node.getPropertyKeys()).thenReturn(Arrays.asList("name", "location", "band"));
    when(node.getProperty("name")).thenReturn("chris martin");
    when(node.getProperty("location")).thenReturn("hampstead");
    when(node.getProperty("band")).thenReturn("coldplay");
    when(node.hasLabel(DynamicLabel.label("User"))).thenReturn(true);
    when(node.getLabels()).thenReturn(new ResourceIterable<Label>() {

        @Override
        public ResourceIterator<Label> iterator() {
            return new ResourceIterator<Label>() {

                private List<Label> labels = Arrays.asList(DynamicLabel.label("User"), DynamicLabel.label("Swedish"));

                private int position = 0;

                @Override
                public void close() {
                }

                @Override
                public boolean hasNext() {
                    boolean result = false;
                    if (position < labels.size()) {
                        result = true;
                    }
                    return result;
                }

                @Override
                public Label next() {
                    Label label = labels.get(position);
                    position++;
                    return label;
                }

                @Override
                public void remove() {
                }
            };
        }
    });
    IndexRequest req = s.build("neo4j-index", "node", node, 12);
    assertEquals("neo4j-index", req.index());
    assertEquals("node", req.type());
    assertEquals(12, req.sourceAsMap().get("version"));
    assertEquals(String.valueOf(id), req.id());
    assertEquals(new ArrayList<String>() {

        {
            add("User");
            add("Swedish");
        }
    }, req.sourceAsMap().get("labels"));
    assertEquals("coldplay", req.sourceAsMap().get("band"));
    assertEquals("hampstead", req.sourceAsMap().get("location"));
    assertEquals("chris martin", req.sourceAsMap().get("name"));
}

Example 64 with Label

use of org.neo4j.graphdb.Label in project neo4j by neo4j.

the class BatchInsertTest method shouldNotAllowDuplicatedIndexes.

@Test
public void shouldNotAllowDuplicatedIndexes() throws Exception {
    // Given
    Label label = label("Person3-" + denseNodeThreshold);
    String property = "name";
    BatchInserter inserter = globalInserter;
    // When
    inserter.createDeferredSchemaIndex(label).on(property).create();
    try {
        inserter.createDeferredSchemaIndex(label).on(property).create();
        fail("Exception expected");
    } catch (ConstraintViolationException e) {
        // Then
        assertEquals("Index for given {label;property} already exists", e.getMessage());
    }
}

Example 65 with Label

use of org.neo4j.graphdb.Label in project neo4j by neo4j.

the class BatchInsertTest method shouldCreateUniquenessConstraint.

@Test
public void shouldCreateUniquenessConstraint() throws Exception {
    // Given
    Label label = label("Person");
    String propertyKey = "name";
    String duplicatedValue = "Tom";
    BatchInserter inserter = newBatchInserter();
    // When
    inserter.createDeferredConstraint(label).assertPropertyIsUnique(propertyKey).create();
    // Then
    GraphDatabaseService db = switchToEmbeddedGraphDatabaseService(inserter);
    try {
        try (Transaction tx = db.beginTx()) {
            List<ConstraintDefinition> constraints = Iterables.asList(db.schema().getConstraints());
            assertEquals(1, constraints.size());
            ConstraintDefinition constraint = constraints.get(0);
            assertEquals(label.name(), constraint.getLabel().name());
            assertEquals(propertyKey, single(constraint.getPropertyKeys()));
            db.createNode(label).setProperty(propertyKey, duplicatedValue);
            tx.success();
        }
        try (Transaction tx = db.beginTx()) {
            db.createNode(label).setProperty(propertyKey, duplicatedValue);
            tx.success();
        }
        fail("Uniqueness property constraint was violated, exception expected");
    } catch (ConstraintViolationException e) {
        assertEquals(format("Node(0) already exists with label `%s` and property `%s` = '%s'", label.name(), propertyKey, duplicatedValue), e.getMessage());
    } finally {
        db.shutdown();
    }
}