@Test
public void clearGraphWithoutRuntimeShouldDeleteBasedOnRelInclusionPolicy() {
try (Transaction tx = database.beginTx()) {
String cypher =
"CREATE "
+ "(purple:Purple {name:'Purple'})<-[:REL]-(red1:Red {name:'Red'})-[:REL]->(black1:Black {name:'Black'})-[:REL]->(green:Green {name:'Green'}),"
+ "(red2:Red {name:'Red'})-[:REL]->(black2:Black {name:'Black'}), (blue1:Blue)-[:REL2]->(blue2:Blue)";
populateDatabase(cypher);
tx.success();
}
InclusionPolicies inclusionPolicies =
InclusionPolicies.all().with(new BlueNodeInclusionPolicy()).with(new Rel2InclusionPolicy());
try (Transaction tx = database.beginTx()) {
clearGraph(database, inclusionPolicies);
tx.success();
}
try (Transaction tx = database.beginTx()) {
assertEquals(6, count(at(database).getAllNodes()));
assertEquals(4, count(at(database).getAllRelationships()));
tx.success();
}
}
@Test
public void shouldRetrieveMultipleNodesWithSameValueFromIndex() throws Exception {
// this test was included here for now as a precondition for the following test
// given
GraphDatabaseService graph = dbRule.getGraphDatabaseService();
createIndex(graph, LABEL1, "name");
Node node1, node2;
try (Transaction tx = graph.beginTx()) {
node1 = graph.createNode(LABEL1);
node1.setProperty("name", "Stefan");
node2 = graph.createNode(LABEL1);
node2.setProperty("name", "Stefan");
tx.success();
}
try (Transaction tx = graph.beginTx()) {
ResourceIterator<Node> result = graph.findNodes(LABEL1, "name", "Stefan");
assertEquals(asSet(node1, node2), asSet(result));
tx.success();
}
}
@Test
public void shouldCorrectlyUpdateIndexesWhenChangingLabelsAndPropertyAtTheSameTime()
throws Exception {
// Given
GraphDatabaseService beansAPI = dbRule.getGraphDatabaseService();
Node myNode = createNode(beansAPI, map("name", "Hawking"), LABEL1, LABEL2);
createIndex(beansAPI, LABEL1, "name");
createIndex(beansAPI, LABEL2, "name");
createIndex(beansAPI, LABEL3, "name");
// When
try (Transaction tx = beansAPI.beginTx()) {
myNode.removeLabel(LABEL1);
myNode.addLabel(LABEL3);
myNode.setProperty("name", "Einstein");
tx.success();
}
// Then
assertThat(myNode, inTx(beansAPI, hasProperty("name").withValue("Einstein")));
assertThat(labels(myNode), containsOnly(LABEL2, LABEL3));
assertThat(findNodesByLabelAndProperty(LABEL1, "name", "Hawking", beansAPI), isEmpty());
assertThat(findNodesByLabelAndProperty(LABEL1, "name", "Einstein", beansAPI), isEmpty());
assertThat(findNodesByLabelAndProperty(LABEL2, "name", "Hawking", beansAPI), isEmpty());
assertThat(
findNodesByLabelAndProperty(LABEL2, "name", "Einstein", beansAPI), containsOnly(myNode));
assertThat(findNodesByLabelAndProperty(LABEL3, "name", "Hawking", beansAPI), isEmpty());
assertThat(
findNodesByLabelAndProperty(LABEL3, "name", "Einstein", beansAPI), containsOnly(myNode));
}
public void rn() throws IOException {
List<RoadLink> links = loadToDatabase("/Users/duduba/gj.mif", "/Users/duduba/gj.mid", false);
GraphDatabaseService graphDb = neo.getDb();
Index<Node> nodeIndex = neo.getNodeIndex();
for (RoadLink link : links) {
Transaction tx = graphDb.beginTx();
try {
Node fromNode = nodeIndex.get("id", link.fromNode).getSingle();
if (fromNode == null) {
fromNode = graphDb.createNode();
fromNode.setProperty("id", link.fromNode);
nodeIndex.add(fromNode, "id", link.fromNode);
}
Node toNode = nodeIndex.get("id", link.toNode).getSingle();
if (toNode == null) {
toNode = graphDb.createNode();
toNode.setProperty("id", link.toNode);
nodeIndex.add(toNode, "id", link.toNode);
}
Relationship r = fromNode.createRelationshipTo(toNode, Neo.RelTypes.TO);
r.setProperty("no", link.no);
r.setProperty("name", link.name);
tx.success();
} finally {
tx.finish();
}
}
logger.debug("haha, it's ok!");
}
@Test
public void shouldRollbackViaStatus() throws Exception {
new TransactionTemplate(neo4jTransactionManager)
.execute(
new TransactionCallbackWithoutResult() {
@Override
protected void doInTransactionWithoutResult(final TransactionStatus status) {
neo4jTemplate.exec(
new GraphCallback.WithoutResult() {
@Override
public void doWithGraphWithoutResult(GraphDatabase graph) throws Exception {
graph
.getReferenceNode()
.setProperty("test", "shouldRollbackTransactionOnException");
status.setRollbackOnly();
}
});
}
});
Transaction tx = graphDatabase.beginTx();
try {
Assert.assertThat(
(String) graphDatabase.getReferenceNode().getProperty("test", "not set"),
not("shouldRollbackTransactionOnException"));
} finally {
tx.success();
tx.finish();
}
}
@Test
public void testAddToIndex() {
final MatrixDataGraph matrixDataGraph = new MatrixDataGraph(getGraphDatabase());
matrixDataGraph.createNodespace();
final RestNode neoNode = restAPI.getNodeById(matrixDataGraph.getNeoNode().getId());
final Transaction tx = restAPI.beginTx();
restAPI.index().forNodes("heroes").add(neoNode, "indexname", "Neo2");
Node n1 = restAPI.createNode(map("name", "Apoc"));
final Index<Node> index = restAPI.index().forNodes("heroes");
index.add(n1, "indexname", "Apoc");
final Node indexResult =
getGraphDatabase().index().forNodes("heroes").get("indexname", "Neo2").getSingle();
assertNull(indexResult);
final IndexHits<Node> heroes = index.query("indexname:Apoc");
tx.success();
tx.finish();
assertEquals("1 hero", 1, heroes.size());
IndexManager realIndex = getGraphDatabase().index();
Index<Node> goodGuys = realIndex.forNodes("heroes");
IndexHits<Node> hits = goodGuys.get("indexname", "Apoc");
Node apoc = hits.getSingle();
assertEquals("Apoc indexed", apoc, heroes.iterator().next());
}
@Test
public void testCreateRelationship() {
Node n1 = restAPI.createNode(map("name", "newnode1"));
final Transaction tx = restAPI.beginTx();
Node n2 = restAPI.createNode(map("name", "newnode2"));
RestRelationship rel = restAPI.createRelationship(n1, n2, Type.TEST, map("name", "rel"));
Iterable<Relationship> allRelationships = n1.getRelationships();
tx.success();
tx.finish();
Relationship foundRelationship =
TestHelper.firstRelationshipBetween(
n1.getRelationships(Type.TEST, Direction.OUTGOING), n1, n2);
Assert.assertNotNull("found relationship", foundRelationship);
assertEquals("same relationship", rel, foundRelationship);
assertEquals("rel", rel.getProperty("name"));
assertThat(
n1.getRelationships(Type.TEST, Direction.OUTGOING),
new IsRelationshipToNodeMatcher(n1, n2));
assertThat(n1.getRelationships(Direction.OUTGOING), new IsRelationshipToNodeMatcher(n1, n2));
assertThat(n1.getRelationships(Direction.BOTH), new IsRelationshipToNodeMatcher(n1, n2));
assertThat(n1.getRelationships(Type.TEST), new IsRelationshipToNodeMatcher(n1, n2));
assertThat(allRelationships, new IsRelationshipToNodeMatcher(n1, n2));
}
private Node createLabeledNode(Label... labels) {
try (Transaction tx = dbRule.getGraphDatabaseService().beginTx()) {
Node node = dbRule.getGraphDatabaseService().createNode(labels);
tx.success();
return node;
}
}
private static List<Double> getWeightVectorForClass(
Map<String, List<LinkedHashMap<String, Object>>> documents,
String key,
List<Integer> featureIndexList,
GraphDatabaseService db) {
List<Double> weightVector;
Transaction tx = db.beginTx();
// Get class id
Long classId =
db.findNodesByLabelAndProperty(DynamicLabel.label("Class"), "name", key)
.iterator()
.next()
.getId();
// Get weight vector for class
List<Long> longs =
documents
.get(key)
.stream()
.map(a -> ((Integer) a.get("feature")).longValue())
.collect(Collectors.toList());
weightVector =
featureIndexList
.stream()
.map(i -> longs.contains(i.longValue()) ? tfidf(db, i.longValue(), classId) : 0.0)
.collect(Collectors.toList());
tx.success();
tx.close();
return weightVector;
}
@Test
public void listing3_4_create_realationships_between_users() {
usersAndMovies.createSimpleRelationshipsBetweenUsers();
try (Transaction tx = graphDb.beginTx()) {
assertTrue(usersAndMovies.user1.hasRelationship(MyRelationshipTypes.IS_FRIEND_OF));
tx.success();
}
}
@Test
public void listing3_2_create_single_user() {
usersAndMovies.createSingleUser();
try (Transaction tx = graphDb.beginTx()) {
assertNotNull(graphDb.getNodeById(0));
tx.success();
}
}
@Test
public void
shouldUseDynamicPropertiesToIndexANodeWhenAddedAlongsideExistingPropertiesInASeparateTransaction()
throws Exception {
// Given
GraphDatabaseService beansAPI = dbRule.getGraphDatabaseAPI();
// When
long id;
{
try (Transaction tx = beansAPI.beginTx()) {
Node myNode = beansAPI.createNode();
id = myNode.getId();
myNode.setProperty("key0", true);
myNode.setProperty("key1", true);
tx.success();
}
}
{
IndexDefinition indexDefinition;
try (Transaction tx = beansAPI.beginTx()) {
indexDefinition = beansAPI.schema().indexFor(LABEL1).on("key2").create();
tx.success();
}
waitForIndex(beansAPI, indexDefinition);
}
Node myNode;
{
try (Transaction tx = beansAPI.beginTx()) {
myNode = beansAPI.getNodeById(id);
myNode.addLabel(LABEL1);
myNode.setProperty("key2", LONG_STRING);
myNode.setProperty("key3", LONG_STRING);
tx.success();
}
}
// Then
assertThat(myNode, inTx(beansAPI, hasProperty("key2").withValue(LONG_STRING)));
assertThat(myNode, inTx(beansAPI, hasProperty("key3").withValue(LONG_STRING)));
assertThat(
findNodesByLabelAndProperty(LABEL1, "key2", LONG_STRING, beansAPI), containsOnly(myNode));
}
private void addLabels(Node node, Label... labels) {
try (Transaction tx = dbRule.getGraphDatabaseService().beginTx()) {
for (Label label : labels) {
node.addLabel(label);
}
tx.success();
}
}
@Test
public void deletedNewPropsShouldNotInfluenceEquality() { // bug test
try (Transaction tx = database.beginTx()) {
database.createNode().setProperty("accident", "dummy");
database.createNode();
tx.success();
}
try (Transaction tx = database.beginTx()) {
database.getNodeById(0).delete();
tx.success();
}
String cypher = "CREATE (n)";
assertSameGraph(database, cypher);
}
@Test
public void deletedNewLabelShouldNotInfluenceEquality() { // bug test
try (Transaction tx = database.beginTx()) {
database.createNode(DynamicLabel.label("Accident"));
database.createNode(DynamicLabel.label("RealLabel"));
tx.success();
}
try (Transaction tx = database.beginTx()) {
database.getNodeById(0).delete();
tx.success();
}
String cypher = "CREATE (n:RealLabel)";
assertSameGraph(database, cypher);
}
@Test
public void listing3_5_add_properties_to_user_nodes() {
usersAndMovies.addPropertiesToUserNodes();
try (Transaction tx = graphDb.beginTx()) {
assertTrue(usersAndMovies.user1.hasProperty("name"));
assertEquals("John Johnson", usersAndMovies.user1.getProperty("name"));
tx.success();
}
}
@Test
public void listing3_6_add_more_properties_to_user_nodes() {
usersAndMovies.addMorePropertiesToUsers();
try (Transaction tx = graphDb.beginTx()) {
assertTrue(usersAndMovies.user1.hasProperty("year_of_birth"));
assertEquals(1982, usersAndMovies.user1.getProperty("year_of_birth"));
tx.success();
}
}
@Test
public void deletedRelationshipWithNewTypeShouldNotInfluenceEquality() { // bug test
try (Transaction tx = database.beginTx()) {
Node node1 = database.createNode();
Node node2 = database.createNode();
node1.createRelationshipTo(node2, DynamicRelationshipType.withName("ACCIDENT"));
tx.success();
}
try (Transaction tx = database.beginTx()) {
GlobalGraphOperations.at(database).getAllRelationships().iterator().next().delete();
tx.success();
}
String cypher = "CREATE (n), (m)";
assertSameGraph(database, cypher);
}
@Test
public void listing3_7_create_movies() {
try (Transaction tx = graphDb.beginTx()) {
assertNotNull(graphDb.getNodeById(3));
assertNotNull(graphDb.getNodeById(4));
assertNotNull(graphDb.getNodeById(5));
tx.success();
}
}
@Before
public void setUp() throws Exception {
Transaction tx = neo4jTemplate.getGraphDatabase().beginTx();
try {
Neo4jHelper.cleanDb(neo4jTemplate);
} finally {
tx.success();
tx.finish();
}
tx = neo4jTemplate.getGraphDatabase().beginTx();
try {
referenceNode = graphDatabase.getReferenceNode();
createData();
} finally {
tx.success();
tx.finish();
}
}
@Test
public void listing3_8_add_type_properties_to_all_nodes() {
usersAndMovies.addTypePropertiesToNodes();
try (Transaction tx = graphDb.beginTx()) {
assertEquals("User", usersAndMovies.user1.getProperty("type"));
assertEquals("Movie", usersAndMovies.movie1.getProperty("type"));
tx.success();
}
}
@Test
public void listing3_3_create_multiple_users() {
usersAndMovies.createMultipleUsersInSingleTransaction();
try (Transaction tx = graphDb.beginTx()) {
assertNotNull(graphDb.getNodeById(1));
assertNotNull(graphDb.getNodeById(2));
tx.success();
}
}
@Test(expected = org.neo4j.graphdb.NotFoundException.class)
public void testDeleteNode() {
final Transaction tx = restAPI.beginTx();
Node n1 = restAPI.createNode(map("name", "node1"));
n1.delete();
Node n2 = restAPI.createNode(map("name", "node2"));
tx.success();
tx.finish();
loadRealNode(n1);
}
private Node createNode(
GraphDatabaseService beansAPI, Map<String, Object> properties, Label... labels) {
try (Transaction tx = beansAPI.beginTx()) {
Node node = beansAPI.createNode(labels);
for (Map.Entry<String, Object> property : properties.entrySet())
node.setProperty(property.getKey(), property.getValue());
tx.success();
return node;
}
}
@Test
public void listing3_10_node_labels() {
usersAndMovies.addLabelToMovies();
try (Transaction tx = graphDb.beginTx()) {
ResourceIterable<Node> movies =
GlobalGraphOperations.at(graphDb).getAllNodesWithLabel(DynamicLabel.label("MOVIES"));
assertEquals(3, IteratorUtil.count(movies));
tx.success();
}
}
@Test(expected = UnsupportedOperationException.class)
public void testRemoveEntryFromIndexWithGivenNodeAndKeyAndValue() {
final Transaction tx = restAPI.beginTx();
Node n1 = restAPI.createNode(map("name", "node1"));
final Index<Node> index = restAPI.index().forNodes("testIndex");
index.add(n1, "indexname", "Node1");
index.remove(n1, "indexname", "Node1");
tx.success();
tx.finish();
assertNull(index.get("indexname", "Node1").getSingle());
}
@Test
public void testRemoveEntryFromIndexWithGivenNode() {
Node n1 = restAPI.createNode(map("name", "node1"));
final Index<Node> index = restAPI.index().forNodes("testIndex");
index.add(n1, "indexname", "Node1");
final Transaction tx = restAPI.beginTx();
index.remove(n1);
tx.success();
tx.finish();
assertNull(index.get("indexname", "Node1").getSingle());
}
@Test
public void testDeleteIndex() {
final MatrixDataGraph matrixDataGraph = new MatrixDataGraph(getGraphDatabase());
matrixDataGraph.createNodespace();
final Transaction tx = restAPI.beginTx();
final Index<Node> heroes = restAPI.index().forNodes("heroes");
heroes.delete();
tx.success();
tx.finish();
Assert.assertFalse(getGraphDatabase().index().existsForNodes("heroes"));
}
@Test(expected = RestResultException.class)
public void testFailingDoubleDelete() throws Exception {
final Transaction tx = restAPI.beginTx();
Node n1 = restAPI.createNode(map());
n1.delete();
n1.delete();
tx.success();
tx.finish();
}
@Test
public void equalArraysWithDifferentTypeShouldBeEqual() {
try (Transaction tx = database.beginTx()) {
database.createNode().setProperty("number", new int[] {123, 124});
tx.success();
}
String cypher = "CREATE (n {number:[123,124]})";
assertSameGraph(database, cypher);
}