@Test
public void testRelationshipCreateAndDelete() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship relationship = node1.createRelationshipTo(node2, MyRelTypes.TEST);
Relationship relArray1[] = getRelationshipArray(node1.getRelationships());
Relationship relArray2[] = getRelationshipArray(node2.getRelationships());
assertEquals(1, relArray1.length);
assertEquals(relationship, relArray1[0]);
assertEquals(1, relArray2.length);
assertEquals(relationship, relArray2[0]);
relArray1 = getRelationshipArray(node1.getRelationships(MyRelTypes.TEST));
assertEquals(1, relArray1.length);
assertEquals(relationship, relArray1[0]);
relArray2 = getRelationshipArray(node2.getRelationships(MyRelTypes.TEST));
assertEquals(1, relArray2.length);
assertEquals(relationship, relArray2[0]);
relArray1 = getRelationshipArray(node1.getRelationships(MyRelTypes.TEST, Direction.OUTGOING));
assertEquals(1, relArray1.length);
relArray2 = getRelationshipArray(node2.getRelationships(MyRelTypes.TEST, Direction.INCOMING));
assertEquals(1, relArray2.length);
relArray1 = getRelationshipArray(node1.getRelationships(MyRelTypes.TEST, Direction.INCOMING));
assertEquals(0, relArray1.length);
relArray2 = getRelationshipArray(node2.getRelationships(MyRelTypes.TEST, Direction.OUTGOING));
assertEquals(0, relArray2.length);
relationship.delete();
node2.delete();
node1.delete();
}
@Test
public void testRelationshipChangeProperty() {
Integer int1 = new Integer(1);
Integer int2 = new Integer(2);
String string1 = new String("1");
String string2 = new String("2");
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rel1 = node1.createRelationshipTo(node2, MyRelTypes.TEST);
Relationship rel2 = node2.createRelationshipTo(node1, MyRelTypes.TEST);
rel1.setProperty(key1, int1);
rel2.setProperty(key1, string1);
rel1.setProperty(key2, string2);
rel2.setProperty(key2, int2);
try {
rel1.setProperty(null, null);
fail("Null argument should result in exception.");
} catch (IllegalArgumentException e) {
} catch (NotFoundException e) {
fail("wrong exception");
}
// test type change of exsisting property
// cannot test this for now because of exceptions in PL
rel2.setProperty(key1, int1);
rel1.delete();
rel2.delete();
node2.delete();
node1.delete();
}
@Test
public void testRelationshipChangeProperty2() {
Integer int1 = new Integer(1);
Integer int2 = new Integer(2);
String string1 = new String("1");
String string2 = new String("2");
Boolean bool1 = new Boolean(true);
Boolean bool2 = new Boolean(false);
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rel1 = node1.createRelationshipTo(node2, MyRelTypes.TEST);
rel1.setProperty(key1, int1);
rel1.setProperty(key1, int2);
assertEquals(int2, rel1.getProperty(key1));
rel1.removeProperty(key1);
rel1.setProperty(key1, string1);
rel1.setProperty(key1, string2);
assertEquals(string2, rel1.getProperty(key1));
rel1.removeProperty(key1);
rel1.setProperty(key1, bool1);
rel1.setProperty(key1, bool2);
assertEquals(bool2, rel1.getProperty(key1));
rel1.removeProperty(key1);
rel1.delete();
node2.delete();
node1.delete();
}
@Test
public void testRelationshipCahinIterator() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rels[] = new Relationship[100];
for (int i = 0; i < rels.length; i++) {
if (i < 50) {
rels[i] = node1.createRelationshipTo(node2, MyRelTypes.TEST);
} else {
rels[i] = node2.createRelationshipTo(node1, MyRelTypes.TEST);
}
}
newTransaction();
getNodeManager().clearCache();
Iterable<Relationship> relIterable = node1.getRelationships();
for (Relationship rel : rels) {
rel.delete();
}
newTransaction();
for (Relationship rel : relIterable) {
System.out.println(rel);
}
node1.delete();
node2.delete();
}
@Test
public void testRelMultiRemoveProperty() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rel = node1.createRelationshipTo(node2, MyRelTypes.TEST);
rel.setProperty("key0", "0");
rel.setProperty("key1", "1");
rel.setProperty("key2", "2");
rel.setProperty("key3", "3");
rel.setProperty("key4", "4");
newTransaction();
rel.removeProperty("key3");
rel.removeProperty("key2");
rel.removeProperty("key3");
newTransaction();
getNodeManager().clearCache();
assertEquals("0", rel.getProperty("key0"));
assertEquals("1", rel.getProperty("key1"));
assertEquals("4", rel.getProperty("key4"));
assertTrue(!rel.hasProperty("key2"));
assertTrue(!rel.hasProperty("key3"));
rel.delete();
node1.delete();
node2.delete();
}
@Test
public void testSimple3() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
for (int i = 0; i < 1; i++) {
node1.createRelationshipTo(node2, MyRelTypes.TEST);
node1.createRelationshipTo(node2, MyRelTypes.TEST_TRAVERSAL);
node1.createRelationshipTo(node2, MyRelTypes.TEST2);
}
allGetRelationshipMethods2(node1, Direction.OUTGOING);
allGetRelationshipMethods2(node2, Direction.INCOMING);
newTransaction();
allGetRelationshipMethods2(node1, Direction.OUTGOING);
allGetRelationshipMethods2(node2, Direction.INCOMING);
node1.getRelationships(MyRelTypes.TEST, Direction.OUTGOING).iterator().next().delete();
node1
.getRelationships(MyRelTypes.TEST_TRAVERSAL, Direction.OUTGOING)
.iterator()
.next()
.delete();
node1.getRelationships(MyRelTypes.TEST2, Direction.OUTGOING).iterator().next().delete();
node1.createRelationshipTo(node2, MyRelTypes.TEST);
node1.createRelationshipTo(node2, MyRelTypes.TEST_TRAVERSAL);
node1.createRelationshipTo(node2, MyRelTypes.TEST2);
allGetRelationshipMethods2(node1, Direction.OUTGOING);
allGetRelationshipMethods2(node2, Direction.INCOMING);
newTransaction();
allGetRelationshipMethods2(node1, Direction.OUTGOING);
allGetRelationshipMethods2(node2, Direction.INCOMING);
for (Relationship rel : node1.getRelationships()) {
rel.delete();
}
node1.delete();
node2.delete();
}
@After
public void deleteTestingGraph() {
Node node1 = getGraphDb().getNodeById(node1Id);
Node node2 = getGraphDb().getNodeById(node2Id);
node1.getSingleRelationship(MyRelTypes.TEST, Direction.BOTH).delete();
node1.delete();
node2.delete();
}
@Test
public void testRelCountInSameTx() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rel = node1.createRelationshipTo(node2, MyRelTypes.TEST);
assertEquals(1, getRelationshipArray(node1.getRelationships()).length);
assertEquals(1, getRelationshipArray(node2.getRelationships()).length);
rel.delete();
assertEquals(0, getRelationshipArray(node1.getRelationships()).length);
assertEquals(0, getRelationshipArray(node2.getRelationships()).length);
node1.delete();
node2.delete();
}
@Test
public void testAddPropertyThenDelete() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rel = node1.createRelationshipTo(node2, MyRelTypes.TEST);
rel.setProperty("test", "test");
newTransaction();
rel.setProperty("test2", "test2");
rel.delete();
node1.delete();
node2.delete();
newTransaction();
}
@Test
public void testRelationshipRemoveProperty() {
Integer int1 = new Integer(1);
Integer int2 = new Integer(2);
String string1 = new String("1");
String string2 = new String("2");
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rel1 = node1.createRelationshipTo(node2, MyRelTypes.TEST);
Relationship rel2 = node2.createRelationshipTo(node1, MyRelTypes.TEST);
// verify that we can rely on PL to reomve non existing properties
try {
if (rel1.removeProperty(key1) != null) {
fail("Remove of non existing property should return null");
}
} catch (NotFoundException e) {
}
try {
rel1.removeProperty(null);
fail("Remove null property should throw exception.");
} catch (IllegalArgumentException e) {
}
rel1.setProperty(key1, int1);
rel2.setProperty(key1, string1);
rel1.setProperty(key2, string2);
rel2.setProperty(key2, int2);
try {
rel1.removeProperty(null);
fail("Null argument should result in exception.");
} catch (IllegalArgumentException e) {
}
// test remove property
assertEquals(int1, rel1.removeProperty(key1));
assertEquals(string1, rel2.removeProperty(key1));
// test remove of non exsisting property
try {
if (rel2.removeProperty(key1) != null) {
fail("Remove of non existing property should return null");
}
} catch (NotFoundException e) {
// have to set rollback only here
getTransaction().failure();
}
rel1.delete();
rel2.delete();
node1.delete();
node2.delete();
}
@Test
public void testDeletedRelationship() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship relationship = node1.createRelationshipTo(node2, MyRelTypes.TEST);
relationship.delete();
try {
relationship.setProperty("key1", new Integer(1));
fail("Adding property to deleted rel should throw exception.");
} catch (Exception e) { // good
}
node1.delete();
node2.delete();
}
@Test
public void testRollbackDeleteRelationship() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rel1 = node1.createRelationshipTo(node2, MyRelTypes.TEST);
newTransaction();
node1.delete();
rel1.delete();
getTransaction().failure();
getTransaction().finish();
setTransaction(getGraphDb().beginTx());
node1.delete();
node2.delete();
rel1.delete();
}
@Test
public void deletingNodeWithLabelsShouldHaveRemovalReflectedInLabelScans() throws Exception {
// GIVEN
Transaction tx = db.beginTx();
Label label = label("labello");
Node node = db.createNode(label);
tx.success();
tx.finish();
// AND GIVEN I DELETE IT
tx = db.beginTx();
node.delete();
tx.success();
tx.finish();
// WHEN
tx = db.beginTx();
Statement statement = statementContextProvider.instance();
int labelId = statement.readOperations().labelGetForName(label.name());
PrimitiveLongIterator nodes = statement.readOperations().nodesGetForLabel(labelId);
Set<Long> nodeSet = asSet(nodes);
tx.success();
tx.finish();
// THEN
assertThat(nodeSet, equalTo(Collections.<Long>emptySet()));
}
public void removeAll() throws ApplicationException {
log.info("Removing all nodes and references.");
Transaction tx = graphDb.beginTx();
try {
GlobalGraphOperations ops = GlobalGraphOperations.at(graphDb);
for (Relationship relationship : ops.getAllRelationships()) {
relationship.delete();
}
for (Node node : ops.getAllNodes()) {
node.delete();
}
tx.success();
log.info("Deleted all relationships and nodes");
} catch (Exception e) {
log.error(e.toString());
tx.failure();
throw new ApplicationException(e);
} finally {
tx.finish();
}
}
@Override
/**
* Delete a record from the database.
*
* @param table The name of the table
* @param key The record key of the record to delete.
* @return Zero on success, a non-zero error code on error. See this class's description for a
* discussion of error codes.
*/
public int delete(String table, String key) {
Transaction tx = gds.beginTx();
try {
IndexHits<Node> hits = index().get("_id", key);
Node node = hits.getSingle();
index().remove(node);
node.delete();
tx.success();
return 0;
} catch (Exception e) {
e.printStackTrace();
return 1;
} finally {
tx.finish();
}
}
@Test
public void shouldRecoverTransactionWhereNodeIsDeletedInTheFuture() throws Exception {
// GIVEN
Node node;
try (Transaction tx = db.beginTx()) {
node = db.createNode(label);
node.setProperty("key", "value");
tx.success();
}
rotateLog();
try (Transaction tx = db.beginTx()) {
node.setProperty("other-key", 1);
tx.success();
}
try (Transaction tx = db.beginTx()) {
node.delete();
tx.success();
}
flushAll();
// WHEN
FileSystemAbstraction uncleanFs = fsRule.snapshot(shutdownDb(db));
db =
(GraphDatabaseAPI)
new TestGraphDatabaseFactory().setFileSystem(uncleanFs).newImpermanentDatabase();
// THEN
// -- really the problem was that recovery threw exception, so mostly assert that.
try (Transaction tx = db.beginTx()) {
node = db.getNodeById(node.getId());
fail("Should not exist");
} catch (NotFoundException e) {
assertEquals("Node " + node.getId() + " not found", e.getMessage());
}
}
public void delete(ConstructionZoneNode zone) {
Node n = zone.getNode();
for (Relationship rel : n.getRelationships()) {
rel.delete();
}
n.delete();
}
@Test
public void removeNodesWithARelation() {
int originalNodeCount = countNodesOf(graphDb);
int removedNodeCount = 0;
Transaction tx = graphDb.beginTx();
try {
Set<Node> toRemove = new HashSet<Node>();
for (Node node : graphDb.getAllNodes()) {
for (Relationship relationship : node.getRelationships(RelationType.ON)) {
toRemove.add(relationship.getStartNode());
toRemove.add(relationship.getEndNode());
relationship.delete();
}
}
for (Node node : toRemove) {
node.delete();
removedNodeCount++;
}
tx.success();
} finally {
tx.finish();
}
int finalNodeCount = countNodesOf(graphDb);
assertEquals(
Integer.valueOf(originalNodeCount), Integer.valueOf(finalNodeCount + removedNodeCount));
}
private void createSomeTransactions(GraphDatabaseService db) {
Transaction tx = db.beginTx();
Node node1 = db.createNode();
Node node2 = db.createNode();
node1.createRelationshipTo(node2, DynamicRelationshipType.withName("relType1"));
tx.success();
tx.finish();
tx = db.beginTx();
node1.delete();
tx.success();
try {
// Will throw exception, causing the tx to be rolledback.
tx.finish();
} catch (Exception nothingToSeeHereMoveAlong) {
// InvalidRecordException coming, node1 has rels
}
/*
* The damage has already been done. The following just makes sure
* the corrupting tx is flushed to disk, since we will exit
* uncleanly.
*/
tx = db.beginTx();
node1.setProperty("foo", "bar");
tx.success();
tx.finish();
}
/**
* Removes all nodes with non-valid resource classes from the graph.
*
* @param docGraph
* @param validResourceClasses
*/
private void preProcessGraph(DocGraph docGraph, Set<String> validResourceClasses) {
log.info(String.format("Preprocessing DocGraph[%d]", docGraph.getId()));
Node n;
int cnt = 0;
try (Transaction tx = graphDB.beginTx()) {
for (Long nodeId : docGraph.getNodes()) {
n = graphDB.getNodeById(nodeId);
// node's class is resource class and it's not in the valid set
if (n.hasProperty(Constants.NODE_SUPER_CLASS_KEY)
&& n.getProperty(Constants.NODE_SUPER_CLASS_KEY)
.equals(Constants.NODE_SUPER_CLASS_RESOURCE_VALUE)
&& !validResourceClasses.contains(getNodeClass(n))) {
try (Transaction innerTx = graphDB.beginTx()) {
log.info("Deleting " + n);
for (Relationship e : n.getRelationships()) {
e.delete();
}
n.delete();
innerTx.success();
cnt++;
}
}
}
tx.success();
}
log.info(
String.format("Preprocessing removed %d nodes from DocGraph[%d]", cnt, docGraph.getId()));
}
/*
* It will remove a property from an embedded node if it exists.
* After deleting the property, if the node does not have any more properties and relationships (except for an incoming one),
* it will delete the embedded node as well.
*/
private void removePropertyForEmbedded(Node embeddedNode, String[] embeddedColumnSplit, int i) {
if (i == embeddedColumnSplit.length - 1) {
// Property
String property = embeddedColumnSplit[embeddedColumnSplit.length - 1];
if (embeddedNode.hasProperty(property)) {
embeddedNode.removeProperty(property);
}
} else {
Iterator<Relationship> iterator =
embeddedNode
.getRelationships(Direction.OUTGOING, withName(embeddedColumnSplit[i]))
.iterator();
if (iterator.hasNext()) {
removePropertyForEmbedded(iterator.next().getEndNode(), embeddedColumnSplit, i + 1);
}
}
if (!embeddedNode.getPropertyKeys().iterator().hasNext()) {
// Node without properties
Iterator<Relationship> iterator = embeddedNode.getRelationships().iterator();
if (iterator.hasNext()) {
Relationship relationship = iterator.next();
if (!iterator.hasNext()) {
// Node with only one relationship and no properties,
// we can remove it:
// It means we have removed all the properties from the embedded node
// and it is NOT an intermediate node like
// (entity) --> (embedded1) --> (embedded2)
relationship.delete();
embeddedNode.delete();
}
}
}
}
public void testIt() throws Exception {
String key = "mykey";
String value = "myvalue";
Collection<Node> nodes = new ArrayList<Node>();
for (int i = 0; i < 20000; i++) {
Node node = graphDb().createNode();
indexService.index(node, key, value);
nodes.add(node);
if (i == 2000) {
Iterable<Node> itr = indexService.getNodes(key, value);
assertCollection(asCollection(itr), nodes.toArray(new Node[0]));
}
if (i % 10000 == 0) {
restartTx();
}
}
restartTx();
Node[] nodeArray = nodes.toArray(new Node[0]);
long total = 0;
long totalTotal = 0;
int counter = 0;
for (int i = 0; i < 10; i++) {
// So that it'll get the nodes in the synchronous way
((LuceneIndexService) indexService).setLazySearchResultThreshold(nodes.size() + 10);
long time = System.currentTimeMillis();
Iterable<Node> itr = indexService.getNodes(key, value);
long syncTime = System.currentTimeMillis() - time;
assertCollection(asCollection(itr), nodeArray);
long syncTotalTime = System.currentTimeMillis() - time;
// So that it'll get the nodes in the lazy way
((LuceneIndexService) indexService).setLazySearchResultThreshold(nodes.size() - 10);
time = System.currentTimeMillis();
itr = indexService.getNodes(key, value);
long lazyTime = System.currentTimeMillis() - time;
assertCollection(asCollection(itr), nodeArray);
long lazyTotalTime = System.currentTimeMillis() - time;
// System.out.println( "lazy:" + lazyTime + " (" + lazyTotalTime +
// "), sync:" + syncTime + " (" + syncTotalTime + ")" );
if (i > 0) {
total += syncTime;
totalTotal += syncTotalTime;
counter++;
}
// At the very least
assertTrue(lazyTime < syncTime / 3);
}
// System.out.println( "avg:" + ( total / counter ) + ", " +
// ( totalTotal / counter ) );
for (Node node : nodes) {
node.delete();
}
}
@Test
public void testCreateRelationshipWithCommitts() // throws NotFoundException
{
Node n1 = getGraphDb().createNode();
newTransaction();
clearCache();
n1 = getGraphDb().getNodeById((int) n1.getId());
Node n2 = getGraphDb().createNode();
n1.createRelationshipTo(n2, MyRelTypes.TEST);
newTransaction();
Relationship[] relArray = getRelationshipArray(n1.getRelationships());
assertEquals(1, relArray.length);
relArray = getRelationshipArray(n1.getRelationships());
relArray[0].delete();
n1.delete();
n2.delete();
}
@Override
protected void doSomething() throws Throwable {
Pair<Integer, Node> pair = getNode(random, true);
int index = pair.first();
Node node = pair.other();
node.delete();
setNode(index, db.createNode());
}
@Test
public void testDeleteWithRelationship() {
// do some evil stuff
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship relationship = node1.createRelationshipTo(node2, MyRelTypes.TEST);
node1.delete();
node2.delete();
try {
getTransaction().success();
getTransaction().finish();
fail("deleting node with relaitonship should not commit.");
} catch (Exception e) {
// good
}
setTransaction(getGraphDb().beginTx());
}
public void removeVertex(final Vertex vertex) {
this.autoStartTransaction();
final Node node = ((Neo4jVertex) vertex).getRawVertex();
for (final Relationship relationship :
node.getRelationships(org.neo4j.graphdb.Direction.BOTH)) {
relationship.delete();
}
node.delete();
}
@Test
public void testRelationshipIsType() {
Node node1 = getGraphDb().createNode();
Node node2 = getGraphDb().createNode();
Relationship rel = node1.createRelationshipTo(node2, MyRelTypes.TEST);
assertTrue(rel.isType(MyRelTypes.TEST));
assertTrue(
rel.isType(
new RelationshipType() {
public String name() {
return MyRelTypes.TEST.name();
}
}));
assertFalse(rel.isType(MyRelTypes.TEST_TRAVERSAL));
rel.delete();
node1.delete();
node2.delete();
}
@Test
public void testTxCacheLoadIsolation() throws Exception {
Node node = getGraphDb().createNode();
node.setProperty("someproptest", "testing");
Node node1 = getGraphDb().createNode();
node1.setProperty("someotherproptest", 2);
commit();
EmbeddedGraphDatabase graphDb = (EmbeddedGraphDatabase) getGraphDb();
TransactionManager txManager = graphDb.getConfig().getTxModule().getTxManager();
NodeManager nodeManager = graphDb.getConfig().getGraphDbModule().getNodeManager();
txManager.begin();
node.setProperty("someotherproptest", "testing2");
Relationship rel = node.createRelationshipTo(node1, MyRelTypes.TEST);
javax.transaction.Transaction txA = txManager.suspend();
txManager.begin();
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(!node.hasProperty("someotherproptest"));
assertTrue(!node.hasRelationship());
nodeManager.clearCache();
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(!node.hasProperty("someotherproptest"));
javax.transaction.Transaction txB = txManager.suspend();
txManager.resume(txA);
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(node.hasProperty("someotherproptest"));
assertTrue(node.hasRelationship());
nodeManager.clearCache();
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(node.hasProperty("someotherproptest"));
assertTrue(node.hasRelationship());
txManager.suspend();
txManager.resume(txB);
assertEquals("testing", node.getProperty("someproptest"));
assertTrue(!node.hasProperty("someotherproptest"));
assertTrue(!node.hasRelationship());
txManager.rollback();
txManager.resume(txA);
node.delete();
node1.delete();
rel.delete();
txManager.commit();
newTransaction();
}
@Test
public void testIndexedSet() throws Exception {
Node rootNode = graphDb().createNode();
Collection<AnItem> collection =
new SortedNodeCollection<AnItem>(rootNode, new AnItemComparator(), AnItem.class);
List<String> strings =
new ArrayList<String>(
Arrays.asList(
"Mattias",
"Persson",
"Went",
"And",
"Implemented",
"An",
"Indexed",
"GraphDb",
"Set",
"And",
"How",
"About",
"That"));
for (String string : strings) {
assertTrue(collection.add(new AnItem(string)));
}
// Compare the indexed node collection against a natural sorting order
Collections.sort(strings);
assertCollectionSame(strings, collection);
String toRemove = "Persson";
AnItem toRemoveItem = findItem(collection, toRemove);
assertTrue(collection.remove(toRemoveItem));
assertTrue(strings.remove(toRemove));
assertCollectionSame(strings, collection);
collection.clear();
((SortedNodeCollection<AnItem>) collection).delete();
rootNode.delete();
for (Node node : AnItem.createdNodes) {
node.delete();
}
}
@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);
}