private void ChangeRandomNode(GraphDatabaseService db, int nodeCount, RandomValues random)
{
try
{
using (Transaction tx = Db.beginTx())
{
long nodeId = random.Next(nodeCount);
Node node = Db.getNodeById(nodeId);
object[] keys = Iterables.asCollection(node.PropertyKeys).ToArray();
string key = ( string )random.Among(keys);
if (random.NextFloat() < 0.1)
{ // REMOVE
node.RemoveProperty(key);
}
else
{ // CHANGE
node.SetProperty(key, random.NextValue().asObject());
}
tx.Success();
}
}
catch (NotFoundException)
{ // It's OK, it happens if some other thread deleted that property in between us reading it and
// removing or setting it
}
}
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: java.util.List<? extends org.neo4j.kernel.api.index.IndexEntryUpdate<?>> batch()
internal virtual IList <IndexEntryUpdate <object> > Batch()
{
int n = RandomValues.Next(MaxBatchSize) + 1;
//JAVA TO C# CONVERTER WARNING: Java wildcard generics have no direct equivalent in .NET:
//ORIGINAL LINE: java.util.List<org.neo4j.kernel.api.index.IndexEntryUpdate<?>> updates = new java.util.ArrayList<>(n);
IList <IndexEntryUpdate <object> > updates = new List <IndexEntryUpdate <object> >(n);
for (int i = 0; i < n; i++)
{
updates.Add(add(NextEntityId++, outerInstance.Descriptor, outerInstance.ValueGenerator.apply(RandomValues)));
}
return(updates);
}
private ThreadStart Updater <T1, T2>(AtomicReferenceArray <T1> lastBatches, System.Threading.CountdownEvent insertersDone, ReadWriteLock updateLock, ICollection <T2> updates) where T1 : Org.Neo4j.Kernel.Api.Index.IndexEntryUpdate <T1>
{
return(throwing(() =>
{
// Entity ids that have been removed, so that additions can reuse them
IList <long> removed = new List <long>();
RandomValues randomValues = RandomValues.create(new Random(Random.seed() + THREADS));
while (insertersDone.CurrentCount > 0)
{
// Do updates now and then
Thread.Sleep(10);
updateLock.writeLock().@lock();
try
{
using (IndexUpdater updater = _populator.newPopulatingUpdater(_nodePropertyAccessor))
{
for (int i = 0; i < THREADS; i++)
{
IList <IndexEntryUpdate <object> > batch = lastBatches.get(i);
if (batch != null)
{
IndexEntryUpdate <object> update = null;
switch (randomValues.Next(3))
{
case 0: // add
if (!removed.Empty)
{
long?id = removed.remove(randomValues.Next(removed.size()));
update = add(id, Descriptor, ValueGenerator.apply(randomValues));
}
break;
case 1: // remove
IndexEntryUpdate <object> removal = batch.get(randomValues.Next(batch.size()));
update = remove(removal.EntityId, Descriptor, removal.values());
removed.add(removal.EntityId);
break;
case 2: // change
removal = batch.get(randomValues.Next(batch.size()));
change(removal.EntityId, Descriptor, removal.values(), toArray(ValueGenerator.apply(randomValues)));
break;
default:
throw new System.ArgumentException();
}
if (update != null)
{
updater.process(update);
updates.Add(update);
}
}
}
}
}
finally
{
updateLock.writeLock().unlock();
}
}
}));
}
internal override ExistingId RandomExisting(RandomValues random)
{
int index = random.Next(Strings.Length);
return(new ExistingId(Strings[index], index));
}
internal override ExistingId RandomExisting(RandomValues random)
{
long index = random.Next(NODE_COUNT);
return(new ExistingId(index, index));
}
internal virtual string RandomType(RandomValues random)
{
return("TYPE" + random.Next(RELATIONSHIP_TYPES));
}