//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldHandleLargeAmountsOfDuplicateNodeIds()
public virtual void ShouldHandleLargeAmountsOfDuplicateNodeIds()
{
// GIVEN
IdMapper mapper = mapper(new LongEncoder(), Radix.Long, NO_MONITOR);
long nodeId = 0;
int high = 10;
// a list of input ids
IList <object> ids = new List <object>();
for (int run = 0; run < 2; run++)
{
for (long i = 0; i < high / 2; i++)
{
ids.Add(high - (i + 1));
ids.Add(i);
}
}
// fed to the IdMapper
foreach (object inputId in ids)
{
mapper.Put(inputId, nodeId++, GLOBAL);
}
// WHEN
Collector collector = mock(typeof(Collector));
mapper.Prepare(Values(ids.ToArray()), collector, NONE);
// THEN
verify(collector, times(high)).collectDuplicateNode(any(typeof(object)), anyLong(), anyString());
assertEquals(high, count(mapper.LeftOverDuplicateNodesIds()));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldBeAbleToHaveDuplicateInputIdButInDifferentGroups()
public virtual void ShouldBeAbleToHaveDuplicateInputIdButInDifferentGroups()
{
// GIVEN
Monitor monitor = mock(typeof(Monitor));
Group firstGroup = _groups.getOrCreate("first");
Group secondGroup = _groups.getOrCreate("second");
IdMapper mapper = mapper(new StringEncoder(), Radix.String, monitor);
System.Func <long, object> ids = Values("10", "9", "10");
int id = 0;
// group 0
mapper.Put(ids(id), id++, firstGroup);
mapper.Put(ids(id), id++, firstGroup);
// group 1
mapper.Put(ids(id), id++, secondGroup);
Collector collector = mock(typeof(Collector));
mapper.Prepare(ids, collector, NONE);
// WHEN/THEN
verifyNoMoreInteractions(collector);
verify(monitor).numberOfCollisions(0);
assertEquals(0L, mapper.Get("10", firstGroup));
assertEquals(1L, mapper.Get("9", firstGroup));
assertEquals(2L, mapper.Get("10", secondGroup));
assertFalse(mapper.LeftOverDuplicateNodesIds().hasNext());
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldDetectCorrectDuplicateInputIdsWhereManyAccidentalInManyGroups()
public virtual void ShouldDetectCorrectDuplicateInputIdsWhereManyAccidentalInManyGroups()
{
// GIVEN
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final ControlledEncoder encoder = new ControlledEncoder(new LongEncoder());
ControlledEncoder encoder = new ControlledEncoder(new LongEncoder());
const int idsPerGroup = 20;
int groupCount = 5;
for (int i = 0; i < groupCount; i++)
{
_groups.getOrCreate("Group " + i);
}
IdMapper mapper = mapper(encoder, Radix.Long, NO_MONITOR, ParallelSort.DEFAULT, numberOfCollisions => new LongCollisionValues(NumberArrayFactory.HEAP, numberOfCollisions));
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final java.util.concurrent.atomic.AtomicReference<org.neo4j.unsafe.impl.batchimport.input.Group> group = new java.util.concurrent.atomic.AtomicReference<>();
AtomicReference <Group> group = new AtomicReference <Group>();
System.Func <long, object> ids = nodeId =>
{
int groupId = toIntExact(nodeId / idsPerGroup);
if (groupId == groupCount)
{
return(null);
}
group.set(_groups.get(groupId));
// Let the first 10% in each group be accidental collisions with each other
// i.e. all first 10% in each group collides with all other first 10% in each group
if (nodeId % idsPerGroup < 2)
{ // Let these colliding values encode into the same eId as well,
// so that they are definitely marked as collisions
encoder.UseThisIdToEncodeNoMatterWhatComesIn(Convert.ToInt64(1234567));
return(Convert.ToInt64(nodeId % idsPerGroup));
}
// The other 90% will be accidental collisions for something else
encoder.UseThisIdToEncodeNoMatterWhatComesIn(Convert.ToInt64(123456 - group.get().id()));
return(Convert.ToInt64(nodeId));
};
// WHEN
int count = idsPerGroup * groupCount;
for (long nodeId = 0; nodeId < count; nodeId++)
{
mapper.Put(ids(nodeId), nodeId, group.get());
}
Collector collector = mock(typeof(Collector));
mapper.Prepare(ids, collector, NONE);
// THEN
verifyNoMoreInteractions(collector);
for (long nodeId = 0; nodeId < count; nodeId++)
{
assertEquals(nodeId, mapper.Get(ids(nodeId), group.get()));
}
verifyNoMoreInteractions(collector);
assertFalse(mapper.LeftOverDuplicateNodesIds().hasNext());
}
