//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldAccessRelationshipLabels()
public virtual void ShouldAccessRelationshipLabels()
{
// given
IDictionary <int, int> counts = new Dictionary <int, int>();
using (RelationshipScanCursor relationships = cursors.allocateRelationshipScanCursor())
{
// when
read.allRelationshipsScan(relationships);
while (relationships.Next())
{
Counts.compute(relationships.Type(), (k, v) => v == null ? 1 : v + 1);
}
}
// then
assertEquals(3, Counts.Count);
int[] values = new int[3];
int i = 0;
foreach (int value in Counts.Values)
{
values[i++] = value;
}
Arrays.sort(values);
assertArrayEquals(new int[] { 1, 6, 6 }, values);
}
private void ScanEverythingBelongingToRelationships(RelationshipMappings relMappings)
{
using (RelationshipScanCursor relationshipScanCursor = _cursors.allocateRelationshipScanCursor(), PropertyCursor propertyCursor = _cursors.allocatePropertyCursor())
{
_dataRead.allRelationshipsScan(relationshipScanCursor);
while (relationshipScanCursor.Next())
{
int typeId = relationshipScanCursor.Type();
relationshipScanCursor.Properties(propertyCursor);
MutableIntSet propertyIds = IntSets.mutable.empty();
while (propertyCursor.Next())
{
int propertyKey = propertyCursor.PropertyKey();
Value currentValue = propertyCursor.PropertyValue();
Pair <int, int> key = Pair.of(typeId, propertyKey);
UpdateValueTypeInMapping(currentValue, key, relMappings.RelationshipTypeIdANDPropertyTypeIdToValueType);
propertyIds.add(propertyKey);
}
propertyCursor.Close();
MutableIntSet oldPropertyKeySet = relMappings.RelationshipTypeIdToPropertyKeys.getOrDefault(typeId, _emptyPropertyIdSet);
// find out which old properties we did not visited and mark them as nullable
if (oldPropertyKeySet == _emptyPropertyIdSet)
{
if (propertyIds.size() == 0)
{
// Even if we find property key on other rels with this type, set all of them nullable
relMappings.NullableRelationshipTypes.Add(typeId);
}
propertyIds.addAll(oldPropertyKeySet);
}
else
{
MutableIntSet currentPropertyIdsHelperSet = new IntHashSet(propertyIds.size());
currentPropertyIdsHelperSet.addAll(propertyIds);
propertyIds.removeAll(oldPropertyKeySet); // only the brand new ones in propIds now
oldPropertyKeySet.removeAll(currentPropertyIdsHelperSet); // only the old ones that are not on the new rel
propertyIds.addAll(oldPropertyKeySet);
propertyIds.forEach(id =>
{
Pair <int, int> key = Pair.of(typeId, id);
relMappings.RelationshipTypeIdANDPropertyTypeIdToValueType[key].setNullable();
});
propertyIds.addAll(currentPropertyIdsHelperSet);
}
relMappings.RelationshipTypeIdToPropertyKeys[typeId] = propertyIds;
}
relationshipScanCursor.Close();
}
}
public virtual bool InitializeData()
{
// It enough to check only start node, since it's absence will indicate that data was not yet loaded.
if (_startNode == AbstractBaseRecord.NO_ID)
{
KernelTransaction transaction = _spi.kernelTransaction();
using (Statement ignore = transaction.AcquireStatement())
{
RelationshipScanCursor relationships = transaction.AmbientRelationshipCursor();
transaction.DataRead().singleRelationship(_id, relationships);
// At this point we don't care if it is there or not just load what we got.
bool wasPresent = relationships.Next();
this._type = relationships.Type();
this._startNode = relationships.SourceNodeReference();
this._endNode = relationships.TargetNodeReference();
// But others might care, e.g. the Bolt server needs to know for serialisation purposes.
return(wasPresent);
}
}
return(true);
}
