private void InitializeLinking(BatchingNeoStores neoStores, NodeRelationshipCache nodeRelationshipCache, DataStatistics distribution)
{
PrintStageHeader("(3/4) Relationship linking", ESTIMATED_REQUIRED_MEMORY_USAGE, bytes(BaselineMemoryRequirement(neoStores) + defensivelyPadMemoryEstimate(nodeRelationshipCache.MemoryEstimation(distribution.NodeCount))));
// The reason the highId of the relationship store is used, as opposed to actual number of imported relationships
// is that the stages underneath operate on id ranges, not knowing which records are actually in use.
long relationshipRecordIdCount = neoStores.RelationshipStore.HighId;
// The progress counting of linking stages is special anyway, in that it uses the "progress" stats key,
// which is based on actual number of relationships, not relationship ids.
long actualRelationshipCount = distribution.RelationshipCount;
InitializeProgress(relationshipRecordIdCount + actualRelationshipCount * 2 + actualRelationshipCount * 2, ImportStage.Linking);
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldSplitUpRelationshipTypesInBatches()
public virtual void ShouldSplitUpRelationshipTypesInBatches()
{
// GIVEN
int denseNodeThreshold = 5;
int numberOfNodes = 100;
int numberOfTypes = 10;
NodeRelationshipCache cache = new NodeRelationshipCache(NumberArrayFactory.HEAP, denseNodeThreshold);
cache.NodeCount = numberOfNodes + 1;
Direction[] directions = Direction.values();
for (int i = 0; i < numberOfNodes; i++)
{
int count = Random.Next(1, denseNodeThreshold * 2);
cache.setCount(i, count, Random.Next(numberOfTypes), Random.among(directions));
}
cache.CountingCompleted();
IList <RelationshipTypeCount> types = new List <RelationshipTypeCount>();
int numberOfRelationships = 0;
for (int i = 0; i < numberOfTypes; i++)
{
int count = Random.Next(1, 100);
types.Add(new RelationshipTypeCount(i, count));
numberOfRelationships += count;
}
types.sort((t1, t2) => Long.compare(t2.Count, t1.Count));
DataStatistics typeDistribution = new DataStatistics(0, 0, types.ToArray());
{
// WHEN enough memory for all types
long memory = cache.CalculateMaxMemoryUsage(numberOfRelationships) * numberOfTypes;
int upToType = ImportLogic.NextSetOfTypesThatFitInMemory(typeDistribution, 0, memory, cache.NumberOfDenseNodes);
// THEN
assertEquals(types.Count, upToType);
}
{
// and WHEN less than enough memory for all types
long memory = cache.CalculateMaxMemoryUsage(numberOfRelationships) * numberOfTypes / 3;
int startingFromType = 0;
int rounds = 0;
while (startingFromType < types.Count)
{
rounds++;
startingFromType = ImportLogic.NextSetOfTypesThatFitInMemory(typeDistribution, startingFromType, memory, cache.NumberOfDenseNodes);
}
assertEquals(types.Count, startingFromType);
assertThat(rounds, greaterThan(1));
}
}
public override void Initialize(DependencyResolver dependencyResolver)
{
this._dependencyResolver = dependencyResolver;
Input_Estimates estimates = dependencyResolver.ResolveDependency(typeof(Input_Estimates));
BatchingNeoStores neoStores = dependencyResolver.ResolveDependency(typeof(BatchingNeoStores));
IdMapper idMapper = dependencyResolver.ResolveDependency(typeof(IdMapper));
NodeRelationshipCache nodeRelationshipCache = dependencyResolver.ResolveDependency(typeof(NodeRelationshipCache));
_pageCacheArrayFactoryMonitor = dependencyResolver.ResolveDependency(typeof(PageCacheArrayFactoryMonitor));
long biggestCacheMemory = estimatedCacheSize(neoStores, nodeRelationshipCache.MemoryEstimation(estimates.NumberOfNodes()), idMapper.MemoryEstimation(estimates.NumberOfNodes()));
PrintStageHeader("Import starting", ESTIMATED_NUMBER_OF_NODES, count(estimates.NumberOfNodes()), ESTIMATED_NUMBER_OF_NODE_PROPERTIES, count(estimates.NumberOfNodeProperties()), ESTIMATED_NUMBER_OF_RELATIONSHIPS, count(estimates.NumberOfRelationships()), ESTIMATED_NUMBER_OF_RELATIONSHIP_PROPERTIES, count(estimates.NumberOfRelationshipProperties()), ESTIMATED_DISK_SPACE_USAGE, bytes(NodesDiskUsage(estimates, neoStores) + RelationshipsDiskUsage(estimates, neoStores) + estimates.SizeOfNodeProperties() + estimates.SizeOfRelationshipProperties()), ESTIMATED_REQUIRED_MEMORY_USAGE, bytes(biggestCacheMemory));
Console.WriteLine();
}
