private void AssertNoContentInNativeLabelScanStore(DatabaseLayout databaseLayout)
{
using (Lifespan lifespan = new Lifespan())
{
NativeLabelScanStore nativeLabelScanStore = GetNativeLabelScanStore(databaseLayout, true);
lifespan.Add(nativeLabelScanStore);
using (LabelScanReader labelScanReader = nativeLabelScanStore.NewReader())
{
int count = PrimitiveLongCollections.count(labelScanReader.NodesWithLabel(1));
assertEquals(0, count);
}
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private void initializeNativeLabelScanStoreWithContent(org.neo4j.io.layout.DatabaseLayout databaseLayout) throws java.io.IOException
private void InitializeNativeLabelScanStoreWithContent(DatabaseLayout databaseLayout)
{
using (Lifespan lifespan = new Lifespan())
{
NativeLabelScanStore nativeLabelScanStore = GetNativeLabelScanStore(databaseLayout, false);
lifespan.Add(nativeLabelScanStore);
using (LabelScanWriter labelScanWriter = nativeLabelScanStore.NewWriter())
{
labelScanWriter.Write(NodeLabelUpdate.labelChanges(1, new long[0], new long[] { 1 }));
}
nativeLabelScanStore.Force(Org.Neo4j.Io.pagecache.IOLimiter_Fields.Unlimited);
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private void deleteNativeIndexFile(org.neo4j.io.layout.DatabaseLayout directoryStructure) throws java.io.IOException
private void DeleteNativeIndexFile(DatabaseLayout directoryStructure)
{
Optional <FileHandle> indexFile = _fileSystem.streamFilesRecursive(NativeLabelScanStore.getLabelScanStoreFile(directoryStructure)).findFirst();
if (indexFile.Present)
{
try
{
indexFile.get().delete();
}
catch (NoSuchFileException)
{
// Already deleted, ignore
}
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: public void migrate(org.neo4j.io.layout.DatabaseLayout directoryLayout, org.neo4j.io.layout.DatabaseLayout migrationLayout, org.neo4j.kernel.impl.util.monitoring.ProgressReporter progressReporter, String versionToMigrateFrom, String versionToMigrateTo) throws java.io.IOException
public override void Migrate(DatabaseLayout directoryLayout, DatabaseLayout migrationLayout, ProgressReporter progressReporter, string versionToMigrateFrom, string versionToMigrateTo)
{
if (IsNativeLabelScanStoreMigrationRequired(directoryLayout))
{
StoreFactory storeFactory = GetStoreFactory(directoryLayout, versionToMigrateFrom);
using (NeoStores neoStores = storeFactory.OpenAllNeoStores(), Lifespan lifespan = new Lifespan())
{
neoStores.VerifyStoreOk();
// Remove any existing file to ensure we always do migration
DeleteNativeIndexFile(migrationLayout);
progressReporter.Start(neoStores.NodeStore.NumberOfIdsInUse);
NativeLabelScanStore nativeLabelScanStore = GetNativeLabelScanStore(migrationLayout, progressReporter, neoStores);
lifespan.Add(nativeLabelScanStore);
}
_nativeLabelScanStoreMigrated = true;
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void populateNativeLabelScanIndexDuringMigration() throws java.io.IOException
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void PopulateNativeLabelScanIndexDuringMigration()
{
Prepare34DatabaseWithNodes();
_indexMigrator.migrate(_databaseLayout, _migrationLayout, _progressReporter, StandardV3_4.STORE_VERSION, StandardV3_4.STORE_VERSION);
_indexMigrator.moveMigratedFiles(_migrationLayout, _databaseLayout, StandardV2_3.STORE_VERSION, StandardV3_2.STORE_VERSION);
using (Lifespan lifespan = new Lifespan())
{
NativeLabelScanStore labelScanStore = GetNativeLabelScanStore(_databaseLayout, true);
lifespan.Add(labelScanStore);
for (int labelId = 0; labelId < 10; labelId++)
{
using (LabelScanReader labelScanReader = labelScanStore.NewReader())
{
int nodeCount = PrimitiveLongCollections.count(labelScanReader.NodesWithLabel(labelId));
assertEquals(format("Expected to see only one node for label %d but was %d.", labelId, nodeCount), 1, nodeCount);
}
}
}
}