//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void verifyFixedSizeStoresCanRebuildIdGeneratorSlowly()
public virtual void VerifyFixedSizeStoresCanRebuildIdGeneratorSlowly()
{
// Given we have a store ...
Config config = Config.defaults(GraphDatabaseSettings.rebuild_idgenerators_fast, "false");
File storeFile = _testDirectory.file("nodes");
File idFile = _testDirectory.file("idNodes");
DynamicArrayStore labelStore = mock(typeof(DynamicArrayStore));
NodeStore store = new NodeStore(storeFile, idFile, config, new DefaultIdGeneratorFactory(_fs), PageCacheRule.getPageCache(_fs), NullLogProvider.Instance, labelStore, RecordFormatSelector.defaultFormat());
store.Initialise(true);
store.MakeStoreOk();
// ... that contain a number of records ...
NodeRecord record = new NodeRecord(0);
record.InUse = true;
int highestId = 50;
for (int i = 0; i < highestId; i++)
{
assertThat(store.NextId(), @is((long)i));
record.Id = i;
store.UpdateRecord(record);
}
store.HighestPossibleIdInUse = highestId;
// ... and some have been deleted
long?[] idsToFree = new long?[] { 2L, 3L, 5L, 7L };
record.InUse = false;
foreach (long toDelete in idsToFree)
{
record.Id = toDelete;
store.UpdateRecord(record);
}
// Then when we rebuild the id generator
store.RebuildIdGenerator();
store.CloseIdGenerator();
store.OpenIdGenerator(); // simulate a restart to allow id reuse
// We should observe that the ids above got freed
IList <long> nextIds = new List <long>();
nextIds.Add(store.NextId()); // 2
nextIds.Add(store.NextId()); // 3
nextIds.Add(store.NextId()); // 5
nextIds.Add(store.NextId()); // 7
nextIds.Add(store.NextId()); // 51
assertThat(nextIds, contains(2L, 3L, 5L, 7L, 50L));
store.Close();
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void rebuildingIdGeneratorMustNotMissOutOnFreeRecordsAtEndOfFilePage()
public virtual void RebuildingIdGeneratorMustNotMissOutOnFreeRecordsAtEndOfFilePage()
{
// Given we have a store ...
Config config = Config.defaults(GraphDatabaseSettings.rebuild_idgenerators_fast, "false");
File storeFile = _testDirectory.file("nodes");
File idFile = _testDirectory.file("idNodes");
DynamicArrayStore labelStore = mock(typeof(DynamicArrayStore));
NodeStore store = new NodeStore(storeFile, idFile, config, new DefaultIdGeneratorFactory(_fs), PageCacheRule.getPageCache(_fs), NullLogProvider.Instance, labelStore, RecordFormatSelector.defaultFormat());
store.Initialise(true);
store.MakeStoreOk();
// ... that contain enough records to fill several file pages ...
int recordsPerPage = store.RecordsPerPage;
NodeRecord record = new NodeRecord(0);
record.InUse = true;
int highestId = recordsPerPage * 3; // 3 pages worth of records
for (int i = 0; i < highestId; i++)
{
assertThat(store.NextId(), @is((long)i));
record.Id = i;
store.UpdateRecord(record);
}
store.HighestPossibleIdInUse = highestId;
// ... and some records at the end of a page have been deleted
long?[] idsToFree = new long?[] { recordsPerPage - 2L, recordsPerPage - 1L }; // id's are zero based, hence -2 and -1
record.InUse = false;
foreach (long toDelete in idsToFree)
{
record.Id = toDelete;
store.UpdateRecord(record);
}
// Then when we rebuild the id generator
store.RebuildIdGenerator();
store.CloseIdGenerator();
store.OpenIdGenerator(); // simulate a restart to allow id reuse
// We should observe that the ids above got freed
IList <long> nextIds = new List <long>();
nextIds.Add(store.NextId()); // recordsPerPage - 2
nextIds.Add(store.NextId()); // recordsPerPage - 1
nextIds.Add(store.NextId()); // recordsPerPage * 3 (we didn't use this id in the create-look above)
assertThat(nextIds, contains(recordsPerPage - 2L, recordsPerPage - 1L, recordsPerPage * 3L));
store.Close();
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldCompletelyRebuildIdGeneratorsAfterCrash()
public virtual void ShouldCompletelyRebuildIdGeneratorsAfterCrash()
{
// GIVEN
DatabaseLayout databaseLayout = _directory.databaseLayout();
StoreFactory storeFactory = new StoreFactory(databaseLayout, Config.defaults(), new DefaultIdGeneratorFactory(_fileSystemRule.get()), _pageCacheRule.getPageCache(_fileSystemRule.get()), _fileSystemRule.get(), NullLogProvider.Instance, EmptyVersionContextSupplier.EMPTY);
long highId;
using (NeoStores stores = storeFactory.OpenAllNeoStores(true))
{
// a node store with a "high" node
NodeStore nodeStore = stores.NodeStore;
nodeStore.HighId = 20;
nodeStore.UpdateRecord(Node(nodeStore.NextId()));
highId = nodeStore.HighId;
}
// populating its .id file with a bunch of ids
File nodeIdFile = databaseLayout.IdNodeStore();
using (IdGeneratorImpl idGenerator = new IdGeneratorImpl(_fileSystemRule.get(), nodeIdFile, 10, 10_000, false, IdType.NODE, () => highId))
{
for (long id = 0; id < 15; id++)
{
idGenerator.FreeId(id);
}
// WHEN
using (NeoStores stores = storeFactory.OpenAllNeoStores(true))
{
NodeStore nodeStore = stores.NodeStore;
assertFalse(nodeStore.StoreOk);
// simulating what recovery does
nodeStore.DeleteIdGenerator();
// recovery happens here...
nodeStore.MakeStoreOk();
// THEN
assertEquals(highId, nodeStore.NextId());
}
}
}
