private void InitializeInstanceFields()
{
_fileNames = new FileNames(_baseDirectory);
_readerPool = new ReaderPool(0, Instance, _fileNames, _fsa, Clocks.fakeClock());
_fileA = spy(new SegmentFile(_fsa, _fileNames.getForVersion(0), _readerPool, 0, _contentMarshal, _logProvider, _header));
_fileB = spy(new SegmentFile(_fsa, _fileNames.getForVersion(1), _readerPool, 1, _contentMarshal, _logProvider, _header));
_segmentFiles = new IList <SegmentFile> {
_fileA, _fileB
};
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldRecoverEvenIfLastHeaderIsMissing() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldRecoverEvenIfLastHeaderIsMissing()
{
// given
CreateLogFile(_fsa, -1, 0, 0, -1, -1);
CreateEmptyLogFile(_fsa, 1);
RecoveryProtocol protocol = new RecoveryProtocol(_fsa, _fileNames, _readerPool, _contentMarshal, NullLogProvider.Instance);
// when
protocol.Run();
// then
assertNotEquals(0, _fsa.getFileSize(_fileNames.getForVersion(1)));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldDeleteOnPrune() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldDeleteOnPrune()
{
verifyZeroInteractions(_fsa);
// Given
using (Segments segments = new Segments(_fsa, _fileNames, _readerPool, _segmentFiles, _contentMarshal, _logProvider, -1))
{
// this is version 0 and will be deleted on prune later
SegmentFile toPrune = segments.Rotate(-1, -1, -1);
segments.Last().closeWriter(); // need to close writer otherwise dispose will not be called
segments.Rotate(10, 10, 2);
segments.Last().closeWriter(); // ditto
segments.Rotate(20, 20, 2);
// When
segments.Prune(11);
verify(_fsa, times(_segmentFiles.Count)).deleteFile(_fileNames.getForVersion(toPrune.Header().version()));
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private synchronized SegmentFile createNext(long prevFileLastIndex, long prevIndex, long prevTerm) throws java.io.IOException
private SegmentFile CreateNext(long prevFileLastIndex, long prevIndex, long prevTerm)
{
lock (this)
{
_currentVersion++;
SegmentHeader header = new SegmentHeader(prevFileLastIndex, _currentVersion, prevIndex, prevTerm);
File file = _fileNames.getForVersion(_currentVersion);
SegmentFile segment = SegmentFile.Create(_fileSystem, file, _readerPool, _currentVersion, _contentMarshal, _logProvider, header);
// TODO: Force base directory... probably not possible using fsa.
segment.Flush();
_allSegments.Add(segment);
_rangeMap.replaceFrom(prevIndex + 1, segment);
return(segment);
}
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldReportCorrectInitialValues() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldReportCorrectInitialValues()
{
using (SegmentFile segment = create(FsRule.get(), _fileNames.getForVersion(0), _readerPool, _version, _contentMarshal, _logProvider, _segmentHeader))
{
assertEquals(0, segment.Header().version());
IOCursor <EntryRecord> cursor = segment.GetCursor(0);
assertFalse(cursor.next());
cursor.close();
}
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: State run() throws java.io.IOException, DamagedLogStorageException, DisposedException
internal virtual State Run()
{
State state = new State();
SortedDictionary <long, File> files = _fileNames.getAllFiles(_fileSystem, _log);
if (Files.SetOfKeyValuePairs().Empty)
{
state.Segments = new Segments(_fileSystem, _fileNames, _readerPool, emptyList(), _contentMarshal, _logProvider, -1);
state.Segments.rotate(-1, -1, -1);
state.Terms = new Terms(-1, -1);
return(state);
}
IList <SegmentFile> segmentFiles = new List <SegmentFile>();
SegmentFile segment = null;
long expectedVersion = Files.firstKey();
bool mustRecoverLastHeader = false;
bool skip = true; // the first file is treated the same as a skip
foreach (KeyValuePair <long, File> entry in Files.SetOfKeyValuePairs())
{
long fileNameVersion = entry.Key;
File file = entry.Value;
SegmentHeader header;
CheckVersionSequence(fileNameVersion, expectedVersion);
try
{
header = LoadHeader(_fileSystem, file);
CheckVersionMatches(header.Version(), fileNameVersion);
}
catch (EndOfStreamException e)
{
if (Files.lastKey() != fileNameVersion)
{
throw new DamagedLogStorageException(e, "Intermediate file with incomplete or no header found: %s", file);
}
else if (Files.Count == 1)
{
throw new DamagedLogStorageException(e, "Single file with incomplete or no header found: %s", file);
}
/* Last file header must be recovered by scanning next-to-last file and writing a new header based on that. */
mustRecoverLastHeader = true;
break;
}
segment = new SegmentFile(_fileSystem, file, _readerPool, fileNameVersion, _contentMarshal, _logProvider, header);
segmentFiles.Add(segment);
if (segment.Header().prevIndex() != segment.Header().prevFileLastIndex())
{
_log.info(format("Skipping from index %d to %d.", segment.Header().prevFileLastIndex(), segment.Header().prevIndex() + 1));
skip = true;
}
if (skip)
{
state.PrevIndex = segment.Header().prevIndex();
state.PrevTerm = segment.Header().prevTerm();
skip = false;
}
expectedVersion++;
}
Debug.Assert(segment != null);
state.AppendIndex = segment.Header().prevIndex();
state.Terms = new Terms(segment.Header().prevIndex(), segment.Header().prevTerm());
using (IOCursor <EntryRecord> cursor = segment.GetCursor(segment.Header().prevIndex() + 1))
{
while (cursor.next())
{
EntryRecord entry = cursor.get();
state.AppendIndex = entry.LogIndex();
state.Terms.append(state.AppendIndex, entry.LogEntry().term());
}
}
if (mustRecoverLastHeader)
{
SegmentHeader header = new SegmentHeader(state.AppendIndex, expectedVersion, state.AppendIndex, state.Terms.latest());
_log.warn("Recovering last file based on next-to-last file. " + header);
File file = _fileNames.getForVersion(expectedVersion);
WriteHeader(_fileSystem, file, header);
segment = new SegmentFile(_fileSystem, file, _readerPool, expectedVersion, _contentMarshal, _logProvider, header);
segmentFiles.Add(segment);
}
state.Segments = new Segments(_fileSystem, _fileNames, _readerPool, segmentFiles, _contentMarshal, _logProvider, segment.Header().version());
return(state);
}
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private Reader createFor(long version) throws java.io.IOException
private Reader CreateFor(long version)
{
return(new Reader(_fsa, _fileNames.getForVersion(version), version));
}