public static void CheckFooter(ChecksumIndexInput input)
{
var scratch = new BytesRef();
var expectedChecksum = string.Format("{0:D}", input.Checksum);
ReadLine(input, scratch);
if (StringHelper.StartsWith(scratch, CHECKSUM) == false)
{
throw new CorruptIndexException("SimpleText failure: expected checksum line but got " +
scratch.Utf8ToString() + " (resource=" + input + ")");
}
var actualChecksum =
(new BytesRef(scratch.Bytes, CHECKSUM.Length, scratch.Length - CHECKSUM.Length)).Utf8ToString();
if (!expectedChecksum.Equals(actualChecksum))
{
throw new CorruptIndexException("SimpleText checksum failure: " + actualChecksum + " != " +
expectedChecksum + " (resource=" + input + ")");
}
if (input.Length() != input.FilePointer)
{
throw new CorruptIndexException(
"Unexpected stuff at the end of file, please be careful with your text editor! (resource=" + input +
")");
}
}
public static void CheckFooter(ChecksumIndexInput input)
{
var scratch = new BytesRef();
var expectedChecksum = string.Format("{0:D}", input.Checksum);
ReadLine(input, scratch);
if (StringHelper.StartsWith(scratch, CHECKSUM) == false)
{
throw new CorruptIndexException("SimpleText failure: expected checksum line but got " +
scratch.Utf8ToString() + " (resource=" + input + ")");
}
var actualChecksum =
(new BytesRef(scratch.Bytes, CHECKSUM.Length, scratch.Length - CHECKSUM.Length)).Utf8ToString();
if (!expectedChecksum.Equals(actualChecksum))
{
throw new CorruptIndexException("SimpleText checksum failure: " + actualChecksum + " != " +
expectedChecksum + " (resource=" + input + ")");
}
if (input.Length() != input.FilePointer)
{
throw new CorruptIndexException(
"Unexpected stuff at the end of file, please be careful with your text editor! (resource=" + input +
")");
}
}
public override Bits ReadLiveDocs(Directory dir, SegmentCommitInfo info, IOContext context)
{
Debug.Assert(info.HasDeletions());
var scratch = new BytesRef();
var scratchUtf16 = new CharsRef();
var fileName = IndexFileNames.FileNameFromGeneration(info.Info.Name, LIVEDOCS_EXTENSION, info.DelGen);
ChecksumIndexInput input = null;
var success = false;
try
{
input = dir.OpenChecksumInput(fileName, context);
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SIZE));
var size = ParseIntAt(scratch, SIZE.Length, scratchUtf16);
var bits = new BitArray(size);
SimpleTextUtil.ReadLine(input, scratch);
while (!scratch.Equals(END))
{
Debug.Assert(StringHelper.StartsWith(scratch, DOC));
var docid = ParseIntAt(scratch, DOC.Length, scratchUtf16);
bits.Set(docid, true);
SimpleTextUtil.ReadLine(input, scratch);
}
SimpleTextUtil.CheckFooter(input);
success = true;
return(new SimpleTextBits(bits, size));
}
finally
{
if (success)
{
IOUtils.Close(input);
}
else
{
IOUtils.CloseWhileHandlingException(input);
}
}
}
public override SegmentInfo Read(Directory directory, string segmentName, IOContext context)
{
BytesRef scratch = new BytesRef();
string segFileName = IndexFileNames.SegmentFileName(segmentName, "",
SimpleTextSegmentInfoFormat.SI_EXTENSION);
ChecksumIndexInput input = directory.OpenChecksumInput(segFileName, context);
bool success = false;
try
{
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SI_VERSION));
string version = ReadString(SI_VERSION.length, scratch);
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SI_DOCCOUNT));
int docCount = Convert.ToInt32(ReadString(SI_DOCCOUNT.length, scratch));
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SI_USECOMPOUND));
bool isCompoundFile = Convert.ToBoolean(ReadString(SI_USECOMPOUND.length, scratch));
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SI_NUM_DIAG));
int numDiag = Convert.ToInt32(ReadString(SI_NUM_DIAG.length, scratch));
IDictionary <string, string> diagnostics = new Dictionary <string, string>();
for (int i = 0; i < numDiag; i++)
{
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SI_DIAG_KEY));
string key = ReadString(SI_DIAG_KEY.length, scratch);
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SI_DIAG_VALUE));
string value = ReadString(SI_DIAG_VALUE.length, scratch);
diagnostics[key] = value;
}
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SI_NUM_FILES));
int numFiles = Convert.ToInt32(ReadString(SI_NUM_FILES.length, scratch));
HashSet <string> files = new HashSet <string>();
for (int i = 0; i < numFiles; i++)
{
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SI_FILE));
string fileName = ReadString(SI_FILE.length, scratch);
files.Add(fileName);
}
SimpleTextUtil.CheckFooter(input);
SegmentInfo info = new SegmentInfo(directory, version, segmentName, docCount, isCompoundFile, null,
diagnostics);
info.Files = files;
success = true;
return(info);
}
finally
{
if (!success)
{
IOUtils.CloseWhileHandlingException(input);
}
else
{
input.Close();
}
}
}
