public override SegmentInfo Read(Directory dir, string segment, IOContext context)
{
string fileName = IndexFileNames.SegmentFileName(segment, "", Lucene46SegmentInfoFormat.SI_EXTENSION);
ChecksumIndexInput input = dir.OpenChecksumInput(fileName, context);
bool success = false;
try
{
int codecVersion = CodecUtil.CheckHeader(input, Lucene46SegmentInfoFormat.CODEC_NAME, Lucene46SegmentInfoFormat.VERSION_START, Lucene46SegmentInfoFormat.VERSION_CURRENT);
string version = input.ReadString();
int docCount = input.ReadInt32();
if (docCount < 0)
{
throw new CorruptIndexException("invalid docCount: " + docCount + " (resource=" + input + ")");
}
bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
IDictionary <string, string> diagnostics = input.ReadStringStringMap();
ISet <string> files = input.ReadStringSet();
if (codecVersion >= Lucene46SegmentInfoFormat.VERSION_CHECKSUM)
{
CodecUtil.CheckFooter(input);
}
else
{
#pragma warning disable 612, 618
CodecUtil.CheckEOF(input);
#pragma warning restore 612, 618
}
SegmentInfo si = new SegmentInfo(dir, version, segment, docCount, isCompoundFile, null, diagnostics);
si.SetFiles(files);
success = true;
return(si);
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(input);
}
else
{
input.Dispose();
}
}
}
private SegmentInfo ReadUpgradedSegmentInfo(string name, Directory dir, IndexInput input)
{
CodecUtil.CheckHeader(input, Lucene3xSegmentInfoFormat.UPGRADED_SI_CODEC_NAME, Lucene3xSegmentInfoFormat.UPGRADED_SI_VERSION_START, Lucene3xSegmentInfoFormat.UPGRADED_SI_VERSION_CURRENT);
string version = input.ReadString();
int docCount = input.ReadInt32();
IDictionary <string, string> attributes = input.ReadStringStringMap();
bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
IDictionary <string, string> diagnostics = input.ReadStringStringMap();
ISet <string> files = input.ReadStringSet();
SegmentInfo info = new SegmentInfo(dir, version, name, docCount, isCompoundFile, null, diagnostics, Collections.UnmodifiableMap(attributes));
info.SetFiles(files);
return(info);
}
public override SegmentInfo Read(Directory directory, string segmentName, IOContext context)
{
var 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, SimpleTextSegmentInfoWriter.SI_VERSION));
string version = ReadString(SimpleTextSegmentInfoWriter.SI_VERSION.Length, scratch);
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SimpleTextSegmentInfoWriter.SI_DOCCOUNT));
int docCount = Convert.ToInt32(ReadString(SimpleTextSegmentInfoWriter.SI_DOCCOUNT.Length, scratch), CultureInfo.InvariantCulture);
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SimpleTextSegmentInfoWriter.SI_USECOMPOUND));
bool isCompoundFile = Convert.ToBoolean(ReadString(SimpleTextSegmentInfoWriter.SI_USECOMPOUND.Length, scratch), CultureInfo.InvariantCulture);
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SimpleTextSegmentInfoWriter.SI_NUM_DIAG));
int numDiag = Convert.ToInt32(ReadString(SimpleTextSegmentInfoWriter.SI_NUM_DIAG.Length, scratch), CultureInfo.InvariantCulture);
IDictionary <string, string> diagnostics = new Dictionary <string, string>();
for (int i = 0; i < numDiag; i++)
{
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SimpleTextSegmentInfoWriter.SI_DIAG_KEY));
string key = ReadString(SimpleTextSegmentInfoWriter.SI_DIAG_KEY.Length, scratch);
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SimpleTextSegmentInfoWriter.SI_DIAG_VALUE));
string value = ReadString(SimpleTextSegmentInfoWriter.SI_DIAG_VALUE.Length, scratch);
diagnostics[key] = value;
}
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SimpleTextSegmentInfoWriter.SI_NUM_FILES));
int numFiles = Convert.ToInt32(ReadString(SimpleTextSegmentInfoWriter.SI_NUM_FILES.Length, scratch), CultureInfo.InvariantCulture);
var files = new HashSet <string>();
for (int i = 0; i < numFiles; i++)
{
SimpleTextUtil.ReadLine(input, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, SimpleTextSegmentInfoWriter.SI_FILE));
string fileName = ReadString(SimpleTextSegmentInfoWriter.SI_FILE.Length, scratch);
files.Add(fileName);
}
SimpleTextUtil.CheckFooter(input);
var info = new SegmentInfo(directory, version, segmentName, docCount, isCompoundFile, null,
diagnostics);
info.SetFiles(files);
success = true;
return(info);
}
finally
{
if (!success)
{
IOUtils.DisposeWhileHandlingException(input);
}
else
{
input.Dispose();
}
}
}
/// <summary>
/// reads from legacy 3.x segments_N </summary>
private SegmentCommitInfo ReadLegacySegmentInfo(Directory dir, int format, IndexInput input)
{
// check that it is a format we can understand
if (format > Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS)
{
throw new IndexFormatTooOldException(input, format, Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS, Lucene3xSegmentInfoFormat.FORMAT_3_1);
}
if (format < Lucene3xSegmentInfoFormat.FORMAT_3_1)
{
throw new IndexFormatTooNewException(input, format, Lucene3xSegmentInfoFormat.FORMAT_DIAGNOSTICS, Lucene3xSegmentInfoFormat.FORMAT_3_1);
}
string version;
if (format <= Lucene3xSegmentInfoFormat.FORMAT_3_1)
{
version = input.ReadString();
}
else
{
version = null;
}
string name = input.ReadString();
int docCount = input.ReadInt32();
long delGen = input.ReadInt64();
int docStoreOffset = input.ReadInt32();
IDictionary <string, string> attributes = new Dictionary <string, string>();
// parse the docstore stuff and shove it into attributes
string docStoreSegment;
bool docStoreIsCompoundFile;
if (docStoreOffset != -1)
{
docStoreSegment = input.ReadString();
docStoreIsCompoundFile = input.ReadByte() == SegmentInfo.YES;
attributes[Lucene3xSegmentInfoFormat.DS_OFFSET_KEY] = Convert.ToString(docStoreOffset, CultureInfo.InvariantCulture);
attributes[Lucene3xSegmentInfoFormat.DS_NAME_KEY] = docStoreSegment;
attributes[Lucene3xSegmentInfoFormat.DS_COMPOUND_KEY] = Convert.ToString(docStoreIsCompoundFile, CultureInfo.InvariantCulture);
}
else
{
docStoreSegment = name;
docStoreIsCompoundFile = false;
}
// pre-4.0 indexes write a byte if there is a single norms file
byte b = input.ReadByte();
//System.out.println("version=" + version + " name=" + name + " docCount=" + docCount + " delGen=" + delGen + " dso=" + docStoreOffset + " dss=" + docStoreSegment + " dssCFs=" + docStoreIsCompoundFile + " b=" + b + " format=" + format);
Debug.Assert(1 == b, "expected 1 but was: " + b + " format: " + format);
int numNormGen = input.ReadInt32();
IDictionary <int, long> normGen;
if (numNormGen == SegmentInfo.NO)
{
normGen = null;
}
else
{
normGen = new Dictionary <int, long>();
for (int j = 0; j < numNormGen; j++)
{
normGen[j] = input.ReadInt64();
}
}
bool isCompoundFile = input.ReadByte() == SegmentInfo.YES;
int delCount = input.ReadInt32();
Debug.Assert(delCount <= docCount);
bool hasProx = input.ReadByte() == 1;
IDictionary <string, string> diagnostics = input.ReadStringStringMap();
if (format <= Lucene3xSegmentInfoFormat.FORMAT_HAS_VECTORS)
{
// NOTE: unused
int hasVectors = input.ReadByte();
}
// Replicate logic from 3.x's SegmentInfo.files():
ISet <string> files = new HashSet <string>();
if (isCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(name, "", IndexFileNames.COMPOUND_FILE_EXTENSION));
}
else
{
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xFieldInfosReader.FIELD_INFOS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.FREQ_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.PROX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.TERMS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xPostingsFormat.TERMS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xNormsProducer.NORMS_EXTENSION));
}
if (docStoreOffset != -1)
{
if (docStoreIsCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xCodec.COMPOUND_FILE_STORE_EXTENSION));
}
else
{
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xStoredFieldsReader.FIELDS_INDEX_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xStoredFieldsReader.FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(docStoreSegment, "", Lucene3xTermVectorsReader.VECTORS_DOCUMENTS_EXTENSION));
}
}
else if (!isCompoundFile)
{
files.Add(IndexFileNames.SegmentFileName(name, "", Lucene3xStoredFieldsReader.FIELDS_INDEX_EXTENSION));
files.Add(IndexFileNames.SegmentFileName(name, "", Lucene3xStoredFieldsReader.FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_INDEX_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_FIELDS_EXTENSION));
AddIfExists(dir, files, IndexFileNames.SegmentFileName(name, "", Lucene3xTermVectorsReader.VECTORS_DOCUMENTS_EXTENSION));
}
// parse the normgen stuff and shove it into attributes
if (normGen != null)
{
attributes[Lucene3xSegmentInfoFormat.NORMGEN_KEY] = Convert.ToString(numNormGen, CultureInfo.InvariantCulture);
foreach (KeyValuePair <int, long> ent in normGen)
{
long gen = ent.Value;
if (gen >= SegmentInfo.YES)
{
// Definitely a separate norm file, with generation:
files.Add(IndexFileNames.FileNameFromGeneration(name, "s" + ent.Key, gen));
attributes[Lucene3xSegmentInfoFormat.NORMGEN_PREFIX + ent.Key] = Convert.ToString(gen, CultureInfo.InvariantCulture);
}
else if (gen == SegmentInfo.NO)
{
// No separate norm
}
else
{
// We should have already hit indexformat too old exception
Debug.Assert(false);
}
}
}
SegmentInfo info = new SegmentInfo(dir, version, name, docCount, isCompoundFile, null, diagnostics, Collections.UnmodifiableMap(attributes));
info.SetFiles(files);
SegmentCommitInfo infoPerCommit = new SegmentCommitInfo(info, delCount, delGen, -1);
return(infoPerCommit);
}