/// <summary> Save this segment's info.</summary>
internal void Write(IndexOutput output)
{
output.WriteString(name);
output.WriteInt(docCount);
output.WriteLong(delGen);
output.WriteInt(docStoreOffset);
if (docStoreOffset != -1)
{
output.WriteString(docStoreSegment);
output.WriteByte((byte)(docStoreIsCompoundFile?1:0));
}
output.WriteByte((byte)(hasSingleNormFile?1:0));
if (normGen == null)
{
output.WriteInt(NO);
}
else
{
output.WriteInt(normGen.Length);
for (int j = 0; j < normGen.Length; j++)
{
output.WriteLong(normGen[j]);
}
}
output.WriteByte((byte)isCompoundFile);
output.WriteInt(delCount);
output.WriteByte((byte)(hasProx?1:0));
output.WriteStringStringMap(diagnostics);
}
private void Initialize(Directory directory, System.String segment, FieldInfos fis, int interval, bool isi)
{
indexInterval = interval;
fieldInfos = fis;
isIndex = isi;
output = directory.CreateOutput(segment + (isIndex?".tii":".tis"));
output.WriteInt(FORMAT_CURRENT); // write format
output.WriteLong(0); // leave space for size
output.WriteInt(indexInterval); // write indexInterval
output.WriteInt(skipInterval); // write skipInterval
output.WriteInt(maxSkipLevels); // write maxSkipLevels
System.Diagnostics.Debug.Assert(InitUTF16Results());
}
internal void InitTermVectorsWriter()
{
lock (this)
{
if (tvx == null)
{
System.String docStoreSegment = docWriter.GetDocStoreSegment();
if (docStoreSegment == null)
{
return;
}
System.Diagnostics.Debug.Assert(docStoreSegment != null);
// If we hit an exception while init'ing the term
// vector output files, we must abort this segment
// because those files will be in an unknown
// state:
tvx = docWriter.directory.CreateOutput(docStoreSegment + "." + IndexFileNames.VECTORS_INDEX_EXTENSION);
tvd = docWriter.directory.CreateOutput(docStoreSegment + "." + IndexFileNames.VECTORS_DOCUMENTS_EXTENSION);
tvf = docWriter.directory.CreateOutput(docStoreSegment + "." + IndexFileNames.VECTORS_FIELDS_EXTENSION);
tvx.WriteInt(TermVectorsReader.FORMAT_CURRENT);
tvd.WriteInt(TermVectorsReader.FORMAT_CURRENT);
tvf.WriteInt(TermVectorsReader.FORMAT_CURRENT);
docWriter.AddOpenFile(docStoreSegment + "." + IndexFileNames.VECTORS_INDEX_EXTENSION);
docWriter.AddOpenFile(docStoreSegment + "." + IndexFileNames.VECTORS_FIELDS_EXTENSION);
docWriter.AddOpenFile(docStoreSegment + "." + IndexFileNames.VECTORS_DOCUMENTS_EXTENSION);
lastDocID = 0;
}
}
}
/// <summary>Write as a d-gaps list </summary>
private void WriteDgaps(IndexOutput output)
{
output.WriteInt(-1); // mark using d-gaps
output.WriteInt(Size()); // write size
output.WriteInt(Count()); // write count
int last = 0;
int n = Count();
int m = bits.Length;
for (int i = 0; i < m && n > 0; i++)
{
if (bits[i] != 0)
{
output.WriteVInt(i - last);
output.WriteByte(bits[i]);
last = i;
n -= BYTE_COUNTS[bits[i] & 0xFF];
}
}
}
public TermVectorsWriter(Directory directory, System.String segment, FieldInfos fieldInfos)
{
// Open files for TermVector storage
tvx = directory.CreateOutput(segment + "." + IndexFileNames.VECTORS_INDEX_EXTENSION);
tvx.WriteInt(TermVectorsReader.FORMAT_CURRENT);
tvd = directory.CreateOutput(segment + "." + IndexFileNames.VECTORS_DOCUMENTS_EXTENSION);
tvd.WriteInt(TermVectorsReader.FORMAT_CURRENT);
tvf = directory.CreateOutput(segment + "." + IndexFileNames.VECTORS_FIELDS_EXTENSION);
tvf.WriteInt(TermVectorsReader.FORMAT_CURRENT);
this.fieldInfos = fieldInfos;
}
public TermVectorsWriter(Directory directory, System.String segment, FieldInfos fieldInfos)
{
// Open files for TermVector storage
tvx = directory.CreateOutput(segment + "." + IndexFileNames.VECTORS_INDEX_EXTENSION);
tvx.WriteInt(TermVectorsReader.FORMAT_CURRENT);
tvd = directory.CreateOutput(segment + "." + IndexFileNames.VECTORS_DOCUMENTS_EXTENSION);
tvd.WriteInt(TermVectorsReader.FORMAT_CURRENT);
tvf = directory.CreateOutput(segment + "." + IndexFileNames.VECTORS_FIELDS_EXTENSION);
tvf.WriteInt(TermVectorsReader.FORMAT_CURRENT);
this.fieldInfos = fieldInfos;
}
internal FieldsWriter(Directory d, System.String segment, FieldInfos fn)
{
fieldInfos = fn;
bool success = false;
System.String fieldsName = segment + "." + IndexFileNames.FIELDS_EXTENSION;
try
{
fieldsStream = d.CreateOutput(fieldsName);
fieldsStream.WriteInt(FORMAT_CURRENT);
success = true;
}
finally
{
if (!success)
{
try
{
Close();
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
try
{
d.DeleteFile(fieldsName);
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
}
}
success = false;
System.String indexName = segment + "." + IndexFileNames.FIELDS_INDEX_EXTENSION;
try
{
indexStream = d.CreateOutput(indexName);
indexStream.WriteInt(FORMAT_CURRENT);
success = true;
}
finally
{
if (!success)
{
try
{
Close();
}
catch (System.IO.IOException ioe)
{
}
try
{
d.DeleteFile(fieldsName);
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
try
{
d.DeleteFile(indexName);
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
}
}
doClose = true;
}
/// <summary> Save this segment's info.</summary>
internal void Write(IndexOutput output)
{
output.WriteString(name);
output.WriteInt(docCount);
output.WriteLong(delGen);
output.WriteInt(docStoreOffset);
if (docStoreOffset != - 1)
{
output.WriteString(docStoreSegment);
output.WriteByte((byte) (docStoreIsCompoundFile?1:0));
}
output.WriteByte((byte) (hasSingleNormFile?1:0));
if (normGen == null)
{
output.WriteInt(NO);
}
else
{
output.WriteInt(normGen.Length);
for (int j = 0; j < normGen.Length; j++)
{
output.WriteLong(normGen[j]);
}
}
output.WriteByte((byte) isCompoundFile);
output.WriteInt(delCount);
output.WriteByte((byte) (hasProx?1:0));
output.WriteStringStringMap(diagnostics);
}
private void Initialize(Directory directory, System.String segment, FieldInfos fis, int interval, bool isi)
{
indexInterval = interval;
fieldInfos = fis;
isIndex = isi;
output = directory.CreateOutput(segment + (isIndex?".tii":".tis"));
output.WriteInt(FORMAT_CURRENT); // write format
output.WriteLong(0); // leave space for size
output.WriteInt(indexInterval); // write indexInterval
output.WriteInt(skipInterval); // write skipInterval
output.WriteInt(maxSkipLevels); // write maxSkipLevels
System.Diagnostics.Debug.Assert(InitUTF16Results());
}
/// <summary>Write as a bit set </summary>
private void WriteBits(IndexOutput output)
{
output.WriteInt(Size()); // write size
output.WriteInt(Count()); // write count
output.WriteBytes(bits, bits.Length);
}
internal FieldsWriter(Directory d, System.String segment, FieldInfos fn)
{
fieldInfos = fn;
bool success = false;
System.String fieldsName = segment + "." + IndexFileNames.FIELDS_EXTENSION;
try
{
fieldsStream = d.CreateOutput(fieldsName);
fieldsStream.WriteInt(FORMAT_CURRENT);
success = true;
}
finally
{
if (!success)
{
try
{
Close();
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
try
{
d.DeleteFile(fieldsName);
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
}
}
success = false;
System.String indexName = segment + "." + IndexFileNames.FIELDS_INDEX_EXTENSION;
try
{
indexStream = d.CreateOutput(indexName);
indexStream.WriteInt(FORMAT_CURRENT);
success = true;
}
finally
{
if (!success)
{
try
{
Close();
}
catch (System.IO.IOException ioe)
{
}
try
{
d.DeleteFile(fieldsName);
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
try
{
d.DeleteFile(indexName);
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
}
}
doClose = true;
}
/// <summary>Write as a d-gaps list </summary>
private void WriteDgaps(IndexOutput output)
{
output.WriteInt(- 1); // mark using d-gaps
output.WriteInt(Size()); // write size
output.WriteInt(Count()); // write count
int last = 0;
int n = Count();
int m = bits.Length;
for (int i = 0; i < m && n > 0; i++)
{
if (bits[i] != 0)
{
output.WriteVInt(i - last);
output.WriteByte(bits[i]);
last = i;
n -= BYTE_COUNTS[bits[i] & 0xFF];
}
}
}
/// <summary>Write as a bit set </summary>
private void WriteBits(IndexOutput output)
{
output.WriteInt(Size()); // write size
output.WriteInt(Count()); // write count
output.WriteBytes(bits, bits.Length);
}
internal void FinishCommit(Directory dir)
{
if (pendingSegnOutput == null)
{
throw new System.SystemException("prepareCommit was not called");
}
bool success = false;
try
{
pendingSegnOutput.FinishCommit();
pendingSegnOutput.Close();
pendingSegnOutput = null;
success = true;
}
finally
{
if (!success)
{
RollbackCommit(dir);
}
}
// NOTE: if we crash here, we have left a segments_N
// file in the directory in a possibly corrupt state (if
// some bytes made it to stable storage and others
// didn't). But, the segments_N file includes checksum
// at the end, which should catch this case. So when a
// reader tries to read it, it will throw a
// CorruptIndexException, which should cause the retry
// logic in SegmentInfos to kick in and load the last
// good (previous) segments_N-1 file.
System.String fileName = IndexFileNames.FileNameFromGeneration(IndexFileNames.SEGMENTS, "", generation);
success = false;
try
{
dir.Sync(fileName);
success = true;
}
finally
{
if (!success)
{
try
{
dir.DeleteFile(fileName);
}
catch (System.Exception t)
{
// Suppress so we keep throwing the original exception
}
}
}
lastGeneration = generation;
try
{
IndexOutput genOutput = dir.CreateOutput(IndexFileNames.SEGMENTS_GEN);
try
{
genOutput.WriteInt(FORMAT_LOCKLESS);
genOutput.WriteLong(generation);
genOutput.WriteLong(generation);
}
finally
{
genOutput.Close();
}
}
catch (System.Exception t)
{
// It's OK if we fail to write this file since it's
// used only as one of the retry fallbacks.
}
}
internal void InitTermVectorsWriter()
{
lock (this)
{
if (tvx == null)
{
System.String docStoreSegment = docWriter.GetDocStoreSegment();
if (docStoreSegment == null)
return ;
System.Diagnostics.Debug.Assert(docStoreSegment != null);
// If we hit an exception while init'ing the term
// vector output files, we must abort this segment
// because those files will be in an unknown
// state:
tvx = docWriter.directory.CreateOutput(docStoreSegment + "." + IndexFileNames.VECTORS_INDEX_EXTENSION);
tvd = docWriter.directory.CreateOutput(docStoreSegment + "." + IndexFileNames.VECTORS_DOCUMENTS_EXTENSION);
tvf = docWriter.directory.CreateOutput(docStoreSegment + "." + IndexFileNames.VECTORS_FIELDS_EXTENSION);
tvx.WriteInt(TermVectorsReader.FORMAT_CURRENT);
tvd.WriteInt(TermVectorsReader.FORMAT_CURRENT);
tvf.WriteInt(TermVectorsReader.FORMAT_CURRENT);
docWriter.AddOpenFile(docStoreSegment + "." + IndexFileNames.VECTORS_INDEX_EXTENSION);
docWriter.AddOpenFile(docStoreSegment + "." + IndexFileNames.VECTORS_FIELDS_EXTENSION);
docWriter.AddOpenFile(docStoreSegment + "." + IndexFileNames.VECTORS_DOCUMENTS_EXTENSION);
lastDocID = 0;
}
}
}