protected override MonotonicBlockPackedReader GetAddressInstance(IndexInput data, FieldInfo field,
BinaryEntry bytes)
{
data.Seek(bytes.AddressesOffset);
return new MonotonicBlockPackedReader((IndexInput)data.Clone(), bytes.PackedIntsVersion, bytes.BlockSize, bytes.Count,
true);
}
protected override MonotonicBlockPackedReader GetOrdIndexInstance(IndexInput data, FieldInfo field,
NumericEntry entry)
{
data.Seek(entry.Offset);
return new MonotonicBlockPackedReader((IndexInput)data.Clone(), entry.PackedIntsVersion, entry.BlockSize, entry.Count,
true);
}
public override System.Object Clone(IState state)
{
var clone = (CSIndexInput)base.Clone(state);
clone.base_Renamed = (IndexInput)base_Renamed.Clone(state);
clone.fileOffset = fileOffset;
clone.length = length;
return(clone);
}
// Used only by clone
private FieldsReader(FieldInfos fieldInfos, int numTotalDocs, int size, int format, int formatSize, int docStoreOffset, IndexInput cloneableFieldsStream, IndexInput cloneableIndexStream, IState state)
{
this.fieldInfos = fieldInfos;
this.numTotalDocs = numTotalDocs;
this.size = size;
this.format = format;
this.formatSize = formatSize;
this.docStoreOffset = docStoreOffset;
this.cloneableFieldsStream = cloneableFieldsStream;
this.cloneableIndexStream = cloneableIndexStream;
fieldsStream = (IndexInput)cloneableFieldsStream.Clone(state);
indexStream = (IndexInput)cloneableIndexStream.Clone(state);
}
public virtual System.Object Clone(IState state)
{
TermVectorsReader clone = (TermVectorsReader)base.MemberwiseClone();
// These are null when a TermVectorsReader was created
// on a segment that did not have term vectors saved
if (tvx != null && tvd != null && tvf != null)
{
clone.tvx = (IndexInput)tvx.Clone(state);
clone.tvd = (IndexInput)tvd.Clone(state);
clone.tvf = (IndexInput)tvf.Clone(state);
}
return(clone);
}
public virtual void TestCloneSafety()
{
MMapDirectory mmapDir = new MMapDirectory(CreateTempDir("testCloneSafety"));
IndexOutput io = mmapDir.CreateOutput("bytes", NewIOContext(Random()));
io.WriteVInt(5);
io.Dispose();
IndexInput one = mmapDir.OpenInput("bytes", IOContext.DEFAULT);
IndexInput two = (IndexInput)one.Clone();
IndexInput three = (IndexInput)two.Clone(); // clone of clone
one.Dispose();
try
{
one.ReadVInt();
Assert.Fail("Must throw AlreadyClosedException");
}
catch (AlreadyClosedException ignore)
{
// pass
}
try
{
two.ReadVInt();
Assert.Fail("Must throw AlreadyClosedException");
}
catch (AlreadyClosedException ignore)
{
// pass
}
try
{
three.ReadVInt();
Assert.Fail("Must throw AlreadyClosedException");
}
catch (AlreadyClosedException ignore)
{
// pass
}
two.Dispose();
three.Dispose();
// test double close of master:
one.Dispose();
mmapDir.Dispose();
}
public System.Object Clone(IState state)
{
SegmentTermEnum clone = null;
try
{
clone = (SegmentTermEnum)base.MemberwiseClone();
}
catch (System.Exception)
{
}
clone.input = (IndexInput)input.Clone(state);
clone.termInfo = new TermInfo(termInfo);
clone.termBuffer = (TermBuffer)termBuffer.Clone();
clone.prevBuffer = (TermBuffer)prevBuffer.Clone();
clone.scanBuffer = new TermBuffer();
return(clone);
}
/// <summary>Optimized implementation. </summary>
public virtual bool SkipTo(int target, IState state)
{
if (df >= skipInterval)
{
// optimized case
if (skipListReader == null)
{
skipListReader = new DefaultSkipListReader((IndexInput)freqStream.Clone(state), maxSkipLevels, skipInterval); // lazily clone
}
if (!haveSkipped)
{
// lazily initialize skip stream
skipListReader.Init(skipPointer, freqBasePointer, proxBasePointer, df, currentFieldStoresPayloads);
haveSkipped = true;
}
int newCount = skipListReader.SkipTo(target, state);
if (newCount > count)
{
freqStream.Seek(skipListReader.GetFreqPointer(), state);
SkipProx(skipListReader.GetProxPointer(), skipListReader.GetPayloadLength());
doc = skipListReader.GetDoc();
count = newCount;
}
}
// done skipping, now just scan
do
{
if (!Next(state))
{
return(false);
}
}while (target > doc);
return(true);
}
public override IndexInput OpenFullSlice()
{
return((IndexInput)@base.Clone());
}
public virtual void TestCloneSliceSafety()
{
MMapDirectory mmapDir = new MMapDirectory(CreateTempDir("testCloneSliceSafety"));
IndexOutput io = mmapDir.CreateOutput("bytes", NewIOContext(Random()));
io.WriteInt32(1);
io.WriteInt32(2);
io.Dispose();
IndexInputSlicer slicer = mmapDir.CreateSlicer("bytes", NewIOContext(Random()));
IndexInput one = slicer.OpenSlice("first int", 0, 4);
IndexInput two = slicer.OpenSlice("second int", 4, 4);
IndexInput three = (IndexInput)one.Clone(); // clone of clone
IndexInput four = (IndexInput)two.Clone(); // clone of clone
slicer.Dispose();
try
{
one.ReadInt32();
Assert.Fail("Must throw ObjectDisposedException");
}
#pragma warning disable 168
catch (ObjectDisposedException ignore)
#pragma warning restore 168
{
// pass
}
try
{
two.ReadInt32();
Assert.Fail("Must throw ObjectDisposedException");
}
#pragma warning disable 168
catch (ObjectDisposedException ignore)
#pragma warning restore 168
{
// pass
}
try
{
three.ReadInt32();
Assert.Fail("Must throw ObjectDisposedException");
}
#pragma warning disable 168
catch (ObjectDisposedException ignore)
#pragma warning restore 168
{
// pass
}
try
{
four.ReadInt32();
Assert.Fail("Must throw ObjectDisposedException");
}
#pragma warning disable 168
catch (ObjectDisposedException ignore)
#pragma warning restore 168
{
// pass
}
one.Dispose();
two.Dispose();
three.Dispose();
four.Dispose();
// test double-close of slicer:
slicer.Dispose();
mmapDir.Dispose();
}
internal CSIndexInput(IndexInput @base, long fileOffset, long length, int readBufferSize, IState state) : base(readBufferSize)
{
this.base_Renamed = (IndexInput)@base.Clone(state);
this.fileOffset = fileOffset;
this.length = length;
}
public override System.Object Clone(IState state)
{
return(new FaultyIndexInput((IndexInput)delegate_Renamed.Clone(null)));
}
/// <summary>
/// Clones the provided input, reads all bytes from the file, and calls <seealso cref="#checkFooter"/>
/// <p>
/// Note that this method may be slow, as it must process the entire file.
/// If you just need to extract the checksum value, call <seealso cref="#retrieveChecksum"/>.
/// </summary>
public static long ChecksumEntireFile(IndexInput input)
{
IndexInput clone = (IndexInput)input.Clone();
clone.Seek(0);
ChecksumIndexInput @in = new BufferedChecksumIndexInput(clone);
Debug.Assert(@in.FilePointer == 0);
@in.Seek(@in.Length() - FooterLength());
return CheckFooter(@in);
}
internal SlicedIndexInput(string sliceDescription, IndexInput @base, long fileOffset, long length, int readBufferSize)
: base("SlicedIndexInput(" + sliceDescription + " in " + @base + " slice=" + fileOffset + ":" + (fileOffset + length) + ")", readBufferSize)
{
this.@base = (IndexInput)@base.Clone();
this.FileOffset = fileOffset;
this.Length_Renamed = length;
}
internal FieldsReader(Directory d, System.String segment, FieldInfos fn, int readBufferSize, int docStoreOffset, int size, IState state)
{
bool success = false;
isOriginal = true;
try
{
fieldInfos = fn;
cloneableFieldsStream = d.OpenInput(segment + "." + IndexFileNames.FIELDS_EXTENSION, readBufferSize, state);
cloneableIndexStream = d.OpenInput(segment + "." + IndexFileNames.FIELDS_INDEX_EXTENSION, readBufferSize, state);
// First version of fdx did not include a format
// header, but, the first int will always be 0 in that
// case
int firstInt = cloneableIndexStream.ReadInt(state);
format = firstInt == 0 ? 0 : firstInt;
if (format > FieldsWriter.FORMAT_CURRENT)
{
throw new CorruptIndexException("Incompatible format version: " + format + " expected " + FieldsWriter.FORMAT_CURRENT + " or lower");
}
formatSize = format > FieldsWriter.FORMAT ? 4 : 0;
if (format < FieldsWriter.FORMAT_VERSION_UTF8_LENGTH_IN_BYTES)
{
cloneableFieldsStream.SetModifiedUTF8StringsMode();
}
fieldsStream = (IndexInput)cloneableFieldsStream.Clone(state);
long indexSize = cloneableIndexStream.Length(state) - formatSize;
if (docStoreOffset != -1)
{
// We read only a slice out of this shared fields file
this.docStoreOffset = docStoreOffset;
this.size = size;
// Verify the file is long enough to hold all of our
// docs
System.Diagnostics.Debug.Assert(((int)(indexSize / 8)) >= size + this.docStoreOffset, "indexSize=" + indexSize + " size=" + size + " docStoreOffset=" + docStoreOffset);
}
else
{
this.docStoreOffset = 0;
this.size = (int)(indexSize >> 3);
}
indexStream = (IndexInput)cloneableIndexStream.Clone(state);
numTotalDocs = (int)(indexSize >> 3);
success = true;
}
finally
{
// With lock-less commits, it's entirely possible (and
// fine) to hit a FileNotFound exception above. In
// this case, we want to explicitly close any subset
// of things that were opened so that we don't have to
// wait for a GC to do so.
if (!success)
{
Dispose();
}
}
}
