//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in .NET:
//ORIGINAL LINE: @Override public int nextPosition() throws java.io.IOException
public override int nextPosition()
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int token = postingInput.readVInt();
int token = postingInput.readVInt();
pos += (int)((uint)token >> 1);
if (storeOffsets)
{
startOffset_Renamed = endOffset_Renamed + postingInput.readVInt();
endOffset_Renamed = startOffset_Renamed + postingInput.readVInt();
}
if ((token & 1) != 0)
{
payload.offset = 0;
payload.length = postingInput.readVInt();
if (payload.length > payload.bytes.length)
{
payload.bytes = new sbyte[ArrayUtil.oversize(payload.length, 1)];
}
postingInput.readBytes(payload.bytes, 0, payload.length);
}
else
{
payload.length = 0;
}
return(pos);
}
public override void lookupOrd(long ord, BytesRef result)
{
try
{
if (ord < 0 || ord >= field.numValues)
{
throw new System.IndexOutOfRangeException("ord must be 0 .. " + (field.numValues - 1) + "; got " + ord);
}
@in.seek(field.dataStartFilePointer + ord * (9 + field.pattern.Length + field.maxLength));
SimpleTextUtil.ReadLine(@in, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, LENGTH), "got " + scratch.utf8ToString() + " in=" + @in);
int len;
try
{
len = (int)decoder.parse(new string(scratch.bytes, scratch.offset + LENGTH.length, scratch.length - LENGTH.length, StandardCharsets.UTF_8));
}
catch (ParseException pe)
{
CorruptIndexException e = new CorruptIndexException("failed to parse int length (resource=" + @in + ")");
e.initCause(pe);
throw e;
}
result.bytes = new sbyte[len];
result.offset = 0;
result.length = len;
@in.readBytes(result.bytes, 0, len);
}
catch (IOException ioe)
{
throw new Exception(ioe);
}
}
public override bool get(int index)
{
try
{
@in.seek(field.dataStartFilePointer + (9 + field.pattern.Length + field.maxLength + 2) * index);
SimpleTextUtil.ReadLine(@in, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, LENGTH));
int len;
try
{
len = (int)decoder.parse(new string(scratch.bytes, scratch.offset + LENGTH.length, scratch.length - LENGTH.length, StandardCharsets.UTF_8));
}
catch (ParseException pe)
{
CorruptIndexException e = new CorruptIndexException("failed to parse int length (resource=" + @in + ")");
e.initCause(pe);
throw e;
}
// skip past bytes
sbyte[] bytes = new sbyte[len];
@in.readBytes(bytes, 0, len);
SimpleTextUtil.ReadLine(@in, scratch); // newline
SimpleTextUtil.ReadLine(@in, scratch); // 'T' or 'F'
return(scratch.bytes[scratch.offset] == (sbyte)'T');
}
catch (IOException ioe)
{
throw new Exception(ioe);
}
}
public override void get(int docID, BytesRef result)
{
try
{
if (docID < 0 || docID >= outerInstance.maxDoc)
{
throw new System.IndexOutOfRangeException("docID must be 0 .. " + (outerInstance.maxDoc - 1) + "; got " + docID);
}
@in.seek(field.dataStartFilePointer + (9 + field.pattern.Length + field.maxLength + 2) * docID);
SimpleTextUtil.ReadLine(@in, scratch);
Debug.Assert(StringHelper.StartsWith(scratch, LENGTH));
int len;
try
{
len = (int)decoder.parse(new string(scratch.bytes, scratch.offset + LENGTH.length, scratch.length - LENGTH.length, StandardCharsets.UTF_8));
}
catch (ParseException pe)
{
CorruptIndexException e = new CorruptIndexException("failed to parse int length (resource=" + @in + ")");
e.initCause(pe);
throw e;
}
result.bytes = new sbyte[len];
result.offset = 0;
result.length = len;
@in.readBytes(result.bytes, 0, len);
}
catch (IOException ioe)
{
throw new Exception(ioe);
}
}
public override void readBytes(byte[] b, int offset, int len)
{
_indexInput.readBytes(b, offset, len);
}
public static void Main(string[] args)
{
string filename = null;
bool extract = false;
string dirImpl = null;
int j = 0;
while (j < args.Length)
{
string arg = args[j];
if ("-extract".Equals(arg))
{
extract = true;
}
else if ("-dir-impl".Equals(arg))
{
if (j == args.Length - 1)
{
Console.WriteLine("ERROR: missing value for -dir-impl option");
Environment.Exit(1);
}
j++;
dirImpl = args[j];
}
else if (filename == null)
{
filename = arg;
}
j++;
}
if (filename == null)
{
Console.WriteLine("Usage: org.apache.lucene.index.CompoundFileExtractor [-extract] [-dir-impl X] <cfsfile>");
return;
}
Directory dir = null;
CompoundFileDirectory cfr = null;
IOContext context = IOContext.READ;
try
{
File file = new File(filename);
string dirname = file.AbsoluteFile.Parent;
filename = file.Name;
if (dirImpl == null)
{
dir = FSDirectory.open(new File(dirname));
}
else
{
dir = CommandLineUtil.newFSDirectory(dirImpl, new File(dirname));
}
cfr = new CompoundFileDirectory(dir, filename, IOContext.DEFAULT, false);
string[] files = cfr.listAll();
ArrayUtil.timSort(files); // sort the array of filename so that the output is more readable
for (int i = 0; i < files.Length; ++i)
{
long len = cfr.fileLength(files[i]);
if (extract)
{
Console.WriteLine("extract " + files[i] + " with " + len + " bytes to local directory...");
IndexInput ii = cfr.openInput(files[i], context);
FileOutputStream f = new FileOutputStream(files[i]);
// read and write with a small buffer, which is more effective than reading byte by byte
sbyte[] buffer = new sbyte[1024];
int chunk = buffer.Length;
while (len > 0)
{
//JAVA TO C# CONVERTER WARNING: The original Java variable was marked 'final':
//ORIGINAL LINE: final int bufLen = (int) Math.min(chunk, len);
int bufLen = (int)Math.Min(chunk, len);
ii.readBytes(buffer, 0, bufLen);
f.write(buffer, 0, bufLen);
len -= bufLen;
}
f.close();
ii.close();
}
else
{
Console.WriteLine(files[i] + ": " + len + " bytes");
}
}
}
catch (IOException ioe)
{
Console.WriteLine(ioe.ToString());
Console.Write(ioe.StackTrace);
}
finally
{
try
{
if (dir != null)
{
dir.close();
}
if (cfr != null)
{
cfr.close();
}
}
catch (IOException ioe)
{
Console.WriteLine(ioe.ToString());
Console.Write(ioe.StackTrace);
}
}
}
