Thanks..
On 4/20/07, Digy <[EMAIL PROTECTED]> wrote:
>
> Hi All,
>
> NumberTools class is different in Lucene(Java) and Lucene.Net.
> "RADIX" is 36 in lucene and 16 in Lucene.Net. Therefore Java-Index is
> not
> compatible with .NET index.
>
> I will propose a solution for this(I marked the changes as //DIGY
> *******).
>
> Best Regards,
> DIGY
>
>
> public class NumberTools
> {
>
> #region BASE36 OPS //DIGY ********** New
> static string digits = "0123456789abcdefghijklmnopqrstuvwxyz";
> static long[] powersOf36 =
> { 1L,
> 36L,
> 36L*36L,
> 36L*36L*36L,
> 36L*36L*36L*36L,
> 36L*36L*36L*36L*36L,
> 36L*36L*36L*36L*36L*36L,
> 36L*36L*36L*36L*36L*36L*36L,
> 36L*36L*36L*36L*36L*36L*36L*36L,
> 36L*36L*36L*36L*36L*36L*36L*36L*36L,
> 36L*36L*36L*36L*36L*36L*36L*36L*36L*36L,
> 36L*36L*36L*36L*36L*36L*36L*36L*36L*36L*36L,
> 36L*36L*36L*36L*36L*36L*36L*36L*36L*36L*36L*36L
> };
>
>
> public static string ToString(long lval)
> {
> int maxStrLen = powersOf36.Length;
> long curval = lval;
>
> char[] tb = new char[maxStrLen];
> int outpos = 0;
> for (int i = 0; i < maxStrLen; i++)
> {
> long pval = powersOf36[maxStrLen - i - 1];
> int pos = (int)(curval / pval);
> tb[outpos++] = digits.Substring(pos,
> 1).ToCharArray()[0];
> curval = curval % pval;
> }
> if (outpos == 0) tb[outpos++] = '0';
> return new string(tb, 0, outpos).TrimStart('0');
> }
>
> public static long ToLong(string t)
> {
> long ival = 0;
> char[] tb = t.ToCharArray();
> for (int i = 0; i < tb.Length; i++)
> {
> ival += powersOf36[i] * digits.IndexOf(tb[tb.Length - i
> -
> 1]);
> }
> return ival;
> }
> #endregion
>
>
>
> private const int RADIX = 36; //DIGY ********** Changed
>
> private const char NEGATIVE_PREFIX = '-';
>
> // NB: NEGATIVE_PREFIX must be < POSITIVE_PREFIX
> private const char POSITIVE_PREFIX = '0';
>
> //NB: this must be less than
> /// <summary> Equivalent to longToString(Long.MIN_VALUE
> )</summary>
> public static readonly System.String MIN_STRING_VALUE =
> NEGATIVE_PREFIX + "0000000000000";
>
> /// <summary> Equivalent to longToString( Long.MAX_VALUE
> )</summary>
> public static readonly System.String MAX_STRING_VALUE =
> POSITIVE_PREFIX + "1y2p0ij32e8e7";
>
> /// <summary> The length of (all) strings returned by [EMAIL
PROTECTED]
> #longToString}</summary>
> public static readonly int STR_SIZE = MIN_STRING_VALUE.Length;
>
> /// <summary> Converts a long to a String suitable for
> indexing.</summary>
> public static System.String LongToString(long l)
> {
>
> if (l == System.Int64.MinValue)
> {
> // special case, because long is not symetric around
> zero
> return MIN_STRING_VALUE;
> }
>
> System.Text.StringBuilder buf = new
> System.Text.StringBuilder(STR_SIZE);
>
> if (l < 0)
> {
> buf.Append(NEGATIVE_PREFIX);
> l = System.Int64.MaxValue + l + 1;
> }
> else
> {
> buf.Append(POSITIVE_PREFIX);
> }
> System.String num = ToString(l); //DIGY ********** Changed
>
> int padLen = STR_SIZE - num.Length - buf.Length;
> while (padLen-- > 0)
> {
> buf.Append('0');
> }
> buf.Append(num);
>
> return buf.ToString();
> }
>
> /// <summary> Converts a String that was returned by [EMAIL PROTECTED]
> #longToString} back to a
> /// long.
> ///
> /// </summary>
> /// <throws> IllegalArgumentException </throws>
> /// <summary> if the input is null
> /// </summary>
> /// <throws> NumberFormatException </throws>
> /// <summary> if the input does not parse (it was
> not a
> String returned by
> /// longToString()).
> /// </summary>
> public static long StringToLong(System.String str)
> {
> if (str == null)
> {
> throw new System.NullReferenceException("string cannot
> be
> null");
> }
> if (str.Length != STR_SIZE)
> {
> throw new System.FormatException("string is the wrong
> size");
> }
>
> if (str.Equals(MIN_STRING_VALUE))
> {
> return System.Int64.MinValue;
> }
>
> char prefix = str[0];
> long l = ToLong(str.Substring(1)); //DIGY ********** Changed
>
> if (prefix == POSITIVE_PREFIX)
> {
> // nop
> }
> else if (prefix == NEGATIVE_PREFIX)
> {
> l = l - System.Int64.MaxValue - 1;
> }
> else
> {
> throw new System.FormatException("string does not begin
> with
> the correct prefix");
> }
>
> return l;
> }
> }
>
> -----Original Message-----
> From: George Aroush [mailto: [EMAIL PROTECTED]
> Sent: Wednesday, April 18, 2007 4:14 AM
> To: [email protected]
> Subject: RE: Exception while search in Lucene.Net and Index prepared by
> LuceneJava
>
> Hi Laxmilal,
>
> I don't have the free cycles to look into this right now. However, now
> that
> you narrowed this down to one field, "CellNo", can you narrow it down
> even
> further to one document or does it not matter? Also, can you try
> Field.Store.NO instead of Field.Store.YES ?
>
> Regards,
>
> -- George
>
> > -----Original Message-----
> > From: Laxmilal Menaria [mailto:[EMAIL PROTECTED]
> > Sent: Monday, April 16, 2007 5:26 AM
> > To: [email protected]
> > Subject: Re: Exception while search in Lucene.Net and Index
> > prepared by LuceneJava
> >
> > I have reindex the same, and got exception while
> > reading..also posted sample java program for indexing and
> > vb.net for reading..
> >
> > Thanks
> > --LM
> >
> > On 4/15/07, Laxmilal Menaria <[EMAIL PROTECTED]> wrote:
> > >
> > >
> > >
> > > On 4/13/07, Laxmilal Menaria <[EMAIL PROTECTED]> wrote:
> > > >
> > > > JAVA CODE :
> > > >
> > > > import java.io.*;
> > > > import java.util.Date;
> > > >
> > > > import org.apache.lucene.analysis.standard.*;
> > > > import org.apache.lucene.document.*; import
> > > > org.apache.lucene.index.* ;
> > > >
> > > > public class Indexer {
> > > > public static void main(String[] args) {
> > > > try
> > > > {
> > > >
> > > > File indexDir = new File("C:/LuceneApp/Testindex");
> > > > long start = new Date().getTime();
> > > > int numIndexed = index(indexDir);
> > > > long end = new Date().getTime();
> > > > System.out.println("Indexing " + numIndexed +
> > " docs took "
> > > > + (end - start) + " milliseconds");
> > > >
> > > > }catch(Exception e)
> > > > {
> > > > System.out.println("Exception by
> > main=>"+e.toString());
> > > > }
> > > >
> > > > }
> > > > // open an index and start file directory traversal
> > > > public static int index(File indexDir) throws IOException
> > > > {
> > > > System.out.println("Entering into Index method");
> > > > IndexWriter writer = new IndexWriter(indexDir,new
> > > > StandardAnalyzer(), true);
> > > > writer.setUseCompoundFile(false);
> > > >
> > > > indexFile(writer);
> > > > int numIndexed = writer.docCount();
> > > > writer.optimize();
> > > > writer.close();
> > > > return numIndexed;
> > > >
> > > > }
> > > > private static void indexFile(IndexWriter writer)
> > > > {
> > > > try
> > > > {
> > > > Document doc = new Document();
> > > > doc.add(new Field("CellNo", NumberTools.longToString
> > > > (12345678),Field.Store.YES,Field.Index.TOKENIZED));
> > > > writer.addDocument(doc);
> > > >
> > > > doc = new Document();
> > > > doc.add(new Field("CellNo", NumberTools.longToString
> > > > (234569455),Field.Store.YES,Field.Index.TOKENIZED));
> > > > writer.addDocument(doc);
> > > >
> > > > doc = new Document();
> > > > doc.add(new Field("CellNo", NumberTools.longToString
> > > > (567895000),Field.Store.YES,Field.Index.TOKENIZED));
> > > > writer.addDocument(doc);
> > > >
> > > > doc = new Document();
> > > > doc.add(new Field("CellNo", NumberTools.longToString
> > > > (789511111),Field.Store.YES,Field.Index.TOKENIZED ));
> > > > writer.addDocument(doc);
> > > >
> > > > doc = new Document();
> > > > doc.add(new Field("CellNo", NumberTools.longToString
> > > > (455656448),Field.Store.YES,Field.Index.TOKENIZED));
> > > > writer.addDocument(doc);
> > > > }
> > > > catch(Exception e)
> > > > {
> > > > System.out.println("Exception =>"+ e.toString());
> > > > }
> > > >
> > > >
> > > > }
> > > > }
> > > >
> > > > VB.NET CODE:
> > > >
> > > > Dim objIndexReader As Lucene.Net.Index.IndexReader =
> > > > Lucene.Net.Index.IndexReader.Open("C:\LuceneApp\Testindex")
> > > > Dim sResults() As String
> > > > Dim iTotalDocs As Integer = objIndexReader.NumDocs
> > > > Dim iCounter As Integer
> > > > While iCounter < iTotalDocs
> > > > ReDim Preserve sResults(iCounter)
> > > > sResults(iCounter) =
> > > >
> > Lucene.Net.Documents.NumberTools.StringToLong(objIndexReader.Documen
> > > > t
> > > > (iCounter).Get("CellNo"))
> > > > iCounter += 1
> > > > End While
> > > >
> > > > On 4/13/07, Laxmilal Menaria < [EMAIL PROTECTED] > wrote:
> > > > >
> > > > > ok..thanks, I will post sample of both ..
> > > > >
> > > > > -LM
> > > > >
> > > > >
> > > > > On 4/13/07, George Aroush <[EMAIL PROTECTED] > wrote:
> > > > > >
> > > > > > Hi Laxmilal,
> > > > > >
> > > > > > Can you re-index with one field at a time and see which field
> > > > > > maybe the cause? I'm betting it's the one you are storing
> > > > > > NumberTools.StringToLong.
> > > > > >
> > > > > > Also, can you post the sample Java code?
> > > > > >
> > > > > > Thanks!
> > > > > >
> > > > > > -- George
> > > > > >
> > > > > > > -----Original Message-----
> > > > > > > From: Laxmilal Menaria [mailto: [EMAIL PROTECTED]
> > > > > > > Sent: Friday, April 13, 2007 7:09 AM
> > > > > > > To: [email protected]
> > > > > > > Subject: Exception while search in Lucene.Net and Index
> > > > > > > prepared by LuceneJava
> > > > > > >
> > > > > > > Hello everyone,
> > > > > > >
> > > > > > > I have created Index using MyJava program..but when I have
> > > > > > > search using .Net code, it gives exception
> > "Run-time exception
> > > > > > > thrown :
> > > > > > > System.FormatException- string is the wrong size "..
> > > > > > >
> > > > > > > MyIndexCollection have 3 Fileds: Name, Address and Cell No.
> > > > > > > and I am index Cell No as NumberTools.LongtoString,
> > and while
> > > > > > > reading convert to NumberTools.StringToLong, its working in
> > > > > > > java, but when created same with Lucene.net, it gives above
> > > > > > > exception..
> > > > > > >
> > > > > > > What is the problem? Please suggest me...
> > > > > > >
> > > > > > > My lucene version in both Java and .Net is 2.0.
> > > > > > >
> > > > > > > Thanks in advance,
> > > > > > > Laxmilal
> > > > > > >
> > > > > >
> > > > > >
> > > > >
> > > >
> > >
> >
>
>
