Re: [OpenMap Users] Fix for nulls in column names in ESRI Tiger dbf files.

From: Don Dietrick <dietrick_at_bbn.com>
Date: Fri, 12 Aug 2005 10:23:46 -0400

Hi Cary,

Thanks for the fix, it'll be in the next release.

- Don

On Aug 12, 2005, at 9:33 AM, Cary O'Brien wrote:

> We had a problem with null characters in the DBF data that came
> with the US Census tiger databases we downloaded from ESRI.
> Here is a fix in DbfInputStream.readFieldDescription()
>
> -- cary
>
> ---------- com/bbn/openmap/dataAccess/shape/input/
> DbfInputStream.java ------------
>
> /**
> * Initializes arrays that hold column names, column types,
> character
> * lengths, and decimal counts, then populates them
> */
> private void readFieldDescripters() throws IOException {
> _columnNames = new String[_columnCount];
> _types = new byte[_columnCount];
> _lengths = new int[_columnCount];
> _decimalCounts = new byte[_columnCount];
> for (int n=0; n<=_columnCount-1; n++) {
> _columnNames[n] = _leis.readString(11);
> //
> // Some TIGER dbf files from ESRI have nulls
> // in the column names. Delete them.
> //
> int ix = _columnNames[n].indexOf((char)0);
> if(ix > 0) {
> _columnNames[n] = _columnNames[n].substring(0,ix);
> }
> _types[n] = (byte)_leis.readByte();
> _leis.skipBytes(4);
> _lengths[n] = _leis.readUnsignedByte();
> _decimalCounts[n] = _leis.readByte();
> _leis.skipBytes(14);
> }
> }
>
> --
> [To unsubscribe to this list send an email to "majdart_at_bbn.com"
> with the following text in the BODY of the message "unsubscribe
> openmap-users"]
>



=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Don Dietrick, dietrick_at_bbn.com
BBN Technologies, Cambridge, MA
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=


--
[To unsubscribe to this list send an email to "majdart_at_bbn.com"
with the following text in the BODY of the message "unsubscribe openmap-users"]
Received on Fri Aug 12 2005 - 10:24:23 EDT

This archive was generated by hypermail 2.3.0 : Tue Mar 28 2017 - 23:25:07 EDT