hmm, I though GeoTools already inspected the CPG sidecar file; as of
26.x, see https://github.com/geotools/geotools/pull/3405
Have you set the `tryCPGFile` value to to true on the store?
-M
Op 15-09-2023 om 09:56 schreef Andrea Aime:
That sounds great, but at the same time I'm a bit confused. The ESRI
specification
<https://desktop.arcgis.com/en/arcmap/10.3/manage-data/shapefiles/shapefile-file-extensions.htm> claims that the file
contains a "codepage <https://en.wikipedia.org/wiki/Code_page>", while
Java needs a Charset <https://en.wikipedia.org/wiki/Code_page>.
And yet, if I look at the cpg files I have locally, the contents are
either UTF-8 or Windows-1251,
so indeed, charsets.
Can you shed some light on this?
Cheers
Andrea
On Thu, Sep 14, 2023 at 9:46 PM Burkhard Strauss
<servi...@strauss.eng.br <mailto:servi...@strauss.eng.br>> wrote:
Some providers of ESRI Shapefile data provide an additional *.cpg-file
containing the character set name for string-fields in the *.dbf-file.
One such provider is HERE/NavStreets street map data.
Currently the API-user has to specify a Charset to the
ShapefileDataStoreFactory to ensure properly read string values. The
application has to ask the application-user to look up the Charset in
the *.cpg-file and copy or type the name. That's rather awkward.
I prepared a solution which adds 15 lines to ShapefileDataStoreFactory
plus a unit-test and test-data. If a file named <my_shapefile>.cpg is
present beside <my_shapefile>.dbf and the other files, and the Charset
can be determined from the file without error, a possibly present
factory parameter is ignored and overridden by the Charset found in the
file.
What do you think?
Regards
Burkhard
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