[Mapserver-users] (no subject)

Jeff McKenna jmckenna at dmsolutions.ca
Thu Feb 12 14:50:28 EST 2004


Hello,

I am trying to view a WFS layer in MapServer from a server that is publishing their data
using GeoServer (and they are storing their data in Oracle).  When I try their GetFeature
request in a browser valid GML is returned
(http://aadc-maps.aad.gov.au/geoserver/wfs?VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=topp:ICEBERG_PY).
 I have verified that the GML is valid with the ogrinfo utility, as well as converting the
GML to a shapefile using the OGR2OGR utility...it looks good.  But when I try to access
the layer with MapServer I get a lovely MapServer error:
[MapServer Error]: msWFSLayerWhichShapes(): WFS request produced unexpected output (junk?)
for layer aad_wfs

In my IMAGEPATH directory the GML file that is produced looks like this:

<?xml version="1.0" ?>
<ServiceExceptionReport
   version="1.2.0"
   xmlns="http://www.opengis.net/ogc"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xsi:schemaLocation="http://www.opengis.net/ogc
http://localhost:8080/geoserver/data/capabilities/wfs/1.0.0/OGC-exception.xsd">
   <ServiceException>
      problem with FeatureResults: org.geotools.data.DataSourceException: Could not count 
	at org.geotools.data.jdbc.JDBCFeatureSource.count(JDBCFeatureSource.java:402)
	at org.geotools.data.jdbc.JDBCFeatureSource$1.getCount(JDBCFeatureSource.java:218)
	at org.vfny.geoserver.responses.wfs.FeatureResponse.execute(FeatureResponse.java:307)
	at org.vfny.geoserver.responses.wfs.FeatureResponse.execute(FeatureResponse.java:193)
	at org.vfny.geoserver.servlets.AbstractService.doService(AbstractService.java:295)
	at org.vfny.geoserver.servlets.AbstractService.doGet(AbstractService.java:202)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at org.vfny.geoserver.servlets.wfs.WfsDispatcher.doResponse(WfsDispatcher.java:172)
	at org.vfny.geoserver.servlets.wfs.WfsDispatcher.doGet(WfsDispatcher.java:123)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
	at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
	at jrun.servlet.ServletInvoker.invoke(ServletInvoker.java:91)
	at jrun.servlet.JRunInvokerChain.invokeNext(JRunInvokerChain.java:42)
	at jrun.servlet.JRunRequestDispatcher.invoke(JRunRequestDispatcher.java:252)
	at jrun.servlet.ServletEngineService.dispatch(ServletEngineService.java:527)
	at jrun.servlet.http.WebService.invokeRunnable(WebService.java:168)
	at jrunx.scheduler.ThreadPool$ThreadThrottle.invokeRunnable(ThreadPool.java:451)
	at jrunx.scheduler.WorkerThread.run(WorkerThread.java:66)
Caused by: java.sql.SQLException: ORA-00921: unexpected end of SQL command

	at oracle.jdbc.dbaccess.DBError.throwSqlException(DBError.java:134)
	at oracle.jdbc.ttc7.TTIoer.processError(TTIoer.java:289)
	at oracle.jdbc.ttc7.Oall7.receive(Oall7.java:579)
	at oracle.jdbc.ttc7.TTC7Protocol.doOall7(TTC7Protocol.java:1894)
	at oracle.jdbc.ttc7.TTC7Protocol.parseExecuteDescribe(TTC7Protocol.java:831)
	at oracle.jdbc.driver.OracleStatement.doExecuteQuery(OracleStatement.java:2496)
	at oracle.jdbc.driver.OracleStatement.doExecuteWithTimeout(OracleStatement.java:2840)
	at oracle.jdbc.driver.OracleStatement.executeQuery(OracleStatement.java:623)
	at org.geotools.data.jdbc.JDBCFeatureSource.count(JDBCFeatureSource.java:391)
	... 18 more
   </ServiceException>
</ServiceExceptionReport>

The mapfile that I'm using is as follows:


NAME AAD_WFS
STATUS ON
SIZE 400 300
SYMBOLSET ./etc/symbols.sym
EXTENT 60 -90 160 0
UNITS DD
#SHAPEPATH "C:/GCRC/data/antarctica/scale0/st17_20"
IMAGECOLOR 255 255 255
FONTSET ./etc/fonts.txt

WEB
  IMAGEPATH "c:/tmp/ms_tmp/" 
  IMAGEURL "c:/ms_tmp/"
  METADATA
  END
  LOG "c:/GCRC/www/add-demo/htdocs/ms_error.txt"
END

PROJECTION
  "init=epsg:4326"
END


LAYER
    NAME "aad_wfs"
    TYPE POLYGON
    CONNECTIONTYPE WFS
    CONNECTION
"http://aadc-maps.aad.gov.au/geoserver/wfs?VERSION=1.0.0&REQUEST=GetFeature&TYPENAME=topp:ICEBERG_PY"
    PROJECTION
      "init=epsg:8307"
    END
    METADATA
      "wfs_connectiontimeout" "60"              
      "wfs_latlonboundingbox" "60 -90 160 0"
    END
    STATUS ON
    DEBUG TRUE
    CLASS
      NAME "test"
      COLOR 255 0 0
    END
END

The WFS server in question is actually the Australian Antarctic Division (AAD), and we are
trying to make their data available to other partners around the world.  Is it something
on their side that is causing MapServer to blow up?? 
>From a GetCapabilities request we can see that the data is in 8307 EPSG, which is not
included in the standard EPSG file....and I think that 8307 is the same as generic
lat/long....so I added an 8307 code in my EPSG file with the same params as 4326 (is this
the problem???).

More questions: from comparing the GML returned in the browser with other valid GML that
MapServer CAN display we've noticed that the AAD server GML states <gml:Box
srsName="http://www.opengis.net/gml/srs/epsg.xml#8307"> whereas others say <gml:Box
srsName="EPSG:9810">...is MapServer having a problem with that URL????

Any help is greatly appreciated.

jeff



---
Jeff McKenna
Research Assistant
Geomatics and Cartographic Research Centre
Carleton University
Ottawa, ON
Canada





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