I am using the Geometry Function Filter for the styles used for
rendering FeatureTypes of type Geometry because I want polygons to be
rendered as polygons and lines as lines and so on.
The problem I'm encountering is that when streaming renderer is
making the request to the Datastore it sends those filters as
well... In the case of WFS the WFS encodes the filters as xml (See
request attachment). At a glance the request looks ok but geoserver
throws an exception, I assume it can't handle the functional
expression.
{\rtf1\mac\ansicpg10000\cocoartf824\cocoasubrtf350
{\fonttbl\f0\fswiss\fcharset77 Helvetica;}
{\colortbl;\red255\green255\blue255;}
\margl1440\margr1440\vieww9000\viewh8400\viewkind0
\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\ql\qnatural\pardirnatural
\f0\fs24 \cf0 \
------------XML POST END-----------\
115549 [INFO] org.vfny.geoserver.servlets.AbstractService - Had an undefined error: null\
115551 [FINE] org.vfny.geoserver.ServiceException - java.lang.NullPointerException\
115554 [WARNING] org.vfny.geoserver.ServiceException - encountered error: java.lang.NullPointerException\
StackTrace: java.lang.NullPointerException\
at org.geotools.filter.ExpressionSAXParser.end(ExpressionSAXParser.java:205)\
at org.geotools.filter.ExpressionSAXParser.end(ExpressionSAXParser.java:162)\
at org.geotools.filter.FilterFilter.endElement(FilterFilter.java:314)\
at org.geotools.gml.GMLFilterGeometry.endElement(GMLFilterGeometry.java:203)\
at org.geotools.gml.GMLFilterDocument.endElement(GMLFilterDocument.java:286)\
at org.xml.sax.helpers.ParserAdapter.endElement(ParserAdapter.java:626)\
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)\
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)\
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)\
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)\
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)\
at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)\
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)\
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)\
at org.xml.sax.helpers.ParserAdapter.parse(ParserAdapter.java:405)\
at org.vfny.geoserver.wfs.requests.readers.GetFeatureXmlReader.read(GetFeatureXmlReader.java:72)\
at org.vfny.geoserver.servlets.AbstractService.doPost(AbstractService.java:375)\
at org.vfny.geoserver.wfs.servlets.WfsDispatcher.doResponse(WfsDispatcher.java:286)\
at org.vfny.geoserver.wfs.servlets.WfsDispatcher.doPost(WfsDispatcher.java:175)\
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)\
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)\
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)\
at org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:342)\
at org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:122)\
at org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)\
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:286)\
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)\
at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)\
at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)\
at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)\
at org.mortbay.http.HttpServer.service(HttpServer.java:879)\
at org.mortbay.http.HttpConnection.service(HttpConnection.java:790)\
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:961)\
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:807)\
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:197)\
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:276)\
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:511)\
\
115558 [FINE] org.vfny.geoserver.ServiceException - return wfs exception is <?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/schemas//wfs/1.0.0/OGC-exception.xsd";>\
<ServiceException>\
java.lang.NullPointerException </ServiceException>\
</ServiceExceptionReport>\
org.vfny.geoserver.wfs.WfsException: java.lang.NullPointerException\
at org.vfny.geoserver.wfs.WfsExceptionHandler.newServiceException(WfsExceptionHandler.java:65)\
at org.vfny.geoserver.servlets.AbstractService.sendError(AbstractService.java:749)\
at org.vfny.geoserver.servlets.AbstractService.doPost(AbstractService.java:382)\
at org.vfny.geoserver.wfs.servlets.WfsDispatcher.doResponse(WfsDispatcher.java:286)\
at org.vfny.geoserver.wfs.servlets.WfsDispatcher.doPost(WfsDispatcher.java:175)\
at javax.servlet.http.HttpServlet.service(HttpServlet.java:760)\
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)\
at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:358)\
at org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:342)\
at org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:122)\
at org.mortbay.jetty.servlet.WebApplicationHandler$Chain.doFilter(WebApplicationHandler.java:334)\
at org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:286)\
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:567)\
at org.mortbay.http.HttpContext.handle(HttpContext.java:1807)\
at org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:525)\
at org.mortbay.http.HttpContext.handle(HttpContext.java:1757)\
at org.mortbay.http.HttpServer.service(HttpServer.java:879)\
at org.mortbay.http.HttpConnection.service(HttpConnection.java:790)\
at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:961)\
at org.mortbay.http.HttpConnection.handle(HttpConnection.java:807)\
at org.mortbay.http.SocketListener.handleConnection(SocketListener.java:197)\
at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:276)\
at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:511)\
Caused by: java.lang.NullPointerException\
at org.geotools.filter.ExpressionSAXParser.end(ExpressionSAXParser.java:205)\
at org.geotools.filter.ExpressionSAXParser.end(ExpressionSAXParser.java:162)\
at org.geotools.filter.FilterFilter.endElement(FilterFilter.java:314)\
at org.geotools.gml.GMLFilterGeometry.endElement(GMLFilterGeometry.java:203)\
at org.geotools.gml.GMLFilterDocument.endElement(GMLFilterDocument.java:286)\
at org.xml.sax.helpers.ParserAdapter.endElement(ParserAdapter.java:626)\
at org.apache.xerces.parsers.AbstractSAXParser.endElement(Unknown Source)\
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)\
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source)\
at org.apache.xerces.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)\
at org.apache.xerces.parsers.XML11Configuration.parse(Unknown Source)\
at org.apache.xerces.parsers.DTDConfiguration.parse(Unknown Source)\
at org.apache.xerces.parsers.XMLParser.parse(Unknown Source)\
at org.apache.xerces.parsers.AbstractSAXParser.parse(Unknown Source)\
at org.xml.sax.helpers.ParserAdapter.parse(ParserAdapter.java:405)\
at org.vfny.geoserver.wfs.requests.readers.GetFeatureXmlReader.read(GetFeatureXmlReader.java:72)\
at org.vfny.geoserver.servlets.AbstractService.doPost(AbstractService.java:375)\
... 20 more\
}{\rtf1\mac\ansicpg10000\cocoartf824\cocoasubrtf350
{\fonttbl\f0\fswiss\fcharset77 Helvetica;}
{\colortbl;\red255\green255\blue255;}
\margl1440\margr1440\vieww9000\viewh8400\viewkind0
\pard\tx566\tx1133\tx1700\tx2267\tx2834\tx3401\tx3968\tx4535\tx5102\tx5669\tx6236\tx6803\ql\qnatural\pardirnatural
\f0\fs24 \cf0 <?xml version="1.0" encoding="UTF-8"?>\
<GetFeature xmlns="http://www.opengis.net/wfs"; xmlns:gml="http://www.opengis.net/gml"; xmlns:ogc="http://www.opengis.net/ogc"; version="1.0.0" service="WFS" outputFormat="GML2"><Query handle="liteRenderer" typeName="topp:bc_2m_border"><ogc:PropertyName>the_geom</ogc:PropertyName>\
<ogc:Filter><ogc:And><ogc:Intersects><ogc:PropertyName>the_geom</ogc:PropertyName>\
<gml:Polygon><gml:outerBoundaryIs><gml:LinearRing><gml:coordinates decimal="." cs="," ts=" ">-131.2635599006688,54.32918719859952 -131.2635599006688,54.68727779419495 -130.67376362557044,54.68727779419495 -130.67376362557044,54.32918719859952 -131.2635599006688,54.32918719859952</gml:coordinates>\
</gml:LinearRing>\
</gml:outerBoundaryIs>\
</gml:Polygon>\
</ogc:Intersects>\
<ogc:And><ogc:BBOX><ogc:PropertyName>the_geom</ogc:PropertyName>\
<gml:Box><gml:coordinates decimal="." cs="," ts=" ">-139.05729639304,48.2975677529953 -114.054147159406,60.0027160486083</gml:coordinates>\
</gml:Box>\
</ogc:BBOX>\
<ogc:Or><ogc:Or><ogc:Or><ogc:Or><ogc:Or><ogc:Or><ogc:Or><ogc:PropertyIsEqualTo><ogc:Function name="geometryType"><ogc:PropertyName>the_geom</ogc:PropertyName>\
</ogc:Function>\
<ogc:Literal>Point</ogc:Literal>\
</ogc:PropertyIsEqualTo>\
<ogc:PropertyIsEqualTo><ogc:Function name="geometryType"><ogc:PropertyName>the_geom</ogc:PropertyName>\
</ogc:Function>\
<ogc:Literal>Point</ogc:Literal>\
</ogc:PropertyIsEqualTo>\
</ogc:Or>\
<ogc:PropertyIsEqualTo><ogc:Function name="geometryType"><ogc:PropertyName>the_geom</ogc:PropertyName>\
</ogc:Function>\
<ogc:Literal>MultiPoint</ogc:Literal>\
</ogc:PropertyIsEqualTo>\
</ogc:Or>\
<ogc:PropertyIsEqualTo><ogc:Function name="geometryType"><ogc:PropertyName>the_geom</ogc:PropertyName>\
</ogc:Function>\
<ogc:Literal>LineString</ogc:Literal>\
</ogc:PropertyIsEqualTo>\
</ogc:Or>\
<ogc:PropertyIsEqualTo><ogc:Function name="geometryType"><ogc:PropertyName>the_geom</ogc:PropertyName>\
</ogc:Function>\
<ogc:Literal>LinearRing</ogc:Literal>\
</ogc:PropertyIsEqualTo>\
</ogc:Or>\
<ogc:PropertyIsEqualTo><ogc:Function name="geometryType"><ogc:PropertyName>the_geom</ogc:PropertyName>\
</ogc:Function>\
<ogc:Literal>MultiLineString</ogc:Literal>\
</ogc:PropertyIsEqualTo>\
</ogc:Or>\
<ogc:PropertyIsEqualTo><ogc:Function name="geometryType"><ogc:PropertyName>the_geom</ogc:PropertyName>\
</ogc:Function>\
<ogc:Literal>Polygon</ogc:Literal>\
</ogc:PropertyIsEqualTo>\
</ogc:Or>\
<ogc:PropertyIsEqualTo><ogc:Function name="geometryType"><ogc:PropertyName>the_geom</ogc:PropertyName>\
</ogc:Function>\
<ogc:Literal>MultiPolygon</ogc:Literal>\
</ogc:PropertyIsEqualTo>\
</ogc:Or>\
</ogc:And>\
</ogc:And>\
</ogc:Filter>\
</Query>\
</GetFeature>\
}
Also Postgis throws exceptions. So basically the Functional filters
are made useless by because all the datastores blow up when they are
passed one of them.
What should be done?
1. We could make Streaming renderer not pass functional filters on
to the datastore. (this would be a stop gap so things will start
working again)
2. We could visit each datastore and make sure that each one will
either ignore the filters and process them on the client side.
Jesse
