APOLLO & ECW/JP2 Discussions

[TMS]

Hi,

I am new at the community and have a question on Apollo Vector Services.

Is it possible to send more than one filter to the WFS?

I tried it with GET Requests and got the following Error.

"The filter can contain only one operator."

For GIS test: Add a Apollo WFS to GeoMedia (i have tested with Apollo2016 as well as Apollo2020), define a spatial filter and try to create an Attribute Query. I get an error in GeoMedia and the Message above is in Tomcat log.

This request works.

https://demo-apollo.hexagongeospatial.com:443/erdas-apollo/vector/CHEROKEESHP?SERVICE=WFS&format=GML2&VERSION=1.1.1&REQUEST=GetFeature&TYPENAME=iwfs:Buildings&SRS=EPSG:2240&FILTER=<Filter><ogc:And><PropertyIsEqualTo><PropertyName>Id</PropertyName><Literal>8758</Literal></PropertyIsEqualTo></ogc:And></Filter>

Also this works.

https://demo-apollo.hexagongeospatial.com:443/erdas-apollo/vector/CHEROKEESHP?SERVICE=WFS&format=GML2&VERSION=1.1.1&REQUEST=GetFeature&TYPENAME=iwfs:Buildings&SRS=EPSG:2240&FILTER=<Filter><ogc:And><ogc:BBOX><ogc:PropertyName>GEOMETRY</ogc:PropertyName><gml:Envelope srsName="EPSG:2240"><gml:lowerCorner>2204800 1507800</gml:lowerCorner><gml:upperCorner>2204900 1507900</gml:upperCorner></gml:Envelope></ogc:BBOX></ogc:And></Filter>

But the combination of both requests generate the error.

https://demo-apollo.hexagongeospatial.com:443/erdas-apollo/vector/CHEROKEESHP?SERVICE=WFS&format=GML2&VERSION=1.1.1&REQUEST=GetFeature&TYPENAME=iwfs:Buildings&SRS=EPSG:2240&FILTER=<Filter><ogc:And><ogc:BBOX><ogc:PropertyName>GEOMETRY</ogc:PropertyName><gml:Envelope srsName="EPSG:2240"><gml:lowerCorner>2204800 1507800</gml:lowerCorner><gml:upperCorner>2204900 1507900</gml:upperCorner></gml:Envelope></ogc:BBOX></ogc:And><ogc:And><PropertyIsEqualTo><PropertyName>Id</PropertyName><Literal>8758</Literal></PropertyIsEqualTo></ogc:And></Filter>

The TOMCAT-server.log is this

WARN (ajp-nio-127.0.0.1-8009-exec-15)[com.ionicsoft.wfs.server.GetFeatureProcessor] Error in WFS GetFeature Request processing. ServiceException.
com.ionicsoft.api.wfs.WFSLanguageException: (Error.FilterOneOperatorAllowed)The filter can contain only one operator.
at com.ionicsoft.wfs.ErrorUtil.createError(ErrorUtil.java:197)
at com.ionicsoft.wfs.ErrorUtil.throwError(ErrorUtil.java:217)
at com.ionicsoft.wfs.ErrorUtil.throwError(ErrorUtil.java:108)
at com.ionicsoft.wfs.sql.XMLFilterBuilder$FilterOperator.translateNode(XMLFilterBuilder.java:1744)
at com.ionicsoft.wfs.sql.XMLFilterBuilder.translateFilter(XMLFilterBuilder.java:297)
at com.ionicsoft.wfs.sql.XMLFilterBuilder.translateFilter(XMLFilterBuilder.java:285)
at com.ionicsoft.wfs.sql.XMLFilterBuilder.translateOneNode(XMLFilterBuilder.java:318)
at com.ionicsoft.wfs.sql.BaseXMLFilterBuilder.translateFilterPart(BaseXMLFilterBuilder.java:478)
at com.ionicsoft.wfs.sql.BaseXMLFilterBuilder.translateFilterPart(BaseXMLFilterBuilder.java:459)
at com.ionicsoft.wfs.sql.FilterBuilder.translateFilterPart(FilterBuilder.java:1408)
at com.ionicsoft.wfs.sql.BaseXMLFilterBuilder.translateFilterPart(BaseXMLFilterBuilder.java:399)
at com.ionicsoft.wfs.sql.FilterBuilder.translateFilterPart(FilterBuilder.java:1423)
at com.ionicsoft.wfs.server.FeatureGenerator.serialize(FeatureGenerator.java:1235)
at com.ionicsoft.wfs.server.FeatureGenerator.serializeCollection(FeatureGenerator.java:1757)
at com.ionicsoft.wfs.server.GetFeatureProcessor.performComputation(GetFeatureProcessor.java:761)
at com.ionicsoft.wfs.server.GetFeatureProcessor.process(GetFeatureProcessor.java:681)
at com.ionicsoft.wfs.server.BaseFeatureProcessor.computeResponse(BaseFeatureProcessor.java:66)
at com.ionicsoft.servlet.MethodServlet.doGetPost(MethodServlet.java:534)
at com.ionicsoft.servlet.MethodServlet.doGet(MethodServlet.java:337)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:649)
at com.ionicsoft.servlet.BaseServlet.service(BaseServlet.java:911)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:742)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:207)
at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:176)
at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:344)
at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:261)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.filters.CorsFilter.handleNonCORS(CorsFilter.java:364)
at org.apache.catalina.filters.CorsFilter.doFilter(CorsFilter.java:170)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)
at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)
at org.apache.coyote.ajp.AjpProcessor.service(AjpProcessor.java:479)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:834)

Any idea?

WFS_Sample-Request.pdf ‏57 KB

WFS_TOMCAT-Server.pdf ‏62 KB

[jan.neumann · Accepted solution]

Hi TMS,

Your OGC Filter is wrong - the two operands that you want to pair are supposed to be in a single <And> operator. After modifying your request like below, the filter works

https://demo-apollo.hexagongeospatial.com/erdas-apollo/vector/CHEROKEESHP?SERVICE=WFS&format=GML2&VERSION=1.1.1&REQUEST=GetFeature&TYPENAME=iwfs:Buildings&SRS=EPSG:2240&FILTER=<Filter><ogc:And><ogc:BBOX><ogc:PropertyName>GEOMETRY</ogc:PropertyName><gml:Envelope srsName="EPSG:2240"><gml:lowerCorner>2204800 1507800</gml:lowerCorner><gml:upperCorner>2204900 1507900</gml:upperCorner></gml:Envelope></ogc:BBOX><PropertyIsEqualTo><PropertyName>Id</PropertyName><Literal>8758</Literal></PropertyIsEqualTo></ogc:And></Filter>

[TMS]

Hi Jan,

perfect and thank you very much.

Can you also explain what is wrong with the request from Geomedia?

Best Regards,

Lars

[jan.neumann]

Hi Lars,

If the problematic request came from GeoMedia, then I'd suspect GeoMedia constructing the Filter incorrectly. You may want to open a support ticket and have it inspected. Perhaps it could be a bug in GeoMedia WFS data server.

Thanks,

Jan