Hello,

I'm trying to connect to a WFS Server (GeoServer 1.3 RC6) from a Java class by using geotools 2.1.0.

1.) I can read the properties of a shape file, but when I try to access an SDE via the GeoServer, I get the error described below. Can the reason for the exception be that the FeatureType String contains a "." (dot) for separating user name, database and feature class?

2.) In the procedure described above, the used namespace is "ispace" and the datastore is "ispace_ms". The error message changes, if the namespace equals the datastore (see second error message below).

3.) At the moment, I'm accessing the WFS via a GetCapabilities Request and then extracting the features "by hand". Is there a possibility to send a GetFeature Request and directly access the returned features as "elements" (such as GML, etc.). My code is posted in "ad 3.)" below.


ad 1.)
java.io.IOException: org.xml.sax.SAXException: Could not find element handler for http://www.opengis.net/gml : SALZBURG.SALZBURG.HOLIDAYVOTINGS as a child of FeatureAssociationType.
   at org.geotools.xml.gml.FCBuffer.hasNext(FCBuffer.java:304)
at org.geotools.data.wfs.WFSFeatureReader.loadElement(WFSFeatureReader.java:164) at org.geotools.data.wfs.WFSFeatureReader.hasNext(WFSFeatureReader.java:153) at org.geotools.data.wfs.WFSDataStore.getFeatureReader(WFSDataStore.java:763)
   at GetFeatureFromWFS.getFeature(GetFeatureFromWFS.java:86)
at GE_Visualisierung_geOpinion.doGetOrPost(GE_Visualisierung_geOpinion.java:40) at GE_Visualisierung_geOpinion.doGet(GE_Visualisierung_geOpinion.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
   at java.lang.Thread.run(Unknown Source)
Caused by: org.xml.sax.SAXException: Could not find element handler for http://www.opengis.net/gml : SALZBURG.SALZBURG.HOLIDAYVOTINGS as a child of FeatureAssociationType.
   at org.geotools.xml.XMLSAXHandler.startElement(XMLSAXHandler.java:333)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
   at javax.xml.parsers.SAXParser.parse(Unknown Source)
   at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.geotools.xml.DocumentFactory.getInstance(DocumentFactory.java:139)
   at org.geotools.data.wfs.WFSFeatureReader.run(WFSFeatureReader.java:123)

ad 2.)
java.io.IOException: org.geotools.ows.ServiceException: null error:Translator error
   at org.geotools.xml.gml.FCBuffer.hasNext(FCBuffer.java:304)
at org.geotools.data.wfs.WFSFeatureReader.loadElement(WFSFeatureReader.java:164) at org.geotools.data.wfs.WFSFeatureReader.hasNext(WFSFeatureReader.java:153) at org.geotools.data.wfs.WFSDataStore.getFeatureReader(WFSDataStore.java:763)
   at GetFeatureFromWFS.getFeature(GetFeatureFromWFS.java:86)
at GE_Visualisierung_geOpinion.doGetOrPost(GE_Visualisierung_geOpinion.java:40) at GE_Visualisierung_geOpinion.doGet(GE_Visualisierung_geOpinion.java:116)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148) at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856) at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744) at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527) at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
   at java.lang.Thread.run(Unknown Source)
Caused by: org.geotools.ows.ServiceException: null error:Translator error
   at org.geotools.xml.XMLSAXHandler.endElement(XMLSAXHandler.java:229)
at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanEndElement(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDispatcher.dispatch(Unknown Source) at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source) at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
   at javax.xml.parsers.SAXParser.parse(Unknown Source)
   at javax.xml.parsers.SAXParser.parse(Unknown Source)
at org.geotools.xml.DocumentFactory.getInstance(DocumentFactory.java:139)
   at org.geotools.data.wfs.WFSFeatureReader.run(WFSFeatureReader.java:123)

ad 3.)
wfsURL = new URL("http://62.218.44.102:8080/geoserver/wfs?Version=1.0.0&Request=GetCapabilities&service=wfs";); Map m = new HashMap();
m.put(WFSDataStoreFactory.URL.key, wfsURL);
m.put(WFSDataStoreFactory.TIMEOUT.key, new Integer(10000));
WFSDataStoreFactory wfsDSF = new WFSDataStoreFactory();
DataStore wfs = wfsDSF.createNewDataStore(m);
Query query = new DefaultQuery("ispace:SALZBURG.SALZBURG.HOLIDAYVOTINGS_WGS84");
FeatureReader ft = wfs.getFeatureReader(query,Transaction.AUTO_COMMIT);
try {
Object[] points = new Object[size];
Object[] comments = new Object[size];
Object[] voteTypes = new Object[size];

Object[] attributes = new Object[size];
ft.next().getAttributes(attributes);

Object[] attribs = new Object[50];
ft.next().getAttributes(attribs);
int attributeCount = 0;
while(attributeCount<3)
{
   ft = wfs.getFeatureReader(query,Transaction.AUTO_COMMIT);
   int p=0;
while(ft.hasNext()) { if(attributeCount == 0)
       {
           points[p] = ft.next().getAttribute(0);
       }
       else if(attributeCount == 1)
       {
           voteTypes[p] = ft.next().getAttribute(1);
       }
       else if(attributeCount == 2)
       {
           comments[p] = ft.next().getAttribute(2);
           if(comments[p].equals(""))
               comments[p] = " ";
       }
       p++;
   }

   attributeCount++;
}



Thank you very much for your help already in advance,
Bernd.


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