Hi,
Sorry, the email was supposed to go to the users list as well. Anyway, it
seems the problem occurs in the shapefileDataStore.createDbaseHeader(..)
method. From what I can gather, if fails to add a column for the
"metaDataProperty" attribute because it's type is set to Object (not
Integer, Short, Date etc.).
Should I even be calling ShapefielDataStore.createSchema(..) with the result
of my DefaultFeatureCollection.getSchema()?
Cheers,
Jon
On 15 June 2011 00:46, Jody Garnett <[email protected]> wrote:
> Hi Jon:
>
> You will need to send email to the user list; the company I work for
> actually offers developer support (allowing me to respond promptly by
> email). If you are interested you can visit http://lisasoft.com/ for the
> details.
>
> That is really good you are getting the parser to work.
>
> I did not actually find the exception message helpful and would need to
> look at that section of code. I recommend putting a breakpoint in there and
> stepping through with the debugger to see if you can determine why the error
> is occurring.
>
> --
> Jody Garnett
>
> On Wednesday, 15 June 2011 at 12:14 AM, Jon Britton wrote:
>
> Hi Jody,
>
> I saw some code using GMLConfiguration and Parser, which I've tried to
> adapt to my problem (code below). However, it fails at
> newDataStore.createSchema(fc.getSchema()) and produces a java.io.IOException
> (shown in full below). It seems to have read in the GML ok, which is a
> start. Any help would be appreciated. Cheers, Jon.
>
> CODE:
>
> URL url = new URL(dataUrl);
> InputStream in = url.openStream();
>
> GMLConfiguration config = new GMLConfiguration();
> Parser parser = new Parser(config);
> DefaultFeatureCollection fc = (DefaultFeatureCollection) parser
> .parse(in);
>
> // Create random name
> Random rand = new Random();
> String fileName = Long.toString(Math.abs(rand.nextLong()), 36);
>
> File file = new File(getServletContext().getRealPath("WEB-INF")
> + ""/tempfiles/" + fileName + ".shp");
>
> ShapefileDataStoreFactory dataStoreFactory = new
> ShapefileDataStoreFactory();
> Map<String, Serializable> params = new HashMap<String, Serializable>();
> params.put("url", file.toURI().toURL());
> params.put("create spatial index", Boolean.TRUE);
>
> ShapefileDataStore newDataStore = (ShapefileDataStore) dataStoreFactory
> .createNewDataStore(params);
> newDataStore.createSchema(fc.getSchema());
>
> /*
> * Write the features to the shapefile
> */
> Transaction transaction = new DefaultTransaction("create");
>
> String typeName = newDataStore.getTypeNames()[0];
> FeatureSource featureSource = newDataStore
> .getFeatureSource(typeName);
>
> if (featureSource instanceof FeatureStore) {
> FeatureStore featureStore = (FeatureStore) featureSource;
>
> featureStore.setTransaction(transaction);
> try {
> featureStore.addFeatures(fc);
> transaction.commit();
>
> } catch (Exception problem) {
> problem.printStackTrace();
> transaction.rollback();
> } finally {
> transaction.close();
> }
> } else {
> LOGGER.info(typeName + " does not support read/write access");
> }
>
> EXCEPTION:
>
> java.io.IOException: Unable to write : java.lang.Object
> at
> org.geotools.data.shapefile.ShapefileDataStore.createDbaseHeader(ShapefileDataStore.java:1061)
> at
> org.geotools.data.shapefile.ShapefileDataStore.createSchema(ShapefileDataStore.java:855)
> at
> uk.ac.glam.smartwps.server.OWSRequestServiceImpl.gmlToShapefile(OWSRequestServiceImpl.java:286)
> at
> uk.ac.glam.smartwps.server.OWSRequestServiceImpl.testSomething(OWSRequestServiceImpl.java:748)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at com.google.gwt.user.server.rpc.RPC.invokeAndEncodeResponse(RPC.java:569)
> at
> com.google.gwt.user.server.rpc.RemoteServiceServlet.processCall(RemoteServiceServlet.java:208)
> at
> com.google.gwt.user.server.rpc.RemoteServiceServlet.processPost(RemoteServiceServlet.java:248)
> at
> com.google.gwt.user.server.rpc.AbstractRemoteServiceServlet.doPost(AbstractRemoteServiceServlet.java:62)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:637)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
> at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:362)
> at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
> at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:729)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at
> org.mortbay.jetty.handler.RequestLogHandler.handle(RequestLogHandler.java:49)
> at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:324)
> at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.content(HttpConnection.java:843)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:647)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:211)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:380)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:395)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:488)
>
> On 14 June 2011 13:28, Jody Garnett <[email protected]> wrote:
>
> Here is the trouble; especially with GML from a WPS service - what schema
> does the GML match? We need the schema in order to do a good job parsing it.
> GML without a schema is like charging off into the wilderness; it may be a
> fun ride but you are not going to be sure where you will end up.
>
> However if your GML output references a schema at the top of the file you
> may be okay? I added some code the the GML utility class that would process
> the output of parsing GML without a schema (ends up as raw data in
> java.util.Map data structures) and convert it into "features" for normal
> use.
>
> You can backport that code if you like; if not I recommend using the GML
> Configuration + Parser and sorting things out yourself.
>
> --
> Jody Garnett
>
> On Tuesday, 14 June 2011 at 10:11 PM, Jon Britton wrote:
>
> Hi,
>
> I need to convert the output of a WPS process (GML) to Shapefile so I can
> upload it into GeoServer. I've done some searching and found quite a few
> different examples, many of which seem out of date (or even too in-date, I'm
> using GeoTools 2.6.1). All I've got is a URL to the GML process output to
> work with.
>
> Any help would be appreciated.
>
> Thanks,
>
> Jon
>
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