[Geoserver-devel] How to run GeoServer with WPS module

Ziegler_Stefan · February 21, 2010, 11:07pm

Hi

Try with something like this:

Catalog catalog = GeoServerExtensions.getBean(“catalog”);
FeatureTypeInfo fti = catalog.getFeatureTypeByName(namespace, name);
fti.getFeatureSource();

(not tested).
Thanks, I will test it tomorrow.

However, I’d say it’s bad practice for a process to connect to a data
source, it should receive whatever it needs from its inputs instead
(a FeatureCollection with the data you need might be a good idea, not
sure, don’t know exactly what you’re trying to do).
It’s a special transformation based on triangles covering the whole country. So I don’t want to upload the triangles all the time. And the users of the process just wants to transform his coordinates and doesn’t even have the triangles. Or more generally: what would be the best approach if the process is based on a really static and large dataset which the user doesn’t own?

best regards
Stefan

Cheers
Andrea

Ziegler_Stefan · March 3, 2010, 7:16am

Hi

Catalog catalog = GeoServerExtensions.getBean("catalog");
FeatureTypeInfo fti = catalog.getFeatureTypeByName(namespace, name);
fti.getFeatureSource();

(not tested).

It worked, thanks.

I was able to add my first working process. But I'm running into a strange
problem with the GetCapabilities request. To verifiy that it has nothing to
do with my code I checked out trunk without modifiying anything:

- checkout trunk
- build with "mvn clean install -Pwps"
- run jetty
- GetCapabilities-request for WPS works
- add a postgis datastore -> GetCapabilites-request still works
- restart jetty
- GetCapabilities-request returns a NullPointerException:

02 Mar 18:16:04 ERROR [geoserver.ows] -
java.lang.NullPointerException
  at
org.geoserver.catalog.impl.ModificationProxy.invoke(ModificationProxy.java:93)
  at $Proxy14.getKeywords(Unknown Source)
  at org.geoserver.wps.GetCapabilities.run(GetCapabilities.java:75)
  at
org.geoserver.wps.DefaultWebProcessingService.getCapabilities(DefaultWebProcessingService.java:54)
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  at java.lang.reflect.Method.invoke(Method.java:597)
  at org.geoserver.ows.Dispatcher.execute(Dispatcher.java:649)
  at org.geoserver.ows.Dispatcher.handleRequestInternal(Dispatcher.java:230)
  at
org.springframework.web.servlet.mvc.AbstractController.handleRequest(AbstractController.java:153)
  at
org.springframework.web.servlet.mvc.SimpleControllerHandlerAdapter.handle(SimpleControllerHandlerAdapter.java:48)
  at
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:875)
  at
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:809)
  at
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:571)
  at
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:501)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
  at javax.servlet.http.HttpServlet.service(HttpServlet.java:820)
  at org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:487)
  at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1093)
  at
org.geoserver.platform.AdvancedDispatchFilter.doFilter(AdvancedDispatchFilter.java:48)
  at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
  at
org.vfny.geoserver.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:108)
  at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:265)
  at
org.acegisecurity.intercept.web.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:107)
  at
org.acegisecurity.intercept.web.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:72)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
  at
org.acegisecurity.ui.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:124)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
  at
org.acegisecurity.providers.anonymous.AnonymousProcessingFilter.doFilter(AnonymousProcessingFilter.java:125)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
  at
org.acegisecurity.ui.rememberme.RememberMeProcessingFilter.doFilter(RememberMeProcessingFilter.java:135)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
  at
org.acegisecurity.wrapper.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:81)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
  at
org.acegisecurity.ui.AbstractProcessingFilter.doFilter(AbstractProcessingFilter.java:271)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
  at org.acegisecurity.ui.logout.LogoutFilter.doFilter(LogoutFilter.java:110)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
  at
org.acegisecurity.context.HttpSessionContextIntegrationFilter.doFilter(HttpSessionContextIntegrationFilter.java:249)
  at
org.acegisecurity.util.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:275)
  at
org.acegisecurity.util.FilterChainProxy.doFilter(FilterChainProxy.java:149)
  at
org.acegisecurity.util.FilterToBeanProxy.doFilter(FilterToBeanProxy.java:98)
  at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
  at org.geoserver.filters.LoggingFilter.doFilter(LoggingFilter.java:73)
  at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
  at
org.geoserver.filters.ReverseProxyFilter.doFilter(ReverseProxyFilter.java:183)
  at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
  at org.geoserver.filters.GZIPFilter.doFilter(GZIPFilter.java:41)
  at
org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1084)
  at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:360)
  at
org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
  at org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:181)
  at org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:726)
  at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:405)
  at
org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:206)
  at
org.mortbay.jetty.handler.HandlerCollection.handle(HandlerCollection.java:114)
  at org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
  at org.mortbay.jetty.Server.handle(Server.java:324)
  at org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:505)
  at
org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:828)
  at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:514)
  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.BoundedThreadPool$PoolThread.run(BoundedThreadPool.java:450)

Any ideas?
regards
Stefan

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Andrea_Aime3 · March 9, 2010, 9:31am

Stefan Ziegler ha scritto:

Hi

Catalog catalog = GeoServerExtensions.getBean("catalog");
FeatureTypeInfo fti = catalog.getFeatureTypeByName(namespace, name);
fti.getFeatureSource();

(not tested).

It worked, thanks.

I was able to add my first working process. But I'm running into a strange
problem with the GetCapabilities request. To verifiy that it has nothing to
do with my code I checked out trunk without modifiying anything:

- checkout trunk
- build with "mvn clean install -Pwps"
- run jetty - GetCapabilities-request for WPS works
- add a postgis datastore -> GetCapabilites-request still works
- restart jetty
- GetCapabilities-request returns a NullPointerException:

Hi Stefan,
sorry for the late reply, I had quite a week.
I tracked down the problem and opened a jira issue: http://jira.codehaus.org/browse/GEOS-3846

In the meantime I've committed a temporary workaround in WPS,
you can update and it should be working

Cheers
Andrea

--
Andrea Aime
OpenGeo - http://opengeo.org
Expert service straight from the developers.