[udig-devel] [jira] Created: (UDIG-1633) Cannot resolve PostGIS layer to

["Harald Wellmann (JIRA)" <jira@xxxxxxxxxxxx>]

Cannot resolve PostGIS layer to JDBCDataStore
---------------------------------------------

                 Key: UDIG-1633
                 URL: http://jira.codehaus.org/browse/UDIG-1633
             Project: uDIG
          Issue Type: Bug
          Components: database
    Affects Versions: UDIG 1.2.RC1
         Environment: JDK 1.6.0_18, gtk.linux.x86_64
            Reporter: Harald Wellmann


I'm implementing a custom ActionTool working on a PostGIS layer, and I need to access the underlying DataSource from the tool implementation. I'm not sure if the following code is the best way of doing so, but with this approach, I hit a bug in PostgisSchemaFolder

        ILayer layer = getContext().getSelectedLayer();
        try
        {
            IService service = layer.getGeoResource().resolve(IService.class, null);
            IResolve member = service.members(null).get(0);
            boolean canResolve = member.canResolve(JDBCDataStore.class);
            if (canResolve)
            {
                JDBCDataStore store = member.resolve(JDBCDataStore.class, null);
                // FIXME: store is null!
                DataSource dataSource = store.getDataSource();
                log.info(dataSource.toString());
            }
        }
        catch (IOException exc)
        {
            exc.printStackTrace();
        }

member is of class PostgisSchemaFolder. canResolve() returns true for JDBCDataStore, but resolve() only works for DataStore, not for JDBCDataStore. I locally patched the resolve() method, replacing DataStore by JDBCDataStore to make things work.






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