Re: [udig-devel] Problems loading layers in uDig

[Jody Garnett <jody.garnett@xxxxxxxxx>]

We should create a bug report for you to attach those shape files to… let me see what happens when I try.

We make use of the GeoTools library; I cannot remember any recent work on shape file (but I have not been playing close attention).

I can confirm that your files show up using uDig 1.2.3 - nothing looks scary here; your file has a prj file and so on.

Moving over to my development environment; I cannot even get as far as you - the file fails to drag and drop; and fails when I select from the wizard …

Stepping through the ShpServiceExtension code:

1) isSupportedExtensionURL works

2) createServiceParams uses the geotools datastore factory to check the URL more carefully

3) It then packages it up with the correct URL and gives it to …

4) createService( Map params ) which finally 

5) Creates a ShpServiceImpl …

So the URL / Params are checking out okay (this is the usual way we break things).

Moving on to CatalogImpl constructServices it tests that the shape file connects before adding it into the mix.

And that fails! With the following file not found exception:

java.io.FileNotFoundException: /Volumes/Fiore/jody/Downloads/Matthew.Willis@xxxxxxxxxxx%20-%20Re:%20%5Budig-devel%5D%20Problems%20loading%20layers%20in%20uDig/Hasson%20BW%20and%20CM%20Hasson%20Wheat%202012.shp (No such file or directory)

So that sounds like a total miss on File -> URL -> File 

Here is the stack trace … I got this by turning on tracing when running uDig (it is one of the tabs on the run configuration):

Caused by: java.io.FileNotFoundException: /Volumes/Fiore/jody/Downloads/Matthew.Willis@xxxxxxxxxxx%20-%20Re:%20%5Budig-devel%5D%20Problems%20loading%20layers%20in%20uDig/Hasson%20BW%20and%20CM%20Hasson%20Wheat%202012.shp (No such file or directory)

at java.io.RandomAccessFile.open(Native Method)

at java.io.RandomAccessFile.<init>(RandomAccessFile.java:216)

at org.geotools.data.shapefile.ShpFiles.getReadChannel(ShpFiles.java:834)

at org.geotools.data.shapefile.shp.ShapefileReader.<init>(ShapefileReader.java:240)

at org.geotools.data.shapefile.ShapefileDataStore.openShapeReader(ShapefileDataStore.java:558)

at org.geotools.data.shapefile.ShapefileDataStore.readAttributes(ShapefileDataStore.java:785)

at org.geotools.data.shapefile.ShapefileDataStore.getSchema(ShapefileDataStore.java:743)

at org.geotools.data.AbstractFileDataStore.getFeatureSource(AbstractFileDataStore.java:77)

at net.refractions.udig.catalog.internal.shp.ShpServiceImpl.getDS(ShpServiceImpl.java:244)

So I suspect the ShpServiceExtension toShpURL( url ) as the cause our trouble; it is unpacking the URL authority and path and trying to form it into a file. I am going to make use of the URLUtils class directly and see if it improves matters for me.

Jody