Re: [udig-devel] unable to load map

[Jesse Eichar <jesse.eichar@xxxxxxxxxxxxxx>]

Not sure I understand this.  So on shutodwn you plugin is saving a H2 database.  And because of this the map file is being corrupted? 

Is the process somehow changing the map?

Are you using the same framework that the Map uses?  There is a shutdown task framework for timeconsuming shutdown tasks so that the progress bar works correctly.  You might want to take a look at that.

Jesse

On Sat, Apr 18, 2009 at 10:02 AM, andrea antonello <andrea.antonello@xxxxxxxxx> wrote:

Holy ship!
It was really that. Putting a task to plugin stop is really not safe I
assume then.

I wonder if there might be similar situations that may trigger a map
file corruption.

Ciao
Andrea


On Sat, Apr 18, 2009 at 9:19 AM, andrea antonello

<andrea.antonello@xxxxxxxxx> wrote:
> Hi all,
> I have a question about this. Is it possible that udig is not able to
> write the maps down if on shutdown there is a task that is blocking.
> For example in Jgrass/BeeGIS we have a H2 database that on shutdown
> saves into that last annotations done on map and some gps related
> stuff. Is it possible that that one blocks the writing of the map
> file?
>
> Andrea
>
> On Mon, Apr 6, 2009 at 6:18 PM, andrea antonello
> <andrea.antonello@xxxxxxxxx> wrote:
>> Hi Emily,
>> thanks for the starting point. I will try from that point on. If I am
>> able to create a
>>
>>> Here is my two bits...
>>>
>>> From what I can tell when a new project or new map is created a new
>>> project/map resource is created (see ProjectImpl.createNewResource). This is
>>> created when you first create the project/map; and my understanding is that
>>> this is where the file name is selected for the project.
>>>
>>> When uDig is closed these resources are 'saved'.  I think this is done is
>>> ProjectPlugin line 153 "resource.save(saveOptions);".  I'm not familiar with
>>> the details though.  I also don't have any great insight into why the
>>> project file is empty.
>>>
>>> Do you have a set of steps that would allow me to reproduce this error?
>>> Maybe I can help you debug it a bit if I can reproduce it.
>>
>> I hope I will soon :) your help would be of great value. I'll come back on that.
>>
>> Andrea
>>
>>
>>>
>>> Emily
>>>
>>>
>>> andrea antonello wrote:
>>>>
>>>> Hi udiggers,
>>>> I am trying to solve issue 1467, i.e. the odd problem with the
>>>> projects not loading after restarting udig.
>>>>
>>>> There bug report is opened here: http://jira.codehaus.org/browse/UDIG-1467
>>>> but I found the problem NOT being related to that one.
>>>>
>>>> In fact I wasn't still able to track down where it happens.
>>>> The problem is that while the project file (project.uprj) is written
>>>> properly in the workspace, the map file ends up to be corrupted
>>>> (mapname.umap) and being empty.
>>>>
>>>> When debugging and producing this error, the debugger doesn't even
>>>> pass the code in the bug report above.
>>>>
>>>> Any better place I might look into to solve this? Where exactly is the
>>>> umap file written?
>>>>
>>>> Andrea
>>>> _______________________________________________
>>>> User-friendly Desktop Internet GIS (uDig)
>>>> http://udig.refractions.net
>>>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>>
>>> _______________________________________________
>>> User-friendly Desktop Internet GIS (uDig)
>>> http://udig.refractions.net
>>> http://lists.refractions.net/mailman/listinfo/udig-devel
>>>
>>
>
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