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Posted to user@uima.apache.org by Jörn Kottmann <ko...@gmail.com> on 2010/10/20 12:35:44 UTC
Serialize only one view of a CAS
Hi everyone,
is it possible to only serialize one view of a CAS ?
In my case the "_InitialView" contains an xml document, which
is transformed by an AE into a plain text representation, and
placed in a view called "Article".
The serialization code now should only write the "Article"
view into the xmi file, and dropping the "_InitialView".
As far as I know the "_InitialView" must always exist,
so it would be ok to just rename the "Article" view
to "_InitialView" in the serialzed CAS.
I looked at the XmiCasSerializer class but could not find
a setting which specifies which views are serialized.
Thanks,
Jörn
Re: Serialize only one view of a CAS
Posted by Jörn Kottmann <ko...@gmail.com>.
Thanks, I will try that.
Jörn
On 10/20/10 4:09 PM, Eddie Epstein wrote:
> Hi Jörn,
>
> The only way to do this now is to create a 2nd CAS, copy over the
> parts wanted using the org.apache.uima.util.CasCopier and serialize
> the new CAS.
>
> A more direct solution is the proposal for serialization to support
> "CAS projections".
> A brief description is in
> https://cwiki.apache.org/UIMA/reducing-overhead-for-remote-service-calls.html
>
> Eddie
>
>
> On Wed, Oct 20, 2010 at 6:35 AM, Jörn Kottmann<ko...@gmail.com> wrote:
>> Hi everyone,
>>
>> is it possible to only serialize one view of a CAS ?
>>
>> In my case the "_InitialView" contains an xml document, which
>> is transformed by an AE into a plain text representation, and
>> placed in a view called "Article".
>> The serialization code now should only write the "Article"
>> view into the xmi file, and dropping the "_InitialView".
>>
>> As far as I know the "_InitialView" must always exist,
>> so it would be ok to just rename the "Article" view
>> to "_InitialView" in the serialzed CAS.
>>
>> I looked at the XmiCasSerializer class but could not find
>> a setting which specifies which views are serialized.
>>
>> Thanks,
>> Jörn
>>
Re: Serialize only one view of a CAS
Posted by Eddie Epstein <ea...@gmail.com>.
Adding multiview support should not be hard. It took a couple hours to change
the CVD to support multiple views without ever seeing CVD code before.
Probably less work than getting a general view copy & name change working.
Note that the CasCopier implements a deep copy, which means that if a FS
in view 1 being copied references an annotation in another view 2 it will copy
view 2 as well.
Eddie
On Thu, Oct 21, 2010 at 7:44 AM, Jörn Kottmann <ko...@gmail.com> wrote:
> If only the Article view is copied, a new view of the same name is created
> in the new CAS, but it seems not be possible to copy the Article View to
> the _InitialView in the new CAS. Which I want to do, because otherwise
> the CAS cannot be opened in the Cas Editor (lacks multi view support).
>
> Is there a way doing this?
>
> Oterhwise the current copyCasView method could be extended
> with a new destination view name argument:
> public void copyCasView(CAS aSrcCasView, String dstViewName, boolean
> aCopySofa)
>
> The current copyCasView method would then simply call the extended one
> with the view name of the source view .
>
> Jörn
>
> On 10/20/10 4:09 PM, Eddie Epstein wrote:
>>
>> Hi Jörn,
>>
>> The only way to do this now is to create a 2nd CAS, copy over the
>> parts wanted using the org.apache.uima.util.CasCopier and serialize
>> the new CAS.
>>
>> A more direct solution is the proposal for serialization to support
>> "CAS projections".
>> A brief description is in
>>
>> https://cwiki.apache.org/UIMA/reducing-overhead-for-remote-service-calls.html
>>
>> Eddie
>>
>>
>> On Wed, Oct 20, 2010 at 6:35 AM, Jörn Kottmann<ko...@gmail.com> wrote:
>>>
>>> Hi everyone,
>>>
>>> is it possible to only serialize one view of a CAS ?
>>>
>>> In my case the "_InitialView" contains an xml document, which
>>> is transformed by an AE into a plain text representation, and
>>> placed in a view called "Article".
>>> The serialization code now should only write the "Article"
>>> view into the xmi file, and dropping the "_InitialView".
>>>
>>> As far as I know the "_InitialView" must always exist,
>>> so it would be ok to just rename the "Article" view
>>> to "_InitialView" in the serialzed CAS.
>>>
>>> I looked at the XmiCasSerializer class but could not find
>>> a setting which specifies which views are serialized.
>>>
>>> Thanks,
>>> Jörn
>>>
>
>
Re: Serialize only one view of a CAS
Posted by Jörn Kottmann <ko...@gmail.com>.
If only the Article view is copied, a new view of the same name is created
in the new CAS, but it seems not be possible to copy the Article View to
the _InitialView in the new CAS. Which I want to do, because otherwise
the CAS cannot be opened in the Cas Editor (lacks multi view support).
Is there a way doing this?
Oterhwise the current copyCasView method could be extended
with a new destination view name argument:
public void copyCasView(CAS aSrcCasView, String dstViewName, boolean
aCopySofa)
The current copyCasView method would then simply call the extended one
with the view name of the source view .
Jörn
On 10/20/10 4:09 PM, Eddie Epstein wrote:
> Hi Jörn,
>
> The only way to do this now is to create a 2nd CAS, copy over the
> parts wanted using the org.apache.uima.util.CasCopier and serialize
> the new CAS.
>
> A more direct solution is the proposal for serialization to support
> "CAS projections".
> A brief description is in
> https://cwiki.apache.org/UIMA/reducing-overhead-for-remote-service-calls.html
>
> Eddie
>
>
> On Wed, Oct 20, 2010 at 6:35 AM, Jörn Kottmann<ko...@gmail.com> wrote:
>> Hi everyone,
>>
>> is it possible to only serialize one view of a CAS ?
>>
>> In my case the "_InitialView" contains an xml document, which
>> is transformed by an AE into a plain text representation, and
>> placed in a view called "Article".
>> The serialization code now should only write the "Article"
>> view into the xmi file, and dropping the "_InitialView".
>>
>> As far as I know the "_InitialView" must always exist,
>> so it would be ok to just rename the "Article" view
>> to "_InitialView" in the serialzed CAS.
>>
>> I looked at the XmiCasSerializer class but could not find
>> a setting which specifies which views are serialized.
>>
>> Thanks,
>> Jörn
>>
Re: Serialize only one view of a CAS
Posted by Eddie Epstein <ea...@gmail.com>.
Hi Jörn,
The only way to do this now is to create a 2nd CAS, copy over the
parts wanted using the org.apache.uima.util.CasCopier and serialize
the new CAS.
A more direct solution is the proposal for serialization to support
"CAS projections".
A brief description is in
https://cwiki.apache.org/UIMA/reducing-overhead-for-remote-service-calls.html
Eddie
On Wed, Oct 20, 2010 at 6:35 AM, Jörn Kottmann <ko...@gmail.com> wrote:
> Hi everyone,
>
> is it possible to only serialize one view of a CAS ?
>
> In my case the "_InitialView" contains an xml document, which
> is transformed by an AE into a plain text representation, and
> placed in a view called "Article".
> The serialization code now should only write the "Article"
> view into the xmi file, and dropping the "_InitialView".
>
> As far as I know the "_InitialView" must always exist,
> so it would be ok to just rename the "Article" view
> to "_InitialView" in the serialzed CAS.
>
> I looked at the XmiCasSerializer class but could not find
> a setting which specifies which views are serialized.
>
> Thanks,
> Jörn
>