Hi List,
We are back working on the CSW DirectDownload topic (I have already sent a
"Direct Download links from CSW" email related to this topic).
Therefore, I'm resurrecting this thread to communicate that I'm going to
check the preliminary work started by Andrea related to the
FileResourceInfo/FileServiceInfo in order to further discuss it/complete it.
I'll come back with additional details or a new pull request with the
updates.
Best Regards,
Daniele
On Tue, May 19, 2015 at 7:31 PM, Andrea Aime <[email protected]>
wrote:
> Hi,
> I've been trying to hash out the design for this stuff a bit using code,
> here
> is a preliminary result:
>
> https://github.com/aaime/geotools/commit/15dec9e635b5a23db6d230972eca5e566835fe3f
>
> Implementing it made me think a bit about the current interfaces, and ways
> to improve them.
> The interfaces work nicely with geotiff/netcdf/grib/worldimage, not as
> well with imagemosaic.
>
> Issues:
> * A image mosaic can be made of hundred of thousands of files, I guess we
> might want
> to return a CloseableIterator to gracefully handle that case
> (CloseableIterator would be
> a new interface, extending AutoCloseable and Iterator).
> * A image mosaic has multiple coverage, how about adding a ResourceInfo
> getInfo(Coverage) to
> GridCoverageReader and only return list of actual data files for that
> one, and return
> the mosaic index/properties/config files for the service info ones?
> Works better, but breaks the ability to backport the whole work... uh,
> maybe in the backport
> we can only add that to AbstractGridCoverageReader
> * A mosaic is made of files, main files, but those files might have
> sidecar files too, like, it can
> be made of world image files... when one downloads the main file, its
> sidecar files need to
> go along, but we cannot list the sidecar files in the main lists, we
> need to associate them with
> the particular file we want to download.
>
> To handle the latter, I'm almost wanting a getDataFiles(File mainFiles),
> getSupportFiles(File mainFile)
> to be added to the interfaces... which are starting to get a little
> crowded.
> As an alternative, have getFiles(File mainFile), and if it's called with
> null, we get the main list of files,
> if called with a file, the sidecar data files, and likewise for
> getSupportFiles(File mainFiles), main
> support files if a null argument is passed, support files or the main file
> if a non null argument is passed.
>
> Or... we stop returning File and we return a FileGroup class that would
> contain:
>
> class FileGroup {
> List<File> main;
> List<File> support;
> }
>
> and the interface would become then:
>
> CloseableIterator<FileGroup> getFiles();
>
> Opinions?
>
> Cheers
> Andrea
>
>
> On Thu, May 14, 2015 at 2:23 PM, Andrea Aime <[email protected]
> > wrote:
>
>> On Wed, May 13, 2015 at 7:47 PM, Jody Garnett <[email protected]>
>> wrote:
>>
>>> You mean, sub-interfaces of ServiceInfo and ResourceInfo, right?
>>>>
>>>
>>> I do.
>>>
>>> interface FileServiceInfo extends ServiceInfo {
>>> /**
>>> * File or directory providing service content.
>>> * Optional information provided to facilitate moving, renaming to
>>> deleting service contents on disk.
>>> *
>>> * For services specified by a single directory location check
>>> individual ResourceInfo.getFiles() for more information.
>>> *
>>> * @return files or directory locating service content.
>>> List<File> getFiles();
>>> }
>>>
>>> interface FileResourceInfo extends ResourceInfo {
>>> /**
>>> * File or directory providing resource content.
>>> * Optional information provided to facilitate moving, renaming or
>>> deleting resource contents on disk.
>>> *
>>> * For resources specified using a directory (such as a tileset) the
>>> entire directory contents are considered to define the resource.
>>> * @return files or directory providing resource content
>>> */
>>> List<Files> getFiles();
>>> }
>>>
>>
>> Hi Jody,
>> do you mind if we also add a:
>>
>> /**
>> * File or directory representing support files that do not qualify as
>> data itself (e.g. indexes, caches) that would
>> * still have to be dropped along with the data in case of removal
>> */
>> List<File> getSupportFiles();
>>
>> Cheers
>> Andrea
>>
>> --
>> ==
>> GeoServer Professional Services from the experts! Visit
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>> ==
>>
>> Ing. Andrea Aime
>> @geowolf
>> Technical Lead
>>
>> GeoSolutions S.A.S.
>> Via Poggio alle Viti 1187
>> 55054 Massarosa (LU)
>> Italy
>> phone: +39 0584 962313
>> fax: +39 0584 1660272
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>
>
>
> --
> ==
> Meet us at the INSPIRE Conference in Lisbon 25-29 May 2015! Visit
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> ==
>
> Ing. Andrea Aime
> @geowolf
> Technical Lead
>
> GeoSolutions S.A.S.
> Via Poggio alle Viti 1187
> 55054 Massarosa (LU)
> Italy
> phone: +39 0584 962313
> fax: +39 0584 1660272
> mob: +39 339 8844549
>
> http://www.geo-solutions.it
> http://twitter.com/geosolutions_it
>
> *AVVERTENZE AI SENSI DEL D.Lgs. 196/2003*
>
> Le informazioni contenute in questo messaggio di posta elettronica e/o
> nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il
> loro utilizzo è consentito esclusivamente al destinatario del messaggio,
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>
>
> The information in this message and/or attachments, is intended solely for
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> proprietary in nature or covered by the provisions of privacy act
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> Code).Any use not in accord with its purpose, any disclosure, reproduction,
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==
GeoServer Professional Services from the experts! Visit
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Ing. Daniele Romagnoli
Senior Software Engineer
GeoSolutions S.A.S.
Via Poggio alle Viti 1187
55054 Massarosa (LU)
Italy
phone: +39 0584 962313
fax: +39 0584 1660272
http://www.geo-solutions.it
http://twitter.com/geosolutions_it
-------------------------------------------------------
*AVVERTENZE AI SENSI DEL D.Lgs. 196/2003*
Le informazioni contenute in questo messaggio di posta elettronica e/o
nel/i file/s allegato/i sono da considerarsi strettamente riservate. Il
loro utilizzo è consentito esclusivamente al destinatario del messaggio,
per le finalità indicate nel messaggio stesso. Qualora riceviate questo
messaggio senza esserne il destinatario, Vi preghiamo cortesemente di
darcene notizia via e-mail e di procedere alla distruzione del messaggio
stesso, cancellandolo dal Vostro sistema. Conservare il messaggio stesso,
divulgarlo anche in parte, distribuirlo ad altri soggetti, copiarlo, od
utilizzarlo per finalità diverse, costituisce comportamento contrario ai
principi dettati dal D.Lgs. 196/2003.
The information in this message and/or attachments, is intended solely for
the attention and use of the named addressee(s) and may be confidential or
proprietary in nature or covered by the provisions of privacy act
(Legislative Decree June, 30 2003, no.196 - Italy's New Data Protection
Code).Any use not in accord with its purpose, any disclosure, reproduction,
copying, distribution, or either dissemination, either whole or partial, is
strictly forbidden except previous formal approval of the named
addressee(s). If you are not the intended recipient, please contact
immediately the sender by telephone, fax or e-mail and delete the
information in this message that has been received in error. The sender
does not give any warranty or accept liability as the content, accuracy or
completeness of sent messages and accepts no responsibility for changes
made after they were sent or for other risks which arise as a result of
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