Re: [Lmappletserver-developers] Media columns in the MetaLogViewer

[Roberto M. <rob...@gm...>]

Hi Peter,

All changes regarding phase-one are implemented and committed. You can 
have a look and let me know what you think.

Next I will be continuing my work on the applet.

Regards,
Roberto

Peter Salomonsen wrote:
> OK - so you mean one folder per object (e.g. Vehicle entity) -  I 
> see.. Only drawback I see with that - is that if we say that the 
> images /movies come from a surveillance camera - and the snapshots are 
> very frequent - it can be maaany files for one camera, and then also 
> many files for that object. In that sense log_id would probably be 
> better?
>
> One use case might even be that you take photos, extract metadata 
> about the photo (time,place,colors,if anything is moving etc.) and 
> enable search on these metadatas as well as displaying the images. You 
> might imagine that it can be very many images for one object.
>
> regards,
>
> Peter
>
> On Nov 9, 2007 1:08 AM, Roberto MIlev <rob...@gm... 
> <mailto:rob...@gm...>> wrote:
>
>     Hi Peter,
>
>     I agree with your comments. One small thing though, when I sad
>     entry_id
>     I meant object_id. I have to get the object_id form the upload page
>     because the addLogEntry needs it. And by using that I can easy create
>     new folders or add files to existing ones. That is why I thought
>     it is a
>     better idea to use the object_id as folder coordinate. However, as
>     things are now I add every file a random integer number at the
>     beginning
>     of the file when writing it to the FS and DB, so there is no problem
>     with duplicate naming. Sorry once again for the miss leading and
>     please
>     tell me if my conclusion is fine.
>
>     Regards,
>     Roberto
>
>     Peter Salomonsen wrote:
>     > See comments below.
>     >
>     > On Nov 8, 2007 12:19 AM, Roberto MIlev <rob...@gm...
>     <mailto:rob...@gm...>
>     > <mailto:rob...@gm...
>     <mailto:rob...@gm...>>> wrote:
>     >
>     >     Hi Peter,
>     >
>     >     Here is a status on the progress so far:
>     >
>     >       1. What has been done so far.
>     >
>     >
>     >        * A new record in the metadata database teble is added
>     with "mmx"
>     >          dataType value:
>     >
>     >     insert  into
>     >    
>     `metadata`(`meta_id`,`name`,`context`,`priority`,`dataType`,`object_class_name`,`created`,`updated`,`searchProperty`,`numericValue`)
>     >     values (1015,'Multimedia','',9,'mmx','
>     >    
>     com.lightminds.appletserver.examples.metalog.Vehicle','2006-02-27
>     >     11:42:30','2006-02-27 11:42:30','','\0');
>     >
>     >
>     > This is good.
>     >
>     >
>     >
>     >        * The metadatalogentry gui table has the option when a
>     column has a
>     >          "mmx" dataType to show button instead of label cell.
>     That button
>     >          leads to downloading servlet (for now).
>     >
>     >
>     > Sounds good.
>     >
>     >
>     >
>     >        * Streaming(download) and uploading servlets are created
>     in new
>     >          project named lmappletserver_multimedia. The corresponding
>     >     changes
>     >          are made in lmappletserver_build project to include the
>     >     multimedia
>     >          project.
>     >
>     > ok
>     >
>     >
>     >
>     >          2. What has not been done so far:
>     >
>     >        * The uploading servlet does not place the files in
>     folders as we
>     >          discussed.
>     >        * There is no button or link to lead you to the upload
>     servlet.
>     >
>     > The idea is that one should use a e.g. mobile phone application
>     to do
>     > this. So you have to have this in mind, that the upload interface
>     > should be reachable by third party apps. As a test case you can
>     make a
>     > simple web form.
>     >
>     >
>     >        * Configuration parameters are still hardcoded in
>     MediaType class
>     >          (they will be in property file at the end as
>     >     report_conf.properties)
>     >
>     >          3. Questions:
>     >
>     >        * We didn't finally agree on how to make the folder
>     structure,
>     >          please tell me what approach to use?
>     >
>     >
>     > I think your last suggestion was good. Just make it to log_id
>     rather
>     > than entry_id. So that if there are more than one multimedia
>     file per
>     > log_entry they will be in the same folder. does that sound ok?
>     >
>     >
>     >
>     >        * Is it good to use the dataType metadata field to represent
>     >          multimedia column, or we need to add another column?
>     >
>     >
>     > Yes I think thats the best way.
>     >
>     >
>     >
>     >        * On the upload servlet now there is a field that gets
>     entryId,
>     >     for
>     >          that entryId the file is added in the database, is this OK?
>     >
>     >
>     > use log_id rather than entry_id - I probably think is better?
>     >
>     >
>     > regards,
>     >
>     > Peter
>
>