[gatein-issues] [JBoss JIRA] Updated: (GTNPORTAL-511) userPref of gadgets are not sometime not saved correctly

[jerem j (JIRA)]

     [ https://jira.jboss.org/jira/browse/GTNPORTAL-511?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

jerem j updated GTNPORTAL-511:
------------------------------

    Attachment: GTNPORTAL-511.patch


this patch is fixing partially this task.

there is still a problem when requests modifying the preferences are made in a very short time. This due to the fact that the portal commit the changes into the JCR at the end of the request. Even if the function is Synchronized, the overhead of the portal create a concurrency problem.

> userPref of gadgets are not sometime not saved correctly
> --------------------------------------------------------
>
>                 Key: GTNPORTAL-511
>                 URL: https://jira.jboss.org/jira/browse/GTNPORTAL-511
>             Project: GateIn Portal
>          Issue Type: Bug
>          Components: User Interface
>    Affects Versions: 3.0.0-Beta04
>         Environment: svn r1330
>            Reporter: jerem j
>             Fix For: 3.0.0-CR01
>
>         Attachments: GTNPORTAL-511.patch
>
>   Original Estimate: 3 days
>  Remaining Estimate: 3 days
>
> Every call to gadgets.Prefs.set generate a call to save the data in the backend (an action in the dashboard portlet). To save we send all the set of preferences.
> The jira gadget call this API multiple times in a very short time. So there is multiple ajax request sent to the backend but not in a precise order. So it might happen that the first request arrive the last one, and so old preferences are saved.
> To fix:
> In the file Gadgets.js, function "gadgets.IfrGadgetService.prototype.setUserPref", prefs is updated with all the name/value, and ALL the prefs object is saved. Instead of saving all the preferences, we should only save the updated preferences.
> In org.exoplatform.portal.pom.spi.gadget.Gadget it will be needed to be able to add preference by name, something like :
> public void setUserPref(String name, String value)
> code :
> Gadgets.js: http://fisheye.exoplatform.org/browse/projects/portal/trunk/web/eXoResources/src/main/webapp/javascript/eXo/gadget/Gadgets.js?r=HEAD
> ExoBasedUserPrefStore.js: http://fisheye.exoplatform.org/browse/projects/portal/trunk/web/eXoResources/src/main/webapp/javascript/eXo/gadget/ExoBasedUserPrefStore.js?r=HEAD
> links:
> API doc about adgets.Prefs.set: http://code.google.com/apis/gadgets/docs/reference/#gadgets.Prefs.set
> Jira gadget to test: http://jira4j.exoplatform.org/rest/gadgets/1.0/g/com.atlassian.jira.gadgets:watched-gadget/gadgets/watched-gadget.xml

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