Hi All
Apologies for the self-reply.  I feel this is a bug, but before I can raise 
one, I understand that it first needs to be confirmed by a third party.  I was 
therefore wondering if anyone might be able to confirm the following:
1) It should be possible for an ImageMosaic layer to use a pre-populated 
timestamp column in an existing granule index (i.e. database table).2) The 
indexer.properties file below looks reasonable.
Many thanks in advance,
Andrew


    On Monday, 12 July 2021, 14:43:50 BST, Andrew Chamberlain via 
Geoserver-users <geoserver-users@lists.sourceforge.net> wrote:  
 
 Hi All,
Not sure if this should be possible, but I'm trying to configure an ImageMosaic 
layer, whereby the index is pre-populated in a Postgres database and includes a 
timestamp column for when the imagery was captured.  My indexer.properties file 
looks like:

TimeAttribute=datecapturedSchema=*geometry:Polygon,location:String,datecaptured:java.util.DatePropertyCollectors=UseExistingSchema=trueCaching=falseAbsolutePath=trueName=metadata

However, when creating the layer, the TIME dimension remains unavailable, with 
the message "Cannot enable, no attribute of type Date found".  I've also 
created an index in the database, in case this mattered.
I can't find an example of using a mosaic index with a pre-populated time, so 
was starting to wonder whether it's possible at all?
Have tried on versions 2.17 and 2.19.  Any pointers would be greatly 
appreciated.
Many thanks,
Andrew Chamberlain

P.S. The only hint of any issue is the following from the logs, but I imagine 
this is a red herring and just a minor UI issue? 2021-07-12 14:21:27,263 WARN 
[wicket.Localizer] - Tried to retrieve a localized string for a component that 
has not yet been added to the page. This can sometimes lead to an invalid or no 
localized resource returned. Make sure you are not calling 
Component#getString() inside your Component's constructor. Offending component: 
[DimensionEditor [Component id = time]]

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