Re: Question on Solr Velocity Example

[Chris Hostetter]

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Re: Question on Solr Velocity Example

[O. Olson]

- Messaggio originale -
Da: Erik Hatcher 
A: solr-user@lucene.apache.org; O. Olson 
Cc: 
Inviato: Venerdì 18 Gennaio 2013 15:20
Oggetto: Re: Question on Solr Velocity Example


Great question.  $response is as described here 
<http://wiki.apache.org/solr/VelocityResponseWriter#Velocity_Context>

You can navigate Solr's javadocs (or via IDE and the source code as I do) to 
trace what that object returns and then introspect as you drill in.

I often just add '.class' to something in a template to have it output what 
kind of Java object it is, and work from there, such as 
$response.clusters.class 


-

Thank you Erik. On the Page 
http://wiki.apache.org/solr/VelocityResponseWriter#Velocity_Context if you 
click on QueryResponse you get a 404 i.e. a link to 
http://lucene.apache.org/solr/4_0_0/solr-core/org/apache/solr/client/solrj/response/QueryResponse.html
 is a 404. 
 
Thank you for throwing light on my other questions. Your
responses helped.
 
Thank you,
O. O.

Re: Question on Solr Velocity Example

[Erik Hatcher]

On Jan 18, 2013, at 14:47 , O. Olson wrote:
> I am new to
> Solr (and Velocity), and have downloaded Solr 4.0 from 
> http://lucene.apache.org/solr/downloads.html.
> I started the example solr, and indexed the XML files in the /exampledocs
> directory. Next, I pointed the browser to: http://localhost:8983/solr/browse 
> and I get the results along with the search and faceted search functionality. 
> I
> am interested in learning how this example works. I hope some of you can help
> me with the following questions:  
>  
> 1.  In
> this example, we seem to be using the Velocity templates in: 
> /example/solr/collection1/conf/velocity.
> The overall page at http://localhost:8983/solr/browse seems to be generated 
> from browse.vm - which seems to include (parse) other
> templates. My question here is that I see things like 
> $response.response.clusters
> – Where can I know what properties the “response” object has, or the 
> “clusters”
> object has?

Great question.  $response is as described here 


You can navigate Solr's javadocs (or via IDE and the source code as I do) to 
trace what that object returns and then introspect as you drill in.

I often just add '.class' to something in a template to have it output what 
kind of Java object it is, and work from there, such as 
$response.clusters.class 

> Also there seem to be some methods like display_facet_query() –
> where is this defined. Is there some documentation for this, or some way I can
> find this out? I might need to modify these values, hence my question. (I am
> completely new to Velocity – but I think I get some idea by looking at the
> templates.)

display_facet_query is a macro defined in velocity/VM_global_library.vm, which 
is the default Velocity location to put global macros that all templates can 
see. 

> 2.  In http://localhost:8983/solr/browse page, we have a list of Query 
> Facets. Right now I just see two: ipod and GB?
> How are these values obtained? Do they come from elevate.xml?? Here I see 
> ipod,
> but not GB. 

They come from the definition of the /browse handler (in other words, just 
arbitrary query request parameters but hard-coded for example purposes) as: 

   ipod
   GB

The Velocity templates (facet_queries.vm in this case) dynamically generates 
the link and count display for all facet.query's in the request.

Erik

Question on Solr Velocity Example

[O. Olson]

Hi,
 
    I am new to
Solr (and Velocity), and have downloaded Solr 4.0 from 
http://lucene.apache.org/solr/downloads.html.
I started the example solr, and indexed the XML files in the /exampledocs
directory. Next, I pointed the browser to: http://localhost:8983/solr/browse 
and I get the results along with the search and faceted search functionality. I
am interested in learning how this example works. I hope some of you can help
me with the following questions:  
 
1.  In
this example, we seem to be using the Velocity templates in: 
/example/solr/collection1/conf/velocity.
The overall page at http://localhost:8983/solr/browse seems to be generated 
from browse.vm - which seems to include (parse) other
templates. My question here is that I see things like 
$response.response.clusters
– Where can I know what properties the “response” object has, or the “clusters”
object has? Also there seem to be some methods like display_facet_query() –
where is this defined. Is there some documentation for this, or some way I can
find this out? I might need to modify these values, hence my question. (I am
completely new to Velocity – but I think I get some idea by looking at the
templates.)
 
2.  In http://localhost:8983/solr/browse page, we have a list of Query 
Facets. Right now I just see two: ipod and GB?
How are these values obtained? Do they come from elevate.xml?? Here I see ipod,
but not GB. 
 
I would appreciate any help on these questions. If the above description is not 
clear please let me know.
 
Thank you,
O. O.