It seems like this is a way to accomplish what I was looking for:
CoreContainer coreContainer = new CoreContainer();
File home = new
File("/home/max/packages/test/apache-solr-1.4.1/example/solr");
File f = new File(home, "solr.xml");
coreContainer.load("/home/max/packages/test/apache-solr-1.4.1/example/solr",
f);
SolrCore core = coreContainer.getCore("newsblog");
IndexSchema schema = core.getSchema();
DocumentBuilder builder = new DocumentBuilder(schema);
// get a Lucene Doc
// Document d = ...
SolrDocument solrDocument = new SolrDocument();
builder.loadStoredFields(solrDocument, d);
logger.debug("Loaded stored date: " +
solrDocument.getFieldValue("date_added_solr"));
However, one thing that scares me is the warning message I get from the
CoreContainer:
[java] Aug 25, 2010 10:25:23 PM org.apache.solr.update.SolrIndexWriter
finalize
[java] SEVERE: SolrIndexWriter was not closed prior to finalize(),
indicates a bug -- POSSIBLE RESOURCE LEAK!!!
I'm not sure what exactly triggers that but it's a result of the code I
posted above.
On Wed, Aug 25, 2010 at 10:49 PM, Max Lynch <ihas...@gmail.com> wrote:
> Right now I am doing some processing on my Solr index using Lucene Java.
> Basically, I loop through the index in Java and do some extra processing of
> each document (processing that is too intensive to do during indexing).
>
> However, when I try to update the document in solr with new fields (using
> SolrJ), the document either loses fields I don't explicitly set, or if I
> have Solr-specific fields such as a solr "date" field type, I am not able to
> copy the value as I can't read the value from Java.
>
> Is there a way to add a field to a solr document without having to
> re-create the document? If not, how can I read the value of a Solr date in
> java? Document.get("date_field") returns null even though the value shows
> up when I access it through solr. If I could read this value I could just
> copy the fields from the Lucene Document to a SolrInputDocument.
>
> Thanks.
>
