On Sep 7, 2008, at 2:04 PM, Brian Whitman wrote:
Hm... I seem to be having trouble getting either the Factory or the
Processor to do an init() for me.
The end result I'd like to see is a function that gets called only
once, either on solr init or the first time the handler is called.
I can't seem to do that.
Here's my code, and a solution I think works -- is there a better way
to do this:
public class KeepIndexedDateFactory extends
UpdateRequestProcessorFactory implements SolrCoreAware
{
DataClassIWantToInstantiateOnce data;
KeepIndexedDateProcessor p;
public void inform(SolrCore core) {
data = new DataClassIWantToInstantiateOnce(null);
}
public UpdateRequestProcessor getInstance(SolrQueryRequest req,
SolrQueryResponse rsp, UpdateRequestProcessor next)
{
KeepIndexedDateProcessor p = new KeepIndexedDateProcessor(next);
p.associateData(data);
return p;
}
}
class KeepIndexedDateProcessor extends UpdateRequestProcessor
{
DataClassIWantToInstantiateOnce data;
public KeepIndexedDateProcessor( UpdateRequestProcessor next) {
super( next );
}
public void associateData(Data d) { data = d; }
@Override
public void processAdd(AddUpdateCommand cmd) throws IOException {
SolrInputDocument doc = cmd.getSolrInputDocument();
String id = doc.getFieldValue( "id" ).toString();
if( id != null ) {
SolrQuery getIndexedDatesOfId = new SolrQuery();
getIndexedDatesOfId.setQuery("id:"+id);
getIndexedDatesOfId.setFields("indexed");
getIndexedDatesOfId.setRows(1);
QueryResponse qr = data.query(getIndexedDatesOfId);
if(qr != null) {
if(qr.getResults() != null) {
if(qr.getResults().size()>0) {
Date thisIndexed =
(Date)qr.getResults().get(0).getFieldValue("indexed");
doc.setField("indexed", thisIndexed);
}
}
}
}
// pass it up the chain
super.processAdd(cmd);
}
}
