/**
* check if a given document, identified by url hash as document id exists
*
* @param id the url hash and document id
* @return the load date if any entry in solr exists, -1 otherwise
* @throws IOException
*/
@Override
public LoadTimeURL getLoadTimeURL(String id) throws IOException {
int responseCount = 0;
DocListSearcher docListSearcher = null;
try {
docListSearcher =
new DocListSearcher(
"{!cache=false raw f=" + CollectionSchema.id.getSolrFieldName() + "}" + id,
null,
0,
1,
CollectionSchema.id.getSolrFieldName(),
CollectionSchema.load_date_dt.getSolrFieldName());
responseCount = docListSearcher.response.size();
if (responseCount == 0) return null;
SolrIndexSearcher searcher = docListSearcher.request.getSearcher();
DocIterator iterator = docListSearcher.response.iterator();
// for (int i = 0; i < responseCount; i++) {
Document doc =
searcher.doc(iterator.nextDoc(), AbstractSolrConnector.SOLR_ID_and_LOAD_DATE_FIELDS);
if (doc == null) return null;
return AbstractSolrConnector.getLoadTimeURL(doc);
// }
} catch (Throwable e) {
ConcurrentLog.logException(e);
throw new IOException(e.getMessage());
} finally {
if (docListSearcher != null) docListSearcher.close();
}
}
public DocListSearcher(
final String querystring,
String sort,
final int offset,
final int count,
final String... fields) {
// construct query
final SolrQuery params =
AbstractSolrConnector.getSolrQuery(querystring, sort, offset, count, fields);
// query the server
this.request = EmbeddedSolrConnector.this.request(params);
SolrQueryResponse rsp = query(request);
NamedList<?> nl = rsp.getValues();
ResultContext resultContext = (ResultContext) nl.get("response");
if (resultContext == null)
log.warn("DocListSearcher: no response for query '" + querystring + "'");
this.response =
resultContext == null
? new DocSlice(0, 0, new int[0], new float[0], 0, 0.0f)
: resultContext.docs;
}