private void doCompact(
LazyDocumentLoader documentLoader,
LazyCompactor compactor,
SolrQueryResponse rsp,
String tsId,
String q)
throws IOException, SyntaxError {
Query query = depProvider.parser(q).getQuery();
Iterable<Document> docs = documentLoader.load(query, SORT);
Iterable<CompactionResult> compactionResults = compactor.compact(docs);
List<Document> docsToDelete = new LinkedList<>();
List<SolrInputDocument> docsToAdd = new LinkedList<>();
compactionResults.forEach(
it -> {
docsToDelete.addAll(it.getInputDocuments());
docsToAdd.addAll(it.getOutputDocuments());
});
depProvider.solrUpdateService().add(docsToAdd);
depProvider.solrUpdateService().delete(docsToDelete);
rsp.add("timeseries " + tsId + " oldNumDocs:", docsToDelete.size());
rsp.add("timeseries " + tsId + " newNumDocs:", docsToAdd.size());
}
@Override
@SuppressWarnings("PMD.SignatureDeclareThrowsException")
public void handleRequestBody(SolrQueryRequest req, SolrQueryResponse rsp) throws Exception {
String joinKey = req.getParams().get(JOIN_KEY);
String fq = req.getParams().get(FQ);
int ppc = req.getParams().getInt(POINTS_PER_CHUNK, 100000);
int pageSize = req.getParams().getInt(PAGE_SIZE, 100);
depProvider.init(req, rsp);
LazyCompactor compactor = depProvider.compactor(ppc, req.getSearcher().getSchema());
LazyDocumentLoader documentLoader = depProvider.documentLoader(pageSize, req.getSearcher());
if (isBlank(joinKey) && isBlank(fq)) {
LOGGER.error("Neither join key nor filter query given.");
rsp.add(
"error",
join(
"",
"Neither join key nor filter query given.",
"Get help at https://chronix.gitbooks.io/chronix/content/document_compaction.html."));
return;
}
// no join key => compact documents matching fq
if (isBlank(joinKey)) {
compact(documentLoader, compactor, rsp, fq, fq);
depProvider.solrUpdateService().commit();
return;
}
// determine time series identified by joinKey
SolrFacetService facetService = depProvider.solrFacetService();
Query filterQuery = isBlank(fq) ? new MatchAllDocsQuery() : depProvider.parser(fq).getQuery();
List<NamedList<Object>> pivotResult = facetService.pivot(joinKey, filterQuery);
// compact each time series' constituting documents
facetService
.toTimeSeriesIds(pivotResult)
.parallelStream()
.forEach(
tsId ->
compact(documentLoader, compactor, rsp, tsId.toString(), and(tsId.toQuery(), fq)));
depProvider.solrUpdateService().commit();
}