@Override
protected ShardValidateQueryResponse shardOperation(ShardValidateQueryRequest request) {
IndexService indexService = indicesService.indexServiceSafe(request.shardId().getIndex());
IndexShard indexShard = indexService.getShard(request.shardId().id());
final QueryShardContext queryShardContext = indexService.newQueryShardContext();
queryShardContext.setTypes(request.types());
boolean valid;
String explanation = null;
String error = null;
Engine.Searcher searcher = indexShard.acquireSearcher("validate_query");
DefaultSearchContext searchContext =
new DefaultSearchContext(
0,
new ShardSearchLocalRequest(
request.types(), request.nowInMillis(), request.filteringAliases()),
null,
searcher,
indexService,
indexShard,
scriptService,
pageCacheRecycler,
bigArrays,
threadPool.estimatedTimeInMillisCounter(),
parseFieldMatcher,
SearchService.NO_TIMEOUT);
SearchContext.setCurrent(searchContext);
try {
searchContext.parsedQuery(queryShardContext.toQuery(request.query()));
searchContext.preProcess();
valid = true;
if (request.rewrite()) {
explanation = getRewrittenQuery(searcher.searcher(), searchContext.query());
} else if (request.explain()) {
explanation = searchContext.filteredQuery().query().toString();
}
} catch (QueryShardException | ParsingException e) {
valid = false;
error = e.getDetailedMessage();
} catch (AssertionError | IOException e) {
valid = false;
error = e.getMessage();
} finally {
searchContext.close();
SearchContext.removeCurrent();
}
return new ShardValidateQueryResponse(request.shardId(), valid, explanation, error);
}
