/**
* Should be called before executing the main query and after all other parameters have been set.
*/
@Override
public void preProcess() {
if (scrollContext == null) {
long from = from() == -1 ? 0 : from();
long size = size() == -1 ? 10 : size();
long resultWindow = from + size;
// We need settingsService's view of the settings because its dynamic.
// indexService's isn't.
int maxResultWindow =
indexService
.getIndexSettings()
.getSettings()
.getAsInt(MAX_RESULT_WINDOW, Defaults.MAX_RESULT_WINDOW);
if (resultWindow > maxResultWindow) {
throw new QueryPhaseExecutionException(
this,
"Result window is too large, from + size must be less than or equal to: ["
+ maxResultWindow
+ "] but was ["
+ resultWindow
+ "]. See the scroll api for a more efficient way to request large data sets. "
+ "This limit can be set by changing the ["
+ DefaultSearchContext.MAX_RESULT_WINDOW
+ "] index level parameter.");
}
}
// initialize the filtering alias based on the provided filters
aliasFilter =
indexService.aliasFilter(indexShard.getQueryShardContext(), request.filteringAliases());
if (query() == null) {
parsedQuery(ParsedQuery.parsedMatchAllQuery());
}
if (queryBoost() != AbstractQueryBuilder.DEFAULT_BOOST) {
parsedQuery(
new ParsedQuery(
new FunctionScoreQuery(query(), new WeightFactorFunction(queryBoost)),
parsedQuery()));
}
Query searchFilter = searchFilter(types());
if (searchFilter != null) {
if (Queries.isConstantMatchAllQuery(query())) {
Query q = new ConstantScoreQuery(searchFilter);
if (query().getBoost() != AbstractQueryBuilder.DEFAULT_BOOST) {
q = new BoostQuery(q, query().getBoost());
}
parsedQuery(new ParsedQuery(q, parsedQuery()));
} else {
BooleanQuery filtered =
new BooleanQuery.Builder()
.add(query(), Occur.MUST)
.add(searchFilter, Occur.FILTER)
.build();
parsedQuery(new ParsedQuery(filtered, parsedQuery()));
}
}
try {
this.query = searcher().rewrite(this.query);
} catch (IOException e) {
throw new QueryPhaseExecutionException(this, "Failed to rewrite main query", e);
}
}
