@Inject
public IndicesQueriesRegistry(
Settings settings,
Set<QueryParser> injectedQueryParsers,
NamedWriteableRegistry namedWriteableRegistry) {
super(settings);
Map<String, QueryParser<?>> queryParsers = new HashMap<>();
for (@SuppressWarnings("unchecked")
QueryParser<? extends QueryBuilder> queryParser : injectedQueryParsers) {
for (String name : queryParser.names()) {
queryParsers.put(name, queryParser);
}
@SuppressWarnings("unchecked")
NamedWriteable<? extends QueryBuilder> qb = queryParser.getBuilderPrototype();
namedWriteableRegistry.registerPrototype(QueryBuilder.class, qb);
}
// EmptyQueryBuilder is not registered as query parser but used internally.
// We need to register it with the NamedWriteableRegistry in order to serialize it
namedWriteableRegistry.registerPrototype(QueryBuilder.class, EmptyQueryBuilder.PROTOTYPE);
this.queryParsers = unmodifiableMap(queryParsers);
}
private void addQueryParser(Map<String, QueryParser> queryParsers, QueryParser queryParser) {
for (String name : queryParser.names()) {
queryParsers.put(name, queryParser);
}
}