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/**
* Copyright (C) 2013 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "mongo/db/query/canonical_query.h"
#include "mongo/db/jsobj.h"
#include "mongo/db/matcher/expression_parser.h"
namespace mongo {
// static
Status CanonicalQuery::canonicalize(QueryMessage& qm, CanonicalQuery** out) {
auto_ptr<CanonicalQuery> cq(new CanonicalQuery());
// TODO: LiteParsedQuery throws. Fix it to return error.
cq->_pq.reset(new LiteParsedQuery(qm));
// TODO: If pq.hasOption(QueryOption_CursorTailable) make sure it's a capped collection and
// make sure the order(??) is $natural: 1.
// TODO: Do we want to do this too?:
//if ( pq.getFields() != NULL )
// pq.getFields()->validateQuery( query );
StatusWithMatchExpression swme = MatchExpressionParser::parse(cq->_pq->getFilter());
if (!swme.isOK()) {
return swme.getStatus();
}
cq->_root.reset(swme.getValue());
*out = cq.release();
return Status::OK();
}
Status CanonicalQuery::canonicalize(const string& ns, const BSONObj& query,
CanonicalQuery** out) {
auto_ptr<CanonicalQuery> cq(new CanonicalQuery());
// LiteParsedQuery saves the pointer to the NS that we provide it. It's not going to remain
// valid unless we cache it ourselves.
cq->_ns = ns;
cq->_pq.reset(new LiteParsedQuery(cq->_ns.c_str(), 0, 0, 0, query));
StatusWithMatchExpression swme = MatchExpressionParser::parse(cq->_pq->getFilter());
if (!swme.isOK()) { return swme.getStatus(); }
cq->_root.reset(swme.getValue());
*out = cq.release();
return Status::OK();
}
string CanonicalQuery::toString() const {
return "Tree: " + _root->toString();
}
} // namespace mongo
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