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/**
* Copyright (C) 2018-present MongoDB, Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the Server Side Public License, version 1,
* as published by MongoDB, Inc.
*
* 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
* Server Side Public License for more details.
*
* You should have received a copy of the Server Side Public License
* along with this program. If not, see
* <http://www.mongodb.com/licensing/server-side-public-license>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the Server Side Public License in all respects for
* all of the code used other than as permitted herein. If you modify file(s)
* with this exception, you may extend this exception to your version of the
* file(s), but you are not obligated to do so. If you do not wish to do so,
* delete this exception statement from your version. If you delete this
* exception statement from all source files in the program, then also delete
* it in the license file.
*/
#include "mongo/db/index_names.h"
#include "mongo/db/jsobj.h"
#include "mongo/util/string_map.h"
namespace mongo {
using std::string;
const string IndexNames::GEO_2D = "2d";
const string IndexNames::GEO_2DSPHERE = "2dsphere";
const string IndexNames::GEO_2DSPHERE_BUCKET = "2dsphere_bucket";
const string IndexNames::TEXT = "text";
const string IndexNames::HASHED = "hashed";
const string IndexNames::BTREE = "";
const string IndexNames::WILDCARD = "wildcard";
const string IndexNames::COLUMN = "columnstore";
const string IndexNames::ENCRYPTED_RANGE = "queryable_encrypted_range";
// We no longer support geo haystack indexes. We use this value to reject creating them.
const string IndexNames::GEO_HAYSTACK = "geoHaystack";
const StringMap<IndexType> kIndexNameToType = {
{IndexNames::GEO_2D, INDEX_2D},
{IndexNames::GEO_HAYSTACK, INDEX_HAYSTACK},
{IndexNames::GEO_2DSPHERE, INDEX_2DSPHERE},
{IndexNames::GEO_2DSPHERE_BUCKET, INDEX_2DSPHERE_BUCKET},
{IndexNames::TEXT, INDEX_TEXT},
{IndexNames::HASHED, INDEX_HASHED},
{IndexNames::COLUMN, INDEX_COLUMN},
{IndexNames::ENCRYPTED_RANGE, INDEX_ENCRYPTED_RANGE},
{IndexNames::WILDCARD, INDEX_WILDCARD},
};
// static
string IndexNames::findPluginName(const BSONObj& keyPattern) {
BSONObjIterator i(keyPattern);
string indexTypeStr = "";
while (i.more()) {
BSONElement e = i.next();
StringData fieldName(e.fieldNameStringData());
if (String == e.type()) {
indexTypeStr = e.String();
} else if (WildcardNames::isWildcardFieldName(fieldName)) {
if (keyPattern.firstElement().type() == String &&
keyPattern.firstElement().fieldNameStringData() == "columnstore"_sd) {
return IndexNames::COLUMN;
} else {
// Returns IndexNames::WILDCARD directly here because we rely on the caller to
// validate that wildcard indexes cannot compound with other special index type.
return IndexNames::WILDCARD;
}
} else
continue;
}
return indexTypeStr.empty() ? IndexNames::BTREE : indexTypeStr;
}
// static
bool IndexNames::isKnownName(const string& name) {
return (name == IndexNames::BTREE || kIndexNameToType.count(name));
}
// static
IndexType IndexNames::nameToType(StringData accessMethod) {
auto typeIt = kIndexNameToType.find(accessMethod);
if (typeIt == kIndexNameToType.end()) {
return INDEX_BTREE;
}
return typeIt->second;
}
} // namespace mongo
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