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/**
* Copyright (C) 2019-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.
*/
#pragma once
#include "mongo/bson/generator_extended_canonical_2_0_0.h"
namespace mongo {
class ExtendedRelaxedV200Generator : private ExtendedCanonicalV200Generator {
public:
// Use date with local timezone, otherwise UTC.
explicit ExtendedRelaxedV200Generator(bool localDate) : _localDate(localDate) {}
using ExtendedCanonicalV200Generator::writeBinData;
using ExtendedCanonicalV200Generator::writeBool;
using ExtendedCanonicalV200Generator::writeCode;
using ExtendedCanonicalV200Generator::writeCodeWithScope;
using ExtendedCanonicalV200Generator::writeDBRef;
using ExtendedCanonicalV200Generator::writeDecimal128;
using ExtendedCanonicalV200Generator::writeMaxKey;
using ExtendedCanonicalV200Generator::writeMinKey;
using ExtendedCanonicalV200Generator::writeNull;
using ExtendedCanonicalV200Generator::writeOID;
using ExtendedCanonicalV200Generator::writePadding;
using ExtendedCanonicalV200Generator::writeRegex;
using ExtendedCanonicalV200Generator::writeString;
using ExtendedCanonicalV200Generator::writeSymbol;
using ExtendedCanonicalV200Generator::writeTimestamp;
using ExtendedCanonicalV200Generator::writeUndefined;
void writeInt32(fmt::memory_buffer& buffer, int32_t val) const {
appendTo(buffer, fmt::format_int(val));
}
void writeInt64(fmt::memory_buffer& buffer, int64_t val) const {
appendTo(buffer, fmt::format_int(val));
}
void writeDouble(fmt::memory_buffer& buffer, double val) const {
if (val >= std::numeric_limits<double>::lowest() &&
val <= std::numeric_limits<double>::max())
format_to(std::back_inserter(buffer), FMT_COMPILE(R"({})"), val);
else {
ExtendedCanonicalV200Generator::writeDouble(buffer, val);
}
}
void writeDate(fmt::memory_buffer& buffer, Date_t val) const {
// The two cases in which we cannot convert Date_t::millis to an ISO Date string are
// when the date is too large to format (SERVER-13760), and when the date is before
// the epoch (SERVER-11273). Since Date_t internally stores millis as an unsigned
// long long, despite the fact that it is logically signed (SERVER-8573), this check
// handles both the case where Date_t::millis is too large, and the case where
// Date_t::millis is negative (before the epoch).
if (val.isFormattable()) {
format_to(std::back_inserter(buffer),
FMT_COMPILE(R"({{"$date":"{}"}})"),
StringData{DateStringBuffer{}.iso8601(val, _localDate)});
} else {
ExtendedCanonicalV200Generator::writeDate(buffer, val);
}
}
private:
bool _localDate;
};
} // namespace mongo
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