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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/platform/basic.h"
#include "mongo/logv2/log_component.h"
#include "mongo/base/static_assert.h"
#include "mongo/util/assert_util.h"
namespace mongo {
namespace logv2 {
namespace {
struct {
LogComponent value;
StringData shortName;
StringData logName;
LogComponent parent;
} constexpr kTable[] = {
#define X_(id, val, shortName, logName, parent) \
{LogComponent::id, shortName##_sd, logName##_sd, LogComponent::parent},
MONGO_EXPAND_LOGV2_COMPONENT(X_)
#undef X_
};
// Children always come after parent component.
// This makes it unnecessary to compute children of each component
// when setting/clearing log severities in LogComponentSettings.
constexpr bool correctParentOrder(LogComponent id, LogComponent parent) {
using V = LogComponent::Value;
switch (V{id}) {
case LogComponent::kAutomaticDetermination:
case LogComponent::kDefault:
case LogComponent::kNumLogComponents:
return true;
default:
using I = std::underlying_type_t<V>;
return I{id} > I{parent};
}
}
#define X_(id, val, shortName, logName, parent) \
MONGO_STATIC_ASSERT(correctParentOrder(LogComponent::id, LogComponent::parent));
MONGO_EXPAND_LOGV2_COMPONENT(X_)
#undef X_
} // namespace
LogComponent LogComponent::parent() const {
return kTable[_value].parent;
}
StringData LogComponent::toStringData() const {
return kTable[_value].shortName;
}
StringData LogComponent::getNameForLog() const {
return kTable[_value].logName;
}
std::string LogComponent::getShortName() const {
return std::string{toStringData()};
}
namespace {
void _appendDottedName(LogComponent id, std::string* out) {
if (id.parent() != LogComponent::kDefault) {
_appendDottedName(id.parent(), out);
out->append(".");
}
StringData shortName = id.toStringData();
out->append(shortName.begin(), shortName.end());
}
} // namespace
std::string LogComponent::getDottedName() const {
if (*this == kDefault || *this == kNumLogComponents)
return std::string{toStringData()};
std::string out;
_appendDottedName(*this, &out);
return out;
}
std::ostream& operator<<(std::ostream& os, LogComponent component) {
return os << component.getNameForLog();
}
} // namespace logv2
} // namespace mongo
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