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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.
*/
#pragma once
#include <iosfwd>
#include <string>
#include "mongo/base/string_data.h"
namespace mongo::logv2 {
// clang-format off
/**
* id: The enum identifier for the LogComponent.
* val: (empty except for kDefault) an expression used to assign value to the enum.
* shortName: its short name, used in component related server options.
* logName: The key that appears in log the "c" field. Should fit into 8 columns, as
* we pad the `c` field in json logs to 8 columns.
* parent: Components are arranged in a hierarchy for the purposes of log filtering. The
* dottedName that is used to configure log filtering is a parent-recursive "."-join
* of shortName strings.
*/
#define MONGO_EXPAND_LOGV2_COMPONENT(X) \
/* (id, val , shortName , logName , parent) */ \
X(kDefault, = 0 , "default" , "-" , kNumLogComponents) \
X(kAccessControl, , "accessControl" , "ACCESS" , kDefault) \
X(kCommand, , "command" , "COMMAND" , kDefault) \
X(kControl, , "control" , "CONTROL" , kDefault) \
X(kExecutor, , "executor" , "EXECUTOR", kDefault) \
X(kGeo, , "geo" , "GEO" , kDefault) \
X(kIndex, , "index" , "INDEX" , kDefault) \
X(kNetwork, , "network" , "NETWORK" , kDefault) \
X(kQuery, , "query" , "QUERY" , kDefault) \
X(kReplication, , "replication" , "REPL" , kDefault) \
X(kReplicationElection, , "election" , "ELECTION", kReplication) \
X(kReplicationHeartbeats, , "heartbeats" , "REPL_HB" , kReplication) \
X(kReplicationInitialSync, , "initialSync" , "INITSYNC", kReplication) \
X(kReplicationRollback, , "rollback" , "ROLLBACK", kReplication) \
X(kSharding, , "sharding" , "SHARDING", kDefault) \
X(kShardingRangeDeleter, , "rangeDeleter" , "RDELETER", kSharding) \
X(kShardingCatalogRefresh, , "shardingCatalogRefresh", "SH_REFR" , kSharding) \
X(kShardingMigration, , "migration" , "MIGRATE" , kSharding) \
X(kResharding, , "reshard" , "RESHARD" , kSharding) \
X(kShardMigrationPerf, , "migrationPerf" , "MIG_PERF", kSharding) \
X(kStorage, , "storage" , "STORAGE" , kDefault) \
X(kStorageRecovery, , "recovery" , "RECOVERY", kStorage) \
X(kJournal, , "journal" , "JOURNAL" , kStorage) \
X(kWrite, , "write" , "WRITE" , kDefault) \
X(kFTDC, , "ftdc" , "FTDC" , kDefault) \
X(kASIO, , "asio" , "ASIO" , kNetwork) \
X(kBridge, , "bridge" , "BRIDGE" , kNetwork) \
X(kTracking, , "tracking" , "TRACKING", kDefault) \
X(kTransaction, , "transaction" , "TXN" , kDefault) \
X(kTenantMigration, , "tenantMigration" , "TENANT_M", kDefault) \
X(kConnectionPool, , "connectionPool" , "CONNPOOL", kNetwork) \
X(kTest, , "test" , "TEST" , kDefault) \
X(kNumLogComponents, , "total" , "TOTAL" , kNumLogComponents) \
/**/
// clang-format on
/**
* Log components.
* Debug messages logged using the LOG() or MONGO_LOG_COMPONENT().
* Macros may be associated with one or more log components.
*/
class LogComponent {
public:
enum Value {
// clang-format off
/** Placeholder for using the component set by the MONGO_LOGV2_DEFAULT_COMPONENT macro */
kAutomaticDetermination = -1,
#define X_(id, val, shortName, logName, parent) id val,
MONGO_EXPAND_LOGV2_COMPONENT(X_)
#undef X_
// clang-format on
};
/* implicit */
constexpr LogComponent(Value value) : _value(value) {}
constexpr operator Value() const {
return _value;
}
/**
* Returns parent component.
* Returns kNumComponents if parent component is not defined (for kDefault or
* kNumLogComponents).
*/
LogComponent parent() const;
/**
* Returns short name as a StringData.
*/
StringData toStringData() const;
/**
* Returns short name of log component.
* Used to generate server parameter names in the format "logLevel_<component short name>".
*/
std::string getShortName() const;
/**
* Returns dotted name of log component - short name prefixed by dot-separated names of
* ancestors.
* Used to generate command line and config file option names.
*/
std::string getDottedName() const;
/**
* Returns name suitable for inclusion in formatted log message.
* This is derived from upper-casing the short name with some padding to
* fit into a fixed length field.
*/
StringData getNameForLog() const;
private:
Value _value;
};
std::ostream& operator<<(std::ostream& os, LogComponent component);
} // namespace mongo::logv2
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