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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.
*/
#define MONGO_LOG_DEFAULT_COMPONENT ::mongo::logger::LogComponent::kControl
#include "mongo/base/status.h"
#include "mongo/db/jsobj.h"
#include "mongo/logv2/log.h"
#include "mongo/util/str.h"
#include <ostream>
#include <sstream>
namespace mongo {
Status::ErrorInfo::ErrorInfo(ErrorCodes::Error code,
StringData reason,
std::shared_ptr<const ErrorExtraInfo> extra)
: code(code), reason(reason.toString()), extra(std::move(extra)) {}
Status::ErrorInfo* Status::ErrorInfo::create(ErrorCodes::Error code,
StringData reason,
std::shared_ptr<const ErrorExtraInfo> extra) {
if (code == ErrorCodes::OK)
return nullptr;
if (extra) {
// The public API prevents getting in to this state.
invariant(ErrorCodes::shouldHaveExtraInfo(code));
} else if (ErrorCodes::shouldHaveExtraInfo(code)) {
// This is possible if code calls a 2-argument Status constructor with a code that should
// have extra info.
if (kDebugBuild) {
// Make it easier to find this issue by fatally failing in debug builds.
LOGV2_FATAL(23805, "Code {code} is supposed to have extra info", "code"_attr = code);
fassertFailed(40680);
}
// In release builds, replace the error code. This maintains the invariant that all Statuses
// for a code that is supposed to hold extra info hold correctly-typed extra info, without
// crashing the server.
return new ErrorInfo{ErrorCodes::Error(40671),
str::stream() << "Missing required extra info for error code " << code,
std::move(extra)};
}
return new ErrorInfo{code, reason, std::move(extra)};
}
Status::Status(ErrorCodes::Error code,
StringData reason,
std::shared_ptr<const ErrorExtraInfo> extra)
: _error(ErrorInfo::create(code, reason, std::move(extra))) {
ref(_error);
}
Status::Status(ErrorCodes::Error code, const std::string& reason) : Status(code, reason, nullptr) {}
Status::Status(ErrorCodes::Error code, const char* reason)
: Status(code, StringData(reason), nullptr) {}
Status::Status(ErrorCodes::Error code, StringData reason) : Status(code, reason, nullptr) {}
Status::Status(ErrorCodes::Error code, StringData reason, const BSONObj& extraInfoHolder)
: Status(OK()) {
if (auto parser = ErrorExtraInfo::parserFor(code)) {
try {
*this = Status(code, reason, parser(extraInfoHolder));
} catch (const DBException& ex) {
*this = ex.toStatus(str::stream() << "Error parsing extra info for " << code);
}
} else {
*this = Status(code, reason);
}
}
Status::Status(ErrorCodes::Error code, const str::stream& reason)
: Status(code, std::string(reason)) {}
Status Status::withReason(StringData newReason) const {
return isOK() ? OK() : Status(code(), newReason, _error->extra);
}
Status Status::withContext(StringData reasonPrefix) const {
return isOK() ? OK() : withReason(reasonPrefix + causedBy(reason()));
}
std::ostream& operator<<(std::ostream& os, const Status& status) {
return os << status.codeString() << " " << status.reason();
}
template <typename Allocator>
StringBuilderImpl<Allocator>& operator<<(StringBuilderImpl<Allocator>& sb, const Status& status) {
sb << status.codeString();
if (!status.isOK()) {
try {
if (auto extra = status.extraInfo()) {
BSONObjBuilder bob;
extra->serialize(&bob);
sb << bob.obj();
}
} catch (const DBException&) {
// This really shouldn't happen but it would be really annoying if it broke error
// logging in production.
if (kDebugBuild) {
LOGV2_FATAL(23806,
"Error serializing extra info for {status_code} in Status::toString()",
"status_code"_attr = status.code());
std::terminate();
}
}
sb << ": " << status.reason();
}
return sb;
}
template StringBuilder& operator<<(StringBuilder& sb, const Status& status);
std::string Status::toString() const {
StringBuilder sb;
sb << *this;
return sb.str();
}
void Status::serialize(BSONObjBuilder* builder) const {
if (isOK()) {
builder->append("code", code());
builder->append("codeName", ErrorCodes::errorString(code()));
} else {
serializeErrorToBSON(builder);
}
}
void Status::serializeErrorToBSON(BSONObjBuilder* builder) const {
invariant(!isOK());
builder->append("code", code());
builder->append("codeName", ErrorCodes::errorString(code()));
builder->append("errmsg", reason());
if (auto ei = extraInfo())
ei->serialize(builder);
}
} // namespace mongo
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