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path: root/src/mongo/rpc/metadata/egress_metadata_hook_list.cpp
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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/rpc/metadata/egress_metadata_hook_list.h"

#include "mongo/base/status.h"
#include "mongo/bson/bsonobjbuilder.h"

namespace mongo {
namespace rpc {

void EgressMetadataHookList::addHook(std::unique_ptr<EgressMetadataHook>&& newHook) {
    _hooks.emplace_back(std::forward<std::unique_ptr<EgressMetadataHook>>(newHook));
}

Status EgressMetadataHookList::writeRequestMetadata(OperationContext* opCtx,
                                                    BSONObjBuilder* metadataBob) {
    for (auto&& hook : _hooks) {
        auto status = hook->writeRequestMetadata(opCtx, metadataBob);
        if (!status.isOK()) {
            return status;
        }
    }

    return Status::OK();
}

Status EgressMetadataHookList::readReplyMetadata(OperationContext* opCtx,
                                                 StringData replySource,
                                                 const BSONObj& metadataObj) {
    for (auto&& hook : _hooks) {
        auto status = hook->readReplyMetadata(opCtx, replySource, metadataObj);
        if (!status.isOK()) {
            return status;
        }
    }

    return Status::OK();
}

}  // namespace rpc
}  // namespace mongo