mirror of https://gitee.com/bigwinds/arangodb
126 lines
4.9 KiB
C++
126 lines
4.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2019 ArangoDB GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Kaveh Vahedipour
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_HOTBACKUP_COMMON_H
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#define ARANGOD_HOTBACKUP_COMMON_H 1
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#include "Cluster/ResultT.h"
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#include <velocypack/Builder.h>
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#include <velocypack/Slice.h>
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#include <velocypack/velocypack-aliases.h>
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#include "Basics/VelocyPackHelper.h"
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#include "Cluster/ServerState.h"
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namespace arangodb {
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constexpr char const* BAD_PARAMS_CREATE = "backup payload must be an object "
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"defining optional string attribute 'label' and/or optional floating point "
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"parameter 'timeout' in seconds" ;
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////////////////////////////////////////////////////////////////////////////////
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/// @brief Struct containing meta data for backups
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////////////////////////////////////////////////////////////////////////////////
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struct BackupMeta {
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std::string _id;
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std::string _version;
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std::string _datetime;
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size_t _sizeInBytes;
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size_t _nrFiles;
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unsigned int _nrDBServers;
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std::string _serverId;
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bool _potentiallyInconsistent;
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bool _isAvailable;
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unsigned int _nrPiecesPresent;
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static constexpr const char *ID = "id";
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static constexpr const char *VERSION = "version";
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static constexpr const char *DATETIME = "datetime";
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static constexpr const char *SIZEINBYTES = "sizeInBytes";
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static constexpr const char *NRFILES = "nrFiles";
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static constexpr const char *NRDBSERVERS = "nrDBServers";
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static constexpr const char *SERVERID = "serverId";
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static constexpr const char *POTENTIALLYINCONSISTENT = "potentiallyInconsistent";
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static constexpr const char *AVAILABLE = "available";
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static constexpr const char *NRPIECESPRESENT = "nrPiecesPresent";
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void toVelocyPack(VPackBuilder &builder) const {
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{
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VPackObjectBuilder ob(&builder);
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builder.add(ID, VPackValue(_id));
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builder.add(VERSION, VPackValue(_version));
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builder.add(DATETIME, VPackValue(_datetime));
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builder.add(SIZEINBYTES, VPackValue(_sizeInBytes));
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builder.add(NRFILES, VPackValue(_nrFiles));
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builder.add(NRDBSERVERS, VPackValue(_nrDBServers));
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if (ServerState::instance()->isDBServer()) {
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builder.add(SERVERID, VPackValue(_serverId));
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}
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if (ServerState::instance()->isCoordinator() || ServerState::instance()->isSingleServer()) {
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builder.add(AVAILABLE, VPackValue(_isAvailable));
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builder.add(NRPIECESPRESENT, VPackValue(_nrPiecesPresent));
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}
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builder.add(POTENTIALLYINCONSISTENT, VPackValue(_potentiallyInconsistent));
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}
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}
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static ResultT<BackupMeta> fromSlice(VPackSlice const& slice) {
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try {
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BackupMeta meta;
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meta._id = slice.get(ID).copyString();
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meta._version = slice.get(VERSION).copyString();
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meta._datetime = slice.get(DATETIME).copyString();
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meta._sizeInBytes = basics::VelocyPackHelper::getNumericValue<size_t>(
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slice, SIZEINBYTES, 0);
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meta._nrFiles = basics::VelocyPackHelper::getNumericValue<size_t>(
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slice, NRFILES, 0);
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meta._nrDBServers = basics::VelocyPackHelper::getNumericValue<unsigned int>(
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slice, NRDBSERVERS, 1);
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meta._serverId = basics::VelocyPackHelper::getStringValue(slice, SERVERID, "");
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meta._potentiallyInconsistent = basics::VelocyPackHelper::getBooleanValue(slice, POTENTIALLYINCONSISTENT, false);
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meta._isAvailable = basics::VelocyPackHelper::getBooleanValue(slice, AVAILABLE, true);
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meta._nrPiecesPresent = basics::VelocyPackHelper::getNumericValue<unsigned int>(
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slice, NRPIECESPRESENT, 1);
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return meta;
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} catch (std::exception const& e) {
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return ResultT<BackupMeta>::error(TRI_ERROR_BAD_PARAMETER, e.what());
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}
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}
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BackupMeta(std::string const& id, std::string const& version, std::string const& datetime, size_t sizeInBytes, size_t nrFiles, unsigned int nrDBServers, std::string const& serverId, bool potentiallyInconsistent) :
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_id(id), _version(version), _datetime(datetime),
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_sizeInBytes(sizeInBytes), _nrFiles(nrFiles), _nrDBServers(nrDBServers),
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_serverId(serverId), _potentiallyInconsistent(potentiallyInconsistent),_isAvailable(true), _nrPiecesPresent(1) {}
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private:
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BackupMeta() {}
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};
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//std::ostream& operator<<(std::ostream& os, const BackupMeta& bm);
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}
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#endif
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