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/*
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
#ifndef QPID_LINEARSTORE_RECOVERYSTATE_H_
#define QPID_LINEARSTORE_RECOVERYSTATE_H_
#include <fstream>
#include <map>
#include <stdint.h>
#include <vector>
namespace qpid {
namespace qls_jrnl {
class RecoveryManager
{
private:
// Initial journal analysis data
std::vector<std::string> _journalFileList; ///< Journal file list
std::map<uint64_t, std::string> _fileNumberNameMap; ///< File number - name map
std::vector<uint32_t> _enqueueCountList; ///< Number enqueued records found for each file
bool _journalEmptyFlag; ///< Journal data files empty
std::streamoff _firstRecordOffset; ///< First record offset in ffid
std::streamoff _endOffset; ///< End offset (first byte past last record)
uint64_t _highestRecordId; ///< Highest rid found
bool _lastFileFullFlag; ///< Last file is full
// State for recovery of individual enqueued records
uint64_t _currentRid;
uint64_t _currentFileNumber;
std::string _currentFileName;
std::streamoff _fileSize;
std::streamoff _recordStart;
std::ifstream _inFileStream;
bool _readComplete;
public:
RecoveryManager();
virtual ~RecoveryManager();
std::string toString(const std::string& jid,
bool compact = true);
};
}} // namespace qpid::qls_jrnl
#endif // QPID_LINEARSTORE_RECOVERYSTATE_H_
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