ObservedFile.h

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/*
 * ObservedFile.h
 *
 * Copyright (C) 2013 IBR, TU Braunschweig
 *
 * Written-by: David Goltzsche <goltzsch@ibr.cs.tu-bs.de>
 *             Johannes Morgenroth <morgenroth@ibr.cs.tu-bs.de>
 *
 * Licensed 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.
 *
 *  Created on: Sep 23, 2013
 */

#include "io/FileHash.h"
#include <ibrcommon/data/File.h>
#include <ibrcommon/refcnt_ptr.h>
#include <vector>
#include <set>
#include <string>

#ifndef OBSERVEDFILE_H_
#define OBSERVEDFILE_H_

namespace io
{
        class ObservedFile
        {
        public:
                ObservedFile(const ibrcommon::File &file);
                virtual ~ObservedFile();

                bool operator==(const ObservedFile &other) const;
                bool operator<(const ObservedFile &other) const;

                void update();

                size_t getStableCounter() const;

                const ibrcommon::File& getFile() const;

                void findFiles(std::set<ObservedFile> &files) const;

                const io::FileHash& getHash() const;

        private:
                io::FileHash __hash() const;

                static ibrcommon::File* __copy(const ibrcommon::File &file);

                refcnt_ptr<ibrcommon::File> _file;

                size_t _stable_counter;
                io::FileHash _last_hash;
        };
}

#endif /* OBSERVEDFILE_H_ */