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/*
* This file is part of rasdaman community.
*
* Rasdaman community is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Rasdaman community 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
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with rasdaman community.  If not, see <http://www.gnu.org/licenses/>.
*
* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
rasdaman GmbH.
*
* For more information please see <http://www.rasdaman.org>
* or contact Peter Baumann via <baumann@rasdaman.com>.
*/
/*************************************************************
 *
 *
 * PURPOSE:
 * The interface used by the file storage modules. 
 *
 *
 * COMMENTS:
 *
 ************************************************************/

#ifndef _SIMPLEFILESTORAGE_HH_
#define _SIMPLEFILESTORAGE_HH_

#include <vector>
#include <string>
#include "ifilestorage.hh"

class SimpleFileStorage : public IFileStorage
{
	public:
                SimpleFileStorage(const std::string& storage_path) throw (r_Error);
		// Update the content of a blob. The blob should exist already.
		void update(const char* data, r_Bytes size, int BlobId) throw (r_Error);
		// Store the content of a new blob.
		virtual void insert(const char* data, r_Bytes size, int BlobId) throw (r_Error);
		// Retrive the content of a previously stored blob
		virtual void retrieve(int BlobId, char** data, r_Bytes* size) throw (r_Error);
		// Delete a previously stored blob.
		virtual void remove(int BlobId) throw (r_Error);
		
		virtual ~SimpleFileStorage();
	private:
		// Given on BlobId will return the path where the blob should be stored.
		// It's returned as a vector so that other functions can iterate trough it and check
		// or create the directories on each level.
		void getPath(int BlobId, std::vector<std::string>* path);
		// Similar to the one above but returns the agregated path
		void getPath(int BlobId, std::string* path);
		std::string root_path;

};  // class SimpleFileStorage

#endif  // _SIMPLEFILESTORAGE_HH_