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/******************************************************************************
*
* Purpose: Declaration of the MetadataSegment class.
*
* This class is used to manage access to the SYS METADATA segment. This
* segment holds all the metadata for objects in the PCIDSK file.
*
* This class is closely partnered with the MetadataSet class.
*
******************************************************************************
* Copyright (c) 2009
* PCI Geomatics, 50 West Wilmot Street, Richmond Hill, Ont, Canada
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
****************************************************************************/
#ifndef __INCLUDE_SEGMENT_METADATASEGMENT_H
#define __INCLUDE_SEGMENT_METADATASEGMENT_H
#include "pcidsk_buffer.h"
#include "segment/cpcidsksegment.h"
#include <map>
#include <string>
namespace PCIDSK
{
/************************************************************************/
/* MetadataSegment */
/************************************************************************/
class MetadataSegment : virtual public CPCIDSKSegment
{
public:
MetadataSegment( PCIDSKFile *file, int segment,
const char *segment_pointer );
virtual ~MetadataSegment();
void FetchMetadata( const char *group, int id,
std::map<std::string,std::string> &md_set );
void SetMetadataValue( const char *group, int id,
const std::string& key, const std::string& value );
void Synchronize();
private:
bool loaded;
void Load();
void Save();
PCIDSKBuffer seg_data;
std::map<std::string,std::string> update_list;
};
} // end namespace PCIDSK
#endif // __INCLUDE_SEGMENT_METADATASEGMENT_H
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