gdal_mdreader.h

/******************************************************************************
 *
 * Project:  GDAL Core
 * Purpose:  Read metadata (mainly the remote sensing imagery) from files of
 *           different providers like DigitalGlobe, GeoEye etc.
 * Author:   Dmitry Baryshnikov, polimax@mail.ru
 *
 ******************************************************************************
 * Copyright (c) 2014-2015, NextGIS info@nextgis.ru
 *
 * SPDX-License-Identifier: MIT
 ****************************************************************************/
 
#ifndef GDAL_MDREADER_H_INCLUDED
#define GDAL_MDREADER_H_INCLUDED
 
#include "cpl_port.h"
#include "gdal_priv.h"
 
#include <map>
 
#define MD_DOMAIN_IMD "IMD"         
#define MD_DOMAIN_RPC "RPC"         
#define MD_DOMAIN_IMAGERY "IMAGERY" 
#define MD_DOMAIN_DEFAULT ""        
 
#define MD_NAME_ACQDATETIME                                                    \
    "ACQUISITIONDATETIME" 
#define MD_NAME_SATELLITE                                                      \
    "SATELLITEID" 
#define MD_NAME_CLOUDCOVER                                                     \
    "CLOUDCOVER" 
#define MD_NAME_MDTYPE                                                         \
    "METADATATYPE" 
 
#define MD_DATETIMEFORMAT "%Y-%m-%d %H:%M:%S" 
#define MD_CLOUDCOVER_NA "999" 

 
#define RPC_ERR_BIAS "ERR_BIAS"
#define RPC_ERR_RAND "ERR_RAND"
#define RPC_LINE_OFF "LINE_OFF"
#define RPC_SAMP_OFF "SAMP_OFF"
#define RPC_LAT_OFF "LAT_OFF"
#define RPC_LONG_OFF "LONG_OFF"
#define RPC_HEIGHT_OFF "HEIGHT_OFF"
#define RPC_LINE_SCALE "LINE_SCALE"
#define RPC_SAMP_SCALE "SAMP_SCALE"
#define RPC_LAT_SCALE "LAT_SCALE"
#define RPC_LONG_SCALE "LONG_SCALE"
#define RPC_HEIGHT_SCALE "HEIGHT_SCALE"
#define RPC_LINE_NUM_COEFF "LINE_NUM_COEFF"
#define RPC_LINE_DEN_COEFF "LINE_DEN_COEFF"
#define RPC_SAMP_NUM_COEFF "SAMP_NUM_COEFF"
#define RPC_SAMP_DEN_COEFF "SAMP_DEN_COEFF"
 
/* Optional */
#define RPC_MIN_LONG "MIN_LONG"
#define RPC_MIN_LAT "MIN_LAT"
#define RPC_MAX_LONG "MAX_LONG"
#define RPC_MAX_LAT "MAX_LAT"
 
/* Pleiades Neo nomenclature */
#define RPC_LAT_NUM_COEFF "LAT_NUM_COEFF"
#define RPC_LAT_DEN_COEFF "LAT_DEN_COEFF"
#define RPC_LON_NUM_COEFF "LON_NUM_COEFF"
#define RPC_LON_DEN_COEFF "LON_DEN_COEFF"

 
typedef enum
{
    MDR_None = 0x00000000,     
    MDR_DG = 0x00000001,       
    MDR_GE = 0x00000002,       
    MDR_OV = 0x00000004,       
    MDR_PLEIADES = 0x00000008, 
    MDR_SPOT = 0x00000010,     
    MDR_RDK1 = 0x00000020,     
    MDR_LS = 0x00000040,       
    MDR_RE = 0x00000080,       
    MDR_KOMPSAT = 0x00000100,  
    MDR_EROS = 0x00000200,     
    MDR_ALOS = 0x00000400,     
    MDR_ANY = MDR_DG | MDR_GE | MDR_OV | MDR_PLEIADES | MDR_SPOT | MDR_RDK1 |
              MDR_LS | MDR_RE | MDR_KOMPSAT | MDR_EROS |
              MDR_ALOS 
} MDReaders;

class CPL_DLL GDALMDReaderBase
{
 
    CPL_DISALLOW_COPY_ASSIGN(GDALMDReaderBase)
 
    static bool
    ReadXMLToListFirstPass(const CPLXMLNode *psNode,
                           std::map<std::string, int> &oMapCountKeysFull,
                           const std::string &osPrefixFull, int nDepth);
 
    char **ReadXMLToList(const CPLXMLNode *psNode, char **papszList,
                         const std::map<std::string, int> &oMapCountKeysFullRef,
                         std::map<std::string, int> &oMapCountKeysFull,
                         std::map<std::string, int> &oMapCountKeys,
                         const std::string &osPrefix,
                         const std::string &osPrefixFull);
 
  public:
    GDALMDReaderBase(const char *pszPath, CSLConstList papszSiblingFiles);
    virtual ~GDALMDReaderBase();

    virtual char **GetMetadataDomain(const char *pszDomain);
    virtual bool FillMetadata(GDALMultiDomainMetadata *poMDMD);
    virtual bool HasRequiredFiles() const = 0;
    virtual char **GetMetadataFiles() const = 0;
 
  protected:
    virtual void LoadMetadata();
    virtual GIntBig GetAcquisitionTimeFromString(const char *pszDateTime);
    virtual char **ReadXMLToList(CPLXMLNode *psNode, char **papszList,
                                 const char *pszName = "");
    virtual char **AddXMLNameValueToList(char **papszList, const char *pszName,
                                         const char *pszValue);
 
  protected:
    char **m_papszIMDMD = nullptr;
    char **m_papszRPCMD = nullptr;
    char **m_papszIMAGERYMD = nullptr;
    char **m_papszDEFAULTMD = nullptr;
    bool m_bIsMetadataLoad = false;
};

class CPL_DLL GDALMDReaderManager
{
 
    CPL_DISALLOW_COPY_ASSIGN(GDALMDReaderManager)
 
  public:
    GDALMDReaderManager();
    virtual ~GDALMDReaderManager();

    virtual GDALMDReaderBase *GetReader(const char *pszPath,
                                        CSLConstList papszSiblingFiles,
                                        GUInt32 nType = MDR_ANY);
 
  protected:
    GDALMDReaderBase *m_pReader = nullptr;
};
 
// misc
CPLString CPLStrip(const CPLString &osString, const char cChar);
CPLString CPLStripQuotes(const CPLString &osString);
char **GDALLoadRPBFile(const CPLString &osFilePath);
char CPL_DLL **GDALLoadRPCFile(const CPLString &osFilePath);
char **GDALLoadIMDFile(const CPLString &osFilePath);
bool GDALCheckFileHeader(const CPLString &soFilePath, const char *pszTestString,
                         int nBufferSize = 256);
 
CPLErr GDALWriteRPBFile(const char *pszFilename, char **papszMD);
CPLErr CPL_DLL GDALWriteRPCTXTFile(const char *pszFilename, char **papszMD);
CPLErr GDALWriteIMDFile(const char *pszFilename, char **papszMD);
 
#endif  // GDAL_MDREADER_H_INCLUDED