EVOLUTION-MANAGER

Edit File: ogr_csv.h

/******************************************************************************
 * $Id: ogr_csv.h 36501 2016-11-25 14:09:24Z rouault $
 *
 * Project:  CSV Translator
 * Purpose:  Definition of classes for OGR .csv driver.
 * Author:   Frank Warmerdam, warmerdam@pobox.com
 *
 ******************************************************************************
 * Copyright (c) 2004,  Frank Warmerdam
 * Copyright (c) 2008-2013, Even Rouault <even dot rouault at mines-paris dot org>
 *
 * 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 OGR_CSV_H_INCLUDED
#define OGR_CSV_H_INCLUDED

#include "ogrsf_frmts.h"

typedef enum
{
    OGR_CSV_GEOM_NONE,
    OGR_CSV_GEOM_AS_WKT,
    OGR_CSV_GEOM_AS_SOME_GEOM_FORMAT,
    OGR_CSV_GEOM_AS_XYZ,
    OGR_CSV_GEOM_AS_XY,
    OGR_CSV_GEOM_AS_YX,
} OGRCSVGeometryFormat;

class OGRCSVDataSource;

char **OGRCSVReadParseLineL( VSILFILE * fp, char chDelimiter,
                             bool bDontHonourStrings = false,
                             bool bKeepLeadingAndClosingQuotes = false,
                             bool bMergeDelimiter = false );

typedef enum
{
    CREATE_FIELD_DO_NOTHING,
    CREATE_FIELD_PROCEED,
    CREATE_FIELD_ERROR
} OGRCSVCreateFieldAction;

void OGRCSVDriverRemoveFromMap(const char* pszName, GDALDataset* poDS);

/************************************************************************/
/*                             OGRCSVLayer                              */
/************************************************************************/

class OGRCSVLayer : public OGRLayer
{
    OGRFeatureDefn     *poFeatureDefn;

VSILFILE           *fpCSV;

int                 nNextFID;

bool                bHasFieldNames;

OGRFeature *        GetNextUnfilteredFeature();

bool                bNew;
    bool                bInWriteMode;
    bool                bUseCRLF;
    bool                bNeedRewindBeforeRead;
    OGRCSVGeometryFormat eGeometryFormat;

char*               pszFilename;
    bool                bCreateCSVT;
    bool                bWriteBOM;
    char                chDelimiter;

int                 nCSVFieldCount;
    int*                panGeomFieldIndex;
    bool                bFirstFeatureAppendedDuringSession;
    bool                bHiddenWKTColumn;

/*http://www.faa.gov/airports/airport_safety/airportdata_5010/menu/index.cfm specific */
    int                 iNfdcLongitudeS;
    int                 iNfdcLatitudeS;
    bool                bDontHonourStrings;

int                 iLongitudeField;
    int                 iLatitudeField;
    int                 iZField;
    CPLString           osXField;
    CPLString           osYField;
    CPLString           osZField;

bool                bIsEurostatTSV;
    int                 nEurostatDims;

GIntBig             nTotalFeatures;

char              **AutodetectFieldTypes(char** papszOpenOptions, int nFieldCount);

bool                bWarningBadTypeOrWidth;
    bool                bKeepSourceColumns;
    bool                bKeepGeomColumns;

bool                bMergeDelimiter;

bool                bEmptyStringNull;

char              **GetNextLineTokens();

static bool         Matches( const char* pszFieldName,
                                 char** papszPossibleNames );

public:
    OGRCSVLayer( const char *pszName, VSILFILE *fp, const char *pszFilename,
                 int bNew, int bInWriteMode, char chDelimiter );
    virtual ~OGRCSVLayer();

const char*         GetFilename() const { return pszFilename; }
    char                GetDelimiter() const { return chDelimiter; }
    bool                GetCRLF() const { return bUseCRLF; }
    bool                GetCreateCSVT() const { return bCreateCSVT; }
    bool                GetWriteBOM() const { return bWriteBOM; }
    OGRCSVGeometryFormat GetGeometryFormat() const { return eGeometryFormat; }
    bool                HasHiddenWKTColumn() const { return bHiddenWKTColumn; }
    GIntBig             GetTotalFeatureCount() const { return nTotalFeatures; }
    const CPLString&    GetXField() const { return osXField; }
    const CPLString&    GetYField() const { return osYField; }
    const CPLString&    GetZField() const { return osZField; }

void                BuildFeatureDefn( const char* pszNfdcGeomField = NULL,
                                          const char* pszGeonamesGeomFieldPrefix = NULL,
                                          char** papszOpenOptions = NULL );

void                ResetReading() override;
    OGRFeature *        GetNextFeature() override;
    virtual OGRFeature* GetFeature( GIntBig nFID ) override;

OGRFeatureDefn *    GetLayerDefn() override { return poFeatureDefn; }

int                 TestCapability( const char * ) override;

virtual OGRErr      CreateField( OGRFieldDefn *poField,
                                     int bApproxOK = TRUE ) override;

static OGRCSVCreateFieldAction PreCreateField( OGRFeatureDefn* poFeatureDefn,
                                                   OGRFieldDefn *poNewField,
                                                   int bApproxOK );
    virtual OGRErr      CreateGeomField( OGRGeomFieldDefn *poGeomField,
                                         int bApproxOK = TRUE ) override;

virtual OGRErr      ICreateFeature( OGRFeature *poFeature ) override;

void                SetCRLF( bool bNewValue );
    void                SetWriteGeometry(OGRwkbGeometryType eGType,
                                         OGRCSVGeometryFormat eGeometryFormat,
                                         const char* pszGeomCol = NULL);
    void                SetCreateCSVT( bool bCreateCSVT );
    void                SetWriteBOM( bool bWriteBOM );

virtual GIntBig     GetFeatureCount( int bForce = TRUE ) override;
    virtual OGRErr      SyncToDisk() override;

OGRErr              WriteHeader();
};

/************************************************************************/
/*                           OGRCSVDataSource                           */
/************************************************************************/

class OGRCSVDataSource : public OGRDataSource
{
    char                *pszName;

OGRLayer          **papoLayers;
    int                 nLayers;

bool                bUpdate;

CPLString           osDefaultCSVName;

bool                bEnableGeometryFields;

public:
                        OGRCSVDataSource();
                        virtual ~OGRCSVDataSource();

int                 Open( const char * pszFilename,
                              int bUpdate, int bForceAccept,
                              char** papszOpenOptions = NULL );
    bool                OpenTable( const char * pszFilename,
                                   char** papszOpenOptions,
                                   const char* pszNfdcRunwaysGeomField = NULL,
                                   const char* pszGeonamesGeomFieldPrefix = NULL );

const char          *GetName() override { return pszName; }

int                 GetLayerCount() override { return nLayers; }
    OGRLayer            *GetLayer( int ) override;

virtual OGRLayer   *ICreateLayer( const char *pszName,
                                     OGRSpatialReference *poSpatialRef = NULL,
                                     OGRwkbGeometryType eGType = wkbUnknown,
                                     char ** papszOptions = NULL ) override;

virtual OGRErr      DeleteLayer(int) override;

int                 TestCapability( const char * ) override;

void                CreateForSingleFile( const char* pszDirname,
                                             const char *pszFilename );

void                EnableGeometryFields() { bEnableGeometryFields = true; }

static CPLString    GetRealExtension(CPLString osFilename);
};

#endif /* ndef OGR_CSV_H_INCLUDED */