Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  SXF Translator
       4             :  * Purpose:  Definition of classes for OGR SXF driver.
       5             :  * Author:   Ben Ahmed Daho Ali, bidandou(at)yahoo(dot)fr
       6             :  *           Dmitry Baryshnikov, polimax@mail.ru
       7             :  *
       8             :  ******************************************************************************
       9             :  * Copyright (c) 2011, Ben Ahmed Daho Ali
      10             :  * Copyright (c) 2013, NextGIS
      11             :  * Copyright (c) 2014, Even Rouault <even dot rouault at spatialys.com>
      12             :  *
      13             :  * Permission is hereby granted, free of charge, to any person obtaining a
      14             :  * copy of this software and associated documentation files (the "Software"),
      15             :  * to deal in the Software without restriction, including without limitation
      16             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      17             :  * and/or sell copies of the Software, and to permit persons to whom the
      18             :  * Software is furnished to do so, subject to the following conditions:
      19             :  *
      20             :  * The above copyright notice and this permission notice shall be included
      21             :  * in all copies or substantial portions of the Software.
      22             :  *
      23             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      24             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      25             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      26             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      27             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      28             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      29             :  * DEALINGS IN THE SOFTWARE.
      30             :  ****************************************************************************/
      31             : 
      32             : #include "cpl_conv.h"
      33             : #include "ogr_sxf.h"
      34             : 
      35             : extern "C" void RegisterOGRSXF();
      36             : 
      37             : /************************************************************************/
      38             : /*                       ~OGRSXFDriver()                         */
      39             : /************************************************************************/
      40             : 
      41        1698 : OGRSXFDriver::~OGRSXFDriver()
      42             : {
      43        1698 : }
      44             : 
      45             : /************************************************************************/
      46             : /*                                Open()                                */
      47             : /************************************************************************/
      48             : 
      49           6 : GDALDataset *OGRSXFDriver::Open(GDALOpenInfo *poOpenInfo)
      50             : 
      51             : {
      52             :     /* -------------------------------------------------------------------- */
      53             :     /*      Determine what sort of object this is.                          */
      54             :     /* -------------------------------------------------------------------- */
      55             : 
      56             :     VSIStatBufL sStatBuf;
      57           6 :     if (!EQUAL(CPLGetExtension(poOpenInfo->pszFilename), "sxf") ||
      58          12 :         VSIStatL(poOpenInfo->pszFilename, &sStatBuf) != 0 ||
      59           6 :         !VSI_ISREG(sStatBuf.st_mode))
      60           0 :         return nullptr;
      61             : 
      62           6 :     OGRSXFDataSource *poDS = new OGRSXFDataSource();
      63             : 
      64           6 :     if (!poDS->Open(poOpenInfo->pszFilename, poOpenInfo->eAccess == GA_Update,
      65           6 :                     poOpenInfo->papszOpenOptions))
      66             :     {
      67           1 :         delete poDS;
      68           1 :         poDS = nullptr;
      69             :     }
      70             : 
      71           6 :     return poDS;
      72             : }
      73             : 
      74             : /************************************************************************/
      75             : /*                              Identify()                              */
      76             : /************************************************************************/
      77             : 
      78       42010 : int OGRSXFDriver::Identify(GDALOpenInfo *poOpenInfo)
      79             : {
      80       42010 :     if (!EQUAL(CPLGetExtension(poOpenInfo->pszFilename), "sxf") ||
      81       42010 :         !poOpenInfo->bStatOK || poOpenInfo->bIsDirectory)
      82             :     {
      83       42004 :         return GDAL_IDENTIFY_FALSE;
      84             :     }
      85             : 
      86           6 :     if (poOpenInfo->nHeaderBytes < 4)
      87             :     {
      88           0 :         return GDAL_IDENTIFY_UNKNOWN;
      89             :     }
      90             : 
      91           6 :     if (0 != memcmp(poOpenInfo->pabyHeader, "SXF", 3))
      92             :     {
      93           0 :         return GDAL_IDENTIFY_FALSE;
      94             :     }
      95             : 
      96           6 :     return GDAL_IDENTIFY_TRUE;
      97             : }
      98             : 
      99             : /************************************************************************/
     100             : /*                           DeleteDataSource()                         */
     101             : /************************************************************************/
     102             : 
     103           0 : CPLErr OGRSXFDriver::DeleteDataSource(const char *pszName)
     104             : {
     105             :     // TODO: add more extensions if aplicable
     106             :     static const char *const apszExtensions[] = {"szf", "rsc", "SZF", "RSC",
     107             :                                                  nullptr};
     108             : 
     109             :     VSIStatBufL sStatBuf;
     110           0 :     if (VSIStatL(pszName, &sStatBuf) != 0)
     111             :     {
     112           0 :         CPLError(CE_Failure, CPLE_AppDefined,
     113             :                  "%s does not appear to be a valid sxf file.", pszName);
     114             : 
     115           0 :         return CE_Failure;
     116             :     }
     117             : 
     118           0 :     for (int iExt = 0; apszExtensions[iExt] != nullptr; iExt++)
     119             :     {
     120           0 :         const char *pszFile = CPLResetExtension(pszName, apszExtensions[iExt]);
     121           0 :         if (VSIStatL(pszFile, &sStatBuf) == 0)
     122           0 :             VSIUnlink(pszFile);
     123             :     }
     124             : 
     125           0 :     return CE_None;
     126             : }
     127             : 
     128             : /************************************************************************/
     129             : /*                        RegisterOGRSXF()                       */
     130             : /************************************************************************/
     131        1509 : void RegisterOGRSXF()
     132             : {
     133        1509 :     if (GDALGetDriverByName("SXF") != nullptr)
     134         295 :         return;
     135             : 
     136        1214 :     OGRSXFDriver *poDriver = new OGRSXFDriver;
     137             : 
     138        1214 :     poDriver->SetDescription("SXF");
     139        1214 :     poDriver->SetMetadataItem(GDAL_DCAP_VECTOR, "YES");
     140        1214 :     poDriver->SetMetadataItem(GDAL_DMD_LONGNAME, "Storage and eXchange Format");
     141        1214 :     poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/vector/sxf.html");
     142        1214 :     poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, "sxf");
     143        1214 :     poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES");
     144        1214 :     poDriver->SetMetadataItem(GDAL_DCAP_Z_GEOMETRIES, "YES");
     145        1214 :     poDriver->SetMetadataItem(GDAL_DMD_SUPPORTED_SQL_DIALECTS, "OGRSQL SQLITE");
     146        1214 :     poDriver->SetMetadataItem(
     147             :         GDAL_DMD_OPENOPTIONLIST,
     148             :         "<OpenOptionList>"
     149             :         "  <Option name='SXF_LAYER_FULLNAME' type='string' description='Use "
     150             :         "long layer names' default='NO'/>"
     151             :         "  <Option name='SXF_RSC_FILENAME' type='string' description='RSC file "
     152             :         "name' default=''/>"
     153             :         "  <Option name='SXF_SET_VERTCS' type='string' description='Layers "
     154             :         "spatial reference will include vertical coordinate system description "
     155             :         "if exist' default='NO'/>"
     156        1214 :         "</OpenOptionList>");
     157             : 
     158        1214 :     poDriver->pfnOpen = OGRSXFDriver::Open;
     159        1214 :     poDriver->pfnDelete = OGRSXFDriver::DeleteDataSource;
     160        1214 :     poDriver->pfnIdentify = OGRSXFDriver::Identify;
     161             : 
     162        1214 :     GetGDALDriverManager()->RegisterDriver(poDriver);
     163             : }