Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  TIGER/Line Translator
       4             :  * Purpose:  Implements OGRTigerDriver
       5             :  * Author:   Frank Warmerdam, warmerdam@pobox.com
       6             :  *
       7             :  ******************************************************************************
       8             :  * Copyright (c) 1999, Frank Warmerdam
       9             :  *
      10             :  * Permission is hereby granted, free of charge, to any person obtaining a
      11             :  * copy of this software and associated documentation files (the "Software"),
      12             :  * to deal in the Software without restriction, including without limitation
      13             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      14             :  * and/or sell copies of the Software, and to permit persons to whom the
      15             :  * Software is furnished to do so, subject to the following conditions:
      16             :  *
      17             :  * The above copyright notice and this permission notice shall be included
      18             :  * in all copies or substantial portions of the Software.
      19             :  *
      20             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      21             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      22             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      23             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      24             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      25             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      26             :  * DEALINGS IN THE SOFTWARE.
      27             :  ****************************************************************************/
      28             : 
      29             : #include "ogr_tiger.h"
      30             : #include "cpl_conv.h"
      31             : 
      32             : /************************************************************************/
      33             : /*                                Open()                                */
      34             : /************************************************************************/
      35             : 
      36       20651 : static GDALDataset *OGRTigerDriverOpen(GDALOpenInfo *poOpenInfo)
      37             : 
      38             : {
      39       20651 :     if (!poOpenInfo->bStatOK)
      40       19698 :         return nullptr;
      41         953 :     char **papszSiblingFiles = poOpenInfo->GetSiblingFiles();
      42         953 :     if (papszSiblingFiles != nullptr)
      43             :     {
      44         495 :         bool bFoundCompatibleFile = false;
      45       19248 :         for (int i = 0; papszSiblingFiles[i] != nullptr; i++)
      46             :         {
      47       18765 :             int nLen = (int)strlen(papszSiblingFiles[i]);
      48       18765 :             if (nLen > 4 && papszSiblingFiles[i][nLen - 4] == '.' &&
      49       12822 :                 papszSiblingFiles[i][nLen - 1] == '1')
      50             :             {
      51          12 :                 bFoundCompatibleFile = true;
      52          12 :                 break;
      53             :             }
      54             :         }
      55         495 :         if (!bFoundCompatibleFile)
      56         483 :             return nullptr;
      57             :     }
      58             : 
      59         470 :     OGRTigerDataSource *poDS = new OGRTigerDataSource;
      60             : 
      61         470 :     if (!poDS->Open(poOpenInfo->pszFilename, TRUE))
      62             :     {
      63         470 :         delete poDS;
      64         470 :         poDS = nullptr;
      65             :     }
      66             : 
      67         470 :     if (poDS != nullptr && poOpenInfo->eAccess == GA_Update)
      68             :     {
      69           0 :         CPLError(CE_Failure, CPLE_OpenFailed,
      70             :                  "Tiger Driver doesn't support update.");
      71           0 :         delete poDS;
      72           0 :         poDS = nullptr;
      73             :     }
      74             : 
      75         470 :     return poDS;
      76             : }
      77             : 
      78             : /************************************************************************/
      79             : /*                           RegisterOGRTiger()                         */
      80             : /************************************************************************/
      81             : 
      82        1512 : void RegisterOGRTiger()
      83             : 
      84             : {
      85        1512 :     if (GDALGetDriverByName("TIGER") != nullptr)
      86         295 :         return;
      87             : 
      88        1217 :     GDALDriver *poDriver = new GDALDriver();
      89             : 
      90        1217 :     poDriver->SetDescription("TIGER");
      91        1217 :     poDriver->SetMetadataItem(GDAL_DCAP_VECTOR, "YES");
      92        1217 :     poDriver->SetMetadataItem(GDAL_DMD_LONGNAME, "U.S. Census TIGER/Line");
      93        1217 :     poDriver->SetMetadataItem(GDAL_DMD_HELPTOPIC, "drivers/vector/tiger.html");
      94        1217 :     poDriver->SetMetadataItem(GDAL_DCAP_VIRTUALIO, "YES");
      95        1217 :     poDriver->SetMetadataItem(GDAL_DMD_SUPPORTED_SQL_DIALECTS, "OGRSQL SQLITE");
      96             : 
      97        1217 :     poDriver->pfnOpen = OGRTigerDriverOpen;
      98             : 
      99        1217 :     GetGDALDriverManager()->RegisterDriver(poDriver);
     100             : }