Line data    Source code

       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  GDAL/OGR Geography Network support (Geographic Network Model)
       4             :  * Purpose:  GNM generic driver.
       5             :  * Authors:  Mikhail Gusev (gusevmihs at gmail dot com)
       6             :  *           Dmitry Baryshnikov, polimax@mail.ru
       7             :  *
       8             :  ******************************************************************************
       9             :  * Copyright (c) 2014, Mikhail Gusev
      10             :  * Copyright (c) 2014-2015, NextGIS <info@nextgis.com>
      11             :  *
      12             :  * Permission is hereby granted, free of charge, to any person obtaining a
      13             :  * copy of this software and associated documentation files (the "Software"),
      14             :  * to deal in the Software without restriction, including without limitation
      15             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      16             :  * and/or sell copies of the Software, and to permit persons to whom the
      17             :  * Software is furnished to do so, subject to the following conditions:
      18             :  *
      19             :  * The above copyright notice and this permission notice shall be included
      20             :  * in all copies or substantial portions of the Software.
      21             :  *
      22             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      23             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      24             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      25             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      26             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      27             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      28             :  * DEALINGS IN THE SOFTWARE.
      29             :  ****************************************************************************/
      30             : 
      31             : #include "gnm_frmts.h"
      32             : #include "gnm_priv.h"
      33             : #include "gnmdb.h"
      34             : 
      35       49658 : static int GNMDBDriverIdentify(GDALOpenInfo *poOpenInfo)
      36             : 
      37             : {
      38       49658 :     if (!STARTS_WITH_CI(poOpenInfo->pszFilename, "PGB:") &&
      39       49658 :         !STARTS_WITH_CI(poOpenInfo->pszFilename, "PG:"))
      40       49658 :         return FALSE;
      41           0 :     if ((poOpenInfo->nOpenFlags & GDAL_OF_GNM) == 0)
      42           0 :         return FALSE;
      43             : 
      44             :     // TODO: do we need to open datasource end check tables/layer exist?
      45             : 
      46           0 :     auto poDriver = GetGDALDriverManager()->GetDriverByName("PostgreSQL");
      47           0 :     return poDriver && !poDriver->GetMetadataItem("MISSING_PLUGIN_FILENAME");
      48             : }
      49             : 
      50           0 : static GDALDataset *GNMDBDriverOpen(GDALOpenInfo *poOpenInfo)
      51             : 
      52             : {
      53           0 :     if (!GNMDBDriverIdentify(poOpenInfo))
      54           0 :         return nullptr;
      55             : 
      56           0 :     GNMDatabaseNetwork *poFN = new GNMDatabaseNetwork();
      57             : 
      58           0 :     if (poFN->Open(poOpenInfo) != CE_None)
      59             :     {
      60           0 :         delete poFN;
      61           0 :         poFN = nullptr;
      62             :     }
      63             : 
      64           0 :     return poFN;
      65             : }
      66             : 
      67             : static GDALDataset *
      68           0 : GNMDBDriverCreate(const char *pszName, CPL_UNUSED int nBands,
      69             :                   CPL_UNUSED int nXSize, CPL_UNUSED int nYSize,
      70             :                   CPL_UNUSED GDALDataType eDT, char **papszOptions)
      71             : {
      72           0 :     CPLAssert(nullptr != pszName);
      73           0 :     CPLDebug("GNM", "Attempt to create network at: %s", pszName);
      74             : 
      75           0 :     GNMDatabaseNetwork *poFN = new GNMDatabaseNetwork();
      76             : 
      77           0 :     if (poFN->Create(pszName, papszOptions) != CE_None)
      78             :     {
      79           0 :         delete poFN;
      80           0 :         poFN = nullptr;
      81             :     }
      82             : 
      83           0 :     return poFN;
      84             : }
      85             : 
      86           0 : static CPLErr GNMDBDriverDelete(const char *pszDataSource)
      87             : 
      88             : {
      89           0 :     GDALOpenInfo oOpenInfo(pszDataSource, GA_Update);
      90           0 :     GNMDatabaseNetwork *poFN = new GNMDatabaseNetwork();
      91             : 
      92           0 :     if (poFN->Open(&oOpenInfo) != CE_None)
      93             :     {
      94           0 :         delete poFN;
      95           0 :         poFN = nullptr;
      96             : 
      97           0 :         return CE_Failure;
      98             :     }
      99             : 
     100           0 :     return poFN->Delete();
     101             : }
     102             : 
     103        1935 : void RegisterGNMDatabase()
     104             : {
     105        1935 :     if (GDALGetDriverByName("GNMDatabase") == nullptr)
     106             :     {
     107        1653 :         GDALDriver *poDriver = new GDALDriver();
     108             : 
     109        1653 :         poDriver->SetDescription("GNMDatabase");
     110        1653 :         poDriver->SetMetadataItem(GDAL_DCAP_GNM, "YES");
     111        1653 :         poDriver->SetMetadataItem(GDAL_DMD_LONGNAME,
     112             :                                   "Geographic Network generic DB based "
     113        1653 :                                   "model");
     114             : 
     115        1653 :         poDriver->SetMetadataItem(
     116             :             GDAL_DMD_CREATIONOPTIONLIST,
     117             :             CPLSPrintf(
     118             :                 "<CreationOptionList>"
     119             :                 "  <Option name='%s' type='string' description='The network "
     120             :                 "name. Also it will be a folder name, so the limits for folder "
     121             :                 "name distribute on network name'/>"
     122             :                 "  <Option name='%s' type='string' description='The network "
     123             :                 "description. Any text describes the network'/>"
     124             :                 "  <Option name='%s' type='string' description='The network "
     125             :                 "Spatial reference. All network features will reproject to "
     126             :                 "this spatial reference. May be a WKT text or EPSG code'/>"
     127             :                 "  <Option name='FORMAT' type='string' description='The OGR "
     128             :                 "format to store network data.'/>"
     129             :                 "  <Option name='OVERWRITE' type='boolean' "
     130             :                 "description='Overwrite exist network or not' default='NO'/>"
     131             :                 "</CreationOptionList>",
     132        1653 :                 GNM_MD_NAME, GNM_MD_DESCR, GNM_MD_SRS));
     133             : 
     134        1653 :         poDriver->SetMetadataItem(GDAL_DS_LAYER_CREATIONOPTIONLIST,
     135        1653 :                                   "<LayerCreationOptionList/>");
     136        1653 :         poDriver->pfnOpen = GNMDBDriverOpen;
     137        1653 :         poDriver->pfnIdentify = GNMDBDriverIdentify;
     138        1653 :         poDriver->pfnCreate = GNMDBDriverCreate;
     139        1653 :         poDriver->pfnDelete = GNMDBDriverDelete;
     140             : 
     141        1653 :         GetGDALDriverManager()->RegisterDriver(poDriver);
     142             :     }
     143        1935 : }