/****************************************************************************** * $Id: ogrsqlitedriver.cpp 10646 2007-01-18 02:38:10Z warmerdam $ * * Project:  OpenGIS Simple Features Reference Implementation * Purpose:  Implements OGRSQLiteDriver class. * Author:   Frank Warmerdam, warmerdam@pobox.com * ****************************************************************************** * Copyright (c) 2004, Frank Warmerdam <warmerdam@pobox.com> * * 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. ****************************************************************************/#include "ogr_sqlite.h"#include "cpl_conv.h"CPL_CVSID("$Id: ogrsqlitedriver.cpp 10646 2007-01-18 02:38:10Z warmerdam $");/************************************************************************//*                            ~OGRSQLiteDriver()                            *//************************************************************************/OGRSQLiteDriver::~OGRSQLiteDriver(){}/************************************************************************//*                              GetName()                               *//************************************************************************/const char *OGRSQLiteDriver::GetName(){    return "SQLite";}/************************************************************************//*                                Open()                                *//************************************************************************/OGRDataSource *OGRSQLiteDriver::Open( const char * pszFilename,                                     int bUpdate ){/* -------------------------------------------------------------------- *//*      Verify that the target is a real file, and has an               *//*      appropriate magic string at the beginning.                      *//* -------------------------------------------------------------------- */    FILE *fpDB;    char szHeader[16];        fpDB = VSIFOpen( pszFilename, "rb" );    if( fpDB == NULL )        return NULL;        if( VSIFRead( szHeader, 1, 16, fpDB ) != 16 )        memset( szHeader, 0, 16 );        VSIFClose( fpDB );        if( strncmp( szHeader, "SQLite format 3", 15 ) != 0 )        return NULL;/* -------------------------------------------------------------------- *//*      We think this is really an SQLite database, go ahead and try    *//*      and open it.                                                    *//* -------------------------------------------------------------------- */    OGRSQLiteDataSource     *poDS;    poDS = new OGRSQLiteDataSource();    if( !poDS->Open( pszFilename ) )    {        delete poDS;        return NULL;    }    else        return poDS;}/************************************************************************//*                          CreateDataSource()                          *//************************************************************************/OGRDataSource *OGRSQLiteDriver::CreateDataSource( const char * pszName,                                                  char ** /* papszOptions */ ){/* -------------------------------------------------------------------- *//*      First, ensure there isn't any such file yet.                    *//* -------------------------------------------------------------------- */    VSIStatBuf sStatBuf;    if( VSIStat( pszName, &sStatBuf ) == 0 )    {        CPLError( CE_Failure, CPLE_AppDefined,                   "It seems a file system object called '%s' already exists.",                  pszName );        return NULL;    }/* -------------------------------------------------------------------- *//*      Create the datasource.                                          *//* -------------------------------------------------------------------- */    OGRSQLiteDataSource     *poDS;    poDS = new OGRSQLiteDataSource();    if( !poDS->Open( pszName ) )    {        delete poDS;        return NULL;    }    return poDS;}/************************************************************************//*                           TestCapability()                           *//************************************************************************/int OGRSQLiteDriver::TestCapability( const char * pszCap ){    if( EQUAL(pszCap,ODrCCreateDataSource) )        return TRUE;    else        return FALSE;}/************************************************************************//*                         RegisterOGRSQLite()                          *//************************************************************************/void RegisterOGRSQLite(){    OGRSFDriverRegistrar::GetRegistrar()->RegisterDriver( new OGRSQLiteDriver );}