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/******************************************************************************
* $Id: test_load_virtual_ogr.c 24845 2012-08-25 09:11:20Z rouault $
*
* Project: OpenGIS Simple Features Reference Implementation
* Purpose: Test dynamic loading of SQLite Virtual Table module using OGR layers
* Author: Even Rouault, even dot rouault at mines dash paris dot org
*
******************************************************************************
* Copyright (c) 2012, Even Rouault <even dot rouault at mines dash 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.
****************************************************************************/
#ifdef HAVE_SPATIALITE
#ifdef SPATIALITE_AMALGAMATION
/*
/ using an AMALGAMATED version of SpatiaLite
/ a private internal copy of SQLite is included:
/ so we are required including the SpatiaLite's
/ own header
/
/ IMPORTANT NOTICE: using AMALAGATION is only
/ useful on Windows (to skip DLL hell related oddities)
*/
#include <spatialite/sqlite3.h>
#else
/*
/ You MUST NOT use AMALGAMATION on Linux or any
/ other "sane" operating system !!!!
*/
#include "sqlite3.h"
#endif
#else
#include "sqlite3.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#undef NDEBUG
#include <assert.h>
#ifndef _MSC_VER
#include <unistd.h>
#endif
#if _MSC_VER
#define snprintf _snprintf
#endif
int main(int argc, char* argv[])
{
sqlite3* db = NULL;
char* pszErrMsg = NULL;
char** papszResult = NULL;
int nRowCount = 0, nColCount = 0;
int rc;
char szBuffer[256];
if( argc < 2 || argc > 4 )
{
fprintf(stderr, "Usage: test_load_virtual_ogr libgdal.so|gdalXX.dll [datasource_name] [layer_name]\n");
exit(1);
}
sqlite3_open("tmp.db", &db);
if( db == NULL )
{
fprintf(stderr, "cannot open DB.\n");
exit(1);
}
rc = sqlite3_enable_load_extension(db, 1);
if( rc != SQLITE_OK )
{
fprintf(stderr, "sqlite3_enable_load_extension() failed\n");
sqlite3_close(db);
unlink("tmp.db");
exit(1);
}
rc = sqlite3_load_extension(db, argv[1], NULL, &pszErrMsg);
if( rc != SQLITE_OK )
{
fprintf(stderr, "sqlite3_load_extension(%s) failed: %s\n", argv[1], pszErrMsg);
sqlite3_free( pszErrMsg );
sqlite3_close(db);
unlink("tmp.db");
exit(1);
}
rc = sqlite3_get_table( db, "SELECT ogr_version()",
&papszResult, &nRowCount, &nColCount,
&pszErrMsg );
if( rc == SQLITE_OK && nRowCount == 1 && nColCount == 1 )
{
printf("SELECT ogr_version() returned : %s\n", papszResult[1]);
}
else
{
fprintf(stderr, "SELECT ogr_version() failed: %s\n", pszErrMsg);
sqlite3_free( pszErrMsg );
sqlite3_close(db);
unlink("tmp.db");
exit(1);
}
sqlite3_free_table(papszResult);
if( argc >= 3 )
{
if( argc == 3 )
{
snprintf(szBuffer, sizeof(szBuffer),
"CREATE VIRTUAL TABLE foo USING VirtualOGR('%s')",
argv[2]);
}
else
{
snprintf(szBuffer, sizeof(szBuffer),
"CREATE VIRTUAL TABLE foo USING VirtualOGR('%s', 0, '%s', 1)",
argv[2], argv[3]);
}
rc = sqlite3_exec(db, szBuffer, NULL, NULL, &pszErrMsg);
if( rc != SQLITE_OK )
{
fprintf(stderr, "%s failed: %s\n", szBuffer, pszErrMsg);
sqlite3_free( pszErrMsg );
sqlite3_close(db);
unlink("tmp.db");
exit(1);
}
else
{
if( argc == 3 )
printf("Managed to open '%s'\n", argv[2]);
else
printf("Managed to open '%s':'%s'\n", argv[2], argv[3]);
assert(SQLITE_OK == sqlite3_exec(db, "CREATE TABLE spy_table (spy_content VARCHAR)", NULL, NULL, NULL));
assert(SQLITE_OK == sqlite3_exec(db, "CREATE TABLE regular_table (bar VARCHAR)", NULL, NULL, NULL));
assert(SQLITE_OK == sqlite3_exec(db, "CREATE TRIGGER spy_trigger INSERT ON regular_table BEGIN "
"INSERT OR REPLACE INTO spy_table (spy_content) "
"SELECT OGR_STYLE FROM foo; END;", NULL, NULL, NULL));
sqlite3_close(db);
db = NULL;
sqlite3_open("tmp.db", &db);
if( db == NULL )
{
fprintf(stderr, "cannot reopen DB.\n");
unlink("tmp.db");
exit(1);
}
assert(SQLITE_OK == sqlite3_enable_load_extension(db, 1));
assert(SQLITE_OK == sqlite3_load_extension(db, argv[1], NULL, NULL));
pszErrMsg = NULL;
assert(SQLITE_OK != sqlite3_exec(db, "INSERT INTO regular_table (bar) VALUES ('bar')", NULL, NULL, &pszErrMsg));
fprintf(stderr, "Expected error. We got : %s\n", pszErrMsg);
sqlite3_free(pszErrMsg);
}
}
sqlite3_close(db);
unlink("tmp.db");
return 0;
}
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