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/******************************************************************************
* $Id: ogrsuadatasource.cpp 23042 2011-09-04 15:07:22Z rouault $
*
* Project: SUA Translator
* Purpose: Implements OGRSUADataSource class
* Author: Even Rouault, even dot rouault at mines dash paris dot org
*
******************************************************************************
* Copyright (c) 2010, 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.
****************************************************************************/
#include "ogr_sua.h"
#include "cpl_conv.h"
#include "cpl_string.h"
CPL_CVSID("$Id: ogrsuadatasource.cpp 23042 2011-09-04 15:07:22Z rouault $");
/************************************************************************/
/* OGRSUADataSource() */
/************************************************************************/
OGRSUADataSource::OGRSUADataSource()
{
papoLayers = NULL;
nLayers = 0;
pszName = NULL;
}
/************************************************************************/
/* ~OGRSUADataSource() */
/************************************************************************/
OGRSUADataSource::~OGRSUADataSource()
{
for( int i = 0; i < nLayers; i++ )
delete papoLayers[i];
CPLFree( papoLayers );
CPLFree( pszName );
}
/************************************************************************/
/* TestCapability() */
/************************************************************************/
int OGRSUADataSource::TestCapability( const char * pszCap )
{
return FALSE;
}
/************************************************************************/
/* GetLayer() */
/************************************************************************/
OGRLayer *OGRSUADataSource::GetLayer( int iLayer )
{
if( iLayer < 0 || iLayer >= nLayers )
return NULL;
else
return papoLayers[iLayer];
}
/************************************************************************/
/* Open() */
/************************************************************************/
int OGRSUADataSource::Open( const char * pszFilename, int bUpdateIn)
{
if (bUpdateIn)
{
return FALSE;
}
pszName = CPLStrdup( pszFilename );
// --------------------------------------------------------------------
// Does this appear to be a .sua file?
// --------------------------------------------------------------------
VSILFILE* fp = VSIFOpenL(pszFilename, "rb");
if (fp == NULL)
return FALSE;
char szBuffer[10000];
int nbRead = (int)VSIFReadL(szBuffer, 1, sizeof(szBuffer) - 1, fp);
szBuffer[nbRead] = '\0';
int bIsSUA = (strstr(szBuffer, "\nTYPE=") != NULL &&
strstr(szBuffer, "\nTITLE=") != NULL &&
(strstr(szBuffer, "\nPOINT=") != NULL ||
strstr(szBuffer, "\nCIRCLE ") != NULL));
if (bIsSUA)
{
VSIFSeekL( fp, 0, SEEK_SET );
nLayers = 1;
papoLayers = (OGRLayer**) CPLMalloc(sizeof(OGRLayer*));
papoLayers[0] = new OGRSUALayer(fp);
}
else
VSIFCloseL(fp);
return bIsSUA;
}
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