int OGRAVCBinLayer::CheckSetupTable()
{
if( szTableName[0] == '\0' )
return FALSE;
/* -------------------------------------------------------------------- */
/* Scan for the indicated section. */
/* -------------------------------------------------------------------- */
AVCE00ReadPtr psInfo = ((OGRAVCBinDataSource *) poDS)->GetInfo();
int iSection;
AVCE00Section *psSection = NULL;
char szPaddedName[65];
sprintf( szPaddedName, "%s%32s", szTableName, " " );
szPaddedName[32] = '\0';
for( iSection = 0; iSection < psInfo->numSections; iSection++ )
{
if( EQUAL(szPaddedName,psInfo->pasSections[iSection].pszName)
&& psInfo->pasSections[iSection].eType == AVCFileTABLE )
psSection = psInfo->pasSections + iSection;
}
if( psSection == NULL )
{
szTableName[0] = '\0';
return FALSE;
}
/* -------------------------------------------------------------------- */
/* Try opening the table. */
/* -------------------------------------------------------------------- */
hTable = AVCBinReadOpen( psInfo->pszInfoPath, szTableName,
psInfo->eCoverType, AVCFileTABLE,
psInfo->psDBCSInfo);
if( hTable == NULL )
{
szTableName[0] = '\0';
return FALSE;
}
/* -------------------------------------------------------------------- */
/* Setup attributes. */
/* -------------------------------------------------------------------- */
nTableBaseField = poFeatureDefn->GetFieldCount();
AppendTableDefinition( hTable->hdr.psTableDef );
/* -------------------------------------------------------------------- */
/* Close table so we don't have to many files open at once. */
/* -------------------------------------------------------------------- */
AVCBinReadClose( hTable );
hTable = NULL;
return TRUE;
}
void OGRAVCBinLayer::ResetReading()
{
if( hFile != NULL )
{
AVCBinReadClose( hFile );
hFile = NULL;
}
bNeedReset = FALSE;
nNextFID = 1;
if( hTable != NULL )
{
AVCBinReadClose( hTable );
hTable = NULL;
}
}
int OGRAVCBinDataSource::Open( const char * pszNewName, int bTestOpen )
{
/* -------------------------------------------------------------------- */
/* Open the source file. Supress error reporting if we are in */
/* TestOpen mode. */
/* -------------------------------------------------------------------- */
if( bTestOpen )
CPLPushErrorHandler( CPLQuietErrorHandler );
psAVC = AVCE00ReadOpen( pszNewName );
if( bTestOpen )
{
CPLPopErrorHandler();
CPLErrorReset();
}
if( psAVC == NULL )
return FALSE;
pszName = CPLStrdup( pszNewName );
pszCoverageName = CPLStrdup( psAVC->pszCoverName );
/* -------------------------------------------------------------------- */
/* Create layers for the "interesting" sections of the coverage. */
/* -------------------------------------------------------------------- */
int iSection;
papoLayers = (OGRLayer **)
CPLCalloc( sizeof(OGRLayer *), psAVC->numSections );
nLayers = 0;
for( iSection = 0; iSection < psAVC->numSections; iSection++ )
{
AVCE00Section *psSec = psAVC->pasSections + iSection;
switch( psSec->eType )
{
case AVCFileARC:
case AVCFilePAL:
case AVCFileCNT:
case AVCFileLAB:
case AVCFileRPL:
case AVCFileTXT:
case AVCFileTX6:
papoLayers[nLayers++] = new OGRAVCBinLayer( this, psSec );
break;
case AVCFilePRJ:
{
char **papszPRJ;
AVCBinFile *hFile;
hFile = AVCBinReadOpen(psAVC->pszCoverPath,
psSec->pszFilename,
psAVC->eCoverType,
psSec->eType,
psAVC->psDBCSInfo);
if( hFile && poSRS == NULL )
{
papszPRJ = AVCBinReadNextPrj( hFile );
poSRS = new OGRSpatialReference();
if( poSRS->importFromESRI( papszPRJ ) != OGRERR_NONE )
{
CPLError( CE_Warning, CPLE_AppDefined,
"Failed to parse PRJ section, ignoring." );
delete poSRS;
poSRS = NULL;
}
AVCBinReadClose( hFile );
}
}
break;
default:
;
}
}
return nLayers > 0;
}
bool OGRAVCBinLayer::CheckSetupTable()
{
if( szTableName[0] == '\0' )
return false;
/* -------------------------------------------------------------------- */
/* Scan for the indicated section. */
/* -------------------------------------------------------------------- */
AVCE00ReadPtr psInfo
= static_cast<OGRAVCBinDataSource *>( poDS )->GetInfo();
const size_t BUFSIZE = 32;
char szPaddedName[BUFSIZE+1] = { 0 };
// Fill szPaddedName with szTableName up to 32 chars and fill the remaining
// ones with ' '
strncpy( szPaddedName, szTableName, BUFSIZE );
if( strlen(szTableName) < BUFSIZE )
{
memset( szPaddedName + strlen(szTableName), ' ',
BUFSIZE - strlen(szTableName) );
}
AVCE00Section *l_psSection = NULL;
for( int iSection = 0; iSection < psInfo->numSections; iSection++ )
{
if( EQUAL(szPaddedName,psInfo->pasSections[iSection].pszName)
&& psInfo->pasSections[iSection].eType == AVCFileTABLE )
l_psSection = psInfo->pasSections + iSection;
}
if( l_psSection == NULL )
{
szTableName[0] = '\0';
return false;
}
/* -------------------------------------------------------------------- */
/* Try opening the table. */
/* -------------------------------------------------------------------- */
hTable = AVCBinReadOpen( psInfo->pszInfoPath, szTableName,
psInfo->eCoverType, AVCFileTABLE,
psInfo->psDBCSInfo);
if( hTable == NULL )
{
szTableName[0] = '\0';
return false;
}
/* -------------------------------------------------------------------- */
/* Setup attributes. */
/* -------------------------------------------------------------------- */
nTableBaseField = poFeatureDefn->GetFieldCount();
AppendTableDefinition( hTable->hdr.psTableDef );
/* -------------------------------------------------------------------- */
/* Close table so we don't have to many files open at once. */
/* -------------------------------------------------------------------- */
AVCBinReadClose( hTable );
hTable = NULL;
return true;
}
