int SRTMHGTDataset::Identify( GDALOpenInfo * poOpenInfo )
{
const char* fileName = CPLGetFilename(poOpenInfo->pszFilename);
if( strlen(fileName) < 11 || fileName[7] != '.' )
return FALSE;
CPLString osLCFilename(CPLString(fileName).tolower());
if( (osLCFilename[0] != 'n' && osLCFilename[0] != 's') ||
(osLCFilename[3] != 'e' && osLCFilename[3] != 'w') )
return FALSE;
if( !STARTS_WITH(fileName, "/vsizip/") &&
osLCFilename.endsWith(".hgt.zip") )
{
CPLString osNewName("/vsizip/");
osNewName += poOpenInfo->pszFilename;
osNewName += "/";
osNewName += CPLString(fileName).substr(0, 7);
osNewName += ".hgt";
GDALOpenInfo oOpenInfo(osNewName, GA_ReadOnly);
return Identify(&oOpenInfo);
}
if( !STARTS_WITH(fileName, "/vsizip/") &&
osLCFilename.endsWith(".srtmswbd.raw.zip") )
{
CPLString osNewName("/vsizip/");
osNewName += poOpenInfo->pszFilename;
osNewName += "/";
osNewName += CPLString(fileName).substr(0, 7);
osNewName += ".raw";
GDALOpenInfo oOpenInfo(osNewName, GA_ReadOnly);
return Identify(&oOpenInfo);
}
if( !osLCFilename.endsWith(".hgt") &&
!osLCFilename.endsWith(".raw") &&
!osLCFilename.endsWith(".hgt.gz") )
return FALSE;
/* -------------------------------------------------------------------- */
/* We check the file size to see if it is */
/* SRTM1 (below or above lat 50) or SRTM 3 */
/* -------------------------------------------------------------------- */
VSIStatBufL fileStat;
if(VSIStatL(poOpenInfo->pszFilename, &fileStat) != 0)
return FALSE;
if(fileStat.st_size != 3601 * 3601 &&
fileStat.st_size != 3601 * 3601 * 2 &&
fileStat.st_size != 1801 * 3601 * 2 &&
fileStat.st_size != 1201 * 1201 * 2 )
return FALSE;
return TRUE;
}
int OGRMySQLDataSource::Open( const char * pszNewName, char** papszOpenOptionsIn,
int bUpdate )
{
CPLAssert( nLayers == 0 );
/* -------------------------------------------------------------------- */
/* Use options process to get .my.cnf file contents. */
/* -------------------------------------------------------------------- */
int nPort = 0;
char **papszTableNames=NULL;
std::string oHost, oPassword, oUser, oDB;
CPLString osNewName(pszNewName);
const char* apszOpenOptions[] = { "dbname", "port", "user", "password",
"host", "tables"
};
for(int i=0; i <(int)(sizeof(apszOpenOptions)/sizeof(char*)); i++)
{
const char* pszVal = CSLFetchNameValue(papszOpenOptionsIn, apszOpenOptions[i]);
if( pszVal )
{
if( osNewName[osNewName.size()-1] != ':' )
osNewName += ",";
if( i > 0 )
{
osNewName += apszOpenOptions[i];
osNewName += "=";
}
if( EQUAL(apszOpenOptions[i], "tables") )
{
for( ; *pszVal; ++pszVal )
{
if( *pszVal == ',' )
osNewName += ";";
else
osNewName += *pszVal;
}
}
else
osNewName += pszVal;
}
}
/* -------------------------------------------------------------------- */
/* Parse out connection information. */
/* -------------------------------------------------------------------- */
char **papszItems = CSLTokenizeString2( osNewName+6, ",",
CSLT_HONOURSTRINGS );
if( CSLCount(papszItems) < 1 )
{
CSLDestroy( papszItems );
CPLError( CE_Failure, CPLE_AppDefined,
"MYSQL: request missing databasename." );
return FALSE;
}
oDB = papszItems[0];
for( int i = 1; papszItems[i] != NULL; i++ )
{
if( STARTS_WITH_CI(papszItems[i], "user="******"password="******"host=") )
oHost = papszItems[i] + 5;
else if( STARTS_WITH_CI(papszItems[i], "port=") )
nPort = atoi(papszItems[i] + 5);
else if( STARTS_WITH_CI(papszItems[i], "tables=") )
{
CSLDestroy(papszTableNames);
papszTableNames = CSLTokenizeStringComplex(
papszItems[i] + 7, ";", FALSE, FALSE );
}
else
CPLError( CE_Warning, CPLE_AppDefined,
"'%s' in MYSQL datasource definition not recognised and ignored.", papszItems[i] );
}
CSLDestroy( papszItems );
/* -------------------------------------------------------------------- */
/* Try to establish connection. */
/* -------------------------------------------------------------------- */
hConn = mysql_init( NULL );
if( hConn == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"mysql_init() failed." );
}
/* -------------------------------------------------------------------- */
/* Set desired options on the connection: charset and timeout. */
/* -------------------------------------------------------------------- */
if( hConn )
{
const char *pszTimeoutLength =
CPLGetConfigOption( "MYSQL_TIMEOUT", "0" );
unsigned int timeout = atoi(pszTimeoutLength);
mysql_options(hConn, MYSQL_OPT_CONNECT_TIMEOUT, (char*)&timeout);
mysql_options(hConn, MYSQL_SET_CHARSET_NAME, "utf8" );
}
/* -------------------------------------------------------------------- */
/* Perform connection. */
/* -------------------------------------------------------------------- */
if( hConn
&& mysql_real_connect( hConn,
oHost.length() ? oHost.c_str() : NULL,
oUser.length() ? oUser.c_str() : NULL,
oPassword.length() ? oPassword.c_str() : NULL,
oDB.length() ? oDB.c_str() : NULL,
nPort, NULL, CLIENT_INTERACTIVE ) == NULL )
{
CPLError( CE_Failure, CPLE_AppDefined,
"MySQL connect failed for: %s\n%s",
pszNewName + 6, mysql_error( hConn ) );
mysql_close( hConn );
hConn = NULL;
}
if( hConn == NULL )
{
CSLDestroy( papszTableNames );
return FALSE;
}
else
{
// Enable automatic reconnection
// Must be called after mysql_real_connect() on MySQL < 5.0.19
// and at any point on more recent versions.
my_bool reconnect = 1;
mysql_options(hConn, MYSQL_OPT_RECONNECT, &reconnect);
}
pszName = CPLStrdup( pszNewName );
bDSUpdate = bUpdate;
/* -------------------------------------------------------------------- */
/* Get a list of available tables. */
/* -------------------------------------------------------------------- */
if( papszTableNames == NULL )
{
MYSQL_RES *hResultSet;
MYSQL_ROW papszRow;
if( mysql_query( hConn, "SHOW TABLES" ) )
{
ReportError( "SHOW TABLES Failed" );
return FALSE;
}
hResultSet = mysql_store_result( hConn );
if( hResultSet == NULL )
{
ReportError( "mysql_store_result() failed on SHOW TABLES result.");
return FALSE;
}
while( (papszRow = mysql_fetch_row( hResultSet )) != NULL )
{
if( papszRow[0] == NULL )
continue;
if( EQUAL(papszRow[0],"spatial_ref_sys")
|| EQUAL(papszRow[0],"geometry_columns") )
continue;
papszTableNames = CSLAddString(papszTableNames, papszRow[0] );
}
mysql_free_result( hResultSet );
}
/* -------------------------------------------------------------------- */
/* Get the schema of the available tables. */
/* -------------------------------------------------------------------- */
int iRecord;
for( iRecord = 0;
papszTableNames != NULL && papszTableNames[iRecord] != NULL;
iRecord++ )
{
// FIXME: This should be fixed to deal with tables
// for which we can't open because the name is bad/
OpenTable( papszTableNames[iRecord], bUpdate );
}
CSLDestroy( papszTableNames );
return nLayers > 0 || bUpdate;
}
