} // getString
/*
** Name: getISR
**
** Description:
** Returns an InputStreamReader for input from provided stream
** and conversion using the associated encoding .
**
** Input:
** stream InputStream to be converted.
**
** Output:
** None.
**
** Returns:
** InputStreamReader Reader for encoding conversion of stream.
**
** History:
** 6-Sep-02 (gordy)
** Created.
** 11-Nov-02 (thoda04)
** Ported to .NET Provider.
*/
public virtual InputStreamReader getISR(InputStream stream)
{
InputStreamReader isr;
if (encoding == null)
{
isr = new InputStreamReader(stream);
}
else
{
isr = new InputStreamReader(stream, encoding);
}
return(isr);
} // getISR
/*
** Name: setAsciiStream
**
** Description:
** Set parameter to an ASCII character stream.
**
** Input:
** paramIndex Parameter index.
** stream ASCII stream.
** length Length of stream in bytes.
**
** Output:
** None.
**
** Returns:
** void.
**
** History:
** 19-May-99 (gordy)
** Created.
** 2-Feb-00 (gordy)
** Send short streams as VARCHAR or VARBINARY.
** 13-Jun-00 (gordy)
** Map parameter index.
** 8-Jan-01 (gordy)
** Stream classes moved to ParamSet.
** 1-Jun-01 (gordy)
** No longer need wrapper class for Reader, so use
** wrapper class to convert InputStream to Reader.
** 19-Feb-03 (gordy)
** Check for alternate storage format.
** 1-Nov-03 (gordy)
** ParamSet functionality extended.
** 14-Sep-05 (gordy)
** If stream is short enough, save as VARCHAR.
*/
public void setAsciiStream( int paramIndex, InputStream stream, int length )
{
if ( trace.enabled() ) trace.log( title + ".setAsciiStream( " +
paramIndex + ", " + length + " )" );
/*
** Check length to see if can be sent as VARCHAR.
** Ingres won't coerce CLOB to VARCHAR, but will
** coerce VARCHAR to CLOB, so VARCHAR is preferred.
*/
if ( length >= 0 && length <= (conn.ucs2_supported ? conn.max_nvch_len
: conn.max_vchr_len) )
{
char[] chars = new char[ length ];
if ( length > 0 )
try
{
Reader rdr = new InputStreamReader( stream, "US-ASCII" );
int len = rdr.read( chars );
if ( len != length )
{
/*
** Character array limits read so any difference
** must be a truncation.
*/
if ( trace.enabled( 1 ) )
trace.write( tr_id + ".setAsciiStream: read only " +
len + " of " + length + " characters!" );
setWarning( DataTruncation( paramIndex, true,
false, length, len ) );
}
}
catch( IOException )
{ throw SqlEx.get( ERR_GC4007_BLOB_IO ); }
paramIndex = paramMap( paramIndex );
paramSet.init( paramIndex, ProviderType.VarChar );
paramSet.setString( paramIndex, new String( chars ) );
}
else
{
paramIndex = paramMap( paramIndex );
paramSet.init( paramIndex, ProviderType.LongVarChar );
paramSet.setAsciiStream( paramIndex, stream );
}
return;
}
/*
** Name: getISR
**
** Description:
** Returns an InputStreamReader for input from provided stream
** and conversion using the associated encoding .
**
** Input:
** stream InputStream to be converted.
**
** Output:
** None.
**
** Returns:
** InputStreamReader Reader for encoding conversion of stream.
**
** History:
** 6-Sep-02 (gordy)
** Created.
** 11-Nov-02 (thoda04)
** Ported to .NET Provider.
*/
public virtual InputStreamReader getISR(InputStream stream)
{
InputStreamReader isr;
if (encoding == null)
isr = new InputStreamReader(stream);
else
isr = new InputStreamReader(stream, encoding);
return (isr);
}