copyRdr2Wtr(Reader rdr, Writer wtr)
{
if (cbuff == null)
{
lock (this)
{
{ if (cbuff == null)
{
cbuff = new char[4096];
}
}
}
}
try
{
lock (cbuff)
{
for (int len = rdr.read(cbuff); len >= 0; len = rdr.read(cbuff))
{
wtr.write(cbuff, 0, len);
}
}
rdr.close();
wtr.flush();
}
catch (Exception ex)
{
try { rdr.close(); }
catch (Exception /* ignore */) { }
try { wtr.flush(); }
catch (Exception /* ignore */) { }
throw SqlEx.get(ERR_GC4007_BLOB_IO, ex);
}
return;
} // copyRdr2Wtr
/*
** Name: get
**
** Description:
** Write the current data value to a Writer stream.
** The current data value is consumed. The Writer
** stream is not closed but will be flushed.
**
** Note: the value returned when the data value is
** NULL is not well defined.
**
** Input:
** wtr Writer to receive data value.
**
** Output:
** None.
**
** Returns:
** void.
**
** History:
** 1-Dec-03 (gordy)
** Created.
*/
public override void get(Writer wtr)
{
Object stream = getStream();
if (stream != null)
{
if (stream is InputStream)
copyRdr2Wtr(cnvtIS2Rdr((InputStream)stream), wtr);
else
if (stream is Reader)
copyRdr2Wtr((Reader)stream, wtr);
else
throw SqlEx.get(ERR_GC401A_CONVERSION_ERR);
}
return;
}
/*
** Name: get
**
** Description:
** Write the current data value to a Writer stream.
** The current data value is consumed. The Writer
** stream is not closed but will be flushed.
**
** Note: the value returned when the data value is
** NULL is not well defined.
**
** Input:
** wtr Writer to receive data value.
**
** Output:
** None.
**
** Returns:
** void.
**
** History:
** 1-Dec-03 (gordy)
** Created.
*/
public virtual void get(Writer wtr)
{
copyRdr2Wtr((Reader)getStream(), wtr);
return;
}
/*
** Name: coyRdr2Wtr
**
** Description:
** Writes the contents of a Reader stream to a Writer stream.
** The Reader stream is closed. The Writer stream is flushed
** but not closed.
**
** Input:
** rdr Reader stream.
** wtr Writer stream.
**
** Output:
** None.
**
** Returns:
** void.
**
** History:
** 1-Dec-03 (gordy)
** Created.
*/
protected void copyRdr2Wtr(Reader rdr, Writer wtr)
{
if (cbuff == null)
lock (this)
{
{ if (cbuff == null) cbuff = new char[4096]; }
}
try
{
lock (cbuff)
{
for (int len = rdr.read(cbuff); len >= 0; len = rdr.read(cbuff))
wtr.write(cbuff, 0, len);
}
rdr.close();
wtr.flush();
}
catch (Exception ex)
{
try { rdr.close(); }
catch (Exception /* ignore */ ) { }
try { wtr.flush(); }
catch (Exception /* ignore */ ) { }
throw SqlEx.get(ERR_GC4007_BLOB_IO, ex);
}
return;
}
