Metacat

        if (guid != null) { //get a specific document                

            Identifier id = new Identifier();

            id.setValue(guid);

            SystemMetadata sm = CNodeService.getInstance().getSystemMetadata(session, id);

            //set the content type

            if(sm.getObjectFormat().getFmtid().getValue().trim().equals(

            		ObjectFormatCache.getInstance().getFormat("text/csv").getFmtid().getValue()))

            {

                response.setContentType("text/csv");

                response.setHeader("Content-Disposition", "inline; filename=" + id.getValue() + ".csv");

            }

            else if(sm.getObjectFormat().getFmtid().getValue().trim().equals(

            		ObjectFormatCache.getInstance().getFormat("text/plain").getFmtid().getValue()))

            {

                response.setContentType("text/plain");

                response.setHeader("Content-Disposition", "inline; filename=" + id.getValue() + ".txt");

            } 

            else if(sm.getObjectFormat().getFmtid().getValue().trim().equals(

            		ObjectFormatCache.getInstance().getFormat("application/octet-stream").getFmtid().getValue()))

            {

                response.setContentType("application/octet-stream");

            }

            else

            {

                response.setContentType("text/xml");

                response.setHeader("Content-Disposition", "inline; filename=" + id.getValue() + ".xml");

            }

            InputStream data = CNodeService.getInstance().get(session, id);

            OutputStream out = response.getOutputStream();

            response.setStatus(200);

            IOUtils.copyLarge(data, out);