Generation of a network graphic in WD ABAP
TYPE spfli. * create the ixml main factory ixml = cl_ixml=>create( ). * create a empty document document = ixml->create_document( ). charset = ‘SAP*’. encoding = ixml->create_encoding( character_set = charset byte_order = endian ). document->set_encoding( encoding = encoding ). * create root node for JNet element = document->create_element( name = ‘SAPJNetData’ ). ret = element->set_attribute( name = ‘version’ value = ‘1.0’ ). ret = element->set_attribute( name = ‘xml:lang’ value = ‘en’ ). ret = document->append_child( new_child = element ). root = element. *– create TypeRepository ——————————————- * element = document->create_element( name = ‘TypeRepository’ ). ret = element->set_attribute( name = ‘id’ value = ‘connections’ ). ret = element->set_attribute( name = ‘version’ value = ‘1.0’ ). ret = root->append_child( new_child = element ). typerep = element. * create LAYOUT element = document->create_element( name = ‘LAYOUT’ ). ret = typerep->append_child( new_child = element ). parent = element. * create MyLayout element = document->create_element( name = ‘type’ ). ret = element->set_attribute( name = ‘name’ value = ‘MyLayout’ ). ret = parent->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘component’ ). ret = element->set_attribute( name = ‘index’ value = ‘0’ ). ret = element->set_attribute( name = ‘width’ value = ‘100%’ ). ret = element->set_attribute( name = ‘height’ value = ‘50%’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘component’ ). ret = element->set_attribute( name = ‘index’ value = ‘1’ ). ret = element->set_attribute( name = ‘width’ value = ‘100%’ ). ret = element->set_attribute( name = ‘height’ value = ‘50%’ ). ret = parent->append_child( new_child = element ). *– create LABEL —————————————————- * element = document->create_element( name = ‘LABEL’ ). ret = typerep->append_child( new_child = element ). parent = element. * create MyHeaderLabel element = document->create_element( name = ‘type’ ). ret = element->set_attribute( name = ‘name’ value = ‘MyHeaderLabel’ ). ret = element->set_attribute( name = ‘inherits’ value = ‘NodeLabel’ ). ret = parent->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘color’ ). ret = element->set_attribute( name = ‘type’ value = ‘White’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘fillColor’ ). ret = element->set_attribute( name = ‘type’ value = ‘Blue’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘font’ ). ret = parent->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘style’ ). ret = element->set_value( value = ‘BOLD’ ). ret = parent->append_child( new_child = element ). * create NODE element = document->create_element( name = ‘NODE’ ). ret = typerep->append_child( new_child = element ). parent = element. * create MyNode element = document->create_element( name = ‘type’ ). ret = element->set_attribute( name = ‘name’ value = ‘MyNode’ ). ret = parent->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘layout’ ). ret = element->set_attribute( name = ‘type’ value = ‘MyLayout’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘label’ ). ret = element->set_attribute( name = ‘index’ value = ‘0’ ). ret = element->set_attribute( name = ‘type’ value = ‘MyHeaderLabel’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘label’ ). ret = element->set_attribute( name = ‘index’ value = ‘1’ ). ret = element->set_attribute( name = ‘type’ value = ‘NodeLabel’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘plugs’ ). ret = element->set_attribute( name = ‘min’ value = ‘0’ ). ret = element->set_attribute( name = ‘position’ value = ‘SOUTH’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘sockets’ ). ret = element->set_attribute( name = ‘min’ value = ‘0’ ). ret = element->set_attribute( name = ‘position’ value = ‘NORTH’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘shape’ ). ret = parent->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘border’ ). ret = element->set_attribute( name = ‘type’ value = ‘EMPTY’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘size’ ). ret = element->set_value( value = ‘140,77’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘filled’ ). ret = element->set_value( value = ‘TRUE’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘fillColor’ ). ret = parent->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘rgb’ ). ret = element->set_value( value = ‘221,221,221’ ). ret = parent->append_child( new_child = element ). *– create Graph —————————————————- * element = document->create_element( name = ‘Graph’ ). ret = element->set_attribute( name = ‘version’ value = ‘1.0’ ). ret = root->append_child( new_child = element ). graph = element. * layout, direction and view element = document->create_element( name = ‘layouts’ ). ret = element->set_attribute( name = ‘onLoad’ value = ‘TREE’ ). ret = graph->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘types’ ). ret = element->set_value( value = ‘TREE’ ). ret = parent->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘direction’ ). ret = element->set_value( value = ‘TOP_BOTTOM’ ). ret = graph->append_child( new_child = element ). element = document->create_element( name = ‘view’ ). ret = element->set_attribute( name = ‘coordinates’ value = ‘GRID’ ). ret = graph->append_child( new_child = element ). parent = element. element = document->create_element( name = ‘grid’ ). ret = element->set_value( value = ‘80,180’ ). ret = parent->append_child( new_child = element ). element = document->create_element( name = ‘offset’ ). ret = element->set_value( value = ‘40,0’ ). ret = parent->append_child( new_child = element ). * create node for the carrier node_carriers = wd_context->get_child_node( name = wd_this->wdctx_carriers ). node_carriers->get_static_attributes_table( IMPORTING TABLE = lt_carriers ). CHECK r_param->index IS NOT INITIAL. READ TABLE lt_carriers INDEX r_param->index ASSIGNING append_child( new_child = element ). * create nodes and edges for the connections SELECT * FROM spfli INTO TABLE lt_spfli WHERE carrid = append_child( new_child = element ). ENDLOOP. * convert the XML to xstring streamfactory = ixml->create_stream_factory( ). ostream = streamfactory->create_ostream_xstring( content ). renderer = ixml->create_renderer( document = document ostream = ostream ). ret = renderer->render( ). ostream->close( ). * fill the data_source with the XML data wd_context->set_attribute( EXPORTING name = `DATA_SOURCE` value = content ). * dump the XML data to a mime file so * we can see what’s generated DATA: mime_repository TYPE REF TO if_mr_api, url TYPE string VALUE ‘/SAP/BC/WebDynpro/SAP/Z_NETWORK_EXAMPLE/dump.xml’. mime_repository = cl_mime_repository_api=>get_api( ). CALL METHOD mime_repository->put EXPORTING i_url = URL i_content = content i_suppress_package_dialog = abap_true. ENDMETHOD. Of course the coding of this method is a long and explicit and the usage of select statements should be avoided in the MVC concept. But the focus here is to understand the generation of the XML data and not on nifty programming. As a result you’ll get a nice network chart: 
I have some issues while creating this demo. Your help on this would be highly appreciated.
Thanks