Reading XML with ABAP

[Former Member]

I've got the XML file (below; second snippet) loaded into memory. However, the call to l_rif_document->find_from_path_ns( ) at the bottom of the first snippet returns nothing. What must I do to return a reference to the root node so I can then loop the child nodes and get the data I need?

data: l_rif_ixml      type ref to if_ixml,
      l_rif_factory   type ref to if_ixml_stream_factory,
      l_rif_parser    type ref to if_ixml_parser,
      l_rif_istream   type ref to if_ixml_istream,
      l_rif_document  type ref to if_ixml_document,
      l_rif_node      type ref to if_ixml_node,
      l_rif_element   type ref to if_ixml_element.

  " Create central factor object
  l_rif_ixml = cl_ixml=>create( ).

  " Create factory object for the data stream
  l_rif_factory = l_rif_ixml->create_stream_factory( ).

  " Create input stream
  l_rif_istream = l_rif_factory->create_istream_string( string = p_data_in ).

  " Create document
  l_rif_document = l_rif_ixml->create_document( ).

  " Create XML parser
  l_rif_parser = l_rif_ixml->create_parser( document        = l_rif_document
                                            stream_factory  = l_rif_factory
                                            istream         = l_rif_istream ).

  " Parse input stream
  l_rif_parser->parse( ).

  l_rif_element = l_rif_document->find_from_path_ns( default_uri = space*
                                                     *path = '/MYREPORT' ).

And this is the XML document:

<MYREPORT>
	<RECORD>
	  <A-CARRIER-NAME>ACME HEALTH PLAN</A-CARRIER-NAME> 
	  <B-CARRIER-CODE>DAI1</B-CARRIER-CODE> 
	  <C-STATUS>Active Billing</C-STATUS> 
	  <D-TYPE>1-PARTICIPANT</D-TYPE> 
	  <E-NAME>DOE, JOHN</E-NAME> 
	  <F-STREET-ADDRESS>100 MAIN STREET</F-STREET-ADDRESS> 
	  <G-CITY>WESTON</G-CITY>                                                         
	  <H-STATE>KY</H-STATE> 
	  <I-ZIP>90210</I-ZIP> 
	  <J-EMPLOYEE-ID /> 
	  <K-SSN></K-SSN> 
	  <L-ESSN></L-ESSN> 
	  <M-DOB>01-01-45</M-DOB> 
	  <N-SEX>M</N-SEX> 
	  <O-RELT>EMP</O-RELT> 
	  <P-COVERAGE-TYPE>Medical</P-COVERAGE-TYPE> 
	  <Q-OPTION-CODE>A</Q-OPTION-CODE> 
	  <R-FAMILY-STATUS>3</R-FAMILY-STATUS> 
	  <S-COBRA-CODE>C</S-COBRA-CODE> 
	  <T-QE-DATE>01-31-08</T-QE-DATE> 
	  <U-BENTERM-DATE>02-29-08</U-BENTERM-DATE> 
	  <V-COBRA-ELIG-STARTS>03-01-08</V-COBRA-ELIG-STARTS> 
	  <W-COBRA-ELIG-ENDS>08-31-09</W-COBRA-ELIG-ENDS> 
	  <X-PAID-THRU>05-31-08</X-PAID-THRU> 
	  <Y-GRACE-ENDING>07-02-08</Y-GRACE-ENDING> 
	  <ZA-DIV>A1</ZA-DIV> 
	  <ZB-UNIT>41</ZB-UNIT> 
	  <ZC-CHANGE /> 
	  <ZD-FROM /> 
	  <ZE-TO /> 
	  <ZF-DOCID>43535234</ZF-DOCID> 
	  <ZG-BENEFITS-CLASS /> 
	</RECORD>
</MYREPORT>

[Former Member]

I've got the XML file (below; second snippet) loaded into memory. However, the call to l_rif_document->find_from_path_ns( ) at the bottom of the first snippet returns nothing. What must I do to return a reference to the root node so I can then loop the child nodes and get the data I need?

data: l_rif_ixml      type ref to if_ixml,
      l_rif_factory   type ref to if_ixml_stream_factory,
      l_rif_parser    type ref to if_ixml_parser,
      l_rif_istream   type ref to if_ixml_istream,
      l_rif_document  type ref to if_ixml_document,
      l_rif_node      type ref to if_ixml_node,
      l_rif_element   type ref to if_ixml_element.

  " Create central factor object
  l_rif_ixml = cl_ixml=>create( ).

  " Create factory object for the data stream
  l_rif_factory = l_rif_ixml->create_stream_factory( ).

  " Create input stream
  l_rif_istream = l_rif_factory->create_istream_string( string = p_data_in ).

  " Create document
  l_rif_document = l_rif_ixml->create_document( ).

  " Create XML parser
  l_rif_parser = l_rif_ixml->create_parser( document        = l_rif_document
                                            stream_factory  = l_rif_factory
                                            istream         = l_rif_istream ).

  " Parse input stream
  l_rif_parser->parse( ).

  l_rif_element = l_rif_document->find_from_path_ns( default_uri = space*
                                                     *path = '/MYREPORT' ).

And this is the XML document:

<MYREPORT>
	<RECORD>
	  <A-CARRIER-NAME>ACME HEALTH PLAN</A-CARRIER-NAME> 
	  <B-CARRIER-CODE>DAI1</B-CARRIER-CODE> 
	  <C-STATUS>Active Billing</C-STATUS> 
	  <D-TYPE>1-PARTICIPANT</D-TYPE> 
	  <E-NAME>DOE, JOHN</E-NAME> 
	  <F-STREET-ADDRESS>100 MAIN STREET</F-STREET-ADDRESS> 
	  <G-CITY>WESTON</G-CITY>                                                         
	  <H-STATE>KY</H-STATE> 
	  <I-ZIP>90210</I-ZIP> 
	  <J-EMPLOYEE-ID /> 
	  <K-SSN></K-SSN> 
	  <L-ESSN></L-ESSN> 
	  <M-DOB>01-01-45</M-DOB> 
	  <N-SEX>M</N-SEX> 
	  <O-RELT>EMP</O-RELT> 
	  <P-COVERAGE-TYPE>Medical</P-COVERAGE-TYPE> 
	  <Q-OPTION-CODE>A</Q-OPTION-CODE> 
	  <R-FAMILY-STATUS>3</R-FAMILY-STATUS> 
	  <S-COBRA-CODE>C</S-COBRA-CODE> 
	  <T-QE-DATE>01-31-08</T-QE-DATE> 
	  <U-BENTERM-DATE>02-29-08</U-BENTERM-DATE> 
	  <V-COBRA-ELIG-STARTS>03-01-08</V-COBRA-ELIG-STARTS> 
	  <W-COBRA-ELIG-ENDS>08-31-09</W-COBRA-ELIG-ENDS> 
	  <X-PAID-THRU>05-31-08</X-PAID-THRU> 
	  <Y-GRACE-ENDING>07-02-08</Y-GRACE-ENDING> 
	  <ZA-DIV>A1</ZA-DIV> 
	  <ZB-UNIT>41</ZB-UNIT> 
	  <ZC-CHANGE /> 
	  <ZD-FROM /> 
	  <ZE-TO /> 
	  <ZF-DOCID>43535234</ZF-DOCID> 
	  <ZG-BENEFITS-CLASS /> 
	</RECORD>
</MYREPORT>

[BGarcia]

Hello Steve,

At first glance it seems all OK. So I've tried your code, and put some contents of your XML elements to a string variable. I've executed it and l_rif_element variable was correctly bound.

Here's your example, but declaring some XML elements inside the code:

data: l_rif_ixml      type ref to if_ixml,
      l_rif_factory   type ref to if_ixml_stream_factory,
      l_rif_parser    type ref to if_ixml_parser,
      l_rif_istream   type ref to if_ixml_istream,
      l_rif_document  type ref to if_ixml_document,
      l_rif_node      type ref to if_ixml_node,
      l_rif_element   type ref to if_ixml_element.
DATA: lv_string       TYPE string.

  lv_string = '<MYREPORT>'.
  CONCATENATE lv_string '<RECORD>' INTO lv_string SEPARATED BY SPACE.
  CONCATENATE lv_string '<A-CARRIER-NAME>ACME HEALTH PLAN</A-CARRIER-NAME>' INTO lv_string SEPARATED BY SPACE.
  CONCATENATE lv_string '<B-CARRIER-CODE>DAI1</B-CARRIER-CODE>' INTO lv_string SEPARATED BY SPACE.
  CONCATENATE lv_string '<C-STATUS>Active Billing</C-STATUS>' INTO lv_string SEPARATED BY SPACE.
  CONCATENATE lv_string '<J-EMPLOYEE-ID />' INTO lv_string SEPARATED BY SPACE.
  CONCATENATE lv_string '<K-SSN></K-SSN> ' INTO lv_string SEPARATED BY SPACE.
  CONCATENATE lv_string '</RECORD>' INTO lv_string SEPARATED BY SPACE.
  CONCATENATE lv_string '</MYREPORT>' INTO lv_string SEPARATED BY SPACE.

  " Create central factor object
  l_rif_ixml = cl_ixml=>create( ).

  " Create factory object for the data stream
  l_rif_factory = l_rif_ixml->create_stream_factory( ).

  " Create input stream
  l_rif_istream = l_rif_factory->create_istream_string( string = lv_string ).

  " Create document
  l_rif_document = l_rif_ixml->create_document( ).

  " Create XML parser
  l_rif_parser = l_rif_ixml->create_parser( document        = l_rif_document
                                            stream_factory  = l_rif_factory
                                            istream         = l_rif_istream ).

  " Parse input stream
  l_rif_parser->parse( ).

  l_rif_element = l_rif_document->find_from_path_ns( default_uri = space
                                                     path = '/MYREPORT' ).
  lv_string = l_rif_element->get_name( ).

Kind regards.

Bruno

[Former Member]

Curious. Something must be wrong with how I'm loading the XML file.

In frustration I switched to another approach: using 'SCMS_STRING_TO_XSTRING' and 'SMUM_XML_PARSE'. This is working. Go figure.