Simple Transformations: How deserialize xmlns attributes?

Question

Hello all,
during deserializing Simple Transformations ignore surplus attributes in the xml input stream. With one exception: u201Exmlnsu201C (namespace) attributes apparently are not ignored.
Take for example the xml file:
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<CITIES someattribute="XYZ">
  <CITY>Hamburg</CITY>
  <CITY>Berlin</CITY>
</CITIES>
This file can be processed successfully by the simple transformation:
<?sap.transform simple?>
<tt:transform xmlns:tt="http://www.sap.com/transformation-templates">
  <tt:root name="CITIES"></tt:root>
  <tt:template>
    <CITIES>
      <tt:loop ref="CITIES">
        <CITY tt:value-ref="CITY"></CITY>
      </tt:loop>
    </CITIES>
  </tt:template>
</tt:transform>
When trying to process the following xml file by the same transformation, however, a CX_ST_MATCH_ELEMENT error is thrown.
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<CITIES xmlns="XYZ">
  <CITY>Hamburg</CITY>
  <CITY>Berlin</CITY>
</CITIES>
How can xmlns attributes be deserialized (ignored) with simple transformations?
Thanks for any hint!
Simon
PS:
To reproduce the error the following ABAP can be used in combination with the quoted simple transformation:
REPORT  ztestsd13.
TYPES: BEGIN OF lty_cities,
        city(20) TYPE c,
       END OF lty_cities.
DATA: ls_cities TYPE lty_cities,
      lt_cities TYPE TABLE OF lty_cities,
      lv_xml TYPE string,
      lv_cities_element TYPE string,
      lv_error TYPE string,
      lo_error TYPE REF TO cx_transformation_error.
PARAMETERS: lp_incns TYPE boolean DEFAULT ''.
CASE lp_incns.
  WHEN 'X'.
    lv_cities_element = '<CITIES xmlns="XYZ">'.
  WHEN OTHERS.
    lv_cities_element = '<CITIES someattribute="XYZ">'.
ENDCASE.
CONCATENATE:
'<?xml version="1.0" encoding="UTF-8" standalone="no"?>'
lv_cities_element
'<CITY>Hamburg</CITY>'
'<CITY>Berlin</CITY>'
'</CITIES>' INTO lv_xml.
TRY.
    CALL TRANSFORMATION ('Z_CITIES')
      SOURCE XML lv_xml
      RESULT cities = lt_cities.
  CATCH cx_transformation_error INTO lo_error.
    lv_error = lo_error->get_text( ).
    WRITE: 'Transformation not successful'.
    SKIP.
    WRITE: lv_error.
    EXIT.
ENDTRY.
WRITE: 'Transformation successful'.
SKIP.
LOOP AT lt_cities INTO ls_cities.
  WRITE: / ls_cities-city.
ENDLOOP.
Edited by: Simon Dähnhardt on Oct 20, 2009 6:04 PM

Answer 1

first of all your xml isn't well formatted
root element must be only one like
<?xml version="1.0" encoding="UTF-8"?>
<root>
<result xmlns="http://xmlns.oracle.com/oracleas/schema/dbserver_audittrail-11_2.xsd">
<DB_User>DBSNMP</DB_User>
<Userhost>localhost.localdomain</Userhost>
</result>
<result xmlns="http://xmlns.oracle.com/oracleas/schema/dbserver_audittrail-11_2.xsd">
<DB_User>DBSNMP</DB_User>
<Userhost>localhost.localdomain</Userhost>
</result>
</root>or may be in your case
<?xml version="1.0" encoding="UTF-8"?>
<result xmlns="http://xmlns.oracle.com/oracleas/schema/dbserver_audittrail-11_2.xsd">
<DB_User>DBSNMP</DB_User>
<Userhost>localhost.localdomain</Userhost>
</result>for remove you can use xslt as example for xmltransform
SQL> select * from v$version where rownum=1;
BANNER
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
SQL>
SQL> with t as
  2  (select xmltype(
  3  '<?xml version="1.0" encoding="UTF-8"?>
  4  <result xmlns="http://xmlns.oracle.com/oracleas/schema/dbserver_audittrail-11_2.xsd">
  5  <DB_User xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">DBSNMP</DB_User>
  6  <Userhost xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">localhost.localdomain</Userhost>
  7  </result>') xml from dual)
  8  --
  9  select xmltransform(t.xml, xmltype('<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
10  <xsl:output method="xml" indent="no"/>
11  <xsl:template match="*">
12      <xsl:element name="{local-name()}">
13        <xsl:apply-templates select="node()"/>
14      </xsl:element>
15  </xsl:template>
16  </xsl:stylesheet>'))
17  from t
18  /
XMLTRANSFORM(T.XML,XMLTYPE('<X
<?xml version="1.0" encoding="utf-8"?>
<result><DB_User>DBSNMP</DB_User><Userhost>localhost.localdomain</Userhost></res
SQL> --add
or try add local-name() to your main xquery
Edited by: AlexAnd on Dec 12, 2012 12:05 AM