Xmldom, xslprocessor package and namespace

Question

Hello,
First as I'm a newbie, is there a complete documentation on XML DB for developpers in oracle.com ?
Now my problem : I'm using in PLSQL xmldom, xslprocessor package with XPATH method to retrieve some information.
I have tested the code and it works except when I have this in the XML file :
xmlns="x-schema:OpenShipments.xdr"
THIS IS THE CODE I USE ( xmldom, xslprocessor are encapsulated ):
FUNCTION Extract_Info( p_file_path IN VARCHAR2 -- path of the file, sample : /u01/E11T/e11tappl/als/11.5.0/
,p_file_name IN VARCHAR2 -- name of the file : sample UPS_1.xml
          ,p_nodelist IN VARCHAR2 -- list of XML nodes such as '/OpenShipments/OpenShipment/Receiver'
          ,p_node_attribute IN VARCHAR2 -- the node or attribute to analyse, sample for UPS : AddressLine1
          ,p_position IN NUMBER -- if 1 the first value retrieved is given, if 2 the second, if 3 ....
          ,p_message OUT VARCHAR2 -- error message
          ,p_res OUT VARCHAR2 -- error code 'S' if success, 'E' if error
RETURN VARCHAR2
IS
l_return VARCHAR2(2000);
BEGIN
DECLARE
doc_out xmldom.domdocument;
file_in VARCHAR2(150):=p_file_path || p_file_name; ---
l_nodelist xmldom.domnodelist;
l_node xmldom.domnode;
l NUMBER;
l_message VARCHAR2(2000):=NULL;
l_res VARCHAR2(1):='S';
BEGIN
ALS_XML_PK.parse_document (file_in,doc_out);
l_nodelist:=ALS_XML_PK.selected_nodes (doc_out,p_nodelist);
l_node := xmldom.item (l_nodelist,p_position-1);
l_return:=xslprocessor.valueof (l_node,p_node_attribute);
-- to check number of nodes
-- l:=xmldom.getlength(l_nodelist);
--dbms_output.put_line('nombre de node ' || xmldom.getlength(l_nodelist));
--dbms_output.put_line('valeur ' || NVL(l_return,'IS NULL !!'));
EXCEPTION
WHEN xmldom.index_size_err
THEN
l_res:='E';
     l_message:='INDEX SIZE error';
--raise_application_error (-20120, 'INDEX SIZE error');
WHEN xmldom.domstring_size_err
THEN
l_res:='E';
     l_message:='String SIZE error';
--raise_application_error (-20120, 'String SIZE error');
WHEN xmldom.hierarchy_request_err
THEN
l_res:='E';
     l_message:='Hierarchy request error';
--raise_application_error (-20120,'Hierarchy request error');
WHEN xmldom.wrong_document_err
THEN
l_res:='E';
     l_message:='Wrong doc error';
--raise_application_error (-20120, 'Wrong doc error');
WHEN xmldom.invalid_character_err
THEN
l_res:='E';
     l_message:='Invalid CHAR error';
--raise_application_error (-20120, 'Invalid CHAR error');
WHEN xmldom.no_data_allowed_err
THEN
l_res:='E';
     l_message:='Nod data allowed error';
--raise_application_error (-20120,'Nod data allowed error');
WHEN xmldom.no_modification_allowed_err
THEN
l_res:='E';
     l_message:='No MOD allowed error';
--raise_application_error (-20120,'No MOD allowed error');
WHEN xmldom.not_found_err
THEN
l_res:='E';
     l_message:='NOT FOUND error';
--raise_application_error (-20120, 'NOT FOUND error');
WHEN xmldom.not_supported_err
THEN
l_res:='E';
     l_message:='NOT supported error';
--raise_application_error (-20120,'NOT supported error');
WHEN xmldom.inuse_attribute_err
THEN
l_res:='E';
     l_message:='IN USE attr error';
--raise_application_error (-20120, 'IN USE attr error');
END;
-- return value extracted
RETURN l_return;
END Extract_Info;
---> error is with namespace :
ORA-20100: Error occurred while parsing: Permission denied
Message was edited by:
ROMEO_G

Answer 1

SQL> set serveroutput on
SQL> declare
  2    xmldoc1 xmltype := xmltype (
  3  '<OpenShipments>
  4    <OpenShipment ProcessStatus="TESTONS">
  5      <Receiver>
  6        <CompanyName>DUMMY</CompanyName>
  7        <ContactPerson>000000</ContactPerson>
  8        <AddressLine1>DUMM</AddressLine1>
  9        <AddressLine2>DUMDUM</AddressLine2>
10        <AddressLine3/>
11        <City>PROUT</City>
12        <CountryCode>BE</CountryCode>
13        <PostalCode>1111</PostalCode>
14        <Residential>0</Residential>
15        <CustomerIDNumber>0</CustomerIDNumber>
16        <Phone>0</Phone>
17        <TaxIDNumber>0</TaxIDNumber>
18        <LocationID/>
19        <UpsAccountNumber>0</UpsAccountNumber>
20        <RecordOwner>0</RecordOwner>
21      </Receiver>
22      <Shipment>
23        <ServiceLevel>1</ServiceLevel>
24        <PackageType/>
25        <NumberOfPackages>1</NumberOfPackages>
26        <ShipmentActualWeight>1</ShipmentActualWeight>
27        <DescriptionOfGoods/>
28        <Reference1/>
29        <Reference2/>
30        <DocumentOnly>1</DocumentOnly>
31        <GoodsNotInFreeCirculation>1</GoodsNotInFreeCirculation>
32        <BillingOption>1</BillingOption>
33        <DeclareValue>
34          <Amount>1</Amount>
35        </DeclareValue>
36      </Shipment>
37    </OpenShipment>
38  </OpenShipments>');
39
40    xmldoc2 xmltype := xmltype (
41  '<OpenShipments xmlns="x-schema:OpenShipments.xdr">
42    <OpenShipment ProcessStatus="TESTONS">
43      <Receiver>
44        <CompanyName>DUMMY</CompanyName>
45        <ContactPerson>000000</ContactPerson>
46        <AddressLine1>DUMM</AddressLine1>
47        <AddressLine2>DUMDUM</AddressLine2>
48        <AddressLine3/>
49        <City>PROUT</City>
50        <CountryCode>BE</CountryCode>
51        <PostalCode>1111</PostalCode>
52        <Residential>0</Residential>
53        <CustomerIDNumber>0</CustomerIDNumber>
54        <Phone>0</Phone>
55        <TaxIDNumber>0</TaxIDNumber>
56        <LocationID/>
57        <UpsAccountNumber>0</UpsAccountNumber>
58        <RecordOwner>0</RecordOwner>
59      </Receiver>
60      <Shipment>
61        <ServiceLevel>1</ServiceLevel>
62        <PackageType/>
63        <NumberOfPackages>1</NumberOfPackages>
64        <ShipmentActualWeight>1</ShipmentActualWeight>
65        <DescriptionOfGoods/>
66        <Reference1/>
67        <Reference2/>
68        <DocumentOnly>1</DocumentOnly>
69        <GoodsNotInFreeCirculation>1</GoodsNotInFreeCirculation>
70        <BillingOption>1</BillingOption>
71        <DeclareValue>
72          <Amount>1</Amount>
73        </DeclareValue>
74      </Shipment>
75    </OpenShipment>
76  </OpenShipments>');
77
78    DOC DBMS_XMLDOM.DOMDOCUMENT;
79    NL DBMS_XMLDOM.DOMNODELIST;
80  begin
81
82    DOC := DBMS_XMLDOM.newDOMDocument(xmldoc1);
83    NL  := DBMS_XSLPROCESSOR.selectNodes(dbms_xmldom.makeNode(DOC),'/OpenShipments/OpenShipment/Receiver');
84    dbms_output.put_line('NodeList.length() = ' || DBMS_XMLDOM.GETLENGTH(NL));
85
86    DOC := DBMS_XMLDOM.newDOMDocument(xmldoc2);
87    NL  := DBMS_XSLPROCESSOR.selectNodes(dbms_xmldom.makeNode(DOC),'/OpenShipments/OpenShipment/Receiver');
88    dbms_output.put_line('NodeList.length() = ' || DBMS_XMLDOM.GETLENGTH(NL));
89
90    NL  := DBMS_XSLPROCESSOR.selectNodes(dbms_xmldom.makeNode(DOC),'/OpenShipments/OpenShipment/Receiver','xmlns="x-schema:OpenShipments.
xdr"');
91    dbms_output.put_line('NodeList.length() = ' || DBMS_XMLDOM.GETLENGTH(NL));
92
93  end;
94
95  /
NodeList.length() = 1
NodeList.length() = 0
NodeList.length() = 1
PL/SQL procedure successfully completed.
Elapsed: 00:00:00.12
SQL>The doc does not show that SELECTNODES takes a third argument, which is the namespace prefix mappings for the document. However a describe of the package does show that there is a third agument. A doc bug has been filed.