Calling web service with utl_dbws and parsing the xml result with Xpath

I'm invoking a web service from the database(10.2.0.2.0) using sys.utl_dbws and all is working well. After executing response := sys.utl_dbws.invoke(call_, request); I execute dbms_output.put_line(substr(response.getstringval(),1,1500)); which results with:
<refCursor10gProcessResponse xmlns="http://xmlns.oracle.com/refCursor10g">
<result xmlns="http://xmlns.oracle.com/refCursor10g">
<Row xmlns="http://xmlns.oracle.com/pcbpel/adapter/db/ADM/SERVICES/GETST/">
<Column name="C_ID" sqltype="VARCHAR2">20292</Column>
<Column name="AYR" sqltype="VARCHAR2">2002</Column>
<Column name="EDT" sqltype="VARCHAR2">2002-06-13</Column>
<Column name="ETUS" sqltype="VARCHAR2">O</Column>
<Column name="PC" sqltype="NUMBER">537</Column>
<Column name="SG" sqltype="VARCHAR2"/>
<Column name="VD" sqltype="VARCHAR2">Y</Column>
<Column name="VR" sqltype="VARCHAR2">R</Column>
<Column name="TS" sqltype="VARCHAR2">31</Column>
<Column name="D" sqltype="VARCHAR2">I</Column>
<Column name="T" sqltype="VARCHAR2">1</Column>
<Column name="P" sqltype="VARCHAR2"/>
<Column name="MT" sqltype="VARCHAR2">2</Column>
<Column name="PTAT" sqltype="VARCHAR2"/>
</Row>
</result>
</refCursor10gProcessResponse>
How do I parse out just the value 20292 of Column name="C_ID" using xpath? I've tired but I don't think i have the xpath set up correctly:
dbms_output.put_line(response.extract('//result/Row/Column/child::text)','xmlns="http://xmlns.oracle.com/refCursor10g"').getstringval());
Error messgae is:
ORA-30625: method dispatch on NULL SELF argument is disallowed
ORA-06512: at "ADM.CONSUME_WEB_SERVICES", line 439
ORA-06512: at 3
Thanks

Tried getting by the attribute but I don't think I have the format correct:
dbms_output.put_line(response.extract('//result/Row/Column@C_ID/child::text()','xmlns="http://xmlns.oracle.com/pcbpel/adapter/db/ADM/SERVICES/GETST"').getstringval());
Here's the full soap response envelope:
<env:Envelope
xmlns:env="http://schemas.xmlsoap.org/soap/envelope/">
<env:Header/>
<env:Body>
<refCursor10gProcessResponse xmlns="http://xmlns.oracle.com/refCursor10g">
<result xmlns="http://xmlns.oracle.com/refCursor10g">
<Row xmlns="http://xmlns.oracle.com/pcbpel/adapter/db/ADM/SERVICES/GETST/">
<Column name="C_ID" sqltype="VARCHAR2">20292</Column>
<Column name="AYR" sqltype="VARCHAR2">2002</Column>
<Column name="EDT" sqltype="VARCHAR2">2002-06-13</Column>
<Column name="ETUS" sqltype="VARCHAR2">O</Column>
<Column name="PC" sqltype="NUMBER">537</Column>
<Column name="SG" sqltype="VARCHAR2"/>
<Column name="VD" sqltype="VARCHAR2">Y</Column>
<Column name="VR" sqltype="VARCHAR2">R</Column>
<Column name="TS" sqltype="VARCHAR2">31</Column>
<Column name="D" sqltype="VARCHAR2">I</Column>
<Column name="T" sqltype="VARCHAR2">1</Column>
<Column name="P" sqltype="VARCHAR2"/>
<Column name="MT" sqltype="VARCHAR2">2</Column>
<Column name="PTAT" sqltype="VARCHAR2"/>
</Row>
</result>
</refCursor10gProcessResponse>
</env:Body>
</env:Envelope>
Any thoughts?

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Hello, everyone.
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WS has unbounded return value:
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<soapenv:Header/>
<soapenv:Body>
<proc:getProcessList>
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and get a response:
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<env:Header/>
<env:Body>
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cs_qname_type_string CONSTANT sys.UTL_DBWS.qname
:= sys.UTL_DBWS.to_qname('http://www.w3.org/2001/XMLSchema', 'string') ;
cs_qname_type_int CONSTANT sys.UTL_DBWS.qname := sys.UTL_DBWS.to_qname('http://www.w3.org/2001/XMLSchema', 'int');
cs_qname_type_any CONSTANT sys.UTL_DBWS.qname
:= sys.UTL_DBWS.to_qname('http://www.w3.org/2001/XMLSchema', 'anyType') ;
cs_endpoint CONSTANT VARCHAR2(256) := 'http://server:8080/process-manager/ProcessManager';
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l_service_qname sys.UTL_DBWS.qname;
l_port_qname sys.UTL_DBWS.qname;
l_operation_qname sys.UTL_DBWS.qname;
l_h_service_call sys.UTL_DBWS.call;
l_params sys.UTL_DBWS.anydata_list;
l_ret_val SYS.ANYDATA;
BEGIN
l_service_qname := sys.UTL_DBWS.to_qname(NULL, 'ProcessManagerService');
l_service := sys.UTL_DBWS.create_service(l_service_qname);
l_port_qname := sys.UTL_DBWS.to_qname(NULL, 'ProcessListServiceBinding');
l_operation_qname := sys.UTL_DBWS.to_qname('http://processmanager.argustelecom.ru/', 'getProcessList');
l_h_service_call := sys.UTL_DBWS.create_call(l_service, l_port_qname, l_operation_qname);
sys.UTL_DBWS.set_target_endpoint_address(l_h_service_call, cs_endpoint);
-- return type
sys.UTL_DBWS.set_return_type(l_h_service_call, cs_qname_type_any);
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sys.UTL_DBWS.ADD_PARAMETER(l_h_service_call, 'processNameMask', cs_qname_type_string, 'ParameterMode.IN');
l_params(1) := anydata.convertvarchar2('*');
l_ret_val := sys.UTL_DBWS.invoke(l_h_service_call, l_params);
IF l_ret_val IS NULL THEN
DBMS_OUTPUT.put_line('l_ret_val is null');
ELSE
DBMS_OUTPUT.put_line('l_ret_val is not null');
END IF;
sys.UTL_DBWS.release_call(l_h_service_call);
END;
Edited by: Ilya on 03.12.2008 3:50

Hi Tony
I'm not sure if you would have solved your problem by now, but with my recent experience with the utl_dbws package, for doc lits with complex data types, you have to call the service with an XML request, as opposed to passing the param array.
If you still need details, reply accordingly.
Ta
cT

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--dbms_output.put_line('xml retrieved');
     exception
     when no_data_found then
          v_success_message := 'No xml found for application_key = '||p_application_key;
          raise v_procedure_error;
     end;
     message_handler.set_current_process('call web service');
-- create service
v_service_qname := utl_dbws.to_qname (null, 'xpertBridge');
v_service := utl_dbws.create_service (v_service_qname);
-- create call
v_port_qname := utl_dbws.to_qname (null, 'xpertBridgePort');
v_operation_qname :=
utl_dbws.to_qname
('http://m0154ukdox1/xpertBridgeEDSLV/services/xpertBridge',
'orcaAppUpload'
v_call := utl_dbws.create_call (v_service, v_port_qname, v_operation_qname);
-- set endpoint
utl_dbws.set_target_endpoint_address
(v_call,
'http://m0154ukdox1/xpertBridgeEDSLV/services/xpertBridge'
-- set type of input and output parameters
v_string_type_qname :=
utl_dbws.to_qname ('http://www.w3.org/2001/XMLSchema', 'string');
utl_dbws.add_parameter (v_call,
'orcaXml',
v_string_type_qname,
'ParameterMode.IN'
utl_dbws.add_parameter (v_call,
'interviewId',
v_string_type_qname,
'ParameterMode.OUT'
utl_dbws.add_parameter (v_call,
'status',
v_string_type_qname,
'ParameterMode.OUT'
utl_dbws.add_parameter (v_call,
'errorReason',
v_string_type_qname,
'ParameterMode.OUT'
utl_dbws.set_return_type (v_call, v_string_type_qname);
-- convert xmltype to string for call
select xmlserialize(document v_interview_xml)
into v_parameter_string
from dual;
v_params (1) := anydata.convertvarchar(v_parameter_string);
-- call
v_return := utl_dbws.invoke (v_call, v_params);
-- values which can be returned are Success / MessageError / ApplicationError
v_return_string := v_return.accessvarchar2;
dbms_output.put_line ('Message returned is: ' || nvl(v_return_string, 'No success message returned'));
-- retrieve out parameters
v_interviewId := v_params(2).accessvarchar2;
dbms_output.put_line ('Message returned is: ' || nvl(v_interviewId, 'No interviewId returned'));
v_statusType := v_params(3).accessvarchar2;
dbms_output.put_line ('Message returned is: ' || nvl(v_statusType, 'No status type returned'));
v_error_reason := v_params(4).accessvarchar2;
dbms_output.put_line ('Message returned is: ' || nvl(v_error_reason, 'No error reason returned'));
-- release call
utl_dbws.release_call ( v_call );
-- release services
utl_dbws.release_service ( v_service );
message_handler.set_module_finish;
exception
when others then
out_success_message := message_handler.formatted_error_message;
end call_web_service;
Here is an excerpt from the WSDL relating to the call being made:
     <xs:element name="orcaAppUpload">
                    <xs:annotation>
                         <xs:documentation xml:lang="en">Message payload XML</xs:documentation>
                    </xs:annotation>
                    <xs:complexType>
                         <xs:sequence>
                              <xs:element name="orcaXml" type="xs:string"/>
                         </xs:sequence>
                    </xs:complexType>
               </xs:element>
               <xs:element name="orcaAppUploadResponse">
                    <xs:complexType>
                         <xs:sequence>
                              <xs:element name="interviewId" type="xs:string">
                                   <xs:annotation>
                                        <xs:documentation xml:lang="en">Interview identifier used to access the interview from UI</xs:documentation>
                                   </xs:annotation>
                              </xs:element>
                              <xs:element name="status" type="tns:StatusType"/>
                              <xs:element name="errorReason" type="xs:string" minOccurs="0">
                                   <xs:annotation>
                                        <xs:documentation xml:lang="en">Only included if an error has occured </xs:documentation>
                                   </xs:annotation>
                              </xs:element>
                         </xs:sequence>
                    </xs:complexType>
               </xs:element>
               <xs:simpleType name="StatusType">
                    <xs:restriction base="xs:string">
                         <xs:enumeration value="Success"/>
                         <xs:enumeration value="MessageError">
                              <xs:annotation>
                                   <xs:documentation xml:lang="en">MessageError arises if the request payload was
rejected by xpertBridge. This might be because it does not validate against the
expected schema. Alternatively, a business rule is not satisfied.</xs:documentation>
                              </xs:annotation>
                         </xs:enumeration>
                         <xs:enumeration value="ApplicationError">
                              <xs:annotation>
                                   <xs:documentation xml:lang="en">ApplicationError would indicate application or system
error or exception occured in xpertBridge while processing the request.</xs:documentation>
                              </xs:annotation>
                         </xs:enumeration>
                    </xs:restriction>
               </xs:simpleType>
          </xs:schema>
     <wsdl:message name="orcaAppUploadReq">
          <wsdl:part name="orcaAppUpload" element="tns:orcaAppUpload"/>
     </wsdl:message>
     <wsdl:message name="orcaAppUploadResp">
          <wsdl:part name="orcaAppUploadResponse" element="tns:orcaAppUploadResponse"/>
     </wsdl:message>
     <wsdl:portType name="xpertBridgePort">
          <wsdl:operation name="orcaAppUpload">
               <wsdl:documentation>Upload (typically paper) application from ORCA/Ingenium</wsdl:documentation>
               <wsdl:input message="tns:orcaAppUploadReq"/>
               <wsdl:output message="tns:orcaAppUploadResp"/>
          </wsdl:operation>
     </wsdl:portType>
etc.
The error being returned is the following:
ostp_to_xpb.call_web_service.call web service.ORA-29532: Java call terminated by uncaught Java exception: unexpected element name: expected=interviewId, actual=status
Initially I started the params at params(0) but when I received the response above I thought it might solve the problem by starting at 1 - try anything :-) but still had the same response.
I'm now out of ideas!

UTL_DBWS is not part of XDB, XDB is more about being the web service, rather than calling a web service. Here's an example of using UTL_HTTP to test a XML DB Database Native Web Service which may help
SQL*Plus: Release 11.2.0.1.0 Production on Wed Jun 17 08:23:14 2009
Copyright (c) 1982, 2009, Oracle. All rights reserved.
SQL> spool password.log
SQL> --
SQL> connect sys/oracle as sysdba
Connected.
SQL> --
SQL> def USERNAME=DBNWS
SQL> --
SQL> def PASSWORD=DBNWS
SQL> --
SQL> def HOSTNAME=&1
SQL> --
SQL> DROP USER &USERNAME CASCADE
2 /
old   1: DROP USER &USERNAME CASCADE
new   1: DROP USER DBNWS CASCADE
User dropped.
SQL> grant connect, resource to &USERNAME identified by &PASSWORD
2 /
old   1: grant connect, resource to &USERNAME identified by &PASSWORD
new   1: grant connect, resource to DBNWS identified by DBNWS
Grant succeeded.
SQL> begin
2    dbms_network_acl_admin.drop_acl('localhost.xml');
3 end;
4 /
PL/SQL procedure successfully completed.
SQL> begin
2    dbms_network_acl_admin.create_acl('localhost.xml', 'ACL for &HOSTNAME', '&USERNAME', true, 'connect');
3    dbms_network_acl_admin.assign_acl('localhost.xml', '&HOSTNAME');
4 end;
5 /
old   2:   dbms_network_acl_admin.create_acl('localhost.xml', 'ACL for &HOSTNAME', '&USERNAME', true, 'connect');
new   2:   dbms_network_acl_admin.create_acl('localhost.xml', 'ACL for localhost', 'DBNWS', true, 'connect');
old   3:   dbms_network_acl_admin.assign_acl('localhost.xml', '&HOSTNAME');
new   3:   dbms_network_acl_admin.assign_acl('localhost.xml', 'localhost');
PL/SQL procedure successfully completed.
SQL> COMMIT
2 /
Commit complete.
SQL> GRANT XDB_WEBSERVICES TO &USERNAME
2 /
old   1: GRANT XDB_WEBSERVICES TO &USERNAME
new   1: GRANT XDB_WEBSERVICES TO DBNWS
Grant succeeded.
SQL> GRANT XDB_WEBSERVICES_OVER_HTTP TO &USERNAME
2 /
old   1: GRANT XDB_WEBSERVICES_OVER_HTTP TO &USERNAME
new   1: GRANT XDB_WEBSERVICES_OVER_HTTP TO DBNWS
Grant succeeded.
SQL> connect &USERNAME/&PASSWORD
Connected.
SQL> --
SQL> create or replace function GET_SQRT (INPUT_VALUE number) return number
2 as
3 begin
4    return SQRT(2);
5 end;
6 /
Function created.
SQL> select GET_SQRT(2)
2    from dual
3 /
GET_SQRT(2)
1.41421356
SQL> VAR URL VARCHAR2(4000)
SQL> --
SQL> BEGIN
2    :url :=   'http://&USERNAME:&PASSWORD@&HOSTNAME:' || dbms_xdb.getHttpPort() || '/orawsv/&USERNAME/GET_SQRT';
3 end;
4 /
old   2:   :url :=   'http://&USERNAME:&PASSWORD@&HOSTNAME:' || dbms_xdb.getHttpPort() || '/orawsv/&USERNAME/GET_SQRT';
new   2:   :url :=   'http://DBNWS:DBNWS@localhost:' || dbms_xdb.getHttpPort() || '/orawsv/DBNWS/GET_SQRT';
PL/SQL procedure successfully completed.
SQL> print url
URL
http://DBNWS:DBNWS@localhost:80/orawsv/DBNWS/GET_SQRT
SQL> --
SQL> set long 100000 pages 0 lines 256
SQL> --
SQL> select     httpuritype( :url || '?wsdl' ).getXML() from dual
2 /
<definitions name="GET_SQRT" targetNamespace="http://xmlns.oracle.com/orawsv/DBNWS/GET_SQRT" xmlns="http://schemas.xmlsoap.org/wsdl/
" xmlns:tns="http://xmlns.oracle.com/orawsv/DBNWS/GET_SQRT" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:soap="http://
schemas.xmlsoap.org/wsdl/soap/">
<types>
    <xsd:schema targetNamespace="http://xmlns.oracle.com/orawsv/DBNWS/GET_SQRT" elementFormDefault="qualified">
      <xsd:element name="SNUMBER-GET_SQRTInput">
        <xsd:complexType>
          <xsd:sequence>
            <xsd:element name="INPUT_VALUE-NUMBER-IN" type="xsd:double"/>
          </xsd:sequence>
        </xsd:complexType>
      </xsd:element>
      <xsd:element name="GET_SQRTOutput">
        <xsd:complexType>
          <xsd:sequence>
            <xsd:element name="RETURN" type="xsd:double"/>
          </xsd:sequence>
        </xsd:complexType>
      </xsd:element>
    </xsd:schema>
</types>
<message name="GET_SQRTInputMessage">
    <part name="parameters" element="tns:SNUMBER-GET_SQRTInput"/>
</message>
<message name="GET_SQRTOutputMessage">
    <part name="parameters" element="tns:GET_SQRTOutput"/>
</message>
<portType name="GET_SQRTPortType">
    <operation name="GET_SQRT">
      <input message="tns:GET_SQRTInputMessage"/>
      <output message="tns:GET_SQRTOutputMessage"/>
    </operation>
</portType>
<binding name="GET_SQRTBinding" type="tns:GET_SQRTPortType">
    <soap:binding style="document" transport="http://schemas.xmlsoap.org/soap/http"/>
    <operation name="GET_SQRT">
      <soap:operation soapAction="GET_SQRT"/>
      <input>
        <soap:body parts="parameters" use="literal"/>
      </input>
      <output>
        <soap:body parts="parameters" use="literal"/>
      </output>
    </operation>
</binding>
<service name="GET_SQRTService">
    <documentation>Oracle Web Service</documentation>
    <port name="GET_SQRTPort" binding="tns:GET_SQRTBinding">
      <soap:address location="http://localhost:80/orawsv/DBNWS/GET_SQRT"/>
    </port>
</service>
</definitions>
SQL> set serveroutput on
SQL> --
SQL> DECLARE
2    V_SOAP_REQUEST      XMLTYPE := XMLTYPE(
3 '<SOAP-ENV:Envelope xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/" xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/
encoding/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
4          <SOAP-ENV:Body>
5                  <m:SNUMBER-GET_SQRTInput xmlns:m="http://xmlns.oracle.com/orawsv/&USERNAME/GET_SQRT">
6                          <m:INPUT_VALUE-NUMBER-IN>2</m:INPUT_VALUE-NUMBER-IN>
7                  </m:SNUMBER-GET_SQRTInput>
8          </SOAP-ENV:Body>
9 </SOAP-ENV:Envelope>');
10    V_SOAP_REQUEST_TEXT CLOB := V_SOAP_REQUEST.getClobVal();
11    V_REQUEST           UTL_HTTP.REQ;
12    V_RESPONSE          UTL_HTTP.RESP;
13    V_BUFFER            VARCHAR2(1024);
14 BEGIN
15
16    V_REQUEST := UTL_HTTP.BEGIN_REQUEST(URL => :URL, METHOD => 'POST');
17    UTL_HTTP.SET_HEADER(V_REQUEST, 'User-Agent', 'Mozilla/4.0');
18    V_REQUEST.METHOD := 'POST';
19    UTL_HTTP.SET_HEADER (R => V_REQUEST, NAME => 'Content-Length', VALUE => DBMS_LOB.GETLENGTH(V_SOAP_REQUEST_TEXT));
20    UTL_HTTP.WRITE_TEXT (R => V_REQUEST, DATA => V_SOAP_REQUEST_TEXT);
21
22    V_RESPONSE := UTL_HTTP.GET_RESPONSE(V_REQUEST);
23    LOOP
24      UTL_HTTP.READ_LINE(V_RESPONSE, V_BUFFER, TRUE);
25      DBMS_OUTPUT.PUT_LINE(V_BUFFER);
26    END LOOP;
27    UTL_HTTP.END_RESPONSE(V_RESPONSE);
28 EXCEPTION
29    WHEN UTL_HTTP.END_OF_BODY THEN
30      UTL_HTTP.END_RESPONSE(V_RESPONSE);
31 END;
32 /
old   5:                <m:SNUMBER-GET_SQRTInput xmlns:m="http://xmlns.oracle.com/orawsv/&USERNAME/GET_SQRT">
new   5:                <m:SNUMBER-GET_SQRTInput xmlns:m="http://xmlns.oracle.com/orawsv/DBNWS/GET_SQRT">
<?xml version="1.0" ?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/">
<soap:Body>
<GET_SQRTOutput xmlns="http://xmlns.oracle.com/orawsv/DBNWS/GET_SQRT">
<RETURN>1.41421356237309504880168872420969807857</RETURN>
</GET_SQRTOutput>
</soap:Body>
</soap:Envelope>
PL/SQL procedure successfully completed.
SQL> set serveroutput on
SQL> --
SQL>
SQL>

Calling web service from oracle forms fails with ORA_JAVA.JAVA_ERROR

Problem Description:
I'm following the steps as per the doc:
http://www.oracle.com/technology/products/forms/htdocs/10gr2/howto/webservicefromforms/ws_10_1_3_from_forms.html
to create a java stub to call external web service and then use java importer in oracle forms to call this web service from oracle forms.
WSDL for external web service used is http://www.webservicex.net/CurrencyConverter.asmx?wsdl
Calling the web service using JDeveloper works fine but from Oracle Forms returns ORA_JAVA.JAVA_ERROR; Unable to call out to Java, Invalid object type for argument 1
The code from oracle form to call web service is as below:
DECLARE
jo ora_java.jobject;
rv ora_java.jobject;
ex ora_java.jobject;
outString varchar2(2000);
BEGIN
jo:= CurrencyConvertorStub.new;
--This will get the exchange rate from US Dollars to UK Sterling.
rv:= CurrencyConvertorStub.ConversionRate(jo,'CAD','USD');
message (float_.floatValue(RV));
EXCEPTION
WHEN ORA_JAVA.JAVA_ERROR then
message('Unable to call out to Java, ' ||ORA_JAVA.LAST_ERROR);
WHEN ORA_JAVA.EXCEPTION_THROWN then
ex := ORA_JAVA.LAST_EXCEPTION;
outString := Exception_.toString(ex);
message(outString);
END;
Any help/ideas on this is greatly appreciated. Thanks.

Yes, it is the message line - so basically this call fails => rv:= CurrencyConvertorStub.ConversionRate(jo,'CAD','USD'); and control goes in the exception block
WHEN ORA_JAVA.JAVA_ERROR then
message('Unable to call out to Java, ' ||ORA_JAVA.LAST_ERROR);
Below is the code from java stub that was generated using JDeveloper by using web services stub/skeleton and associating the WSDL
public Double ConversionRate(String FromCurrency, String ToCurrency) throws Exception
URL endpointURL = new URL(endpoint);
Envelope requestEnv = new Envelope();
Body requestBody = new Body();
Vector requestBodyEntries = new Vector();
String wrappingName = "ConversionRate";
String targetNamespace = "http://www.webserviceX.NET/";
Vector requestData = new Vector();
requestData.add(new Object[] {"FromCurrency", FromCurrency});
requestData.add(new Object[] {"ToCurrency", ToCurrency});
requestBodyEntries.addElement(toElement(wrappingName, targetNamespace, requestData));
requestBody.setBodyEntries(requestBodyEntries);
requestEnv.setBody(requestBody);
Message msg = new Message();
msg.setSOAPTransport(m_httpConnection);
msg.send(endpointURL, "http://www.webserviceX.NET/ConversionRate", requestEnv);
Envelope responseEnv = msg.receiveEnvelope();
Body responseBody = responseEnv.getBody();
Vector responseData = responseBody.getBodyEntries();
return (Double)fromElement((Element)responseData.elementAt(0), java.lang.Double.class);
}

Calling web Service from the Custom Adapter.Is it Possible?

Hi Experts,
I am having requirment in which i have to cal com.sap.aii.mapping.lookup.LookupService for calling web Service from the Custom Adapter.Is it Possible?
Regards,
Rajesh.D

Hi Rajesh..
Just looking the problem in another angle.. if there is no constraint that you have to use XI specific API to call the web service, why dont you use usual Java API used for calling a web service inside you custom adapter (I have Microsoft background.. donno exactly how it is done in Java,, but in .NET kind of a language it is possible). SInce your adapter is in Java itself and is capable of calling web service.. collect or lookup the data whatever you want and validate...
Just a thought..
VJ

Calling Web Service from PLSQL. Does anyone do this regularly?

I grabbed the demo_soap package that is available on both metalink and on the regular oracle site, to try calling a web service from plsql to return the xml. I've had minor success, although I get an ORA600 error , for which I've opened up a TAR. However, the first reply was the I was hitting a bug (db ver. 9206) that had to do with getting 100m in xml in a response. I'm nowhere near that size, and the largest xml response I've been able to generate from the service was 400k (k not m). It doesn't seem that huge. Does anyone work with calling a web service from plsql? Have they had success?
Thanks

Well, you should first test if your webservice is reachable with a simple WS - Client or a Browser - Plugin, then verify the respones of the web service and after that you can take further investigations on your problem domain. The error - message refers to a line in your function, obviously, but I can't see which line and because there is more than one call to sys.utl_dbws I don't see at what point the script fails. NULL - Pointer - Execptions usually indicate that a method was invoked on a variable which should contain an object reference but is NULL.

How do i call web services from SAP ABAP

Hello,
Ian working with .net team. they are using sap .net Connector to connect SAP. But my job is In SAP side when Purchase Requisition is created, I have to call web services from ABAP and i have to pass the Purchase Requisition number to web service(.net Program). Please help me how to call web services from ABAP and how to pass value. Any one help me with example.
Thanks
RaviKumar

Hi Ravi,
If you can call EJB from ABAP and from EJB call Web service which you want to call. I am giving code to write in EJB business method processFunction.
public void processFunction(Function function) {
   IRepository repository;
   repository = new Repository("TestRepository");
   JCO.MetaData fmeta = new JCO.MetaData("ZTEST_EJB");
   fmeta.addInfo("REQUTEXT", JCO.TYPE_CHAR, 255,   0, 0,
   JCO.IMPORT_PARAMETER, null);
   fmeta.addInfo("ECHOTEXT", JCO.TYPE_CHAR, 255,   0, 0,
   JCO.EXPORT_PARAMETER, null);
   fmeta.addInfo("RESPTEXT", JCO.TYPE_CHAR, 255,   0, 0,
   JCO.EXPORT_PARAMETER, null);
   repository.addFunctionInterfaceToCache(fmeta);
   JCO.ParameterList input =
   function.getImportParameterList();
   JCO.ParameterList output =
   function.getExportParameterList();
   JCO.ParameterList tables =
   function.getTableParameterList();
if (function.getName().equals("ZTEST_EJB")) {
                    output.setValue(input.getCharArray("REQUTEXT"),"ECHOTEXT");
output.setValue("This is a response " + table.getString("E_NAME") +" " + output.getName(1), "RESPTEXT");
else if (function.getName().equals("STFC_STRUCTURE")) {
JCO.Structure sin = input.getStructure("IMPORTSTRUCT");
JCO.Structure sout = (JCO.Structure)sin.clone();
try {
      System.out.println(sin);
   catch (Exception ex) {
       System.out.println(ex);
                    output.setValue(sout,"ECHOSTRUCT");
output.setValue("This is a response from Example5.java","RESPTEXT");
}//if
Here REQUTEXT, ECHOTEXT are import parameter and RESPTEXT is the Export parameter of Function module ZTEST_EJB in SAP.
Here from this bisuness method you can call web service which you want and give back the result of webservice to ABAP F.M.
Regards,
Bhavik

Calling web service with utl_dbws and parsing the xml result with Xpath

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