Accessing web service in run-time

Hello,
In the project I am currently working we have a component (Device Monitor) that needs to access other web services which contain the same interface (MonitorRemote). The webservices wit the MonitorRemote interface register in run-time giving their end-point, wsdl url and any other information that we may need.
My problem is to access these webservices in run-time. I have tried many approaches and nothing seems to work.
Currently I am creating 2 webservices with the same MonitorRemote remote interface but different name, service name and portName.
I try to execute the following:
1)String serviceName = method.getMethodName();
2)String portName= method.getPortName();
3)URL wsdlURL = new URL(method.getURL());
4)String namespaceURI = method.getNamespaceURI();
5)QName serviceQName = new QName(namespaceURI, serviceName);
6)QName portQName = new QName(namespaceURI, portName);
7)TimeoutMonitorService mtService = new TimeoutMonitorService(wsdlURL, serviceQName);
8)MonitorRemote monitoringRemote = mtService.getPort(portQName, MonitorRemote.class);
9)monitoringRemote.stopMonitoringFeature(0, 0);
Before the execution I test my TimeoutMonitorService with the webservice navigator and it works fine. After I execute line 9) the TimeoutMonitorService crashes giving the following message:
System exception
[EXCEPTION]
javax.ejb.EJBException: Exception raised from invocation of public void com.sap.sii.devicemonitor.DeviceMonitorBean.stopMonitoringFeature(com.sap.sii.devicemonitor.entities.ResourceMonitoringSettings) throws com.sap.sii.dataStructures.exceptions.IncorrectParameterException method on bean instance com.sap.sii.devicemonitor.DeviceMonitorBean@92f4d2 for bean sap.com/SII_device_monitor_EARannotation|SII_device_monitor_ejb.jarannotation|DeviceMonitorBean; nested exception is: javax.xml.ws.soap.SOAPFaultException: com.sap.engine.services.webservices.espbase.server.additions.exceptions.ProcessException
javax.xml.ws.soap.SOAPFaultException: com.sap.engine.services.webservices.espbase.server.additions.exceptions.ProcessException
at com.sap.engine.services.webservices.espbase.client.bindings.impl.JAXWSUtil.processFault(JAXWSUtil.java:341)
at com.sap.engine.services.webservices.espbase.client.bindings.impl.SOAPTransportBinding.call_SOAP(SOAPTransportBinding.java:984)
at com.sap.engine.services.webservices.espbase.client.bindings.impl.SOAPTransportBinding.callWOLogging(SOAPTransportBinding.java:700)
Afer the first time I receive this error I start getting many warining messages in the log files with the following message:
Exception occurred during open of configuration [apps/sap.com/SII_device_monitor_EAR/TimeoutMonitoringTaskService].
[EXCEPTION]
com.sap.engine.frame.core.configuration.ConfigurationLockedException: Can not lock Configuration "apps/sap.com/SII_device_monitor_EAR/TimeoutMonitoringTaskService" because it is already locked.
at com.sap.engine.core.configuration.impl.ServerEnvironment.lockConfiguration(ServerEnvironment.java:664)
at com.sap.engine.core.configuration.impl.cache.ConfigurationCache.openConfiguration(ConfigurationCache.java:879)
I tried to remove and re-deploy but the webservice only returns this error message once I execute my code. The only work around is to create a new project with different interface names.
I am using:
SAP NetWeaver Developer Studio
SAP NetWeaver 7.1 SP05 PAT0000
Build id: 200802021401
Any help would be really appreciated.

need bit more info. from where you are trying to access this webservice? what is the wsdl you are using

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-------------How do I give Kudos? | How do I mark a post as Solved? --------------------------------------------------------
This question was solved.
View Solution.

The reason we recommend using 8.8.8.8 and 8.8.4.4 for the DNS server is because they work when ISP assigned DNS servers do not. The DNS server assigned to you by your ISP is not able to resolve the domain for web services, therefore not allowing the printer to connect.
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-------------How do I give Kudos? | How do I mark a post as Solved? --------------------------------------------------------

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I've 9.2.01 RDBMS, JPub 9.2.0.1.0 Production and OC4J Release 10.1.2 (standalone) environment and a local webservice.
While issuing jpub, I get the following response:
jpub -user=scott/tiger@ORACLE -sysuser sys/tiger -proxywsdl="e:\IMyFloatWebService.wsdl" -endpoint="http://10.177.238.71:8988/WS_Appln-WSFloat_prj-context-root/MyFloatWebService" -proxyopts=soap,tabfun -dir=FloatValue -plsqlpackage=soap_callout_wrap_eg -proxyopts=noload
Note: FloatValue\MyFloatWebServiceProxy.java uses unchecked or unsafe operations
Note: Recompile with -Xlint:unchecked for details.
FloatValue\MyFloatWebServiceProxyJPub.java
FloatValue\plsql_wrapper.sql
FloatValue\plsql_dropper.sql
FloatValue\plsql_grant.sql
FloatValue\plsql_revoke.sql
FloatValue\plsql_proxy.jar
Please run FloatValue\plsql_wrapper.sql in the user schema, load the generated j
ar file and run FloatValue\plsql_grant.sql in the SYS schema.
i. e - I get message as seen above:
"Please run FloatValue\plsql_wrapper.sql in the user schema, load the generated j
ar file and run FloatValue\plsql_grant.sql in the SYS schema."
And in sqlplus, while I try to access the web service, I get this error:
"SQL> sho user;
USER is "SCOTT"
SQL> SELECT soap_callout_wrap_eg.getCircumference(20)
2 FROM dual;
FROM dual
ERROR at line 2:
ORA-29541: class SCOTT.MyWebServiceFloatRTEProxyJPub could not be resolved"
Could somebody please advise me where I might be going wrong? Any help in this regards will be highly appreciated.
Regards,
Leslie

Hi,
I presume your Web Service needs HTTP (BASIC?) Authentication.
All this needs is setting the following 2 properties, which as can be seen, you are setting....
UTL_DBWS.set_property(l_call, 'USERNAME', '<username>');
UTL_DBWS.set_property(l_call, 'PASSWORD', '<pwd>');
This should work as long as your DBWS Callout Utility was downloaded from OTN after June 2008, and it's version is atleast 10.1.3.1.
Following is a sample code snippet that was tested successfully for this :
Declare
l_service UTL_DBWS.service;
l_call UTL_DBWS.call;
l_result sys.XMLTYPE;
l_request sys.XMLTYPE;
BEGIN
l_service := UTL_DBWS.create_service(null);
l_call := UTL_DBWS.create_call(l_service);
UTL_DBWS.set_target_endpoint_address(l_call, 'http://xxx.oracle.com:8888/basic/MyWebService1SoapHttpPort');
UTL_DBWS.set_property(l_call, 'USERNAME', 'username');
UTL_DBWS.set_property(l_call, 'PASSWORD', 'pwd');
UTL_DBWS.set_property(l_call, 'OPERATION_STYLE', 'document');
UTL_DBWS.set_property(l_call, 'SOAPACTION_USE', 'true');
UTL_DBWS.set_property(l_call, 'SOAPACTION_URI', 'http://xxx.oracle.com:8888/basic/MyWebService1SoapHttpPort');
l_request := XMLTYPE('<Z_CENTRICITY_GET_DOCLIST
xmlns:urn="urn:sap-com:document:sap:rfc:functions">' ||
'<I_INCLUDE_OLD_VERSIONS></I_INCLUDE_OLD_VERSIONS>' ||
'<I_INSTITUTION>0001</I_INSTITUTION>' ||
'<I_PATIENT_NR>0000000181</I_PATIENT_NR>' ||
'</Z_CENTRICITY_GET_DOCLIST>');
l_result := UTL_DBWS.invoke(l_call, l_request);
UTL_DBWS.release_call (call_handle => l_call);
UTL_DBWS.release_service (service_handle => l_service);
EXCEPTION
WHEN OTHERS THEN
dbms_output.put_line(sqlcode || ' ' || sqlerrm);
END;
Hope this helps,
Yogesh

Accessing web service in run-time

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