Web Services Vs JMS

Hi All,
I am in the process of benchmarking web services vs JMS.
My scenario is as follows:
I had implemented a delay in both web services as well in JMS. The delay is implemented
using a for loop. I am facing a problem here. Though the Web Services finishes
the for loop in one second. The MDB takes 4 seconds to finish the for loop.
I dont know the reason behind this.
Can anyone throw some light on the same?
Many Thanks in Advance,
C R Baradwaj
[POC.doc]

Hello,
You might want to take a look at the JMS performance guide:
http://dev2dev.bea.com/resourcelibrary/whitepapers/WL_JMS_Perform_GD.jsp
Also, your diagram seems to indicate you are using MQ series, so you
might want to take a look at this whitepaper:
http://dev2dev.bea.com/resourcelibrary/whitepapers/jmsproviders.jsp
Generally speaking, SOAP protocol associated with webservices is more
verbose and will be slower than using JMS as a transport.
Hope this helps,
Bruce
Raghuram Bharadwaj C wrote:
>
Hi All,
I am in the process of benchmarking web services vs JMS.
My scenario is as follows:
I had implemented a delay in both web services as well in JMS. The delay is implemented
using a for loop. I am facing a problem here. Though the Web Services finishes
the for loop in one second. The MDB takes 4 seconds to finish the for loop.
I dont know the reason behind this.
Can anyone throw some light on the same?
Many Thanks in Advance,
C R Baradwaj
Name: POC.doc
POC.doc Type: WINWORD File (application/msword)
Encoding: base64

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"Paul" <[email protected]> wrote:
>
I've taken our wsdl and generated a web service in Workshop 8.1 using
XMLBeans.
This produces a web page that contains a link"Java Proxy" for downloading
generated
client code. I assume this is the same as clientgen. It's interesting
that
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method.
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client seems
to run
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<Sep 29, 2003 7:46:24 AM EDT> <Error> <WLW> <000000> <Failure=com.bea.wlw.runtim
e.core.request.ResponseValidationException: java.lang.RuntimeException:
Protocol
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500 due
t
o SOAP fault occurring on DispFile=pjm.srcm.webservices.face.Receptor>
Frustrating...
Bruce Stephens <[email protected]> wrote:
Hi Paul,
Could you not first use clientgen on the external webservice, then take
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Paul wrote:
Bruce,
Don't think this will work for us. We are receiving data internallythrough
a JMS queue. We need to pull it off the queue (MDB), massage it alittle and
send it to an external web service. The link you sent me was howto implement
a web service with JMS.
I started out by trying to use the Web Service and JMS controls butit doesn't
seem like I can use a JMS control because that requires a conversationID,
which we don't have because nothing is comming in through a web services.
Paul
Bruce Stephens <[email protected]> wrote:
Hi Paul,
There is a chapter in the docs on this. See if this helps,
http://edocs.bea.com/wls/docs81/webserv/jms.html#1067060
Thanks,
Bruce
Paul wrote:
I'm q'ing msgs up and would like to use a message driven bean to
forward
them to
an external web service. Weblogic workshop does not seem to supportweb service
controls in an EJB project. Any suggestions?
Thanks,
Paul

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I have a strange problem with web services created via workshop 8.1beta. If I
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at com.bea.wlw.runtime.core.bean.SyncInput_l1w9sx_EOImpl.invoke(SyncInput_l1w9sx_EOImpl.java:46)
at com.bea.wlw.runtime.core.bean.SyncInput_l1w9sx_EOImpl_WLSkel.invoke(Unknown
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at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:244)
at com.bea.wlw.runtime.core.bean.SyncInput_l1w9sx_EOImpl_WLStub.invoke(Unknown
Source) at com.bea.wlw.runtime.core.dispatcher.Dispatcher.remoteDispatch(Dispatcher.java:143)
at com.bea.wlw.runtime.jws.bean.JMSTransportBean.onMessage(JMSTransportBean.java:113)
at weblogic.ejb20.internal.MDListener.execute(MDListener.java:364) at weblogic.ejb20.internal.MDListener.transactionalOnMessage(MDListener.java:298)
at weblogic.ejb20.internal.MDListener.onMessage(MDListener.java:263) at weblogic.jms.client.JMSSession.onMessage(JMSSession.java:2514)
at weblogic.jms.client.JMSSession.execute(JMSSession.java:2442) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:178)
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at com.bea.wlw.runtime.jws.dispatcher.MimeXmlResponse.writeOutputPart(MimeXmlResponse.java:98)
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.. 18 more
</detail> </error>
The next problem is that if I create a web service with JMS-XML method and test/deploy
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messages there, but no consumer is present.
This is not the last problem I am facing. The next problem is that my weblogic
domain doesn't accept the system property weblogic.webservice.verbose. When I
try to start weblogic, the console says:
<2003.7.14 17:36:32 CEST> <Warning> <Management> <BEA-141087> <Unrecognized property:
webservice.verbose.>
I get the same message for jws.logging and jws.ProductionMode, which were put
there into my start script by configuration wizard. The server runs in development
mode and it is a platform domain server.
Help in advance for all the answers.
Best regards, Srecko Mandelj.

Please post this on the Workshop (WLW) newsgroup.
Regards
Shridhar
"Srecko Mandelj" <[email protected]> wrote:
>
Hello, all.
I have a strange problem with web services created via workshop 8.1beta.
If I
try to use JMS-XML method of invoking web service, the whole process
seems ok.
My code in method of a web service executes without problems, but the
service
response is as follows:
Service Response Submitted at Fri Jul 11 14:20:11 CEST 2003 <error> <faultcode>JWSError</faultcode>
<faultstring>java.lang.NullPointerException</faultstring> <detail> com.bea.wlw.runtime.core.dispatcher.ResponseValidationException:
java.lang.NullPointerException at com.bea.wlw.runtime.jws.dispatcher.MimeXmlResponse.setReturnValue(MimeXmlResponse.java:37)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.runAsInvoke(BaseDispatcherBean.java:185)
at com.bea.wlw.runtime.core.bean.BaseDispatcherBean.invoke(BaseDispatcherBean.java:45)
at com.bea.wlw.runtime.core.bean.SyncDispatcherBean.invoke(SyncDispatcherBean.java:124)
at com.bea.wlw.runtime.core.bean.SyncInput_l1w9sx_EOImpl.invoke(SyncInput_l1w9sx_EOImpl.java:46)
at com.bea.wlw.runtime.core.bean.SyncInput_l1w9sx_EOImpl_WLSkel.invoke(Unknown
Source) at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:166)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:291)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:244)
at com.bea.wlw.runtime.core.bean.SyncInput_l1w9sx_EOImpl_WLStub.invoke(Unknown
Source) at com.bea.wlw.runtime.core.dispatcher.Dispatcher.remoteDispatch(Dispatcher.java:143)
at com.bea.wlw.runtime.jws.bean.JMSTransportBean.onMessage(JMSTransportBean.java:113)
at weblogic.ejb20.internal.MDListener.execute(MDListener.java:364) at
weblogic.ejb20.internal.MDListener.transactionalOnMessage(MDListener.java:298)
at weblogic.ejb20.internal.MDListener.onMessage(MDListener.java:263)
at weblogic.jms.client.JMSSession.onMessage(JMSSession.java:2514)
at weblogic.jms.client.JMSSession.execute(JMSSession.java:2442) at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:178)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:151) Caused by:
java.lang.NullPointerException
at com.bea.xml.marshal.MarshalContext.init(MarshalContext.java:38) at
com.bea.wlw.runtime.core.dispatcher.DispMessage.marshalXml(DispMessage.java:408)
at com.bea.wlw.runtime.jws.dispatcher.MimeXmlResponse.writePart(MimeXmlResponse.java:108)
at com.bea.wlw.runtime.jws.dispatcher.MimeXmlResponse.writeOutputPart(MimeXmlResponse.java:98)
at com.bea.wlw.runtime.jws.dispatcher.MimeXmlResponse.setReturnValue(MimeXmlResponse.java:33)
... 18 more
</detail> </error>
The next problem is that if I create a web service with JMS-XML method
and test/deploy
it on platform domain of weblogic 8.1 beta, it invokes normaly (and it
ends with
the response given above), but if I use a workshop platform, web service
never
starts. If I look at the jws.queue monitoring on weblogic console, I
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messages there, but no consumer is present.
This is not the last problem I am facing. The next problem is that my
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If I set up an asynchronous web service using JMS transport, would I be able to receive the callbacks in the business service that invokes the ws?
Is this the only approach to callbacks that I can use?

If I set up an asynchronous web service using JMS transport, would I be able to receive the callbacks in the business service that invokes the ws?
Is this the only approach to callbacks that I can use?

JMS Proxy to Web Service Problem

Hi All,
I have a JMS proxy that routes messages to a web service. I have set the delivery failure parameters on the JMS queue. When a message is put onto the queue and there is a problem within the message flow proper, the message is retried the appropriate number of times and put onto the Error Destination queue as necessary. However, if there is a problem calling the web service, message delivery is NOT retried, the message is NOT put onto the Error Destination queue, and the message is lost. The web service itself isn't throwing a SOAP Fault, but the business service can't reach the web service (firewall issue). My Route Error Handler in the message flow is hit and it performs a Reply With Failure.
Can anyone please explain to me if this is by design and, if so, why? Also, how does a person work around this? I need the message to be retried. I understand that a web service cannot participate in an XA transaction, but it seems to me any failure within the message flow should cause a retry on the JMS queue.
Thanks.
Edited by mvcg at 06/11/2008 1:57 PM

You should remove the Route Node since it should only be used in HttpProxy.
Instead use just the request pipeline for your routing.
if (condition1)
Service Callout (or publish) to Service1
else if (condition2)
Service Callout (or publish) to Service2
else
Rasie error?
You shouldn't need to reply with failure. Any errors in the service callout or publish should go to exception handling if you use QoS exactly-once.

Web Service Client - SOAP/jms: Specific response queue (not default queue)?

Hi @ll
I try to define a specific jms response queue for a web service client that communicates SOAP/jms, running on a WLS 9.2. The web service itself runs also on a WLS 9.2 where also the request and response queues are located. By default the client receives the responses from a temporary response queue. Is there a way to define a specific response queue e.g. setting the JMSReplyTo property in the request on the client side?
/cheers&greetz
Dani

WLS do not have a light SOAP client with callbacks yet. It is
not a planed feature for 7.0, but we will considering this for
post 7.0.
regards,
-manoj
"markhu" <[email protected]> wrote in message
news:[email protected]..
Hi, guys:
I have a system : client written in Java/Swing, HTTPS authentication,
and then subscribes to a WLS 61. SP2 based JMS Topic and also has the
ability to send message to a Queue, since I can not bring down the size of
the client side WLS JMS dependency lib, I am thinking about using SOAP /
web service as the communication tier between my client and server, so the
question is: since the client need get the price updates in a real time
mode, I need build a server side based PUSH for all the new price updates
which come into the JMS Topic, and broadcast as SOAP messages to client,is
this mean that I have to build the Call - Back for the Java Swing Client,so
it can automatically get the new price updates as it's getting from JMS
Topic now ? Any Idea on how to build server side PUSH based SOAP message
center as web service ?? Thanks a lot.
regards,
mark
FYI:
I need the same PUSH service for my .NET based client as well.

JMS Web Services in latest OC4J 9.0.3

Just trying out the JMS Web services in OC4J 9.0.3 just released today. Using Ant 1.5 and updated the build.xml file as directed. Using JDK 1.3.02.
Trying the JMS Web Service demo #2 based on JMS on top of Oracle AQ. Everything works fine - queues set up fine, OC4J configured nicely, and the following steps of the build work fine: clean, setup, compile, mdbjar ...
But when I get to the assemble step it crashes with the following error:
assemble:
[echo] assembling Web Services EAR. ..
[java] Please wait ...
[java] java.io.IOException: CreateProcess: javac proxy\JmsDemo2Proxy.java error=2
[java] at java.lang.Win32Process.create(Native Method)
[java] at java.lang.Win32Process.<init>(Win32Process.java:66)
[java] at java.lang.Runtime.execInternal(Native Method)
[java] at java.lang.Runtime.exec(Runtime.java:551)
[java] at java.lang.Runtime.exec(Runtime.java:418)
[java] at java.lang.Runtime.exec(Runtime.java:361)
[java] at java.lang.Runtime.exec(Runtime.java:325)
[java] at oracle.j2ee.ws.tools.WsAssmProxyGenerator.doCompile(WsAssmProxyGenerator.java:284)
[java] at oracle.j2ee.ws.tools.WsAssmProxyGenerator.processProxy(WsAssmProxyGenerator.java:131)
[java] at oracle.j2ee.ws.tools.WsAssmProxyGenerator.clientGenerate(WsAssmProxyGenerator.java:120)
[java] at oracle.j2ee.ws.tools.WsAssembler.assemble(WsAssembler.java:92)
[java] at oracle.j2ee.ws.tools.WsAssembler.main(WsAssembler.java:64)
[java] Exception in thread "main"
BUILD FAILED
file:D:/oc4j903/webservices/demo/basic/jms_service/demo2/build.xml:63: Java returned: 1
What is interesting is the WSDL and proxy appear to have been generated successfully. Even the jmsws2.ear and mdb_service2.jar files appear generated ok. But the web.xml is missing so perhaps this is where it died. Any clues as to what might be wrong ... are changes required in the config.xml file driving the WebServicesAssembly tool?
Thanks for any help.

Went a little further ... given the assembly error seemed to occur on the last step creating the proxy.jar file, I simply skipped over it and did the deployment (changed the build.xml to continue assembly upon failure). This seemed reasonable as all the ear and war files where there; the only missing piece appeared to be the proxy.jar.
The deployment of the service was successful and I downloaded the proxy.jar file from the OC4J instance which in turn allowed me to compile the Web service client. Things were looking up here.
However, when I ran the service I got an error indicating the wrong number of arguments to the underlying queues. Given it got through to the database, I assume my configuration is set up correctly but it is a little hard to debug from here. Here is the error I got (note tried on 9.0.1 and 9.0.2 database):
D:\oc4j903\webservices\demo\basic\jms_service\demo2>java -classpath client;proxy/JmsDemo2_proxy.jar;%CLASSPATH% JmsDemo2
Client
Doing the Send Operation ..on Element
<employee>
<name>Bob</name>
<emp_id>1234</emp_id>
<position>assistant manager</position>
</employee>
[SOAPException: faultCode=SOAP-ENV:Server; msg=oracle.jms.AQjmsException: ORA-06550: line 1, column 7:
PLS-00306: wrong number or types of arguments in call to 'AQ$_JMS_ENQUEUE_OBJECT_MESSAGE'
ORA-06550: line 1, column 7:
PL/SQL: Statement ignored
at JmsDemo2Proxy.makeSOAPCallDocument(JmsDemo2Proxy.java:73)
at JmsDemo2Proxy.send(JmsDemo2Proxy.java:47)
at JmsDemo2Client.main(client/JmsDemo2Client.java:19)
The two oc4j configuration files requiring editing datasources.xml and application.xml are included below. Datasources was straightforward; I wasn't quite clear about the <resource-provider> entry in application.xml as it wasn't clear if this is a top level element or what. See the very end of this post to see where I put it.
Datasources.xml
<?xml version="1.0" standalone='yes'?>
<!DOCTYPE data-sources PUBLIC "Orion data-sources" "http://xmlns.oracle.com/ias/dtds/data-sources.dtd">
<data-sources>
     <data-source
          class="com.evermind.sql.DriverManagerDataSource"
          name="OracleDS"
          location="jdbc/OracleCoreDS"
          xa-location="jdbc/xa/OracleXADS"
          ejb-location="jdbc/OracleDS"
          connection-driver="oracle.jdbc.driver.OracleDriver"
          username="scott"
          password="tiger"
          url="jdbc:oracle:thin:@localhost:5521:oracle"
          inactivity-timeout="30"
     />
     <data-source
class="com.evermind.sql.DriverManagerDataSource"
name="OracleDS"
location="jdbc/wsDemoEmulatedOracleCoreDS"
xa-location="jdbc/xa/wsDemoEmulatedOracleXADS"
ejb-location="jdbc/wsDemoEmulatedDS"
connection-driver="oracle.jdbc.driver.OracleDriver"
username="jemuser"
password="jempasswd"
url="jdbc:oracle:thin:@127.0.0.1:1521:O901"
inactivity-timeout="30"
/>
</data-sources>
application.xml
<?xml version="1.0" standalone='yes'?>
<!DOCTYPE orion-application PUBLIC "-//Evermind//DTD J2EE Application runtime 1.2//EN" "http://xmlns.oracle.com/ias/dtds/orion-application.dtd">

<orion-application autocreate-tables="true"
     default-data-source="jdbc/OracleDS">
     <web-module id="defaultWebApp" path="../../home/default-web-app" />
     <web-module id="dms0" path="../../home/applications/dms0.war" />
     <web-module id="dms" path="../../home/applications/dms.war" />
<connectors path="./oc4j-connectors.xml"/>
     <persistence path="../persistence" />

     <library path="../../home/lib" />
     <library path="../../../sqlj/lib" />
     <library path="../../../rdbms/jlib/xsu12.jar" />
     
<library path="../../home/jsp/lib/taglib" />

     <principals path="./principals.xml" />
     <log>
          <file path="../log/global-application.log" />
     </log>
<commit-coordinator>
<commit-class
class="com.evermind.server.OracleTwoPhaseCommitDriver" />
<property name="datasource"
value="jdbc/OracleDS"/>

</commit-coordinator>
     <data-sources path="data-sources.xml" />
     <namespace-access>
          <read-access>
               <namespace-resource root="">
                    <security-role-mapping>
                         <group name="administrators" />
                    </security-role-mapping>
               </namespace-resource>
          </read-access>
          <write-access>
               <namespace-resource root="">
                    <security-role-mapping>
                         <group name="administrators" />
                    </security-role-mapping>
               </namespace-resource>
          </write-access>
     </namespace-access>
     <resource-provider class="oracle.jms.OjmsContext" name="wsdemo">
<description> OJMS/AQ </description>
<property name="datasource" value="jdbc/wsDemoEmulatedDS">
</property>
</resource-provider>
</orion-application>
Any suggestions? Wait for production?
Mike.

JMS Web Service Configuration

Hi folks,
I'm trying to set up a JMS web service on a WebLogic 7.0 server.
I want this web service to listen for messages on a queue on
another server running WebLogic 6.1 sp2. Here's what I've done:
Created web service using WebLogic Workshop modeled after the
workshop sample SimpleJMS.jws. A file Email.jws contains the
following code snippet:
package datatel.jms.email;
import weblogic.jws.control.JwsContext;
import EmailControl;
import javax.jms.Message;
public class Email
// Public variables...
public String m_Message = "default email response";
public EmailJMS emailJMS = null;
// Protected variables...
protected String jmsURL = "http://predict.datatel-info.com:7250";
// Private variables...
private String name;
* @jws:control
private EmailControl Email_Ctrl;
/** @jws:context */
JwsContext context;
* Initialize the JMS connection to the predict server...
public Email()
System.out.println("\nEntering Email.jws constructor...");
// Initialize JMS on the Predict server...
emailJMS = new EmailJMS(jmsURL);
System.out.println("Exiting Email.jws constructor...");
Notice that the Email() constructor code above references my object EmailJMS(jmsURL).
This object intializes the JMS connection to the other WebLogic 6.1 server. Here's
the JMS initialization code in my web service:
public EmailJMS(String jmsURL) {
System.out.println("\nEntering EmailJMS constructor with URL..."
+ jmsURL);
Environment environ = new Environment();
environ.setProviderUrl(jmsURL);
try {
ctx = environ.getInitialContext();
System.out.println("Got new InitialContext..." + ctx.PROVIDER_URL
+ "\nTime is: " + new Date().toString());
qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
qcon = qconFactory.createQueueConnection();
qsession = (WLQueueSession) qcon.createQueueSession(false, Session.AUTO_ACKNOWLEDGE);
/** USER receive queue and listener
queue = (Queue) ctx.lookup("USER_TX_Q");
user_recvr = qsession.createReceiver(queue);
user_recvr.setMessageListener(this);
textMsg = qsession.createTextMessage();
objMsg = qsession.createObjectMessage();
isConnected = true;
qcon.start();
// --- more code follows ...
The JMS connection is successfully made. When another JMS program sends a message
to the USER_TX_Q, the web service receives the message via the onMessage handler
in the EmailJMS class.
The problem arises when I try to invoke my web service from the WebLogic Workshop
browser Test Form. On invocation on my web service, the following exception occurs:
start
= 0.45-->
name = Harmon .CONVPHASE = .START .CONVERSATIONID = 1023816206621
Exception
Submitted at Tue Jun 11 10:23:28 MST 2002
start
= 0.45-->
javax.ejb.CreateException: Exception on Create: java.io.NotSerializableException:
weblogic.jndi.internal.ServerNamingNode_WLStub at weblogic.knex.bean.WebProcessBean.ejbCreate(WebProcessBean.java:876)
at weblogic.knex.bean.WebProcessBean_dp0iqg_Impl.ejbCreate(WebProcessBean_dp0iqg_Impl.java:172)
at java.lang.reflect.Method.invoke(Native Method) at weblogic.ejb20.manager.ExclusiveEntityManager.create(ExclusiveEntityManager.java:731)
at weblogic.ejb20.manager.ExclusiveEntityManager.remoteCreate(ExclusiveEntityManager.java:702)
at weblogic.ejb20.internal.EntityEJBHome.create(EntityEJBHome.java:250) at
weblogic.knex.bean.WebProcessBean_dp0iqg_HomeImpl.create(WebProcessBean_dp0iqg_HomeImpl.java:74)
at weblogic.knex.bean.WebDispatcherBean.invoke(WebDispatcherBean.java:61)
at weblogic.knex.bean.RemoteDispatcherBean.invoke(RemoteDispatcherBean.java:105)
at weblogic.knex.bean.RemoteDispatcherBean_1a3xc3_EOImpl.invoke(RemoteDispatcherBean_1a3xc3_EOImpl.java:46)
at weblogic.knex.bean.RemoteDispatcherBean_1a3xc3_EOImpl_WLSkel.invoke(Unknown
Source) at weblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:159)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:262)
at weblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java:229)
at weblogic.knex.bean.RemoteDispatcherBean_1a3xc3_EOImpl_WLStub.invoke(Unknown
Source) at weblogic.knex.dispatcher.Dispatcher.remoteDispatch(Dispatcher.java:96)
at weblogic.knex.dispatcher.Dispatcher.dispatch(Dispatcher.java:73) at weblogic.knex.dispatcher.HttpServer.exploreExec(HttpServer.java:464)
at weblogic.knex.dispatcher.HttpServer.doGet(HttpServer.java:370) at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) at weblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(ServletStubImpl.java:945)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:332)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:242)
at weblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(WebAppServletContext.java:5352)
at weblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManager.java:718)
at weblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletContext.java:3032)
at weblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java:2466)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:152) at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:133)
Service Response
When I comment out the instantiation of my EmailJMS(jmsURL) object, the web service
initializes just fine. However, I don't have the JMS connection to my other server.
What is this stack trace telling me? How do I receive unsolicited JMS messages in
a web service?
Thanks,
Bob Gontarz

Hi Bob,
I have tested the same functionality as mentioned by you, and could not see
any errors, while testing using the Test Form. The JMS queue where I was
sending messages is on a 6.1 sp2 server.
Please find attached the two JWS files, which I used to simulate the
condition, one used for dispatching the messages and the other for receiving
the messages.
Please do let me know if your case is any different from the one I have
tested.
I look forward to your response.
Regards,
Anurag
Workshop Support
"Bob Gontarz" <[email protected]> wrote in message
news:[email protected]...
>
Hi folks,
I'm trying to set up a JMS web service on a WebLogic 7.0 server.
I want this web service to listen for messages on a queue on
another server running WebLogic 6.1 sp2. Here's what I've done:
Created web service using WebLogic Workshop modeled after the
workshop sample SimpleJMS.jws. A file Email.jws contains the
following code snippet:
package datatel.jms.email;
import weblogic.jws.control.JwsContext;
import EmailControl;
import javax.jms.Message;
public class Email
// Public variables...
public String m_Message = "default email response";
public EmailJMS emailJMS = null;
// Protected variables...
protected String jmsURL = "http://predict.datatel-info.com:7250";
// Private variables...
private String name;
* @jws:control
private EmailControl Email_Ctrl;
/** @jws:context */
JwsContext context;
* Initialize the JMS connection to the predict server...
public Email()
System.out.println("\nEntering Email.jws constructor...");
// Initialize JMS on the Predict server...
emailJMS = new EmailJMS(jmsURL);
System.out.println("Exiting Email.jws constructor...");
Notice that the Email() constructor code above references my objectEmailJMS(jmsURL).
This object intializes the JMS connection to the other WebLogic 6.1server. Here's
the JMS initialization code in my web service:
public EmailJMS(String jmsURL) {
System.out.println("\nEntering EmailJMS constructor with URL..."
+ jmsURL);
Environment environ = new Environment();
environ.setProviderUrl(jmsURL);
try {
ctx = environ.getInitialContext();
System.out.println("Got new InitialContext..." + ctx.PROVIDER_URL
+ "\nTime is: " + new Date().toString());
qconFactory = (QueueConnectionFactory) ctx.lookup(JMS_FACTORY);
qcon = qconFactory.createQueueConnection();
qsession = (WLQueueSession) qcon.createQueueSession(false,Session.AUTO_ACKNOWLEDGE);
>
/** USER receive queue and listener
queue = (Queue) ctx.lookup("USER_TX_Q");
user_recvr = qsession.createReceiver(queue);
user_recvr.setMessageListener(this);
textMsg = qsession.createTextMessage();
objMsg = qsession.createObjectMessage();
isConnected = true;
qcon.start();
// --- more code follows ...
The JMS connection is successfully made. When another JMS program sends amessage
to the USER_TX_Q, the web service receives the message via the onMessagehandler
in the EmailJMS class.
The problem arises when I try to invoke my web service from the WebLogicWorkshop
browser Test Form. On invocation on my web service, the followingexception occurs:
>
start
= 0.45-->
name = Harmon .CONVPHASE = .START .CONVERSATIONID = 1023816206621
Exception
Submitted at Tue Jun 11 10:23:28 MST 2002
start
= 0.45-->
javax.ejb.CreateException: Exception on Create:java.io.NotSerializableException:
weblogic.jndi.internal.ServerNamingNode_WLStub atweblogic.knex.bean.WebProcessBean.ejbCreate(WebProcessBean.java:876)
atweblogic.knex.bean.WebProcessBean_dp0iqg_Impl.ejbCreate(WebProcessBean_dp0iq
g_Impl.java:172)
at java.lang.reflect.Method.invoke(Native Method) atweblogic.ejb20.manager.ExclusiveEntityManager.create(ExclusiveEntityManager.
java:731)
atweblogic.ejb20.manager.ExclusiveEntityManager.remoteCreate(ExclusiveEntityMa
nager.java:702)
atweblogic.ejb20.internal.EntityEJBHome.create(EntityEJBHome.java:250) at
>
weblogic.knex.bean.WebProcessBean_dp0iqg_HomeImpl.create(WebProcessBean_dp0i
qg_HomeImpl.java:74)
atweblogic.knex.bean.WebDispatcherBean.invoke(WebDispatcherBean.java:61)
atweblogic.knex.bean.RemoteDispatcherBean.invoke(RemoteDispatcherBean.java:105
atweblogic.knex.bean.RemoteDispatcherBean_1a3xc3_EOImpl.invoke(RemoteDispatche
rBean_1a3xc3_EOImpl.java:46)
atweblogic.knex.bean.RemoteDispatcherBean_1a3xc3_EOImpl_WLSkel.invoke(Unknown
Source) atweblogic.rmi.internal.ServerRequest.sendReceive(ServerRequest.java:159)
atweblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java
:262)
atweblogic.rmi.cluster.ReplicaAwareRemoteRef.invoke(ReplicaAwareRemoteRef.java
:229)
atweblogic.knex.bean.RemoteDispatcherBean_1a3xc3_EOImpl_WLStub.invoke(Unknown
Source) atweblogic.knex.dispatcher.Dispatcher.remoteDispatch(Dispatcher.java:96)
at weblogic.knex.dispatcher.Dispatcher.dispatch(Dispatcher.java:73)at weblogic.knex.dispatcher.HttpServer.exploreExec(HttpServer.java:464)
at weblogic.knex.dispatcher.HttpServer.doGet(HttpServer.java:370)at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853) atweblogic.servlet.internal.ServletStubImpl$ServletInvocationAction.run(Servle
tStubImpl.java:945)
atweblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:332)
atweblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java
:242)
atweblogic.servlet.internal.WebAppServletContext$ServletInvocationAction.run(W
ebAppServletContext.java:5352)
atweblogic.security.service.SecurityServiceManager.runAs(SecurityServiceManage
r.java:718)
atweblogic.servlet.internal.WebAppServletContext.invokeServlet(WebAppServletCo
ntext.java:3032)
atweblogic.servlet.internal.ServletRequestImpl.execute(ServletRequestImpl.java
:2466)
at weblogic.kernel.ExecuteThread.execute(ExecuteThread.java:152)at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:133)
Service Response
When I comment out the instantiation of my EmailJMS(jmsURL) object, theweb service
initializes just fine. However, I don't have the JMS connection to myother server.
What is this stack trace telling me? How do I receive unsolicited JMSmessages in
a web service?
Thanks,
Bob Gontarz
[SendMessages.jws]
[HelloWorld.jws]

Receive asynchronous message from JMS topic over web service

Hi,
I have a JMS topic and I want to expose it as a web service so that clients can
make durable subcription to the topic and receive messages asynchronously. What
is the best way of doing this ? Is there a portable (to other containers) way
of do this ? If not, is there a web logic specific way of doing this ?
Thanks,
Siva

So you expect clients to be receiving SOAP messages over HTTP? In this
case, the clients are really servers that are capable of servicing SOAP
requests, correct? And how about the senders: are they also using
SOAP/HTTP to send messages that are delivered to the receivers?
It should be possible to write this yourself using JMS not as the
transport, but as a mechanism for distributing the message to a set of
clients. You'll need to implement a Web Service for publishing to a
topic, an operation for registering an end point to recieve messages,
and an MDB (or other form of JMS subscriber) executing on the server to
relay the message to the end point.
Siva wrote:
Hi,
I have a JMS topic and I want to expose it as a web service so that clients can
make durable subcription to the topic and receive messages asynchronously. What
is the best way of doing this ? Is there a portable (to other containers) way
of do this ? If not, is there a web logic specific way of doing this ?
Thanks,
Siva

Sending JMS messages as web services

I am trying to read a JMS topic, retrieve an XMLBean from the queue, and send it
via web services developed in Workshop. Everything seems to deploy fine, but
when I post a message to the topic, it just disapears. No logging, no movement
to the specified error queue, and println doesn't print. How do I do this?

Hi Neil,
Have you gone through the tutorial "how to" [1] on this subject? There
is a basic JMS/webservice example [2], outside of WLW, that may be
useful in validating your JMS/server configuration. Also, be sure to
check the server log file for warning/error messages.
Hope this is of some value,
Bruce
[1]
http://edocs.bea.com/workshop/docs81/doc/en/workshop/guide/howdoi/howExchangeMessageswithaJMSQueueorTopicfromaWebService.html
[2]
http://webservice.bea.com/message.zip
Neil Hornbeck wrote:
>
I am trying to read a JMS topic, retrieve an XMLBean from the queue, and send it
via web services developed in Workshop. Everything seems to deploy fine, but
when I post a message to the topic, it just disapears. No logging, no movement
to the specified error queue, and println doesn't print. How do I do this?

Web Services Vs JMS

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