Is it possible to know which soa server is processing the Instance

Hi there Ramesh_A,

here are my two cents on the topic:

1) you could use ora:getProcessURL() built-in function to get the URL of WebService SOAP endpoint URL of the composite application. As you are in a clustered environment it might turn that the function returns the same result on all servers (depending on your setup). But the cost of PoC is minimal.

2) you could create a custom XPath function that uses Java to determine the hostname of the server that currently processes your instance. You could use Java activity with this code - Getting the computer name in Java - Stack Overflow, but I prefer using XPath functions instead of Java embedding in BPEL.

HTH,

A.

Nice! I looked into the suggestion of Anatoli and couldn't help trying it. Based on the suggestion I created the following bean:

package nl.darwinit.soasuite; import java.net.InetAddress; import java.net.UnknownHostException;   public class ServerHostBeanImpl implements IServerHostBean {     public ServerHostBeanImpl() {         super();     }          public  String getHostName(String hostNameDefault){         String hostName;         try         {             InetAddress addr;             addr = InetAddress.getLocalHost();             hostName = addr.getHostName();         }         catch (UnknownHostException ex)         {             System.out.println("Hostname can not be resolved");             hostName = hostNameDefault;         }         return hostName;     }      }

Then I created the following interface:

package nl.darwinit.soasuite;  public interface IServerHostBean {     String getHostName(String hostNameDefault); }

Then in a project I am working on, I added a spring context (see also my article Darwin-IT: Forget about WSIF: welcome Spring . By the way, in contrast to my suggestions in the article, you don't have to create a springcontext for every bean.)

The spring context, getHostNameContext, has the following content:

<?xml version="1.0" encoding="UTF-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:util="http://www.springframework.org/schema/util"        xmlns:jee="http://www.springframework.org/schema/jee" xmlns:lang="http://www.springframework.org/schema/lang"        xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"        xmlns:sca="http://xmlns.oracle.com/weblogic/weblogic-sca" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/tool http://www.springframework.org/schema/tool/spring-tool.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc.xsd http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms.xsd http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd http://xmlns.oracle.com/weblogic/weblogic-sca META-INF/weblogic-sca.xsd">     <!--Spring Bean definitions go here-->     <sca:service name="GetHostService" target="ServerHostBeanImpl" type="nl.darwinit.soasuite.IServerHostBean"/>     <bean id="ServerHostBeanImpl" class="nl.darwinit.soasuite.ServerHostBeanImpl"/> </beans>

So my composite looks like:

The Spring Context can be wired to the bpel, and in the BPEL process I added a scope with an invoke to the generated partnerlink.

Running it results in:

The scope can be converted to an (inline or reusable) subprocess, so that you can reuse it.

Of course you can add the java code in an embedded java-activity. But this makes it a little more pluggable.

Regards,
Martien

Yeah, but that's only after a dehydration. Not when it's currently running.

Regards,
Martien

Hi there Martien,

I also kind of hate the Java activity as it brings issues when you build/package with Maven. For this kind of low level operations I prefer to create custom XPath functions and use them in assign, XSL transformations etc. and I also believe that it is by faster as the "messages" does not go through the fabric.

Cheers,

A.