Using a java proxy with XI to execute a Script located in external server

HI
I have recived help from here about this. But i don´t know how to work with java proxy. Is someone there who can help me in it.
Many thanks in advance.
Noelia

Hi Noelia,
You can have 2 types of Java proxies viz. client(putting data into xi pipeline) & server (xi pipeline sends request to these proxies.)
From system point of view, the requirements vary in case of these two. for server proxies you can have a webas java business system and associated technical system in sld.in case of client proxies, refer SAP note #809420.
The basic difference between ABAP proxies and Java proxies is ABAP proxies reside on the perticular application system(CRM or R/3) but java proxies reside on SAP Web AS J2EE stack of your XI server.
Just search SDN pointers on Java proxy developement and you will get good pointers. There is one How-to guide on service marketplace by the name "HowToWorkWithJavaProxies.pdf".
Regarding your dev environment, you can always make use of NWDS, you need to be very much familier with EJB concepts and deployment. Check help.sap.com for more details.
Java Proxies and SAP XI - The Inside Story, Part 1
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/a068cf2f-0401-0010-2aa9-f5ae4b2096f9
Java Proxies and SAP XI - The Inside Story, Part II
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f272165e-0401-0010-b4a1-e7eb8903501d
SAP XI 1.0 Configuring your PC or Laptop as a Java Receiving System
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f5b19b90-0201-0010-9bb0-81c235713d8d
Also go through these links:
/people/prasad.ulagappan2/blog/2005/06/27/asynchronous-inbound-java-proxy
/people/rashmi.ramalingam2/blog/2005/06/25/an-illustration-of-java-server-proxy
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/a068cf2f-0401-0010-2aa9-f5ae4b2096f9
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/f272165e-0401-0010-b4a1-e7eb8903501
http://help.sap.com/saphelp_nw2004s/helpdata/en/97/7d5e3c754e476ee10000000a11405a/frameset.htm
Here you can download code samples for inbound and outbound Java Proxies which you can use together with the Flight Booking Scenario.
http://de.geocities.com/stefan_grube/JavaProxyExample.zip
I hope it helps........
Regards,
Abhy

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at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:12
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at StatelessSessionClient.main(StatelessSessionClient.java:17)
Caused by: java.lang.RuntimeException: java.net.ConnectException: Connection re
used: connect
at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSoc
etFactory.java:390)
at com.sun.corba.ee.impl.legacy.connection.SocketFactoryConnectionImpl.
init>(SocketFactoryConnectionImpl.java:58)
... 10 more
Caused by: java.net.ConnectException: Connection refused: connect
at sun.nio.ch.Net.connect(Native Method)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:457)
at java.nio.channels.SocketChannel.open(SocketChannel.java:146)
at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSoc
etFactory.java:381)
... 11 more
javax.naming.CommunicationException: Can't find SerialContextProvider
at com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.ja
a:66)
at com.sun.enterprise.naming.SerialContext.lookup(SerialContext.java:12
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at StatelessSessionClient.main(StatelessSessionClient.java:17)
Caused by: org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 201 completed
No
at com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(
RBUtilSystemException.java:1739)
at com.sun.corba.ee.impl.logging.ORBUtilSystemException.connectFailure(
RBUtilSystemException.java:1757)
at com.sun.corba.ee.impl.legacy.connection.SocketFactoryConnectionImpl.
init>(SocketFactoryConnectionImpl.java:74)
at com.sun.corba.ee.impl.legacy.connection.SocketFactoryContactInfoImpl
createConnection(SocketFactoryContactInfoImpl.java:88)
at com.sun.corba.ee.impl.protocol.CorbaClientRequestDispatcherImpl.begi
Request(CorbaClientRequestDispatcherImpl.java:146)
at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.request(Corba
lientDelegateImpl.java:121)
at com.sun.corba.ee.impl.protocol.CorbaClientDelegateImpl.is_a(CorbaCli
ntDelegateImpl.java:212)
at org.omg.CORBA.portable.ObjectImpl._is_a(ObjectImpl.java:112)
at org.omg.CosNaming.NamingContextHelper.narrow(NamingContextHelper.jav
:69)
at com.sun.enterprise.naming.SerialContext.getProvider(SerialContext.ja
a:58)
... 3 more
Caused by: java.lang.RuntimeException: java.net.ConnectException: Connection re
used: connect
at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSoc
etFactory.java:390)
at com.sun.corba.ee.impl.legacy.connection.SocketFactoryConnectionImpl.
init>(SocketFactoryConnectionImpl.java:58)
... 10 more
Caused by: java.net.ConnectException: Connection refused: connect
at sun.nio.ch.Net.connect(Native Method)
at sun.nio.ch.SocketChannelImpl.connect(SocketChannelImpl.java:457)
at java.nio.channels.SocketChannel.open(SocketChannel.java:146)
at com.sun.enterprise.iiop.IIOPSSLSocketFactory.createSocket(IIOPSSLSoc
etFactory.java:381)
... 11 more
My java client uses the following code to access the bean:
Hashtable props = new Hashtable();
String URL="iiop://localhost:3700";
props.put("java.naming.factory.initial","com.sun.jndi.cosnaming.CNCtxFactory");
props.put("java.naming.provider.url", URL) ;
InitialContext ctx = new InitialContext();
Object ref = ctx.lookup("ejb/StatelessSessionHome");
StatelessSessionHome home = (StatelessSessionHome)PortableRemoteObject.narrow(ref,StatelessSessionHome.class);
StatelessSessionRemote statelessSession = home.create();
plz help me to locate the error.
Regards,
Mohit

Hi Amol,
thanks for your suggestion.
i have deployed the converter application in J2EE1.4 tutorial in Sun AppServer J2EE1.4. the deployment process works smoothly. but accessing the deployed converter bean using standalone client as given in the tutorial gives the following error.
Caught an unexpected exception!
javax.naming.NoInitialContextException: Need to specify class name in environmen
t or system property, or as an applet parameter, or in an application resource f
ile: java.naming.factory.initial
at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:6
40)
at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:243
at javax.naming.InitialContext.getURLOrDefaultInitCtx(InitialContext.jav
a:280)
at javax.naming.InitialContext.lookup(InitialContext.java:347)
at ConverterClient.main(ConverterClient.java:14)
I have set the InitialHost and InitialPort as suggested by you in the client code. the client gets successfully compiled but gives error when executed.
The client code is:
import javax.naming.Context;
import javax.naming.InitialContext;
import javax.rmi.PortableRemoteObject;
import java.math.BigDecimal;
public class ConverterClient {
public static void main(String[] args) {
System.setProperty("org.omg.CORBA.ORBInitialHost","localhost");
System.setProperty("org.omg.CORBA.ORBInitialPort","3700");
try {
Context initial = new InitialContext();
Object objref = initial.lookup
("java:comp/env/ejb/SimpleConverter");
ConverterHome home =
(ConverterHome)PortableRemoteObject.narrow(objref,
ConverterHome.class);
Converter currencyConverter = home.create();
BigDecimal param = new BigDecimal ("100.00");
BigDecimal amount =
currencyConverter.dollarToYen(param);
System.out.println(amount);
amount = currencyConverter.yenToEuro(param);
System.out.println(amount);
System.exit(0);
} catch (Exception ex) {
System.err.println("Caught an unexpected exception!");
ex.printStackTrace();
Please suggest so that i can run the standalone client successfully.
Regards,
Mohit Kapoor

Use old Java App with WinXP

We have an old app written with Java 1.0.2, designed to run on IE3.0.2.
We have need to use it but all our machines are WinXP Pro, running IE6/SP1. The app will not run on this configuration.
Is there a way we can use them? We are not Java programmers. Is there an app that will allow older stuff to run on newer technology?
Thanks
Paul P

I will bet the IE 3.02 will give you more problems than Java will. Check out Microsoft Developers Network (MSDN) http://www.msdn.microsoft.com/ to see what they have to say about IE.

Using a java proxy with XI to execute a Script located in external server

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