How to Connect to the Visibroker Naming Service using the Servlet
Hi
I am facing Problem in finding the Initial JNDI Context.
It is giving me ClassCastException.
In our Application the Tomcat is Integrated with One of the Partitions. And the EJB' are registered on Visibroker Naming Service (on the same machine).
I want to Access one of the EJB's.
Following is my Client Code in the Servlet.
==============================================================================
public void doPost(HttpServletRequest request, HttpServletResponse res)
throws IOException, ServletException
res.setContentType("text/html");
PrintWriter pw = res.getWriter();
pw.println("<html>");
try{
Enumeration e= super.getInitParameterNames();
while(e.hasMoreElements())
String paramName= (String)super.getInitParameterNames().nextElement();
String paramValue=super.getInitParameter(paramName);
pw.println("paramName="+paramName);
Context ic;
java.util.Properties props = new java.util.Properties();
props.putContext.INITIAL_CONTEXT_FACTORY, "com.inprise.j2ee.jndi.CtxFactory");
props.put(Context.URL_PKG_PREFIXES, "com.inprise.j2ee.jndi");
ic = new InitialContext();
pw.println("Initial Context"+ ic);
========================================================================
And I am getting following Error while getting the Inital Context.
============================
ERROR - javax.naming.NoInitialContextException: Cannot instantiate class: com.inprise.j2ee.jndi.CtxFactory [Root exception is java.lang.ClassCastException]
2006-09-30 05:16:27,461 ERROR - at javax.naming.spi.NamingManager.getInitialContext(Unknown Source)
2006-09-30 05:16:27,461 ERROR - at javax.naming.InitialContext.getDefaultInitCtx(Unknown Source)
2006-09-30 05:16:27,461 ERROR - at javax.naming.InitialContext.init(Unknown Source)
2006-09-30 05:16:27,461 ERROR - at javax.naming.InitialContext.<init>(Unknown Source)
2006-09-30 05:16:27,461 ERROR - at com.lucent.omcran.servlet.OmcRanTpuGuiReDirectServlet.doPost(OmcRanTpuGuiReDirectServlet.java:56)
2006-09-30 05:16:27,461 ERROR - at com.lucent.omcran.servlet.OmcRanTpuGuiReDirectServlet.doGet(OmcRanTpuGuiReDirectServlet.java:33)
2006-09-30 05:16:27,461 ERROR - at javax.servlet.http.HttpServlet.service(HttpServlet.java:740)
2006-09-30 05:16:27,461 ERROR - at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
2006-09-30 05:16:27,461 ERROR - at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:248)
2006-09-30 05:16:27,461 ERROR -
===========================================
Below are the Parameters that I use to Start my Partition
=============================================================================
-Diems.locator.localzonetype=presentation -Diems.arm.context=presentation -XX:+DisableExplicitGC= -XX:+UseCMSInitiatingOccupancyOnly= -DAPPNAME=appl1 -DContextId=1 -DCOMMONPATH=/omcsw/common -DIEMSPATH=/omcsw/28.0.1.22.00 -Djava.util.prefs.PreferencesFactory=com.lucent.iems.platform.util.prefs.spi.IEMSPreferencesFactory -Dcom.lucent.iems.prefs.PrefsDirectory=/omcsw/28.0.1.22.00/data/registry -Dorg.omg.CORBA.ORBClass=com.inprise.vbroker.orb.ORB -Dorg.omg.CORBA.ORBSingletonClass=com.inprise.vbroker.orb.ORBSingleton -Djavax.rmi.CORBA.StubClass=com.inprise.vbroker.rmi.CORBA.StubImpl -Djavax.rmi.CORBA.PortableRemoteObjectClass=com.inprise.vbroker.rmi.CORBA.PortableRemoteObjectImpl -Djavax.rmi.CORBA.UtilClass=com.inprise.vbroker.rmi.CORBA.UtilImpl -Diems.arm.factory=com.lucent.iems.platform.util.arm.impl1.ARMFactoryImpl1 -Dcom.lucent.iems.platform.util.intfc.maxnumofobjects=25 -DGUMDBPOOLNAME=GUMdb -Dvbroker.orb.enableKeyId=false
==============================================
Does Any one have Idea what is going wrong..
Ankit
You can check whether any cookies were sent in the request to your servlet:
Cookie cookies[] = request.getCookies();
if cookies is not null (cookies != null) then the browser sending you the request suppoerts cookies.
If it is null then you would need to do a little extra work. Basically add a cookie to the response going back to the browser. Then send a redirect back to this same servlet. You then would have to add code to check to see whether the cookie was sent back.
// Servlet named myServlet
String test = request.getParameter("TEST");
Cookie cookies[] = request.getCookies();
if (test == null || !test.equals("TRUE")
if (cookies == null)
response.addCookie("testCookies","testCookies");
response.sendRedirect("myServlet?TEST=TRUE");
else
// cookies were sent in the initial request, so
// browser supports cookies
else
// This is the redirect. Check the for the presence of
// our testCookie
Hope this helps.
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