Hello.
I know it has been mentioned in serveral times.
However, I could not make Orion as EJB server work with Apache & Tomcat.
A servlet is placed to access ejb at tomcat's WEB-INF/classes directory,
along with application-client.xml under META-INF directory.
The servlet looks as follows:
import java.io.IOException;
import java.util.Date;
import java.util.*;
import java.util.Properties;
import javax.naming.*;
import javax.servlet.*;
import javax.servlet.http.*;
import javax.rmi.PortableRemoteObject;
import hello.ejb.Hello;
import hello.ejb.HelloHome;
public class HelloServlet extends HttpServlet {
// constructor
public HelloServlet() {
super();
trace("<init>");
}
// A reference to the remote `Hello' object
protected Hello _hello;
// Initializes this servlet
public void init(ServletConfig config) throws ServletException {
super.init(config);
trace("init");
Hashtable env = new Hashtable();
env.put("java.naming.factory.initial",
"com.evermind.server.ApplicationClientInitialContextFactory");
env.put("java.naming.provider.url",
"ormi://localhost:800/hello-planet");
env.put("java.naming.security.principal", "admin");
env.put("java.naming.security.credentials", "admin");
// Get the initial JNDI context using our settings
Context initial;
try {
initial = new InitialContext(env);
}
catch (Throwable exception) {
throw new ServletException(
"Unable to get initial JNDI context: " +
exception.toString());
}
// Get a reference to the Hello home interface
HelloHome helloHome;
try {
Object objref = initial.lookup("ejb/Hello");
helloHome = (HelloHome)PortableRemoteObject.narrow(objref,
HelloHome.class);
}
catch (Throwable exception) {
throw new ServletException(
"Unable to get home interface: " + exception.toString());
}
// Get a reference to a Hello instance
try {
_hello = helloHome.create();
}
catch (Throwable exception) {
throw new ServletException(
"Unable to create Hello instance: " + exception.toString());
}
// Insanity check: Make sure we have a valid reference
if (_hello == null) {
throw new ServletException(
"Unable to create Hello instance, create() returned null");
}
}
// Handles the HTTP GET request
public void doGet(HttpServletRequest request, HttpServletResponse
response)
throws ServletException, IOException {
trace("doGet");
ServletOutputStream out = response.getOutputStream();
response.setContentType("text/html");
// Get the answer from the bean
String answer;
try {
answer = _hello.sayHello();
}
catch (Throwable exception) {
out.println("<HTML><BODY bgcolor=\"#FFFFFF\">");
out.println("Time stamp: " + new Date().toString());
out.println("<BR>Hello type: " + _hello.getClass().getName());
out.println("Error calling the Hello bean");
out.println(exception.toString());
out.println("</BODY>");
out.println("</HTML>");
return;
}
out.println("<HTML><BODY bgcolor=\"#FFFFFF\">");
out.println("Time stamp: " + new Date().toString());
out.println("<BR>Hello type: " + _hello.getClass().getName());
out.println("<BR>Answer: " + answer);
out.println("</BODY>");
out.println("</HTML>");
}
// Displays a trace message to System.out
private void trace(String methodName) {
System.out.print(methodName);
System.out.println("() called");
}
}
However, when I call this servlet from Apache, it complains as follows:
javax.servlet.ServletException: Unable to get initial JNDI context:
javax.naming.NamingException: Error reading application-client
descriptor: Error communicating with server: Lookup error:
java.net.ConnectException: Connection refused; nested exception is:
java.net.ConnectException: Connection refused; nested exception is:
javax.naming.NamingException: Lookup error: java.net.ConnectException:
Connection refused; nested exception is:
java.net.ConnectException: Connection refused
at java.lang.Throwable.fillInStackTrace(Native Method)
at java.lang.Throwable.fillInStackTrace(Compiled Code)
at java.lang.Throwable.(Compiled Code)
at java.lang.Exception.(Compiled Code)
at javax.servlet.ServletException.(Compiled Code)
at HelloServlet.init(Compiled Code)
at org.apache.tomcat.core.ServletWrapper.doInit(Compiled Code)
at org.apache.tomcat.core.Handler.init(Compiled Code)
at org.apache.tomcat.core.ServletWrapper.init(Compiled Code)
at org.apache.tomcat.core.Handler.service(Compiled Code)
at org.apache.tomcat.core.ServletWrapper.service(Compiled Code)
at org.apache.tomcat.core.ContextManager.internalService(Compiled Code)
at org.apache.tomcat.core.ContextManager.service(Compiled Code)
at
org.apache.tomcat.service.connector.Ajp12ConnectionHandler.processConnection(Compiled
Code)
at org.apache.tomcat.service.TcpWorkerThread.runIt(Compiled Code)
at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(Compiled Code)
at java.lang.Thread.run(Compiled Code)
Again, application-client.xml file is at under tomcat's
webapps/WEB-INF/META-INF dir.
I tried putting META-INF/application-client.xml file in the webapps dir,
which resulted in the same error.
Does anybody have an insight on this?
Thanks in advance.
--
JangHo Ki
R&D Developer
Crunchy Technologies
-----------------------------
2111 wilson blvd, suite 350
Arlington, VA 22201
-----------------------------
Work:703.469.2040
Cell:240.606.8865
Fax :703.243.7045
