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Message:

Method Calls from Registered Service

Posted by Jay on May 18, 2001 at 8:32 PM

Hi,

I am able to bring up http, rmid, reggie...register a service
and discover the service, get an object from the lookup, but
when I execute a method from the object, I get the following error. One thing I must mention is that I am running everything
on the same machine.

(I have replaced my actual IP with 11.11.11.11 for this question)

.all -classpath .;C:\files\jini1_1\lib\jini-core.jar;C:\files\jini1_1\lib\jini-
ext.jar;C:\files\jini1_1\lib\sun-util.jar AddClient
client: ServiceRegistrar = com.sun.jini.reggie.RegistrarProxy@f2e7a27f
client: ServiceID = 2c1e2bbc-bf1b-4a49-8415-fe82e5f73d08
MyServer: ServiceMatches = net.jini.core.lookup.ServiceMatches@f73c1
MyServer: num matches = 1
MyServer: svc item 0: net.jini.core.lookup.ServiceItem@5ee671
MyServer: svc object 0: AddServiceImpl_Stub[RemoteStub [ref: [endpoint:[11.11.11.11:1413](remote),objID:[30c221:e68e0c0f74:-8000, 0]]]]
Object is: AddServiceImpl_Stub[RemoteStub [ref: [endpoint:[11.11.11.11:1413](r
emote),objID:[30c221:e68e0c0f74:-8000, 0]]]]
Exception in thread "main" java.rmi.ConnectException: Connection refused to host
: 11.11.11.11; nested exception is:
java.net.ConnectException: Connection refused: connect
java.net.ConnectException: Connection refused: connect
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(Unknown Source)
at java.net.PlainSocketImpl.connectToAddress(Unknown Source)
at java.net.PlainSocketImpl.connect(Unknown Source)
at java.net.Socket.(Unknown Source)
at java.net.Socket.(Unknown Source)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(Unknown S
ource)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(Unknown S
ource)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source)
at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source)
at sun.rmi.server.UnicastRef.invoke(Unknown Source)
at AddServiceImpl_Stub.add(Unknown Source)
at AddClient.main(AddClient.java:60)

C:\rmi\jiniclient\build>

Here is the client code:

public static void main(String[] args) throws Exception {

System.setSecurityManager( new RMISecurityManager());

LookupLocator lookUp = new LookupLocator("jini://11.11.11.11");

ServiceRegistrar registrar = lookUp.getRegistrar();

ServiceID id = registrar.getServiceID();

System.out.println ("client: ServiceRegistrar = " + registrar);

System.out.println ("client: ServiceID = " + id);

Entry[] attributes = new Entry[1];
attributes[0] = new Name("Add Service");

ServiceMatches matches = registrar.lookup(new ServiceTemplate (null, null, attributes),50);
System.out.println ("MyServer: ServiceMatches = " + matches);
System.out.println ("MyServer: num matches = "+ matches.totalMatches);
for (int i = 0; i < matches.totalMatches; i++) {
System.out.println ("MyServer: svc item " + i + ": " + matches.items[i]);
System.out.println ("MyServer: svc object " + i + ": " + matches.items[i].service);
}

ServiceItem item = (ServiceItem)matches.items[0];

AddService proxy = (AddService)item.service;

System.out.println("Object is: " + proxy.toString());

String z = proxy.add("Hello","World");

System.out.println ("Result is: " + z + "\n");

The http server shows that the stub and implementation are being
requested..but I don't see them loaded into the directory my client is running from. Should I see it?

Any help would be appreciated.

• same problem Ruddi December 27, 2001 at 8:41 AM (0)
• problem Kevin Woods December 11, 2001 at 9:52 AM (0)