RE: Slow instantiation of the Service class in client

[Anecito, Anthony (HQP)]

Title: Slow instantiation of the Service class in client

Hi Guys,

 

I had the same problem in Windows 2000 runing on a 500MHz P3 or a 1.1GHz K6AMD. I saw it happen in either a Sun rpc service client or an Axis one. The call object instantiation was very quick. The best I could do was pool the service object so I did not have to worry about serialization in the architecture slowing things down. I am using an Applet and people told me that using that combined with the "Big" download of Axis jars to support the client API of Axis was the problem. I solved my problem by going to a much lighter and very much faster implementation of client-side SOAP. My service time is now "0sec" on the same hardware and I actually can smile again.

 

I would be interested if you find out the issue. Perhaps Brian has a stand-alone application and Jason a mobile code type application?

 

Best Regards,

-Tony

-----Original Message-----
From: Brian Ko [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 11, 2003 12:20 PM
To: '[EMAIL PROTECTED]'
Subject: RE: Slow instantiation of the Service class in client

I am a newbie in Axis. But I am also working on message style service.

I tested your program (without service installed) in window 2000 environment but the response was much quicker than 8 seconds. That may mean that the slowness is from your service, not the client. If you can share your service class code and wsdd file, I am willing to test it here.

 

Brian Ko

[EMAIL PROTECTED]

-----Original Message-----
From: Trieu, Jason T - CNF [mailto:[EMAIL PROTECTED]
Sent: Tuesday, March 11, 2003 12:02 PM
To: '[EMAIL PROTECTED]'
Subject: Slow instantiation of the Service class in client

I am developing a test message-style AXIS client & server and notice that the client takes about 8 seconds for the client to instantiate the Service class on an IBM RS6000 AIX4.3 machine.  Is this quite normal or am I doing something wrong?  I used the provided sample code for message-style clients to create mine.  Below is the code.  Appreciate any insight in this.

---------------------------------------------------------------------------------------------------------------------------

package ping.client;

import javax.xml.parsers.*;
import org.w3c.dom.*;
import org.apache.axis.client.*;
import org.apache.axis.message.*;
import org.apache.axis.utils.*;
import java.io.*;
import java.text.*;
import java.net.URL;
import java.util.*;

public class pingClient {
  

    public void sendIt(String args[]) throws Exception {

        String endpointURL = "http://"+args[0]+":8080/axis/services/pingService";

        // Create Call object (via Service) to call server

        // ****** This statement takes 8 seconds to complete *************
        Service  sv = new Service();

        Call call = (Call) sv.createCall();
        call.setTargetEndpointAddress(new URL(endpointURL));

        // Create a SOAP body elements to send to server
        SOAPBodyElement[] Selems = new SOAPBodyElement[2];

        // Build DOM Document via Factory and builder
        DocumentBuilderFactory fact = DocumentBuilderFactory.newInstance();
        DocumentBuilder builder = fact.newDocumentBuilder();

        // Now create DOM doc to use for creating DOM elements
        Document DOMdoc = builder.newDocument();

        // Create SOAP element using DOM doc
        Element ping = DOMdoc.createElementNS("cnf:dms","PING");
        org.w3c.dom.Text pingdata = DOMdoc.createTextNode("are you there?");
        ping.appendChild(pingdata);
        Selems[0] = new SOAPBodyElement(ping);

        // Create SOAP element using XMLUtils
        Selems[1] = new SOAPBodyElement(XMLUtils.StringToElement("cnf:dms",
                                                    "PONG","let me know"));

        // Call the sever
        Vector resp = (Vector) call.invoke(Selems);

        // Get SOAP elemements and DOM elements

        SOAPBodyElement retSOAPel = null;
        Element retDOMel = null;

        for (int i = 0; i<resp.size();i++) {
            retSOAPel = (SOAPBodyElement) resp.get(i);
            retDOMel = retSOAPel.getAsDOM();
            System.out.println("Element "+i+": "+XMLUtils.ElementToString(retDOMel));
        }

    }

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

        if (args.length < 1) {
            System.out.println("Bad Host");
            System.exit(1);
        }

        (new pingClient()).sendIt(args);
    }

} // End of class