Response over HTTP

[max5432]

How to send the response from a service over http?

I send a request over http with username and password. In the action-Method I
check username and password and have to send 'true' odr 'false' as String back.

Here is the Action-Class:

package demo;

import java.util.Map;
import org.jboss.soa.esb.actions.AbstractActionPipelineProcessor;
 import org.jboss.soa.esb.actions.ActionProcessingException;
 import org.jboss.soa.esb.helpers.ConfigTree;
 import org.jboss.soa.esb.http.HttpRequest;
 import org.jboss.soa.esb.message.Message;
 import org.jboss.soa.esb.message.format.MessageFactory;



public class LoginHandler extends AbstractActionPipelineProcessor{
     private ConfigTree configTree;



    public LoginHandler(ConfigTree configTree) {
         this.configTree = configTree;
     }



    public Message process(Message message) throws ActionProcessingException {
         
         String answer = "login failed";
         
         HttpRequest req = HttpRequest.getRequest(message);
         Map<String, String[]> params = req.getQueryParams();
         
         if (params != null) {
             String user = params.get("user")[0];
             String password = params.get("pwd")[0];



            System.out.println("User: " + user + ", Password: " + password);
             
             
             if (user.equals("joe") && pwd.equals("secret")){
                 answer = "login successfully";
             }
             
         } else {
             System.out.println("ParameterMap is null!");
         }
         
         /* for demo */
         Message responseMessage = MessageFactory.getInstance().getMessage();
         responseMessage.getBody().add(answer);
         
         return responseMessage;
     }
 }

And here is the jboss-esb.xml

<?xml version="1.0"?>
 <jbossesb parameterReloadSecs="5"
  xmlns="http://anonsvn.labs.jboss.com/labs/jbossesb/trunk/product/etc/schemas/xml/jbossesb-1.2.0.xsd"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://anonsvn.labs.jboss.com/labs/jbossesb/trunk/product/etc/schemas/xml/jbossesb-1.2.0.xsd http://anonsvn.jboss.org/repos/labs/labs/jbossesb/trunk/product/etc/schemas/xml/jbossesb-1.2.0.xsd">
  <services>
   <service category="DemoServices" description=""
    invmScope="GLOBAL" name="Login">
    <listeners>
     <http-gateway name="Http"/>
    </listeners>
    <actions mep="RequestResponse">
     <action
      name="LoginAction" process="process"/>
    </actions>
   </service>
  </services>
 </jbossesb>

I tried to call the service from browser:

http://localhost:8080/logintest/http/DemoServices/Login?user=joe&pwd=secret

I see the output:

15:19:29,037 INFO  [STDOUT] User: joe, Password: secret

following with error message:

15:19:29,037 WARN  [ActionProcessingPipeline] No response message for RequestResponse mep! To: InVMEpr [ PortReference < <wsa:Address invm://4461746168616e64656c53657276696365732424242424242424242424244461746152657175657374/false?false#10000/>, <wsa:ReferenceProperties jbossesb:passByValue : false/> > ] ReplyTo: InVMEpr [ PortReference < <wsa:Address invm://thread-137-43/>, <wsa:ReferenceProperties jbossesb:passByValue : false/>, <wsa:ReferenceProperties jbossesb:temporaryEPR : true/> > ] MessageID: 6330ee62-1112-4b77-81c8-0b1eb545449d
15:19:59,036 INFO  [ServiceInvoker] Unresponsive EPR: InVMEpr [ PortReference < <wsa:Address invm://4461746168616e64656c53657276696365732424242424242424242424244461746152657175657374/false?false#10000/>, <wsa:ReferenceProperties jbossesb:passByValue : false/> > ] for message: header: [  ]
15:19:59,036 INFO  [ServiceInvoker] Delivering message [header: [  ]] to DLQ.
15:19:59,121 ERROR [[Http]] Servlet.service() for servlet Http threw exception

I tried to call the same service from a simple java program:

URL url = new URL("http://localhost:8080/logintest/http/DemoServices/Login?user=joe&pwd=secret");
URLConnection connection = url.openConnection();
connection.setDoOutput(true);

PrintStream outStream = new PrintStream(connection.getOutputStream());
outStream.println("string=" + "test");
outStream.close();

DataInputStream inStream = new DataInputStream(connection.getInputStream());

// ...

I see username and password, and short time after that I get the error message:

Server returned HTTP response code: 500 for URL: http://localhost:8080/logintest/http/DemoServices/Login?user=joe&pwd=secret

What have I to do, to get response as a String? How to set configuration in jboss-esb.xml for 'response message'?

[scottdawson]

Friedrich,

Use an HttpResponse object in your action class:

HttpResponse responseInfo = new HttpResponse(HttpServletResponse.SC_OK);
responseInfo.setContentType("text/xml");
// Set other response info ...
// Set the HttpResponse instance on the ESB response Message instance
responseInfo.setResponse(responseMessage);

You can find more information in the Programmer's Guide or the javadoc.

Regards,

Scott

[max5432]

Thanks, Scot. Now it works.

[dulee]

Hi Friedrich,

I've changed action class as below but it still does not work. Could you give me your example ?

public HttpResponse process(Message message) throws ActionProcessingException {
        
         String answer = "login failed";
         ...............


         /* for demo */
        

                    HttpResponse responseInfo = new HttpResponse(HttpServletResponse.SC_OK);

                    responseInfo.setContentType("text/xml");

                    responseInfo.setResponse(responseMessage);


         return responseInfo;
     }

Thanks,

DuLee

[tcunning]

DuLee, did you check out the Programmer's Guide link that Scott posted?    It'd be helpful to see your jboss-esb.xml as well to determine whether you have the listener set up correctly.

[joe_boy12]

what happens when do you like this in your action class? instead of responseMessage use original message.

         message.getBody().add(answer);
        
         return message;