Add Java SOAP Handler to the Client Code

Step:
1. Implement SOAPHandler class
2. Implement authentication part to the SOAPHandler part
2. Add SOAP handler to the Service class.

import java.util.Collections;
import java.util.Set;
import java.util.logging.Logger;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.xml.namespace.QName;
import javax.xml.soap.SOAPElement;
import javax.xml.soap.SOAPEnvelope;
import javax.xml.soap.SOAPFactory;
import javax.xml.soap.SOAPHeader;
import javax.xml.ws.handler.MessageContext;
import javax.xml.ws.handler.soap.SOAPHandler;
import javax.xml.ws.handler.soap.SOAPMessageContext;


public class AuthenticationHandler implements SOAPHandler {

private static Logger log = Logger.getLogger(GCAuthenticationHandler.class.getName());

private String emailAddress;
private String password;


private String url = "http://www.localhost.net/webservice/";

private static final String CAuthenticationHeader= "CAuthenticationHeader";

public static enum AuthenticationHeader {EmailAddress, Password}



public GCAuthenticationHandler(String emailAddress, String password){
 this.emailAddress = emailAddress;
 this.password = password;

}


public GCAuthenticationHandler(String emailAddress, String password, String url){
 this(emailAddress, password);
 this.url = url;
}

@PostConstruct
public void init() {
}

@PreDestroy
public void destroy() {
}

public boolean handleMessage(SOAPMessageContext smc) {

 boolean direction = ((Boolean) smc.get(SOAPMessageContext.MESSAGE_OUTBOUND_PROPERTY)).booleanValue();

 if (direction) {

     try {

         // get SOAP envelope from SOAP message
         SOAPEnvelope envelope = smc.getMessage().getSOAPPart().getEnvelope();

         // create instance of SOAP factory
         SOAPFactory soapFactory = SOAPFactory.newInstance();

         // create SOAP elements specifying prefix and URI
         SOAPElement headerElm = soapFactory.createElement(CAuthenticationHeader, "", url);

         SOAPElement idElm = soapFactory.createElement(AuthenticationHeader.Password.name(),"", url);
         idElm.addTextNode(password);

         SOAPElement passwdElm = soapFactory.createElement(AuthenticationHeader.EmailAddress.name(),"", url);
         passwdElm.addTextNode(emailAddress);


         // add child elements to the root element
         headerElm.addChildElement(idElm);
         headerElm.addChildElement(passwdElm);


         // create SOAPHeader instance for SOAP envelope
         SOAPHeader sh = envelope.addHeader();

         // add SOAP element for header to SOAP header object
         sh.addChildElement(headerElm);
     } catch (Exception ex) {
         ex.printStackTrace();
     }


 }

 return true;

}

public Set getHeaders() {
 return Collections.EMPTY_SET;
}

public boolean handleFault(SOAPMessageContext messageContext) {
 return true;
}

public void close(MessageContext context) {
}
}