Beginner needs help with SOAP with attachments

[balteo]

Hello,

I would like for a ws client to retrieve an image from a ws endpoint. I am totally confused as to what encoding style to choose as well as how to implement it.

Here is the code for the client:

package pack;


import java.awt.Image;
import java.io.*;

import javax.servlet.*;
import javax.servlet.http.*;

public class ServletFetchesAttachment extends HttpServlet {

 protected void processRequest(HttpServletRequest request, HttpServletResponse response)
 throws ServletException, IOException {

 System.out.println("processRequest");

 PrintWriter out = response.getWriter();
 try {
 Image img = getProvidesAttachmentSEIPort().retrieveAttachment();
 } catch(java.rmi.RemoteException ex) {
 ex.printStackTrace();
 } catch(Exception ex) {
 ex.printStackTrace();
 }
 out.close();
 }

 // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
 /** Handles the HTTP <code>GET</code> method.
 * @param request servlet request
 * @param response servlet response
 */
 protected void doGet(HttpServletRequest request, HttpServletResponse response)
 throws ServletException, IOException {
 processRequest(request, response);
 }

 /** Handles the HTTP <code>POST</code> method.
 * @param request servlet request
 * @param response servlet response
 */
 protected void doPost(HttpServletRequest request, HttpServletResponse response)
 throws ServletException, IOException {
 processRequest(request, response);
 }

 /** Returns a short description of the servlet.
 */
 public String getServletInfo() {
 return "Short description";
 }
 // </editor-fold>

 private pack.ProvidesAttachment getProvidesAttachment() {
 pack.ProvidesAttachment providesAttachment = null;
 try {
 javax.naming.InitialContext ic = new javax.naming.InitialContext();
 providesAttachment = (pack.ProvidesAttachment) ic.lookup("java:comp/env/service/ProvidesAttachment");
 } catch(javax.naming.NamingException ex) {
 ex.printStackTrace();
 }
 return providesAttachment;
 }

 private pack.ProvidesAttachmentSEI getProvidesAttachmentSEIPort() {
 pack.ProvidesAttachmentSEI providesAttachmentSEIPort = null;
 try {
 providesAttachmentSEIPort = getProvidesAttachment().getProvidesAttachmentSEIPort();
 } catch(javax.xml.rpc.ServiceException ex) {
 ex.printStackTrace();

 }
 return providesAttachmentSEIPort;
 }


}

Here is the code for the endpoint:

package pack;

import java.awt.Image;
import java.awt.Toolkit;
import java.net.MalformedURLException;
import java.net.URL;


public class ProvidesAttachmentImpl implements ProvidesAttachmentSEI{

 public Image retrieveAttachment() throws java.rmi.RemoteException {
 URL url=null;
 Image image = null;
 try {
 url = new URL("file:///home//julien//tests//logo.gif");
 image = Toolkit.getDefaultToolkit().createImage(url);

 } catch (MalformedURLException ex) {
 ex.printStackTrace();
 }
 return image;
 }

}

Here is the wsdl:

<?xml version="1.0" encoding="UTF-8"?>
<definitions name="ProvidesAttachment" targetNamespace="urn:ProvidesAttachment/wsdl" xmlns="http://schemas.xmlsoap.org/wsdl/" xmlns:ns2="http://java.sun.com/jax-rpc-ri/internal" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="urn:ProvidesAttachment/wsdl" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
 <types>
 <schema targetNamespace="http://java.sun.com/jax-rpc-ri/internal" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:soap11-enc="http://schemas.xmlsoap.org/soap/encoding/" xmlns:tns="http://java.sun.com/jax-rpc-ri/internal" xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 <import namespace="http://schemas.xmlsoap.org/soap/encoding/"/>
 <simpleType name="image">
 <restriction base="base64Binary"/></simpleType></schema>
 </types>
 <message name="ProvidesAttachmentSEI_retrieveAttachmentResponse">
 <part name="result" type="ns2:image"/>

 </message>
 <message name="ProvidesAttachmentSEI_retrieveAttachment">
 </message>
 <portType name="ProvidesAttachmentSEI">
 <operation name="retrieveAttachment">
 <input message="tns:ProvidesAttachmentSEI_retrieveAttachment"/>
 <output message="tns:ProvidesAttachmentSEI_retrieveAttachmentResponse"/>
 </operation>
 </portType>

 <binding name="ProvidesAttachmentSEIBinding" type="tns:ProvidesAttachmentSEI">
 <soap:binding style="rpc" transport="http://schemas.xmlsoap.org/soap/http"/>
 <operation name="retrieveAttachment">
 <soap:operation soapAction=""/>
 <input>
 <soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="urn:ProvidesAttachment/wsdl" use="encoded"/>
 </input>
 <output>
 <soap:body encodingStyle="http://schemas.xmlsoap.org/soap/encoding/" namespace="urn:ProvidesAttachment/wsdl" use="encoded"/>

 </output>
 </operation>
 </binding>
 <service name="ProvidesAttachment">
 <port binding="tns:ProvidesAttachmentSEIBinding" name="ProvidesAttachmentSEIPort">
 <soap:address location="http://ordinateur:8080/WebAppProvidesAttachment/ProvidesAttachment"/>
 </port>
 </service>
</definitions>

Any help greatly appreciated.

Thanks in advance,

Julien.