MTOM example

[nitin pokhriyal]

i am running Ivan's example which is in 10.3 section. below is my wsdl

  <?xml version="1.0" encoding="UTF-8" ?> 
- <!--  Published by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is JAX-WS RI 2.2.1-hudson-28-. 
  --> 
- <!--  Generated by JAX-WS RI at http://jax-ws.dev.java.net. RI's version is JAX-WS RI 2.2.1-hudson-28-. 
  --> 
- <definitions xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd" xmlns:wsp="http://www.w3.org/ns/ws-policy" xmlns:wsp1_2="http://schemas.xmlsoap.org/ws/2004/09/policy" xmlns:wsam="http://www.w3.org/2007/05/addressing/metadata" xmlns:soap="http://schemas.xmlsoap.org/wsdl/soap/" xmlns:tns="http://service.ivan.com/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns="http://schemas.xmlsoap.org/wsdl/" targetNamespace="http://service.ivan.com/" name="PictureManagerService">
- <wsp:Policy wsu:Id="PictureManagerPortBinding_MTOM_Policy-PictureManagerPortBinding_MTOM_Policy">
  <ns1:OptimizedMimeSerialization xmlns:ns1="http://schemas.xmlsoap.org/ws/2004/09/policy/optimizedmimeserialization" wsp:Optional="true" /> 
  </wsp:Policy>
- <types>
- <xsd:schema>
  <xsd:import namespace="http://service.ivan.com/" schemaLocation="http://localhost:8081/MTOMWebService/PictureManagerService?xsd=1" /> 
  </xsd:schema>
  </types>
- <message name="retrievePicture">
  <part name="parameters" element="tns:retrievePicture" /> 
  </message>
- <message name="retrievePictureResponse">
  <part name="parameters" element="tns:retrievePictureResponse" /> 
  </message>
- <message name="supplyPicture">
  <part name="parameters" element="tns:supplyPicture" /> 
  </message>
- <message name="supplyPictureResponse">
  <part name="parameters" element="tns:supplyPictureResponse" /> 
  </message>
- <portType name="PictureManager">
- <operation name="retrievePicture">
  <input wsam:Action="http://service.ivan.com/PictureManager/retrievePictureRequest" message="tns:retrievePicture" /> 
  <output wsam:Action="http://service.ivan.com/PictureManager/retrievePictureResponse" message="tns:retrievePictureResponse" /> 
  </operation>
- <operation name="supplyPicture">
  <input wsam:Action="http://service.ivan.com/PictureManager/supplyPictureRequest" message="tns:supplyPicture" /> 
  <output wsam:Action="http://service.ivan.com/PictureManager/supplyPictureResponse" message="tns:supplyPictureResponse" /> 
  </operation>
  </portType>
- <binding name="PictureManagerPortBinding" type="tns:PictureManager">
  <wsp:PolicyReference URI="#PictureManagerPortBinding_MTOM_Policy-PictureManagerPortBinding_MTOM_Policy" /> 
  <soap:binding transport="http://schemas.xmlsoap.org/soap/http" style="document" /> 
- <operation name="retrievePicture">
  <soap:operation soapAction="" /> 
- <input>
  <soap:body use="literal" /> 
  </input>
- <output>
  <soap:body use="literal" /> 
  </output>
  </operation>
- <operation name="supplyPicture">
  <soap:operation soapAction="" /> 
- <input>
  <soap:body use="literal" /> 
  </input>
- <output>
  <soap:body use="literal" /> 
  </output>
  </operation>
  </binding>
- <service name="PictureManagerService">
- <port name="PictureManagerPort" binding="tns:PictureManagerPortBinding">
  <soap:address location="http://localhost:8081/MTOMWebService/PictureManagerService" /> 
  </port>
  </service>
  </definitions>

When i run the example in SOAPUI i got back bytes in response but attachment tab hadnothing in it. Only header tab has 6 properties. Am i missing something? i see the poseted wsdl in chapter and i have difference in policy tag also. Why is it so?

Thanks in advance

[Ivan Krizsan]

Hi!
The policy declaration you have do look fine. It is not exactly match that in my book, but I think it is equivalent.
Are you deploying the service to GlassFish and if so, which version?
There may be some differences between, say, GlassFish 2 (which I used when writing the book) and GlassFish v3.
If you let me know what version you are using, I can try the service here.
Also, have you tried to run the client? With what result?
Best wishes!

[nitin pokhriyal]

I am using glassfishv3 version. I have not tried other client, i used on soapui. I will give it a try but how to verify if respnose contains attachment. should i use TCP/IP monitoring tool.

[Ivan Krizsan]

Hi!
It turns out that the way I used to read the picture files, which worked fine in GlassFish v2, do not work in GlassFish v3.
I have corrected the retrievePicture method and the new version looks like this:

    /**
     * Retrieves the picture with the supplied number.
     * 
     * @parm inImageNumber Number of image to retrieve.
     * @return Image with number as specified, or null if no such
     * no such image exits.
     */
    @WebMethod(operationName = "retrievePicture")
    public Image retrievePicture(@WebParam(name = "inImageNumber")
            final int inImageNumber)
    {
        Image theImage = null;

        /*
         * In order to be able to retrieve the image the client wants
         * we need to get the servlet context.
         * Using the servlet context, we can then retrieve the proper
         * image located in the web contents of this application.
         */
        MessageContext theMsgContext = mWSContext.getMessageContext();
        ServletContext theServletContext = (ServletContext) theMsgContext.get(
                MessageContext.SERVLET_CONTEXT);

        if (theServletContext != null)
        {
            /* Try reading the image. */
            String theImageFileName = "/numbers/" + inImageNumber + ".jpg";
            URL theImageFileUrl = null;
            
            try
            {
                theImageFileUrl = theServletContext.getResource(theImageFileName);
                theImage = ImageIO.read(theImageFileUrl);
            } catch (IOException theException)
            {
                System.out.println("An error occurred trying to read image:");
                theException.printStackTrace();
            }
        } else
        {
            System.out.println("No servlet context, cannot retrieve image!");
        }
        
        return theImage;
    }

Thanks for pointing this problem out to me.
Best wishes!

[nitin pokhriyal]

still no luck for me, I still got response but not attchment with new example also.

[Ivan Krizsan]

Hi!
GlassFish v3 has apparently changed what is the result of enabling MTOM in a service.
As you correctly point out, the policy declaration is different and if you look even closer, you can see that MTOM is no longer mandatory, but optional:

...
<wsp:Policy wsu:Id="PictureManagerPortBinding_MTOM_Policy-PictureManagerPortBinding_MTOM_Policy">  
    <ns1:OptimizedMimeSerialization xmlns:ns1="http://schemas.xmlsoap.org/ws/2004/09/policy/optimizedmimeserialization" wsp:Optional="true" />   
</wsp:Policy>
... 

This causes soapUI to choose not to use MTOM when interacting with the service and thus you see no attachments in soapUI.
When I just tried the client program, shown later in section 10.3, and used a packet sniffer to examine the communication with the web service, then I found that MTOM was indeed enabled.
I will make updates to my study guide when I have time and when I have thought a little about the best way to write about this to cover both GlassFish v2 and v3.
Best wishes!

P.S. The client program seems to have a problem displaying the fetched picture now and then, I will look into this as well (guess I need to brush up my old Swing knowledge. ).

[Ivan Krizsan]

Hi!
This fixes the client program (exchange the method with the same name for the new version below):

    /**
     * Shows the picture, which data is supplied, in a window.
     * 
     * @param inImageBytes Picture data.
     * @throws IOException If error occurs reading picture data.
     */
    private static void showPicture(byte[] inImageBytes) throws IOException
    {
        ByteArrayInputStream theBIS = new ByteArrayInputStream(inImageBytes);
        ImageInputStream theIIS = ImageIO.createImageInputStream(theBIS);
        BufferedImage theImg = ImageIO.read(theIIS);
        
        JFrame theWindow = new JFrame();
        theWindow.setSize(150, 150);
        JLabel thePictureLabel = new JLabel(new ImageIcon(theImg));
        theWindow.add(thePictureLabel);

        theWindow.setVisible(true);
    }

Best wishes!

[Ivan Krizsan]

Hi!
Ah, finally! :-)
I managed to change the settings of the request in soapUI so that MTOM is forced, see picture below.
This way, you will get to see the attachment, as described in the tutorial!
Best wishes!

[nitin pokhriyal]

Yes... that works by chaning properties in soapui. Thanks alot for your help.

[Fabio Spadaro]

Ivan Krizsan wrote:Hi!
Ah, finally! :-)
I managed to change the settings of the request in soapUI so that MTOM is forced, see picture below.
This way, you will get to see the attachment, as described in the tutorial!
Best wishes!

Hi, it does work for me too but in the soapui the content-type of attachement is image/png instead of image/jpeg. Why?