1 Reply Latest reply on Nov 17, 2009 5:35 PM by Ladislav Matis

    MultipartRequest handling after upload invoked by applet

    Ladislav Matis Newbie

      Hello !


      I'm trying to handle MultipartRequest after upload invoked by Jumploader applet. This applet's providing multi files uploading.
      So here is my scenario:


      My snippet of ScanHome.xhtml:



      <!-- JumpLoader -->
      <applet name="jumpLoaderApplet"
           code="jmaster.jumploader.app.JumpLoaderApplet.class"
           archive="/odkup-war/applet/messages_sk.zip, /odkup-war/applet/jumploader_z.jar"
           width="100%" height="500">
      
      <param name="uc_uploadUrl" value="/odkup-war/UHTest.seam?actionName=UPLOAD" />
      <param name="uc_resumeCheckUrl" value="/odkup-war/UHTest.seam?actionName=RESUME" />
      .....
      


      Notice two important params - uc-uploadUrl and uc-resumeCheckUrl. These params hold values of URL which are called to fire upload/resume.


      My snippet of web.xml



      <filter>
        <filter-name>Seam Filter</filter-name>
        <filter-class>org.jboss.seam.servlet.SeamFilter</filter-class>
      </filter>
      <filter-mapping>
        <filter-name>Seam Filter</filter-name>
        <url-pattern>/*</url-pattern>
      </filter-mapping>
           
      <filter>
      <filter-name>Seam Multipart Filter</filter-name>
        <filter-class>org.jboss.seam.web.MultipartFilter</filter-class>
      </filter>
      <filter-mapping>
        <filter-name>Seam Multipart Filter</filter-name>
        <url-pattern>*.seam</url-pattern>
      </filter-mapping>



      Enabled multipart filter.


      My snippet of components.xml



      <web:multipart-filter create-temp-files="true" max-request-size="1000000" url-pattern="*.seam" />



      Enabled multipart filter with create-temp-files set to true.


      UHTest.xhtml is empty file only with composition tag, here is snippet of UHTest.page.xml



      <?xml version="1.0" encoding="UTF-8"?>
      <page view-id="/UHTest.xhtml" action="#{Uhtest.someAction()}">
      </page> 


      When UHTest is fired from jumploader applet, action Uhtest.someAction() is called to handle multipart form request


      My snippet of UHTest.java



      @Name("Uhtest")
      @Scope(ScopeType.SESSION)
      public class UHTest { .....
      
      public void someAction(){
        FacesContext ctx = FacesContext.getCurrentInstance();
        org.jboss.seam.web.MultipartRequest request = (org.jboss.seam.web.MultipartRequest)ctx.getExternalContext().getRequest();
      
        //Check parameters inside of request - should be 7, but list is empty
        Enumeration en = request.getParameterNames();
        while(en.hasMoreElements()){
          Object param = (Object) en.nextElement();
          System.out.println(param+" - "+request.getParameter(param.toString()));
        }
        //Calling file param - returns --- BINARY DATA ---
        System.out.println(request.getParameter("file"));
      
        //Returns NULL :o(
        request.getFileBytes("file");
      }
      



      Result is following:


      1. File(s) are uploaded correctly to temporary folder ! It's name is something like 1234-5678.upload.


      2. When I cast request to MultipartRequest there is no exception.



      Problems:


      1. I cannot receive list of parameters inserted to multi-part form by applet.


      2. The most important thing - I cannot recieve bytes of uploaded file !!


      What is wrong ?
      Is such a approach correct ? I'm not really sure about UHTest.page.xml approach to call java method ...


      Thank you for your reply.