1 Reply Latest reply on Nov 17, 2009 5:35 PM by lacino25

    MultipartRequest handling after upload invoked by applet

    lacino25
    lacino25 Nov 16, 2009 8:50 PM

      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.






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