[jboss-user] [JBoss Seam] - Need an advice to improve Seam-ICEfaces fileUpload Session b

[gus888]

Hi all,

I reviewed the Seam-ICEfaces fileUpload demo codes (as follows), and I want to change the SFSB to conversation bean. In addition, the codes seem a little hard to follow, anybody can give some advice on how to simplify them? I really appreciate it. Thank you very much in advance. The demo codes are listed as follows:

  | /**
  |  * <p>The InputFileBackerBean class is the backing bean for the inputfile showcase
  |  * demonstration. It is used to store the state of the file uploading
  |  * operation.</p>
  |  *
  |  * @since 0.3.0
  |  */
  | @Stateful
  | 
  | @Name("inputFileBackerBean")
  | @Scope(ScopeType.SESSION)
  | public class InputFileBackerBean implements InputFileBacker, Renderable, Serializable {
  | 
  |     private int percent = -1;
  |     private File file = null;
  |     private transient PersistentFacesState state;
  | 
  |     private String fileName = "";
  |     private String contentType = "";
  | 
  |     private InnerProgressMonitor pmImpl;
  | 
  |     private static Log log =
  |             LogFactory.getLog(InputFileBackerBean.class);
  | 
  |     public InputFileBackerBean() {
  |         pmImpl = new InnerProgressMonitor();
  |         state = PersistentFacesState.getInstance();
  |     }
  | 
  |     public PersistentFacesState getState() {
  |         return state;
  |     }
  | 
  |     public void renderingException (RenderingException re) {
  |         log.error("Rendering exception " , re);
  |     }
  | 
  | 
  |     public void setPercent(int percent) {
  |         this.percent = percent;
  |     }
  | 
  |     public int getPercent() {
  |         return percent;
  |     }
  | 
  |     public void setFile(File file) {
  |         this.file = file;
  |     }
  | 
  |     public File getFile() {
  |         return file;
  |     }
  | 
  |     public InnerProgressMonitor getProgressMonitor() {
  |         return pmImpl;
  |     }
  | 
  |     public InnerProgressMonitor getActionMonitor() {
  |         return pmImpl;
  |     } 
  | 
  | 
  |     public void setFileName(String fileName) {
  |         this.fileName = fileName;
  |     }
  | 
  |     public String getFileName() {
  | 
  |         return fileName;
  |     }
  | 
  |     public void setContentType(String contentType) {
  |         this.contentType = contentType;
  |     }
  | 
  |     public String getContentType() {
  |         return contentType;
  |     }
  | 
  |     @Remove
  |     @Destroy
  |     public void destroy() {
  |     }
  | 
  | 
  |     /**
  |      * Inner class to handle updates and action. Do this to keep the
  |      * render call from triggering concurrent access problems in the Bean. 
  |      */
  |     public class InnerProgressMonitor implements
  |                                       Serializable {
  | 
  | 
  | 
  |         public void progress(EventObject event) {
  | 
  |             com.icesoft.faces.component.inputfile.InputFile file =
  |                     (com.icesoft.faces.component.inputfile.InputFile) event.getSource();
  |             int percent = file.getFileInfo().getPercent();
  |             InputFileBackerBean.this.setPercent( percent );
  |             InputFileBackerBean.this.setFile( file.getFile() );
  | 
  |             if (log.isDebugEnabled()) {
  |                 log.debug("Progress - Percent: " + percent);
  |             }
  |               try {
  |                 // execute the lifecycle to initialize Seam to prevent
  |                 // IllegalStateExceptions, and render.
  |                 state.execute();
  |                 state.render();
  | 
  |             } catch (RenderingException re ) {
  |                 System.out.println("Rendering exception : " + re);
  |                 re.printStackTrace();
  |             }
  |         }
  | 
  | 
  | 
  | 
  |         public String action(ActionEvent event) {
  | 
  |             com.icesoft.faces.component.inputfile.InputFile inputFile = (com.icesoft.faces.component.inputfile.InputFile) event.getSource();
  |             if (inputFile.getStatus() == com.icesoft.faces.component.inputfile.InputFile
  |                     .SAVED) {
  |                 InputFileBackerBean.this.setFileName(inputFile.getFileInfo().getFileName());
  |                 InputFileBackerBean.this.setContentType(inputFile.getFileInfo().getContentType());
  |                 InputFileBackerBean.this.setFile(inputFile.getFile());
  | 
  |                 if (log.isDebugEnabled()) {
  |                     log.debug("File uploaded: " + inputFile.getFileInfo().getFileName());
  |                 }
  |             }
  | 
  |             if (inputFile.getStatus() == com.icesoft.faces.component.inputfile.InputFile
  |                     .INVALID) {
  |                 inputFile.getFileInfo().getException().printStackTrace();
  |             }
  | 
  |             if (inputFile.getStatus() == com.icesoft.faces.component.inputfile.InputFile
  |                     .SIZE_LIMIT_EXCEEDED) {
  |                 inputFile.getFileInfo().getException().printStackTrace();
  |             }
  | 
  |             if (inputFile.getStatus() == com.icesoft.faces.component.inputfile.InputFile
  |                     .UNKNOWN_SIZE) {
  |                 inputFile.getFileInfo().getException().printStackTrace();
  |             }
  |             return null;
  |         }
  |     }
  | 
  | }
  | and also the jsp codes:
                <ice:panelGrid
  |                         styleClass="componentLayoutRootTable"
  |                         columns="1">
  |                     <ice:panelGroup styleClass="formBorderHighlight"
  |                                     style="text-align:left">
  |                         <ice:inputFile
  |                             progressListener="#{inputFileBackerBean.progressMonitor.progress}"
  |                             actionListener="#{inputFileBackerBean.actionMonitor.action}"/>
  |                         <ice:outputProgress id="pro"
  |                                             value="#{inputFileBackerBean.percent}"/>
  |                         <ice:outputText
  |                                 value="File Name: #{inputFileBackerBean.fileName}"/>
  |                         <br/>
  |                         <ice:outputText
  |                                 value="Content Type: #{inputFileBackerBean.contentType}"/>
  |                         <ice:messages/>
  |                     </ice:panelGroup>
  |                 </ice:panelGrid>

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