rich:fileupload with request scope?
How we can upload files with backing beans having the request scope. It is working fine with the session scope. But when i change the scope from session to request it stops showing the picture im using the following code.
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:rich="http://richfaces.org/rich"
xmlns:t="http://myfaces.apache.org/tomahawk">
<ui:composition template="layout.xhtml">
<ui:define name="title">Picture Upload</ui:define>
<ui:define name="content">
<f:view>
<rich:panel>
<f:facet name="header">
<h:outputText value="Picture Upload" />
</f:facet>
<h:form id="uploadPic">
<h:panelGrid columns="2" id="user">
<h:outputText value="User Name" />
<h:inputText value="#{fileUploadBean.userName}" id="userName"/>
</h:panelGrid>
<h:panelGrid columns="2" columnClasses="top,top">
<rich:fileUpload fileUploadListener="#{fileUploadBean.listener}"
maxFilesQuantity="#{fileUploadBean.uploadsAvailable}" id="upload"
immediateUpload="false"
acceptedTypes="jpg, jpeg, gif, png, bmp"
allowFlash="true" >
<a4j:support event="onuploadcomplete" reRender="info" process="uploadPic"/>
</rich:fileUpload>
<h:panelGroup id="info">
<rich:panel bodyClass="info">
<f:facet name="header">
<h:outputText value="Uploaded Files Info" />
</f:facet>
<h:outputText value="No files currently uploaded"
rendered="#{fileUploadBean.size==0}" />
<rich:dataGrid columns="1" value="#{fileUploadBean.files}"
var="file" rowKeyVar="row">
<rich:panel bodyClass="rich-laguna-panel-no-header">
<h:panelGrid columns="2">
<a4j:mediaOutput element="img" mimeType="#{file.mime}"
createContent="#{fileUploadBean.paint}" value="#{row}"
style="width:100px; height:100px;" cacheable="true">
<f:param value="#{fileUploadBean.timeStamp}" name="time" />
</a4j:mediaOutput>
<h:panelGrid columns="2">
<h:outputText value="User Name:" />
<h:outputText value="#{fileUploadBean.userName}" />
<h:outputText value="File Name:" />
<h:outputText value="#{file.name}" />
<h:outputText value="File Length(bytes):" />
<h:outputText value="#{file.length}" />
</h:panelGrid>
</h:panelGrid>
</rich:panel>
</rich:dataGrid>
</rich:panel>
<rich:spacer height="3" />
<br />
<a4j:commandButton action="#{fileUploadBean.clearUploadData}"
reRender="info, upload" value="Clear Uploaded Data"
rendered="#{fileUploadBean.size>0}" />
</h:panelGroup>
</h:panelGrid>
</h:form>
</rich:panel>
</f:view>
</ui:define>
</ui:composition>
</html>
package backingBeans;
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import org.richfaces.event.UploadEvent;
import org.richfaces.model.UploadItem;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Component;
/**
* @author Ilya Shaikovsky
*
*/
@Component("fileUploadBean")
@Scope("request")
public class FileUploadBean{
private ArrayList<File> files = new ArrayList<File>();
private int uploadsAvailable = 5;
private boolean autoUpload = false;
private boolean useFlash = true;
private String userName;
public int getSize() {
if (getFiles().size()>0){
return getFiles().size();
}else
{
return 0;
}
}
public FileUploadBean() {
}
public void paint(OutputStream stream, Object object) throws IOException {
stream.write(getFiles().get((Integer)object).getData());
}
public void listener(UploadEvent event) throws Exception{
UploadItem item = event.getUploadItem();
File file = new File();
file.setLength(item.getData().length);
file.setName(item.getFileName());
file.setData(item.getData());
files.add(file);
uploadsAvailable--;
}
public String clearUploadData() {
files.clear();
setUploadsAvailable(5);
return null;
}
public long getTimeStamp(){
return System.currentTimeMillis();
}
public ArrayList<File> getFiles() {
return files;
}
public void setFiles(ArrayList<File> files) {
this.files = files;
}
public int getUploadsAvailable() {
return uploadsAvailable;
}
public void setUploadsAvailable(int uploadsAvailable) {
this.uploadsAvailable = uploadsAvailable;
}
public boolean isAutoUpload() {
return autoUpload;
}
public void setAutoUpload(boolean autoUpload) {
this.autoUpload = autoUpload;
}
public boolean isUseFlash() {
return useFlash;
}
public void setUseFlash(boolean useFlash) {
this.useFlash = useFlash;
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
}
package backingBeans;
public class File {
private String Name;
private String mime;
private long length;
private byte[] data;
public byte[] getData() {
return data;
}
public void setData(byte[] data) {
this.data = data;
}
public String getName() {
return Name;
}
public void setName(String name) {
Name = name;
int extDot = name.lastIndexOf('.');
if(extDot > 0){
String extension = name.substring(extDot +1);
if("bmp".equals(extension)){
mime="image/bmp";
} else if("jpg".equals(extension)){
mime="image/jpeg";
} else if("gif".equals(extension)){
mime="image/gif";
} else if("png".equals(extension)){
mime="image/png";
} else if("image/jpeg".equals(extension)){
mime="image/jpeg";
} else {
mime = "image/unknown";
}
}
}
public long getLength() {
return length;
}
public void setLength(long length) {
this.length = length;
}
public String getMime(){
return mime;
}
}
