fileUpload - Works..- Clear all resets name size, leaves dat
Hey Guys,
I have one more question. I have the fileUpload working great now. Thanks to you guys on this site.
fileUpload - Works..- Clear all resets name size but leaves data.
The name and file size are cleared.
The data or picture are left after clear.
Thanks
Phil
=======================
RF Verison
April 25, 2008 snapshot
richfaces-ui-3.2.1.snap.jar
richfaces-impl-3.2.1-snap.jar
richfaces-api-3.2.1-snap.jar
=======================
Bean
=======================
import java.io.IOException;
import java.io.OutputStream;
import java.util.ArrayList;
import java.util.Map;
import javax.faces.context.FacesContext;
import org.richfaces.event.UploadEvent;
import org.richfaces.model.UploadItem;
/**
* @author Ilya Shaikovsky
*
*/
public class FileUploadBean2{
private ArrayList files = new ArrayList();
private int uploadsAvailable = 5;
private boolean autoUpload = false;
public int getSize() {
if (getFiles().size()>0){
return getFiles().size();
}else
{
return 0;
}
}
public FileUploadBean2() {
}
public void paint(OutputStream stream, Object object) throws IOException {
// stream.write(getFiles().get((Integer)object).getData());
stream.write(((File)getFiles().get(((Integer)object).intValue())).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();
File file = new File();
setUploadsAvailable(5);
// Map session = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
// FileUploadBean2 fileUploadBean2 = (FileUploadBean2)session.get("fileUploadBean2");
System.out.println(" " );
System.out.println(" ???????? Clear out session var : fileUploadBean2 ");
System.out.println(" " );
// Map<String, Object> sessionMap = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
// FileUploadBean2 fileUploadBean2 = (FileUploadBean2) sessionMap.get("fileUploadBean2"); // Retrieves the session scoped bean.
// sessionMap.remove("fileUploadBean2"); // Removes the session scoped bean.
// sessionMap.put("fileUploadBean2", new FileUploadBean2()); // Recreates the session scoped bean.
// FacesContext.getCurrentInstance().getExternalContext().getSessionMap().get("fileUploadBean2").
// FacesContext.getCurrentInstance().getExternalContext().getSessionMap().remove("fileUploadBean2");
//
// FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put("fileUploadBean2", new FileUploadBean2());
//
// FacesContext.getCurrentInstance().getExternalContext().getSessionMap().remove("FileUploadBean2");
// FacesContext.getCurrentInstance().getExternalContext().getSessionMap().put("FileUploadBean2", new FileUploadBean2());
System.out.println(" " );
System.out.println(" ???????? done method : fileUploadBean2 ");
System.out.println(" " );
return null;
}
public ArrayList getFiles() {
return files;
}
public void setFiles(ArrayList 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;
}
}
======================================
JSP
======================================
<h:panelGrid columns="2" columnClasses="top,top">
<rich:fileUpload fileUploadListener="#{fileUploadBean2.listener}"
maxFilesQuantity="#{fileUploadBean2.uploadsAvailable}"
id="upload"
immediateUpload="#{fileUploadBean2.autoUpload}"
acceptedTypes="jpg, gif, png, bmp">
<a4j:support event="onuploadcomplete" reRender="info" />
</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="#{fileUploadBean2.size==0}" />
<rich:dataGrid columns="1" value="#{fileUploadBean2.files}"
var="file" rowKeyVar="row">
<rich:panel>
<h:panelGrid columns="2">
<a4j:mediaOutput element="img" mimeType="image/jpeg"
createContent="#{fileUploadBean2.paint}" value="#{row}"
style="width:100px; height:100px;" />
<h:panelGrid columns="2">
<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"/>
<a4j:commandButton action="#{fileUploadBean2.clearUploadData}"
reRender="info, upload" value="Clear Uploaded Data"
rendered="#{fileUploadBean2.size>0}" />
</h:panelGroup>
</h:panelGrid>
========================================
faces-config
========================================
<managed-bean>
<managed-bean-name>fileUploadBean2</managed-bean-name>
<managed-bean-class>com.testApp.java.utilFileUpload.FileUploadBean2</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>
======================================
package com.testApp.java.utilFileUpload;
public class File {
private String Name;
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;
}
public long getLength() {
return length;
}
public void setLength(long length) {
this.length = length;
}
}
