Problems with rich:fileUpload
Hy, i'm having troubles with the rich:fileUpload component. The problem is that the UploadEvent event object is not getting the filedata (getData() method). To simplify the understanding i'll put my codes here.
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@taglib prefix="f" uri="http://java.sun.com/jsf/core"%>
<%@taglib prefix="h" uri="http://java.sun.com/jsf/html"%>
<%@ taglib uri="http://richfaces.org/a4j" prefix="a4j"%>
<%@ taglib uri="http://richfaces.org/rich" prefix="rich"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<%--
This file is an entry point for JavaServer Faces application.
--%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>JSP Page</title>
</head>
<body>
<f:view>
<style>
.top {
vertical-align: top;
}
.info {
height: 202px;
overflow: auto;
}
</style>
<h:form>
<h:panelGrid columns="2" columnClasses="top,top">
<rich:fileUpload uploadData="#{fileUploadBean.filesUp}" fileUploadListener="#{fileUploadBean.listener}"
maxFilesQuantity="#{fileUploadBean.uploadsAvailable}"
id="upload" addControlLabel="Adicionar" cancelEntryControlLabel="Cancelar"
clearAllControlLabel="Limpar Todos" clearControlLabel="Limpar"
uploadControlLabel="Enviar" stopEntryControlLabel="Parar"
stopControlLabel="Parar" doneLabel="Terminado" reRender="table"
immediateUpload="#{fileUploadBean.autoUpload}"
acceptedTypes="jpg, gif, png, bmp">
<f:facet name="label">
<h:outputText value="{_KB}KB de {KB}KB enviado(s) --- {mm}:{ss}" />
</f:facet>
<a4j:support event="onuploadcomplete" reRender="info, log" />
</rich:fileUpload>
<h:panelGroup id="info">
<rich:panel bodyClass="info">
<f:facet name="header">
<h:outputText value="Informações dos arquivos enviados" />
</f:facet>
<h:outputText value="Sem arquivos enviados até o momento"
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="false">
<f:param value="#{fileUploadBean.timeStamp}" name="time"/>
</a4j:mediaOutput>
<h:panelGrid columns="2">
<h:outputText value="Nome do Arquivo:" />
<h:outputText value="#{file.name}" />
<h:outputText value="Tamanho do arquivo(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="Limpar dados enviados"
rendered="#{fileUploadBean.size>0}" />
</h:panelGroup>
<br /><br /><h:outputText id="log" value="#{fileUploadBean.log}" />
</h:panelGrid>
</h:form>
</f:view>
</body>
</html>
public synchronized void listener(UploadEvent event) throws Exception{
UploadItem item = event.getUploadItem();
ExternalContext con = FacesContext.getCurrentInstance().getExternalContext();
ServletContext sCon = (ServletContext) con.getContext();
TheFile file = new TheFile();
try{
File theFile = event.getUploadItem().getFile();
File creationFile = new File((String) sCon.getRealPath("/")+"upload/", theFile.getName());
if(!creationFile.exists()){
FileOutputStream fileOutStream = new FileOutputStream(creationFile);
fileOutStream.write(event.getUploadItem().getData());
fileOutStream.flush();
fileOutStream.close();
}
file.setLength(theFile.length());
file.setName(item.getFileName());
file.setData(item.getData());
getFiles().add(file);
uploadsAvailable--;
} catch(Exception ex){
setLog("Deu erro: "+ex+" total de arquivos enviados: "+filesUp.size());
}
}
The problem is, when my code runs the line:
fileOutStream.write(event.getUploadItem().getData());
The systems returns a NullPointerException. The getData() method do is returning null, but the others methods which refers to the uploaded file is working (getting the correct data). What can it be?!
ps.:i've utilized the live example implementation (http://livedemo.exadel.com/richfaces-demo/richfaces/fileUpload.jsf;jsessionid=9037A2E803B98B2B21D33E7A798A2D9E?c=fileUpload), this is just a test class. I've observed that the on line "reRender="table"" on the rich:fileUpload component at the example apear an error line saying: "Atribute reRender invalid for tag fileUpload acording to TLD".
