FileUpload: Adding an extra parameter to fileUploadListener

[frer]

Hi,

I'm encountering an issue. My application contains N languages (I don't know in advance and it can change dynamically). In my administration I therefore want a form that allows me to enter an input field for each locale. I was able to get this working for h:inputText for example but not for a rich:fileUpload.

Here is the code for the h:inputText (that works)

<a4j:repeat id="item-itemName-locale-repeat" var="localeContext" value="#{localizationContext.locales}">
 <div class="attribute" id="item-itemName">
 <h:outputLabel id="item-itemName-label" class="label-locale" for="item-itemName-value" value="#{localeContext.getDisplayName(locale)}" />
 <h:inputText value="#{formAction.entity.getLocalization(localeContext).itemName}" id="item-itemName-value" required="false">
 <rich:ajaxValidator event="onblur"/>
 </h:inputText>
 </h:outputPanel>
 </div>
 <rich:message for="item-itemName-value" styleClass="message" infoClass="success" errorClass="error" warnClass="warning"/>
 </a4j:repeat>

As you can see, I iterate on the locales and have an input text for each of them. The method being set is the formAction.entity.getLocalization(localeContext).itemName. This works fine.

But how can I do this with the fileUpload knowing I cannot pass any parameters to the fileUploadListener (or at least I don't know how)?

Here is what I would have done:

 <a4j:repeat id="productPriority-priorityCodeImage-locale-repeat" var="localeContext" value="#{localizationContext.locales}">
 <div class="attribute" id="productPriority-priorityCodeImage">
 <h:outputLabel id="productPriority-priorityCodeImage-label" class="label-locale" for="productPriority-priorityCodeImage-value" value="#{localeContext.getDisplayName(locale)}" />
 <s:div id="productPriority-priorityCodeImage-value-container">
 <rich:fileUpload id="productPriority-priorityCodeImage-value-upload"
 fileUploadListener="#{formAction.uploadPriorityCodeImage(event, locale)}"
 maxFilesQuantity="1"
 immediateUpload="true"
 immediate="true"
 acceptedTypes="jpg, gif, png, bmp"
 addControlLabel="#{messages['org.mdarad.framework.resources.list.add']} PriorityCodeImage"
 cancelEntryControlLabel="#{messages['org.mdarad.framework.resources.list.remove']} PriorityCodeImage"
 rendered="#{formAction.entity.getLocalization(locale).priorityCodeImage == null}">
 <a4j:support event="onuploadcomplete" ajaxSingle="true" reRender="productPriority-priorityCodeImage-value-container" />
 </rich:fileUpload>
 <h:panelGrid columns="2">
 <s:graphicImage id="productPriority-priorityCodeImage-value-preview" value="#{formAction.entity.getLocalization(locale).priorityCodeImage.content}" style="width:48px"/>
 <a4j:commandLink id="productPriority-priorityCodeImage-value-remove"
 action="#{formAction.clearPriorityCodeImage(locale)}"
 value="#{messages['org.mdarad.framework.resources.list.remove']} PriorityCodeImage"
 rendered="#{formAction.entity.getLocalization(locale).priorityCodeImage != null}"
 reRender="productPriority-priorityCodeImage-value-container"/>
 </h:panelGrid>
 </s:div>

 </div>
 <rich:message for="productPriority-priorityCodeImage-value" styleClass="message" infoClass="success" errorClass="error" warnClass="warning"/>
 </a4j:repeat>

and here is my backing beam method called by the fileUploadListener:

 public void uploadPriorityCodeImage(UploadEvent event, Locale locale) throws Exception {
 UploadItem item = event.getUploadItem();

 //Get data from temporary created file
 File file = item.getFile();
 byte[] data = new byte[(int) file.length()];
 FileInputStream fileInputStream = new FileInputStream(file);
 fileInputStream.read(data);

 //Now update object
 org.dataisland.primitives.datatype.Blob blob = new org.dataisland.primitives.datatype.Blob();
 ((ProductPriorityLocalization) getEntity().getLocalization(locale)).setPriorityCodeImage(blob);
 ((ProductPriorityLocalization) getEntity().getLocalization(locale)).getPriorityCodeImage().setContent(data);
 ((ProductPriorityLocalization) getEntity().getLocalization(locale)).getPriorityCodeImage().setContentType(item.getContentType());
 ((ProductPriorityLocalization) getEntity().getLocalization(locale)).getPriorityCodeImage().setContentFileName(item.getFileName());
 }

Unfortunately, I get a NPE when entering the method because the event seems to be null.... is there any way I can pass an extra parameter to the method (my locale)? Otherwise what other options do I have?

THank you for your help,

Francois