How to upload a file in JSF portlet in Liferay 6.0.6

I'm developing a JSF 2.0 portlet for Liferay 6.0.6 (Plugins SDK 6.1) and I need file upload functionality. I tried the following different solutions without success:

Tomahawk
overriding ActionRequest processing
bridge:inputFile component

Any suggestion how to do it is welcomed, also hacks or using other technologies than JSF.

Solution

Why not use a standard HTML form so:

<form action="your_action_goes_here" method="post" enctype="multipart/form-data">
    <input type="file" name="file" id="file" />
    <input type="submit" name="submit" value="Submit" />
</form>

Then in your Java code override the processAction method (usually in a class that extends GenericPortlet or maybe Liferay's MVCPortlet or JSPPortlet (for 5.2.3)) and then you can get the file itself by:

public void processAction(ActionRequest actionRequest, ActionResponse actionResponse) {
    UploadPortletRequest uploadRequest = PortalUtil.getUploadPortletRequest(actionRequest);
    File file = (File) uploadRequest.getFile("file");
    // Do something with your file here
}

Job done! :) This is only skeleton code, and there will be exception handling you need to do but your IDE will help with that.

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