fll.web.UploadProcessor.java Source code

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Here is the source code for fll.web.UploadProcessor.java

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/*
 * Copyright (c) 2000-2002 INSciTE.  All rights reserved
 * INSciTE is on the web at: http://www.hightechkids.org
 * This code is released under GPL; see LICENSE.txt for details.
 */
package fll.web;

import java.util.Iterator;
import java.util.List;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileItemFactory;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

/**
 * Process uploads from JSP pages.
 */
public final class UploadProcessor {

    private UploadProcessor() {
        // no instances
    }

    /**
     * Processes <code>request</code> as a file upload and puts the results back
     * in the <code>request</code> object. Each parameter that is a file upload
     * has a value of type {@link FileItem}. Other parameters have values of type
     * {@link String}.
     * 
     * @param request
     */
    public static void processUpload(final HttpServletRequest request) throws FileUploadException {
        // Parse the request
        final List<?> items = UPLOAD.parseRequest(request);
        final Iterator<?> iter = items.iterator();
        while (iter.hasNext()) {
            final FileItem item = (FileItem) iter.next();
            if (item.isFormField()) {
                request.setAttribute(item.getFieldName(), item.getString());
            } else {
                request.setAttribute(item.getFieldName(), item);
            }
        }
    }

    /**
     * Create a factory for disk-based file items.
     */
    private static final FileItemFactory FACTORY = new DiskFileItemFactory();

    /**
     * Create a new file upload handler.
     */
    private static final ServletFileUpload UPLOAD = new ServletFileUpload(FACTORY);

}