org.sakaiproject.imagegallery.web.MultiFileUploaderController.java Source code

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Here is the source code for org.sakaiproject.imagegallery.web.MultiFileUploaderController.java

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/**********************************************************************************
*
* $Id$
*
***********************************************************************************
*
* Copyright (c) 2008 The Regents of the University of California
*
* Licensed under the Educational Community License, Version 1.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*      http://www.opensource.org/licenses/ecl1.php
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
**********************************************************************************/

package org.sakaiproject.imagegallery.web;

import java.io.PrintWriter;
import java.util.Iterator;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.sakaiproject.imagegallery.domain.Image;
import org.sakaiproject.imagegallery.service.ImageGalleryService;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
import org.springframework.web.servlet.view.RedirectView;

/**
 *
 */
public class MultiFileUploaderController extends MultiActionController {
    private static final Log log = LogFactory.getLog(MultiFileUploaderController.class);
    private ImageGalleryService imageGalleryService;

    public void multiFileUpload(HttpServletRequest request, HttpServletResponse response) throws Exception {
        if (log.isInfoEnabled())
            log.info("req contextPath=" + request.getContextPath() + ", pathInfo=" + request.getPathInfo()
                    + ", query=" + request.getQueryString() + ", URI=" + request.getRequestURI() + ", URL="
                    + request.getRequestURL() + ", servlet=" + request.getServletPath());
        if (request instanceof MultipartHttpServletRequest) {
            String newImageId = storeNewImage((MultipartHttpServletRequest) request);
            response.setContentType("text/plain");
            PrintWriter responseWriter = response.getWriter();
            responseWriter.print(newImageId);
            responseWriter.close();
        }
    }

    public ModelAndView singleFileUpload(HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        if (log.isInfoEnabled())
            log.info("req contextPath=" + request.getContextPath() + ", pathInfo=" + request.getPathInfo()
                    + ", query=" + request.getQueryString() + ", URI=" + request.getRequestURI() + ", URL="
                    + request.getRequestURL() + ", servlet=" + request.getServletPath());
        if (request instanceof MultipartHttpServletRequest) {
            return new ModelAndView(new RedirectView(
                    "/site/AddInformationToImages?imageIds=" + storeNewImage((MultipartHttpServletRequest) request),
                    true));
        }

        return null;
    }

    private String storeNewImage(MultipartHttpServletRequest multipartRequest) {
        // Don't worry about the name of the input element of the form,
        // just grab the first (and only) file in the request.
        Iterator<String> fileInputNames = multipartRequest.getFileNames();
        if (fileInputNames.hasNext()) {
            MultipartFile file = multipartRequest.getFile(fileInputNames.next());
            Image image = imageGalleryService.addImage(file);
            return image.getId();
        } else {
            return null;
        }
    }

    public void setImageGalleryService(ImageGalleryService imageGalleryService) {
        this.imageGalleryService = imageGalleryService;
    }

}