uk.ac.bbsrc.tgac.miso.spring.ajax.multipart.AjaxMultipartResolver.java Source code

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Here is the source code for uk.ac.bbsrc.tgac.miso.spring.ajax.multipart.AjaxMultipartResolver.java

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/*
 * Copyright (c) 2012. The Genome Analysis Centre, Norwich, UK
 * MISO project contacts: Robert Davey @ TGAC
 * *********************************************************************
 *
 * This file is part of MISO.
 *
 * MISO is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * MISO is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MISO.  If not, see <http://www.gnu.org/licenses/>.
 *
 * *********************************************************************
 */

package uk.ac.bbsrc.tgac.miso.spring.ajax.multipart;

import java.util.HashMap;
import java.util.List;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;

import org.apache.commons.fileupload.FileUpload;
import org.apache.commons.fileupload.FileUploadBase;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.springframework.web.multipart.MaxUploadSizeExceededException;
import org.springframework.web.multipart.MultipartException;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.multipart.commons.CommonsMultipartResolver;
import org.springframework.web.multipart.support.DefaultMultipartHttpServletRequest;

import net.sourceforge.fluxion.ajax.beans.util.FileUploadListener;

/**
 * uk.ac.bbsrc.tgac.miso.spring.ajax.multipart
 * <p/>
 * Info
 * 
 * @author Rob Davey
 * @since 0.0.2
 */
public class AjaxMultipartResolver extends CommonsMultipartResolver {
    private FileUploadListener fileUploadListener;

    @Override
    public MultipartHttpServletRequest resolveMultipart(HttpServletRequest request) throws MultipartException {
        String encoding = determineEncoding(request);
        FileUpload fileUpload = prepareFileUpload(encoding);
        if (fileUploadListener != null) {
            fileUpload.setProgressListener(fileUploadListener);
            request.getSession(false).setAttribute("upload_listener", fileUploadListener);
        }
        try {
            List fileItems = ((ServletFileUpload) fileUpload).parseRequest(request);
            MultipartParsingResult parsingResult = parseFileItems(fileItems, encoding);
            Map<String, String> multipartContentTypes = new HashMap<String, String>();
            for (List<MultipartFile> files : parsingResult.getMultipartFiles().values()) {
                for (MultipartFile f : files) {
                    multipartContentTypes.put(f.getName(), f.getContentType());
                }
            }
            return new DefaultMultipartHttpServletRequest(request, parsingResult.getMultipartFiles(),
                    parsingResult.getMultipartParameters(), multipartContentTypes);
        } catch (FileUploadBase.SizeLimitExceededException ex) {
            throw new MaxUploadSizeExceededException(fileUpload.getSizeMax(), ex);
        } catch (FileUploadException ex) {
            throw new MultipartException("Could not parse multipart servlet request", ex);
        }
    }

    public FileUploadListener getFileUploadListener() {
        return fileUploadListener;
    }

    public void setFileUploadListener(FileUploadListener fileUploadListener) {
        this.fileUploadListener = fileUploadListener;
    }
}