org.geowe.server.upload.FileUploadServlet.java Source code

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Here is the source code for org.geowe.server.upload.FileUploadServlet.java

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/*
 * #%L
 * GeoWE Project
 * %%
 * Copyright (C) 2015 - 2016 GeoWE.org
 * %%
 * This file is part of GeoWE.org.
 * 
 * GeoWE 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.
 * 
 * GeoWE 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 GeoWE.  If not, see <http://www.gnu.org/licenses/>.
 * #L%
 */
package org.geowe.server.upload;

import java.io.IOException;
import java.io.StringWriter;

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

import org.apache.commons.fileupload.FileItemIterator;
import org.apache.commons.fileupload.FileItemStream;
import org.apache.commons.fileupload.FileUploadBase.SizeLimitExceededException;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.IOUtils;
import org.apache.http.HttpStatus;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class FileUploadServlet extends HttpServlet {

    private static final long serialVersionUID = 1296384085403737411L;

    private static final long MAX_FILE_SIZE = 1024 * 1024 * 2; // 2MB
    private static final Logger LOG = LoggerFactory.getLogger(FileUploadServlet.class.getName());

    @Override
    public void doPost(final HttpServletRequest request, final HttpServletResponse response)
            throws ServletException, IOException {
        final ServletFileUpload upload = new ServletFileUpload();
        response.setContentType("text/plain; charset=UTF-8");
        response.setCharacterEncoding("UTF-8");
        request.setCharacterEncoding("UTF-8");
        upload.setFileSizeMax(MAX_FILE_SIZE);
        upload.setSizeMax(MAX_FILE_SIZE);

        try {
            final FileItemIterator iter = upload.getItemIterator(request);
            final StringWriter writer = new StringWriter();
            while (iter.hasNext()) {
                final FileItemStream item = iter.next();
                IOUtils.copy(item.openStream(), writer, "UTF-8");
                final String content = writer.toString();
                response.setStatus(HttpStatus.SC_OK);
                response.getWriter().printf(content);
            }
        } catch (SizeLimitExceededException e) {
            response.setStatus(HttpStatus.SC_REQUEST_TOO_LONG);
            response.getWriter().printf(HttpStatus.SC_REQUEST_TOO_LONG + ":" + e.getMessage());
            LOG.error(e.getMessage());
        } catch (Exception e) {
            response.setStatus(HttpStatus.SC_INTERNAL_SERVER_ERROR);
            response.getWriter().printf(HttpStatus.SC_INTERNAL_SERVER_ERROR + ": ups! something went wrong.");
            LOG.error(e.getMessage());
        }
    }
}