de.micromata.genome.gwiki.web.StaticFileServlet.java Source code

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Here is the source code for de.micromata.genome.gwiki.web.StaticFileServlet.java

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//
// Copyright (C) 2010-2016 Roger Rene Kommer & Micromata GmbH
//
// Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
//
// 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 de.micromata.genome.gwiki.web;

import java.io.IOException;
import java.io.InputStream;
import java.util.Date;

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

import org.apache.commons.io.IOUtils;
import org.apache.commons.lang3.StringUtils;

import de.micromata.genome.gdbfs.MimeUtils;
import de.micromata.genome.util.types.TimeInMillis;

/**
 * 
 * @author Roger Rene Kommer (r.kommer@micromata.de)
 * @deprecated the static content will also be provided by the GWikiServlet.
 * 
 */
@Deprecated
public class StaticFileServlet extends HttpServlet {

    private static final long serialVersionUID = -3926571626495438910L;

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        String uri = req.getPathInfo();
        String servletp = req.getServletPath();
        String respath = servletp + uri;
        if (uri == null) {
            resp.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }

        InputStream is = getServletContext().getResourceAsStream(respath);
        if (is == null) {
            resp.sendError(HttpServletResponse.SC_NOT_FOUND);
            return;
        }
        long nt = new Date().getTime() + TimeInMillis.DAY;
        String mime = MimeUtils.getMimeTypeFromFile(respath);
        if (StringUtils.equals(mime, "application/x-shockwave-flash")) {
            resp.setHeader("Cache-Control", "cache, must-revalidate");
            resp.setHeader("Pragma", "public");
        }
        resp.setDateHeader("Expires", nt);
        resp.setHeader("Cache-Control", "max-age=86400, public");
        if (mime != null) {
            resp.setContentType(mime);
        }

        byte[] data = IOUtils.toByteArray(is);
        IOUtils.closeQuietly(is);
        resp.setContentLength(data.length);
        IOUtils.write(data, resp.getOutputStream());
    }
}