com.controlj.green.modstat.servlets.ModstatZipServlet.java Source code

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Here is the source code for com.controlj.green.modstat.servlets.ModstatZipServlet.java

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/*
 * Copyright (c) 2011 Automated Logic Corporation
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

package com.controlj.green.modstat.servlets;

import com.controlj.green.addonsupport.AddOnInfo;
import com.controlj.green.modstat.work.RunnableProgress;
import org.apache.commons.io.IOUtils;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;

public class ModstatZipServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        resp.setContentType("application/zip");
        resp.setHeader("Content-disposition", "attachment;filename=modstat.zip");
        try {
            RunnableProgress work = (RunnableProgress) LongRunning.getWork(req);
            if (work == null || work.isAlive() || work.hasError()) {
                throw new Exception("Modstats not gathered yet");
            }

            InputStream in = work.getCache();
            IOUtils.copy(in, resp.getOutputStream());
            resp.getOutputStream().flush();
        } catch (Exception e) {
            resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
            System.err.println("Add-On Error in " + AddOnInfo.getAddOnInfo().getName());
            e.printStackTrace(new PrintWriter(System.err));
        }
    }
}