org.onecmdb.ui.gwt.desktop.server.servlet.QueryServiceServlet.java Source code

Introduction

Here is the source code for org.onecmdb.ui.gwt.desktop.server.servlet.QueryServiceServlet.java

Source

/*
 * Lokomo OneCMDB - An Open Source Software for Configuration
 * Management of Datacenter Resources
 *
 * Copyright (C) 2006 Lokomo Systems AB
 *
 * This program 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 2 of the License, or (at
 * your option) any later version.
 *
 * This program 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 this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 * 
 * Lokomo Systems AB can be contacted via e-mail: info@lokomo.com or via
 * paper mail: Lokomo Systems AB, Svrdvgen 27, SE-182 33
 * Danderyd, Sweden.
 *
 */
package org.onecmdb.ui.gwt.desktop.server.servlet;

import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.Enumeration;
import java.util.Properties;

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

import org.apache.commons.fileupload.FileItem;
import org.onecmdb.ui.gwt.desktop.client.service.content.Config;
import org.onecmdb.ui.gwt.desktop.server.command.ExportQueryCommand;
import org.onecmdb.ui.gwt.desktop.server.command.QueryCommand;
import org.onecmdb.ui.gwt.desktop.server.service.content.ContentParserFactory;
import org.onecmdb.ui.gwt.desktop.server.service.model.ConfigurationFactory;
import org.springframework.web.bind.ServletRequestDataBinder;

public class QueryServiceServlet extends HttpServlet {
    private static final int BUF_SIZE = 8192;

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        handleRequest(req, resp);
    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        handleRequest(req, resp);

    }

    protected void handleRequest(HttpServletRequest req, HttpServletResponse resp)
            throws ServletException, IOException {

        QueryCommand cmd = new QueryCommand();
        ServletRequestDataBinder binder = new ServletRequestDataBinder(cmd);
        binder.bind(req);
        Properties prop = new Properties();
        for (Enumeration attrs = req.getParameterNames(); attrs.hasMoreElements();) {
            String key = (String) attrs.nextElement();
            Object value = req.getParameter(key);
            prop.put(key, value);
        }
        cmd.setAttrMap(prop);

        try {
            resp.setContentType(cmd.getContentType());
            //resp.setCharacterEncoding("UTF-8");
            OutputStream out = resp.getOutputStream();
            cmd.transfer(out);
            out.flush();

        } catch (Throwable e) {
            e.printStackTrace();
            resp.setStatus(HttpServletResponse.SC_BAD_REQUEST, "Error:" + e.toString());
        }

    }

    public long transfer(InputStream in, OutputStream out) throws IOException {
        byte b[] = new byte[BUF_SIZE];
        boolean eof = false;
        long totalLength = 0;
        while (!eof) {
            int len = in.read(b, 0, BUF_SIZE);
            if (len < 0) {
                eof = true;
                continue;
            }
            totalLength += len;
            out.write(b, 0, len);
        }
        return (totalLength);
    }
}