/*

  * Copyright (c) 2003-2011, Simon Brown

  * All rights reserved.

  *

  * Redistribution and use in source and binary forms, with or without

  * modification, are permitted provided that the following conditions are met:

  *

  *   - Redistributions of source code must retain the above copyright

  *     notice, this list of conditions and the following disclaimer.

  *

  *   - Redistributions in binary form must reproduce the above copyright

  *     notice, this list of conditions and the following disclaimer in

  *     the documentation and/or other materials provided with the

  *     distribution.

  *

  *   - Neither the name of Pebble nor the names of its contributors may

  *     be used to endorse or promote products derived from this software

  *     without specific prior written permission.

  *

  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"

  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE

  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR

  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF

  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS

  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN

  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE

  * POSSIBILITY OF SUCH DAMAGE.

  */

 package net.sourceforge.pebble.web.controller;

 import net.sourceforge.pebble.webservice.BloggerAPIHandler;

 import net.sourceforge.pebble.webservice.MetaWeblogAPIHandler;

 import net.sourceforge.pebble.webservice.PebbleAPIHandler;

 import net.sourceforge.pebble.webservice.SearchAPIHandler;

 import org.apache.xmlrpc.XmlRpcServer;

 import org.springframework.context.ApplicationContext;

 import org.springframework.web.context.support.WebApplicationContextUtils;

 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.OutputStream;

 /**

  * Single entry point for all XML-RPC requests (e.g. Blogger API).

  *

  * @author    Simon Brown

  */

 public class XmlRpcController extends HttpServlet {

   /**

    * Initialises this instance.

    */

   public void init() {

   }

   /**

    * Processes the request - this is delegated to from doGet and doPost.

    *

    * @param request   the HttpServletRequest instance

    * @param response   the HttpServletResponse instance

    */

   protected void processRequest(HttpServletRequest request,

                                 HttpServletResponse response)

       throws ServletException, IOException {

     try {

       XmlRpcServer xmlrpc = new XmlRpcServer();

       ApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext(getServletContext());

       BloggerAPIHandler bloggerApi = (BloggerAPIHandler)ctx.getBean("bloggerApiHandler");

       xmlrpc.addHandler("blogger", bloggerApi);

       MetaWeblogAPIHandler metaweblogApi = (MetaWeblogAPIHandler)ctx.getBean("metaweblogApiHandler");

       xmlrpc.addHandler("metaWeblog", metaweblogApi);

       PebbleAPIHandler pebbleApi = (PebbleAPIHandler)ctx.getBean("pebbleApiHandler");

       xmlrpc.addHandler("pebble", pebbleApi);

       SearchAPIHandler searchApi = (SearchAPIHandler)ctx.getBean("searchApiHandler");

       xmlrpc.addHandler("search", searchApi);

       byte[] result = xmlrpc.execute(request.getInputStream());

       response.setContentType("text/xml; charset=UTF-8");

       response.setContentLength(result.length);

       OutputStream out = response.getOutputStream();

       out.write(result);

       out.flush();

     } catch (Exception e) {

       e.printStackTrace();

       throw new ServletException(e);

     }

   }

   /**

    * A default implementation of doGet that delegates to the processRequest method.

    *

    * @param req   the HttpServletRequest instance

    * @param res   the HttpServletResponse instance

    */

   protected void doGet(HttpServletRequest req, HttpServletResponse res)

       throws ServletException, IOException {

     processRequest(req, res);

   }

   /**

    * A default implementation of doPost that delegates to the processRequest method.

    *

    * @param req   the HttpServletRequest instance

    * @param res   the HttpServletResponse instance

    */

   protected void doPost(HttpServletRequest req, HttpServletResponse res)

       throws ServletException, IOException {

     processRequest(req, res);

   }

 }