/*
    * Licensed under the GPL License. You may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    *   https://www.gnu.org/licenses/old-licenses/gpl-2.0.html
    *
    * THIS PACKAGE IS PROVIDED "AS IS" AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
    * WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR
    * PURPOSE.
   */
  package psiprobe.controllers.threads;
  
  import java.net.URLClassLoader;
  import java.util.Arrays;
  
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  import org.springframework.beans.factory.annotation.Value;
  import org.springframework.stereotype.Controller;
  import org.springframework.web.bind.ServletRequestUtils;
  import org.springframework.web.bind.annotation.RequestMapping;
  import org.springframework.web.servlet.ModelAndView;
  import org.springframework.web.servlet.mvc.ParameterizableViewController;
  
  import psiprobe.Utils;
  
  /**
   * The Class GetClassLoaderUrlsController.
   */
  @Controller
  public class GetClassLoaderUrlsController extends ParameterizableViewController {
  
    /** The Constant logger. */
    private static final Logger logger = LoggerFactory.getLogger(GetClassLoaderUrlsController.class);
  
    @RequestMapping(path = "/cldetails.ajax")
    @Override
    public ModelAndView handleRequest(HttpServletRequest request, HttpServletResponse response)
        throws Exception {
      return super.handleRequest(request, response);
    }
  
    @Override
    protected ModelAndView handleRequestInternal(HttpServletRequest request,
        HttpServletResponse response) throws Exception {
  
      String threadName = ServletRequestUtils.getStringParameter(request, "thread");
  
      Thread thread = Utils.getThreadByName(threadName);
  
      if (thread != null) {
        ClassLoader cl = thread.getContextClassLoader();
        if (cl instanceof URLClassLoader) {
          try {
            request.setAttribute("urls", Arrays.asList(((URLClassLoader) cl).getURLs()));
          } catch (Exception e) {
            logger.error("There was an exception querying classloader for thread '{}'", threadName,
                e);
          }
        }
      }
  
      return new ModelAndView(getViewName());
    }
  
    @Value("ajax/classLoaderDetails")
    @Override
    public void setViewName(String viewName) {
      super.setViewName(viewName);
    }
  
  }