package org.exoplatform.services.handler;
   
   import java.io.PrintWriter;
   
   import javax.servlet.http.HttpServletRequest;
   import javax.servlet.http.HttpServletResponse;
   
   import org.exoplatform.services.seo.SEOService;
   import org.exoplatform.services.wcm.utils.WCMCoreUtils;
  import org.exoplatform.web.ControllerContext;
  import org.exoplatform.web.WebAppController;
  import org.exoplatform.web.WebRequestHandler;
  import org.exoplatform.web.controller.QualifiedName;
  
  public class RobotsHandler extends WebRequestHandler {
  
    private String portalName = null;
      public String getHandlerName()
      {
        return "robots";
      }
      @Override
      public boolean execute(ControllerContext context) throws Exception
      {
         portalName = context.getParameter(QualifiedName.create("gtn", "sitename"));
         execute(context.getController(), context.getRequest(), context.getResponse());
         return true;
      }
      public void execute(WebAppController controller, HttpServletRequest req, HttpServletResponse res) throws Exception  {
      String robotsContent = "";
        if(portalName != null && portalName.length() > 0) {
          SEOService seoService = WCMCoreUtils.getService(SEOService.class);
          robotsContent = seoService.getRobots(portalName);
          res.setContentType("text/plain");
          PrintWriter out = res.getWriter();
          out.println(robotsContent);
        }
      }
  
      public boolean getRequiresLifeCycle() {
        return true;
      }
  
  }