package com.atlassian.refapp.sal;
   
   import com.atlassian.plugin.refimpl.saldeps.ServletContextThreadLocal;
   
   import javax.servlet.Filter;
   import javax.servlet.FilterChain;
   import javax.servlet.FilterConfig;
   import javax.servlet.ServletException;
   import javax.servlet.ServletRequest;
  import javax.servlet.ServletResponse;
  import javax.servlet.http.HttpServletRequest;
  import javax.servlet.http.HttpServletResponse;
  import java.io.IOException;
  
  public class ServletContextThreadLocalFilter implements Filter {
      public void init(FilterConfig filterConfig) throws ServletException {
  
      }
  
      public void doFilter(ServletRequest request, ServletResponse response, FilterChain filterChain) throws IOException, ServletException {
          final HttpServletRequest oldRequest = ServletContextThreadLocal.getRequest();
          final HttpServletResponse oldResponse = ServletContextThreadLocal.getResponse();
          try {
              ServletContextThreadLocal.setRequest((HttpServletRequest) request);
              ServletContextThreadLocal.setResponse((HttpServletResponse) response);
  
              filterChain.doFilter(request, response);
          } finally {
              ServletContextThreadLocal.setRequest(oldRequest);
              ServletContextThreadLocal.setResponse(oldResponse);
          }
      }
  
      public void destroy() {
  
      }
  }