package com.atlassian.plugin.refimpl.webresource;
   
   import com.atlassian.plugin.refimpl.ContainerManager;
   import com.atlassian.plugin.webresource.WebResourceIntegration;
   
   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 java.io.IOException;
  
  public class RequestCacheCleaner implements Filter {
      private final WebResourceIntegration webResourceIntegration;
  
      public RequestCacheCleaner() {
          this.webResourceIntegration = ContainerManager.getInstance().getWebResourceIntegration();
      }
  
      public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
              throws IOException, ServletException {
          try {
              chain.doFilter(request, response);
          } finally {
              webResourceIntegration.getRequestCache().clear();
          }
      }
  
      public void init(FilterConfig arg0) throws ServletException {
      }
  
      public void destroy() {
      }
  }