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coderninja
January 4, 2023
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AEM, debug does not catch SlingServletFilter

  • January 4, 2023
  • 2 replies
  • 1129 views

I am trying to implement a Sling Servlet Filter which aims to be invoked when I upload any .json file into filtertest folder, following the tutorial on https://sling.apache.org/documentation/the-sling-engine/filters.html
Here is the annotations and attributes in it:

@SlingServletFilter(scope= {SlingServletFilterScope.REQUEST},
                            pattern = "/content/dam/filtertest/.*",
                            extensions = {"json"},
                            methods = {"GET", "HEAD", "PUT"})

However, debug does not catch the breakpoint in this class' doFilter method.
What is the problem in here? I could not figure it out.

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    Best answer by Harishv31

    Hi ,

     

    Please check the status of the filter .

    http://localhost:4502/system/console/status-slingfilter

     

    Try checking the servlet filter component in OSGI components console and check if it is enabled and also reload once.

     

     

     

    sample code:

    @9944223
    public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
    throws IOException, ServletException {

    SlingHttpServletRequest request = (SlingHttpServletRequest) req;
    SlingHttpServletResponse response = (SlingHttpServletResponse) res;
    WCMMode mode = WCMMode.fromRequest(request);
    if(WCMMode.EDIT!=mode) {
    String requestURL = request.getRequestURI(); //page url
    String extensions = request.getRequestPathInfo().getExtension(); //page extensions
    if(extensions.contains("json")) {
    //your logic here
    }
    }
    }

    2 replies

    Suraj_Kamdi
    Community Advisor
    Suraj_KamdiCommunity Advisor
    Community Advisor
    January 4, 2023

    @coderninja Just update your Service class with following code

     

    @Component(
        service = Filter.class,
        immediate = true,
        name = "Sample Filter for page request",
        property = {
          Constants.SERVICE_DESCRIPTION + "=Demo to filter incoming requests",
          EngineConstants.SLING_FILTER_SCOPE + "=" + EngineConstants.FILTER_SCOPE_REQUEST,
          Constants.SERVICE_RANKING + ":Integer=-100",
          EngineConstants.SLING_FILTER_REQUEST_PATTERN + "=/content/dam/.*",
        })
    @SlingServletFilter(
        resourceTypes = {
          "dam:Asset"
        })
      H
      Harishv31Accepted solution
      Level 3
      January 5, 2023

      Hi ,

       

      Please check the status of the filter .

      http://localhost:4502/system/console/status-slingfilter

       

      Try checking the servlet filter component in OSGI components console and check if it is enabled and also reload once.

       

       

       

      sample code:

      @9944223
      public void doFilter(ServletRequest req, ServletResponse res, FilterChain chain)
      throws IOException, ServletException {

      SlingHttpServletRequest request = (SlingHttpServletRequest) req;
      SlingHttpServletResponse response = (SlingHttpServletResponse) res;
      WCMMode mode = WCMMode.fromRequest(request);
      if(WCMMode.EDIT!=mode) {
      String requestURL = request.getRequestURI(); //page url
      String extensions = request.getRequestPathInfo().getExtension(); //page extensions
      if(extensions.contains("json")) {
      //your logic here
      }
      }
      }

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