AEM, debug does not catch SlingServletFilter

[coderninja]

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.

[Suraj_Kamdi]

@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"
    })

[Harishv31 · Accepted solution]

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:

@Override
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
}
}
}