extract_http_headers.yml

# # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# Action for extracting header fields of a HTTP requests
# processed by the Java Servlet API. If multiple headers
# with the specified name exists, only the first one
# will be returned.
#
# field : String
#    The name of the header field to extract
#
# return
#    The value of the header field with the given name
inspectit:
  instrumentation:
    actions:
      a_extract_http_header:
        imports:
          - javax.servlet.http.HttpServletRequest
        input:
          _arg0: Object
          field: String
        value-body: |
          if (_arg0 instanceof HttpServletRequest) {
              HttpServletRequest hsr = (HttpServletRequest) _arg0;
              String header = hsr.getHeader(field);
              if (header != null) {
                  return header;
              }
          }
          return "<not available>";