How to use

toCommaSeparatedString

method

in

org.stagemonitor.util.StringUtils

private void setParams(Span span, HttpServletRequest httpServletRequest) {
  // get the parameters after the execution and not on creation, because that could lead to wrong decoded
  // parameters inside the application
  @SuppressWarnings("unchecked") // according to javadoc, its always a Map<String, String[]>
  final Map<String, String[]> parameterMap = httpServletRequest.getParameterMap();
  Map<String, String> params = new HashMap<String, String>();
  for (Map.Entry<String, String[]> entry : parameterMap.entrySet()) {
    params.put(entry.getKey(), StringUtils.toCommaSeparatedString(entry.getValue()));
  }
  Set<Pattern> confidentialParams = new HashSet<Pattern>();
  confidentialParams.addAll(servletPlugin.getRequestParamsConfidential());
  confidentialParams.addAll(tracingPlugin.getConfidentialParameters());
  SpanUtils.setParameters(span, TracingPlugin.getSafeParameterMap(params, confidentialParams));
}

@Test
public void testToCommaSeparatedString() {
  assertThat(StringUtils.toCommaSeparatedString("foo", "bar")).isEqualTo("foo,bar");
  assertThat(StringUtils.toCommaSeparatedString("foo")).isEqualTo("foo");
  assertThat(StringUtils.toCommaSeparatedString()).isEqualTo("");
}