public void beforePhase()

in tobago-core/src/main/java/org/apache/myfaces/tobago/util/DebugPhaseListener.java [101:157]
50 lines of code
16 McCabe index (conditional complexity)

  public void beforePhase(final PhaseEvent phaseEvent) {
    final FacesContext facesContext = phaseEvent.getFacesContext();
    final boolean productionMode = facesContext.isProjectStage(ProjectStage.Production);
    if (facesContext.getResponseComplete()) {
      LOG.info("Response is completed.");
      return;
    }
    if (productionMode) {
      LOG.warn("DebugPhaseListener disabled, because the project stage is 'production'.");
      return;
    }

    if (LOG.isInfoEnabled()) {
      final PhaseId phaseId = phaseEvent.getPhaseId();
      if (LOG.isDebugEnabled() || phaseId.getOrdinal() == 1) {

        final ExternalContext externalContext = facesContext.getExternalContext();

        if (LOG.isTraceEnabled() && PhaseId.RESTORE_VIEW == phaseId) {
          // this is before restoreView

          final Object request = externalContext.getRequest();
          if (request instanceof HttpServletRequest) {
            final HttpServletRequest servletRequest = (HttpServletRequest) request;
            LOG.trace("RequestURI = " + servletRequest.getRequestURI());
          }
          final Map headerMap = externalContext.getRequestHeaderMap();
          for (final Object key : headerMap.keySet()) {
            LOG.trace("Header : '" + key + "' = '" + headerMap.get(key) + "'");
          }
          final Map parameterMap = externalContext.getRequestParameterMap();
          for (final Object key : parameterMap.keySet()) {
            LOG.trace("Param  : '" + key + "' = '" + parameterMap.get(key) + "'");
          }
        }

        final Long start = System.currentTimeMillis();
        final Map<String, Object> map = externalContext.getRequestMap();
        map.put(KEY + phaseId.getOrdinal() + "S", start);

        if (LOG.isDebugEnabled()) {
          Long end = null;
          int ordinal = phaseId.getOrdinal();
          while (end == null && ordinal > 0) {
            end = (Long) map.get(KEY + --ordinal + "E");
          }
          if (end != null) {
            LOG.debug("Time between phases " + ordinal + " and " + phaseId.getOrdinal() + ": "
                + (start - end) + " milliseconds");
          }
        }
        if (LOG.isTraceEnabled()) {
          LOG.trace("Before Phase :" + phaseId + " Time=" + start);
        }
      }
    }
  }