Method init

java/org/apache/catalina/filters/ExpiresFilter.java:1434–1461

(FilterConfig filterConfig)

    }

    @Override
    public void init(FilterConfig filterConfig) throws ServletException {
        for (Enumeration<String> names = filterConfig.getInitParameterNames(); names.hasMoreElements();) {
            String name = names.nextElement();
            String value = filterConfig.getInitParameter(name);

            try {
                if (name.startsWith(PARAMETER_EXPIRES_BY_TYPE)) {
                    String contentType =
                            name.substring(PARAMETER_EXPIRES_BY_TYPE.length()).trim().toLowerCase(Locale.ENGLISH);
                    ExpiresConfiguration expiresConfiguration = parseExpiresConfiguration(value);
                    this.expiresConfigurationByContentType.put(contentType, expiresConfiguration);
                } else if (name.equalsIgnoreCase(PARAMETER_EXPIRES_DEFAULT)) {
                    this.defaultExpiresConfiguration = parseExpiresConfiguration(value);
                } else if (name.equalsIgnoreCase(PARAMETER_EXPIRES_EXCLUDED_RESPONSE_STATUS_CODES)) {
                    this.excludedResponseStatusCodes = commaDelimitedListToIntArray(value);
                } else {
                    log.warn(sm.getString("expiresFilter.unknownParameterIgnored", name, value));
                }
            } catch (RuntimeException e) {
                throw new ServletException(sm.getString("expiresFilter.exceptionProcessingParameter", name, value), e);
            }
        }

        if (log.isTraceEnabled()) {
            log.trace(sm.getString("expiresFilter.filterInitialized", this.toString()));
        }
    }

    /**
     * <p>