protected LinkedHashMap<RequestKey, Collection<ConfigAttribute>> buildMap() { LinkedHashMap<RequestKey, Collection<ConfigAttribute>> map = new LinkedHashMap<RequestKey, Collection<ConfigAttribute>>(); for (Map.Entry<String, String> entry : _definition.entrySet()) { String value = entry.getValue(); if (value == null) { throw new IllegalArgumentException("The rule for URL '" + value + "' cannot be null"); } value = value.trim(); if (!"ANY_CHANNEL".equals(value) && !"REQUIRES_SECURE_CHANNEL".equals(value) && !"REQUIRES_INSECURE_CHANNEL".equals(value)) { throw new IllegalArgumentException( "The rule for URL '" + value + "' must be one of REQUIRES_SECURE_CHANNEL, REQUIRES_INSECURE_CHANNEL, or ANY_CHANNEL"); } map.put(new RequestKey(entry.getKey()), SecurityConfig.createSingleAttributeList(value)); } return map; }