// get parameters
String folderId = getStringParameter(request, Constants.PARAM_FOLDER_ID);
String filter = getStringParameter(request, Constants.PARAM_FILTER);
String orderBy = getStringParameter(request, Constants.PARAM_ORDER_BY);
Boolean includeAllowableActions = getBooleanParameter(request, Constants.PARAM_ALLOWABLE_ACTIONS);
IncludeRelationships includeRelationships = getEnumParameter(request, Constants.PARAM_RELATIONSHIPS,
IncludeRelationships.class);
String renditionFilter = getStringParameter(request, Constants.PARAM_RENDITION_FILTER);
BigInteger maxItems = getBigIntegerParameter(request, Constants.PARAM_MAX_ITEMS);
BigInteger skipCount = getBigIntegerParameter(request, Constants.PARAM_SKIP_COUNT);