question: private List < QoSRule > createQoSRules ( JsonObject qosSettings ) { List < QoSRule > rules = new ArrayList < > ( ) ; if ( qosSettings . containsKey ( JSON_FIELD_RULES ) ) { JsonObject jsonRules = qosSettings . getJsonObject ( JSON_FIELD_RULES ) ; for ( String urlPatternRegExp : jsonRules . fieldNames ( ) ) { log . debug ( "Creating a new QoS rule object for URL pattern: " + urlPatternRegExp ) ; JsonObject jsonRule = jsonRules . getJsonObject ( urlPatternRegExp ) ; Pattern urlPattern = Pattern . compile ( urlPatternRegExp ) ; QoSRule rule = new QoSRule ( urlPattern ) ; boolean addRule = false ; if ( jsonRule . containsKey ( "reject" ) ) { addRule = true ; rule . setReject ( jsonRule . getDouble ( "reject" ) ) ; } if ( jsonRule . containsKey ( "warn" ) ) { addRule = true ; rule . setWarn ( jsonRule . getDouble ( "warn" ) ) ; } if ( addRule ) { rules . add ( rule ) ; } else { log . warn ( "No or unknown QoS action defined for rule {}. This rule will not be loaded!" , urlPatternRegExp ) ; } } } return rules ; }
target:  Creates the QoS rule objects from the given JsonObject and returns them in a list.