CEPプロトンの使用時間間隔内に受け取ったイベントについて、2番目以降のイベントのIDが最初のイベントに入るarray型の属性に含まれているかどうかを確認したいと思います。最初のイベントに、整数の配列(10,20,30)であるgroupという属性が設定されているとします。次のイベントには、id、ex 20、25などが付きます。私は、それらのイベントのIDが最初のイベントに含まれる属性グループに含まれているかどうかをチェックしたいと思います。そのために 私が確認しEPA内の配列条件CEP PROTON
Error Error in EPA: expression error of undefined myepa
をクリックしたときに私はエラーを取得していますしかし、私は私が間違って何をやっているか?EPA
ArrayContains(ArrayGet(myevent.group,0),ArrayGet(myevent.id,ArraySize(myevent.id)-1))
で条件を作成しましたか ArrayGet
を使用して属性配列にアクセスできませんか?またはArrayContains
はArrayGet
の結果では動作しない可能性がありますか?
JSON
{"epn":{"events":[{"name":"GupsyContextUpdate","createdDate":"Thu Sep 29 2016","attributes":[{"name":"entityId","type":"String","dimension":0},{"name":"entityType","type":"String","dimension":0,"description":"The cost of this event occurrence. Negative if this is an opportunity"},{"name":"SF","type":"Integer","dimension":0,"description":"Used in case the this event occur within an interval"},{"name":"occupied","type":"Integer","dimension":"0"},{"name":"framecounter","type":"Integer","dimension":"0"},{"name":"RSSI","type":"String","dimension":"0"},{"name":"hwversion","type":"String","dimension":"0"},{"name":"swversion","type":"String","dimension":"0"},{"name":"compassz","type":"String","dimension":"0"},{"name":"MACBS","type":"String","dimension":"0"},{"name":"SNR","type":"String","dimension":"0"},{"name":"devEUI","type":"String","dimension":"0"},{"name":"battery","type":"String","dimension":"0"},{"name":"devicetype","type":"String","dimension":"0"},{"name":"compassx","type":"String","dimension":"0"},{"name":"compassy","type":"String","dimension":"0"},{"name":"compasst","type":"String","dimension":"0"},{"name":"neighbours","type":"String","dimension":"1"},{"name":"timestamp","type":"String","dimension":"0"}]},{"name":"gupsyoutput","createdDate":"Thu Sep 29 2016","attributes":[{"name":"Certainty","type":"Double","defaultValue":"1","dimension":0,"description":"The certainty that this event happen (value between 0 to 1)"},{"name":"OccurrenceTime","type":"Date","dimension":0,"description":"No value means it equals the event detection time, other option is to use one of the defined distribution functions with parameters"},{"name":"ExpirationTime","type":"Date","dimension":0},{"name":"Cost","type":"Double","dimension":0,"description":"The cost of this event occurrence. Negative if this is an opportunity"},{"name":"Duration","type":"Double","defaultValue":"0","dimension":0,"description":"Used in case the this event occur within an interval"},{"name":"test","type":"String","dimension":"1"}]}],"epas":[{"name":"gupsyepa","createdDate":"Thu Sep 29 2016","epaType":"Aggregate","context":"gupsyct","inputEvents":[{"name":"GupsyContextUpdate","alias":"gupsyupdate","consumptionPolicy":"Consume","instanceSelectionPolicy":"First"}],"computedVariables":[{"name":"count","aggregationType":"Count","gupsyupdate":"ArrayContains(ArrayGet(gupsyupdate.neighbours,0),ArrayGet(gupsyupdate.id,ArraySize(gupsyupdate.id)-1))"}],"assertion":"count == true","evaluationPolicy":"Immediate","cardinalityPolicy":"Single","internalSegmentation":[],"derivedEvents":[{"name":"gupsyoutput","reportParticipants":false,"expressions":{"Duration":"0","test":"ArrayContains(ArrayGet(gupsyupdate.neighbours,0),ArrayGet(gupsyupdate.devEUI,ArraySize(gupsyupdate.devEUI)-1))"}}]}],"contexts":{"temporal":[{"name":"gupsyct","createdDate":"Thu Sep 29 2016","type":"TemporalInterval","atStartup":false,"neverEnding":false,"initiators":[{"initiatorType":"Event","initiatorPolicy":"Ignore","name":"GupsyContextUpdate"}],"terminators":[{"terminatorType":"RelativeTime","terminationType":"Terminate","relativeTime":"15000"}]}],"segmentation":[],"composite":[]},"consumers":[{"name":"gupsyconsumer","createdDate":"Thu Sep 29 2016","type":"Rest","properties":[{"name":"URL","value":"http://127.0.0.1/ProtonParser/TestEvent2Log.php"},{"name":"contentType","value":"application/xml"},{"name":"formatter","value":"xml"},{"name":"delimiter","value":";"},{"name":"tagDataSeparator","value":"="},{"name":"dateFormat","value":"dd/MM/yyyy-HH:mm:ss"}],"events":[{"name":"gupsyoutput"}]}],"producers":[],"name":"gupsy"}}
「fiware-cep」というタグを付けてください。 – urishani