wso2cep

问题 I am pretty new to WSO2 CEP Siddhi QL, I got a requirement to analyze the events coming to a stream. For ex: I have data coming in like this [id,value]: InputStream=[1001,90] InputStream=[1001,85] InputStream=[1002,70] InputStream=[1001,85] InputStream=[1003,70] InputStream=[1003,85] InputStream=[1002,70] InputStream=[1003,70] InputStream=[1003,85] InputStream=[1002,70] InputStream=[1001,95] InputStream=[1001,65] In this, I want to segregate each records and group based on the id 1001, 1002

问题 I am trying to install and run ESB and CEP both on the same machine. I have tried to set port offset to 1, to prevent port conflict, but still after running ESB, I am not able to run CEP. The error log in cmd is as bellow: `C:\Program Files\yajsw-stable-11.03_cep\bat>call setenv.bat "java" -Xmx30m -Djna_tmpdir="C:\Program Files\yajsw-stable-11.03_cep\bat\/../tmp " -jar "C:\Program Files\yajsw-stable-11.03_cep\bat\/../wrapper.jar" -t "C:\Program Files\yajsw-stable-11.03_cep\bat\/../conf

问题 First of all let me description my requirement: data.csv : column one is id,column two is vlaue. 1,0 2,0 3,0 4,86 5,87 6,88 7,89 8,86 9,0 10,0 11,0 12,0 13,0 14,86 15,87 16,88 17,89 18,0 19,0 20,0 here is my InputStream and my OutPutStream : id int,value int data.csv will insert into InputStream by using Event Stream Simulator . If there are five consecutive value>=85, I would record the first id,value into OutPutStream . For example,I will record id=4,value=86 ,but id=14 to id=17 i will

问题 First of all let me description my requirement: data.csv : column one is id,column two is vlaue. 1,0 2,0 3,0 4,86 5,87 6,88 7,89 8,86 9,0 10,0 11,0 12,0 13,0 14,86 15,87 16,88 17,89 18,0 19,0 20,0 here is my InputStream and my OutPutStream : id int,value int data.csv will insert into InputStream by using Event Stream Simulator . If there are five consecutive value>=85, I would record the first id,value into OutPutStream . For example,I will record id=4,value=86 ,but id=14 to id=17 i will

问题 I want to learn WSO2CEP by doing the example in documentation here one by one. But I'm stuck on the first example sn=0001, the error when i try to build producer is [java] Starting WSO2 Http Client [java] Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException:4 [java] at org.wso2.carbon.sample.http.Http.main(Unknown Source) [java] Java Result: 1 Please.. is anyone know where I can download WSO2CEP 4.0.0 version that work for all sample in documentation? 回答1: All samples are

问题 I have a scenario in which I have MQTT publisher. MQTT Client --> Message Broker --> WSO2 CEP (JMS input adaptor) What are the ways by which I can get this published MQTT message as input to WSO2 CEP? I tried using ActiveMQ as a message broker and a CEP JMS input adaptor listening to JMS message but ActiveMQ transforms MQTT message as ByteMessage, I believe CEP does not handles it as of now, as JMS messages published in the same setup is working fine. I know WSO2 CEP 4.0.0 has a feature of

问题 I have a scenario in which I have MQTT publisher. MQTT Client --> Message Broker --> WSO2 CEP (JMS input adaptor) What are the ways by which I can get this published MQTT message as input to WSO2 CEP? I tried using ActiveMQ as a message broker and a CEP JMS input adaptor listening to JMS message but ActiveMQ transforms MQTT message as ByteMessage, I believe CEP does not handles it as of now, as JMS messages published in the same setup is working fine. I know WSO2 CEP 4.0.0 has a feature of

问题 I have a scenario in which I have MQTT publisher. MQTT Client --> Message Broker --> WSO2 CEP (JMS input adaptor) What are the ways by which I can get this published MQTT message as input to WSO2 CEP? I tried using ActiveMQ as a message broker and a CEP JMS input adaptor listening to JMS message but ActiveMQ transforms MQTT message as ByteMessage, I believe CEP does not handles it as of now, as JMS messages published in the same setup is working fine. I know WSO2 CEP 4.0.0 has a feature of

问题 I want to update event table (RDBMS) using additional condition that one column in that is not null. Table name is MSISDNProfileDB and it's in oracle db. from incomingStream#window.length(1) select correlation_MSISDN as MSISDN, INTERACTION_DT as INTERACTION_DT update MSISDNProfileDB on MSISDNProfileDB.MSISDN == MSISDN and not(MSISDNProfileDB.column1 is null); it validates the code, but does not update INTERACTION_DT. For testing purposes, I changed it to check if the column is null, and

问题 Is there any document/article explaining the event lifecycle in WSO2 CEP? I dont quite understand how the events are discarded from the event streams. Thank you, Hugo Calado 回答1: Events will be discarded immediately. Basic flow is stream will receive events from and receivers and it will immediately push events to publisher without storing. If you want to collect event for certain time periods you can use somwthing like time windows in Siddhi Execution Plans [1]. In following Siddhi query it