Can CEP http receiver receive multi data nodes one time - wso2

Question

I used ESB to transform the XML message to CEP http receiver, the XML:
<result>
<event>
<tag>0101A01B001</tag>
<time>10:00:01</time>
<value>30.45</value>
</event>
<event>
<tag>0101A01B001</tag>
<time>10:00:02</time>
<value>33.7</value>
</event>
<event>
<tag>0101A01B001</tag>
<time>10:00:03</time>
<value>23.4</value>
</event>
<event>
<tag>0101A01B001</tag>
<time>10:00:04</time>
<value>33.15</value>
</event>
</result>
And the http receiver in CEP :
<?xml version="1.0" encoding="UTF-8"?>
<eventReceiver name="recv_dss1" statistics="disable" trace="enable" xmlns="http://wso2.org/carbon/eventreceiver">
<from eventAdapterType="http">
<property name="transports">all</property>
</from>
<mapping customMapping="enable" type="xml">
<property>
<from xpath="/result/data/tag"/>
<to name="tag" type="string"/>
</property>
<property>
<from xpath="/result/data/time"/>
<to name="time" type="long"/>
</property>
<property>
<from xpath="/result/data/value"/>
<to name="value" type="double"/>
</property>
</mapping>
<to streamName="dss_stream3" version="1.0.0"/>
</eventReceiver>
The http receiver only receive the first "event" node every time, so how to config the receiver can receive all the "event" nodes one time ?

Answer 1

In the configuration you need to configure "Parent Selector XPath Expression" to indicate the parent element of the events, in this case its /result.
Then elements of the event should be referred from the parent tag, e.g. /data/time
Refer to WSO2 CEP 4.1 XML input mapping documentation for details : https://docs.wso2.com/display/CEP410/Input+Mapping+Types#InputMappingTypes-XMLinputmappingXMLInputMapping