WSO2 SP upgrading from DAS - wso2

Question

I am trying to upgrade from WSO2 DAS to SP; which involves rewriting the event flow definition with Siddhi SQL script.
my object is that all changes be restricted within Siddhi SQL script(thus within SP).
I am using DAS as a simple "Message Broker" in a micro service context.
as shown in the diagram:
there are three(3) micro services: A, B, C; service A calls service B, and C.
service A issues an "wso2event" with the wso2 data agent;
the event is received by a receiver (type="wso2event") in the DAS;
two(2) publishers (eventAdapterType="soap") were used to form two SOAP messages and published respectively to service B and C
below are my artifacts definitions:
stream:
{
"name": "ip3c",
"version": "1.0.0",
"nickName": "ip3c.receiverservice.senderservice.follow",
"description": "follow event from receiver to sender and userevent",
"metaData": [
{
"name": "sender",
"type": "STRING"
}
],
"correlationData": [
{
"name": "host",
"type": "STRING"
}
],
"payloadData": [
{
"name": "message",
"type": "STRING"
}
]
}
receiver:
<?xml version="1.0" encoding="UTF-8"?>
<!-- gbb2.receiverservice.follow -->
<eventReceiver name="gbb2" statistics="disable"
trace="disable" xmlns="http://wso2.org/carbon/eventreceiver">
<from eventAdapterType="wso2event">
<property name="receiving.events.duplicated.in.cluster">false</property>
</from>
<mapping customMapping="disable" type="wso2event"/>
<to streamName="ip3c" version="1.0.0"/>
</eventReceiver>
publisher 1:
<?xml version="1.0" encoding="UTF-8"?>
<!-- pnbu.senderservice.follow -->
<eventPublisher name="pnbu" statistics="disable"
trace="disable" xmlns="http://wso2.org/carbon/eventpublisher">
<from streamName="ip3c" version="1.0.0"/>
<mapping customMapping="enable" type="xml">
<inline>
<sen:follow xmlns:sen="http://gubnoi.com/SenderService/">
<sender>{{meta_sender}}</sender>
<host>{{correlation_host}}</host>
<message>{{message}}</message>
</sen:follow>
</inline>
</mapping>
<to eventAdapterType="soap">
<property name="soapHeaders">SOAPAction: http://gubnoi.com/SenderService/follow</property>
<property name="url">http://sender.gubnoi.com:10102/services/SenderService/</property>
</to>
</eventPublisher>
publisher 2:
<?xml version="1.0" encoding="UTF-8"?>
<!-- tvzh.userevent.receiverfollow -->
<eventPublisher name="tvzh" statistics="disable"
trace="disable" xmlns="http://wso2.org/carbon/eventpublisher">
<from streamName="ip3c" version="1.0.0"/>
<mapping customMapping="enable" type="xml">
<inline>
<use:save xmlns:use="http://gubnoi.com/UserEvents/">
<title>u5khurw3</title>
<obj>{{meta_sender}}</obj>
<host>{{correlation_host}}</host>
<bucket>{{message}}</bucket>
</use:save>
</inline>
</mapping>
<to eventAdapterType="soap">
<property name="soapHeaders">SOAPAction: http://gubnoi.com/UserEvents/save</property>
<property name="url">http://userevents.gubnoi.com:10304/services/UserEvents/</property>
</to>
</eventPublisher>
I searched around, and could not find any useful examples.
Can anyone please give any help
thanks

Answer 1

WSO2 Stream Processor has a documentation on upgrading from a previous release. You can refer the documentation to create siddhi artifact from your streams, receivers and publishers.