Async Scope With Mule ESB

Async Scope With Mule ESB

Transcript

1. Async Scope With Mule ESB Jitendra Bafna
2. Async Scope With Mule ESB Async scope is branch processing block that executes simultaneously with the parent message flow. It means that you have some activity in the flow that can be process without stopping the flow. There are some time consuming operation (printing a file or sending SMTP email) which doesn’t have dependency in further flow. In such scenarios you can use Async scope. There are two flows parent and child flow in your mule application. Parent flow is calling the child flow to perform some task but parent flow doesn’t have dependency from result of child flow. In such scenarios if you don’t use the Async scope then parent flow stop its execution till child flow complete it’s execution. In such scenarios, we should use Async scope, so parent and child flow both will execute in the parallel in different threads.
3. Async Scope With Mule ESB Scope is basically known as a wrappers. Mule provide Async scope and it is available in Mule palette.
4. Async Scope With Mule ESB 1.) Drag and Drop HTTP Listener in canvas and configure it.
5. Async Scope With Mule ESB 2.) Drag and Drop child flow below parent flow. Place the groovy component and add script to wait flow for 30 seconds.
6. Async Scope With Mule ESB 3.) Place Set Payload component after Groovy in child flow.
7. Async Scope With Mule ESB 4.) Place the Async scope in parent flow and then flow reference component in Async scope. Call the child flow.
8. Async Scope With Mule ESB 5.) Place the Set Payload component in the parent flow.
9. Conclusion Once you will POST the message, the parent flow call the child flow asynchronously. Child flow will wait for 30 seconds but parent flow will not stop it execution. It will continue its processing. Both the flow continue the processing in parallel. <?xml version="1.0" encoding="UTF-8"?> <mule xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns:scripting="http://www.mulesoft.org/schema/mule/scripting" xmlns="http://www.mulesoft.org/schema/mule/core" xmlns:doc="http://www.mulesoft.org/schema/mule/documentation" xmlns:spring="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-current.xsd http://www.mulesoft.org/schema/mule/core http://www.mulesoft.org/schema/mule/core/current/mule.xsd http://www.mulesoft.org/schema/mule/http http://www.mulesoft.org/schema/mule/http/current/mule-http.xsd http://www.mulesoft.org/schema/mule/scripting http://www.mulesoft.org/schema/mule/scripting/current/mule-scripting.xsd"> <http:listener-config name="HTTP_Listener_Configuration" host="0.0.0.0" port="8081" doc:name="HTTP Listener Configuration"/> <flow name="async-scopeFlow"> <http:listener config-ref="HTTP_Listener_Configuration" path="/async" allowedMethods="POST" doc:name="HTTP"/> <async doc:name="Async"> <flow-ref name="async-scopeFlow1" doc:name="async-scopeFlow1"/> </async> <set-payload value="#['Parent Flow Completed']" doc:name="Set Payload"/> </flow> <flow name="async-scopeFlow1"> <scripting:component doc:name="Groovy"> <scripting:script engine="Groovy"><![CDATA[sleep(30000)]]></scripting:script> </scripting:component> <set-payload value="#['Child flow executed.']" doc:name="Set Payload"/> </flow> </mule>
10. Async Scope With Mule ESB [Video] https://www.youtube.com/watch?v=NFAxBEl3sEg
11. Thank you.