Ho to use cache scope component in mule

1. How to use Cache Scope
Component
12-02-2016

2. Abstract
• The main motto of this PPT is how to use Cache Scope
component in our applications.

3. Introduction
• The Cache Scope processes the message, delivers the output
to the parent or caller flow and saves the output (i.e. caches
the response). The next time Mule sends the same kind of
message into the cache scope, the cache scope may offer a
cached response rather than invoking, again, a potentially
time-consuming process.

4. Example

5. .mflow
•.mflow• <?xml version="1.0" encoding="UTF-8"?>
• <mule xmlns:context="http://www.springframework.org/schema/context" xmlns:http="http://www.mulesoft.org/schema/mule/http" xmlns:ee=http://www.mulesoft.org/schema/mule/ee/core
• xmlns:tracking="http://www.mulesoft.org/schema/mule/ee/tracking" xmlns:mulexml="http://www.mulesoft.org/schema/mule/xml" 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/ee/tracking http://www.mulesoft.org/schema/mule/ee/tracking/current/mule-tracking-ee.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/xml http://www.mulesoft.org/schema/mule/xml/current/mule-xml.xsd
• http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-current.xsd
• http://www.mulesoft.org/schema/mule/ee/core http://www.mulesoft.org/schema/mule/ee/core/current/mule-ee.xsd">
• <http:request-config name="SabreHTTP_Request_Configuration" protocol="HTTPS" host="${ehbe.sabre.host}" port="${ehbe.sabre.port}" basePath="/" doc:name="HTTP Request Configuration"/>
• <http:listener-config name="SabreHTTP_Listener_Configuration" host="localhost" port="8082" basePath="Sabre" doc:name="HTTP Listener Configuration"/>
• <ee:object-store-caching-strategy name="Caching_Strategy" doc:name="Caching Strategy">
• <in-memory-store name="SabreSessionCreate" maxEntries="-1" entryTTL="${sabre.session.refreshInterval}" expirationInterval="${sabre.session.refreshInterval}"/>
• </ee:object-store-caching-strategy>
• <context:property-placeholder location="file:${mule_home}/conf/esb-ehbe-common.properties"/>
• <flow name="SessionCreateFlow">
• <http:listener config-ref="SabreHTTP_Listener_Configuration" path="/" doc:name="HTTP"/>
• <ee:cache cachingStrategy-ref="Caching_Strategy" doc:name="Cache">
• <set-payload value="&lt;SOAP-ENV:Envelope xmlns:SOAP-ENV = &quot;http://schemas.xmlsoap.org/soap/envelope/&quot; xmlns:eb = &quot;http://www.ebxml.org/namespaces/messageHeader&quot;
• xmlns:xlink = &quot;http://www.w3.org/1999/xlink&quot; xmlns:xsd = &quot;http://www.w3.org/1999/XMLSchema&quot;&gt; &lt;SOAP-ENV:Header&gt; &lt;eb:MessageHeader SOAP-ENV:mustUnderstand = &quot;1&quot; eb:version = &quot;1.0&quot;&gt;
• &lt;eb:From&gt; &lt;eb:PartyId type = &quot;urn:x12.org:IO5:01&quot;&gt;999999&lt;/eb:PartyId&gt; &lt;/eb:From&gt; &lt;eb:To&gt; &lt;eb:PartyId type = &quot;urn:x12.org:IO5:01&quot;&gt;123123&lt;/eb:PartyId&gt;
• &lt;/eb:To&gt; &lt;eb:CPAId&gt;W2PH&lt;/eb:CPAId&gt; &lt;eb:ConversationId&gt;${sabre.session.conversationId}&lt;/eb:ConversationId&gt; &lt;eb:Service eb:type = &quot;OTA&quot;&gt;SessionCreateRQ&lt;/eb:Service&gt;
• &lt;eb:Action&gt;SessionCreateRQ&lt;/eb:Action&gt; &lt;eb:MessageData&gt; &lt;eb:MessageId&gt;1000&lt;/eb:MessageId&gt; &lt;/eb:MessageData&gt; &lt;/eb:MessageHeader&gt;
• &lt;wsse:Security xmlns:wsse = &quot;http://schemas.xmlsoap.org/ws/2002/12/secext&quot; xmlns:wsu = &quot;http://schemas.xmlsoap.org/ws/2002/12/utility&quot;&gt; &lt;wsse:UsernameToken&gt;
• &lt;wsse:Username&gt;${sabre.session.username}&lt;/wsse:Username&gt; &lt;wsse:Password&gt;${sabre.session.password}&lt;/wsse:Password&gt; &lt;Organization&gt;${sabre.session.organization}&lt;/Organization&gt;
• &lt;Domain&gt;DEFAULT&lt;/Domain&gt; &lt;/wsse:UsernameToken&gt; &lt;/wsse:Security&gt; &lt;/SOAP-ENV:Header&gt; &lt;SOAP-ENV:Body&gt; &lt;SessionCreateRQ returnContextID = &quot;true&quot;&gt; &lt;POS&gt;
• &lt;Source PseudoCityCode = &quot;W2PH&quot;/&gt; &lt;/POS&gt; &lt;/SessionCreateRQ&gt; &lt;ns:OTA_HotelAvailRQ xmlns:ns = &quot;http://webservices.sabre.com/sabreXML/2011/10&quot;&gt; &lt;ns:AvailRequestSegment/&gt;
• &lt;/ns:OTA_HotelAvailRQ&gt; &lt;/SOAP-ENV:Body&gt; &lt;/SOAP-ENV:Envelope&gt; " doc:name="CreateSessionRQPayload"/>
• <mulexml:dom-to-xml-transformer doc:name="DOM to XML"/>
• <http:request config-ref="SabreHTTP_Request_Configuration" path="/" method="POST" doc:name="HTTP"/>
• <logger message=":: :: Sabre new session creted :: :: " level="INFO" doc:name="Logger"/>
• </ee:cache>
• <logger message="Sabre session response--#[payload]" level="INFO" doc:name="Logger"/>
• </flow>
• </mule>

6. Output:
•

7. • Flow of execution:
1. URL to trigger the service from browser
http://localhost:8082/Sabre
2. When the flow triggered cache block will
execute first time and it will cache the response
up to 10 minutes. Mean while whenever we call
that flow it will return the response from cache
without executing the cache block.

8. References
• https://docs.mulesoft.com/mule-user-guide/v/3.7/cache-
scope