How to use data mapper transformer

How to use DataMapper
Transformer
12-12-2014

Abstract
• The main motto of this PPT is How to use
DataMapper Transformer in our applications.

Introduction
• DataMapper takes data in a specific format
and outputs the same data in the format of
your choice.

.mflow
<?xml version="1.0" encoding="UTF-8"?>
<mule xmlns:jdbc-ee="http://www.mulesoft.org/schema/mule/ee/jdbc" xmlns:data-mapper="http://www.mulesoft.org/schema/mule/ee/data-mapper"
xmlns:http="http://www.mulesoft.org/schema/mule/http" 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" version="EE-3.4.0"
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/ee/jdbc http://www.mulesoft.org/schema/mule/ee/jdbc/current/mule-jdbc-ee.xsd
http://www.mulesoft.org/schema/mule/ee/data-mapper http://www.mulesoft.org/schema/mule/ee/data-mapper/current/mule-data-mapper.xsd">
<spring:beans>
<spring:bean id="Bean1" name="Bean" class="org.enhydra.jdbc.standard.StandardDataSource">
<spring:property name="driverName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/>
<spring:property name="url" value="jdbc:sqlserver://localhost:1433;databaseName=test1;user=****;password=****;"/>
</spring:bean>
</spring:beans>
<jdbc-ee:connector name="Database" dataSource-ref="Bean1" validateConnections="true" queryTimeout="-1" pollingFrequency="0"
doc:name="Database"/>
<data-mapper:config name="new_mapping_grf" transformationGraphPath="new_mapping.grf" doc:name="new_mapping_grf"/>
<flow name="DataMapper_POCFlow1" doc:name="DataMapper_POCFlow1">
<http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8088" path="datamapper" doc:name="HTTP"/>
<logger message="--entered" level="INFO" doc:name="Logger"/>
<jdbc-ee:outbound-endpoint exchange-pattern="request-response" queryKey="select" queryTimeout="-1" connector-ref="Database"
doc:name="Database">
<jdbc-ee:query key="select" value="select * from mytable"/>
</jdbc-ee:outbound-endpoint>
<data-mapper:transform config-ref="new_mapping_grf" doc:name="DataMapper"/>
<logger message="---#[payload]" level="INFO" doc:name="Logger"/>
</flow>
</mule>

• Output:
INFO 2015-12-12 06:28:28,567 [main] org.mule.DefaultMuleContext:
**********************************************************************
* Application: DataMapper_POC *
* OS encoding: Cp1252, Mule encoding: UTF-8 *
* *
* Agents Running: *
* Clustering Agent *
* JMX Agent *
**********************************************************************
INFO 2015-12-12 06:28:28,568 [main] org.mule.module.launcher.MuleDeploymentService:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ Started app 'DataMapper_POC' +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
INFO 2015-12-12 06:28:39,973 [[DataMapper_POC].connector.http.mule.default.receiver.02]
org.mule.api.processor.LoggerMessageProcessor: --entered
org.mule.lifecycle.AbstractLifecycleManager: Initialising: 'Database.dispatcher.1295829687'. Object is:
EEJdbcMessageDispatcher
org.mule.lifecycle.AbstractLifecycleManager: Starting: 'Database.dispatcher.1295829687'. Object is:
EEJdbcMessageDispatcher
org.mule.api.processor.LoggerMessageProcessor: ---[{id=1, name=Ramesh, subj=Hindi, marks=55}, {id=2,
name=Mahesh, subj=English, marks=65}, {id=3, name=Pavan, subj=science, marks=75}, {id=4, name=Siva, subj=social,
marks=45}]

• Flow of execution:
1. URL to trigger the service from browser
http://localhost:8088/datamapper
2. Database component connects to the specific
database, executes the select query, maps the
results using DataMapper and prints the result
in console

References
• https://docs.mulesoft.com/mule-user-
guide/v/3.7/datamapper-supplemental-topics

How to use data mapper transformer

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