How to use data mapper transformer

1. How to use DataMapper
Transformer
16-05-2015

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

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

4. Example

5. .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="8065" 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>

6.  Output:
+++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++
+ Started app 'DataMapper' +
+++++++++++++++++++++++++++++++++++++++++++++++++++
+++++++++
INFO 2015-05-16 10:00:00,123
[[DataMapper_POC].connector.http.mule.default.receiver.02]
org.mule.api.processor.LoggerMessageProcessor: --entered
INFO 2015-05-16 10:00:00,123
[[DataMapper_POC].connector.http.mule.default.receiver.02]
org.mule.lifecycle.AbstractLifecycleManager: Initialising:
'Database.dispatcher.1295829687'. Object is: EEJdbcMessageDispatcher
INFO 2015-05-16 10:00:00,123
[[DataMapper_POC].connector.http.mule.default.receiver.02]
org.mule.lifecycle.AbstractLifecycleManager: Starting:
'Database.dispatcher.1295829687'. Object is: EEJdbcMessageDispatcher
INFO 2015-05-16
10:00:00,254[[DataMapper_POC].connector.http.mule.default.receiver.02]
org.mule.api.processor.LoggerMessageProcessor: ---[{id=1, name=a, subj=Hindi,
marks=34}, {id=2, name=b, subj=English, marks=33}, {id=3, name=c,
subj=science, marks=67}, {id=4, name=d, subj=social, marks=89}]

7.  Flow of execution:
1. URL to trigger the service from browser
http://localhost:8065/datamapper
2. Database component connects to the
specific database, executes the select
query, maps the results using DataMapper
and prints the result in console

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