The document discusses how to use an AND filter in Mule applications. The AND filter allows messages to proceed through a flow only if all specified expression filters evaluate to true. An example flow is provided that uses two expression filters with an AND filter to check if a SOAP message contains the strings "mule" and "soft", logging "Success" if both expressions are true. The execution flow is described where a request is made to the service and the AND filter validates it contains both strings before further processing.

1. How to use And Filter
12-12-2014

2. Abstract
• The main motto of this PPT is How to use And
Filter in our applications.

3. Introduction
• Mule bundles more than a dozen Filters that
determine whether a message can proceed
through an application flow. The simplest
filters implement basic logic operators (such
as and, or, and not), but these simple
elements can be combined in various ways to
specify complex logical conditions.

4. Example

5. .mflow
<?xml version="1.0" encoding="UTF-8"?>
<mule 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">
<flow name="AndFilterFlow1" doc:name="AndFilterFlow1">
<http:inbound-endpoint exchange-pattern="request-response" host="localhost" port="8089" path="andfilter"
doc:name="HTTP"/>
<logger message="--entered into the flow" level="INFO" doc:name="Logger"/>
<set-payload value="&lt;Soap-Env&gt;&lt;Body&gt;&lt;Path&gt;mulesoft&lt;/Path&gt;&lt;/Body&gt;&lt;/Soap-
Env&gt;" doc:name="Set Payload"/>
<and-filter doc:name="And">
<expression-filter expression="#[xpath('/Soap-Env/Body/Path/text()').text.contains('mule')]"/>
<expression-filter expression="#[xpath('/Soap-Env/Body/Path/text()').text.contains('soft')]"/>
</and-filter>
<logger message="--Success" level="INFO" doc:name="Logger"/>
</flow>
</mule>

6. • Output:
INFO 2015-12-12 06:49:37,897 [main] org.mule.DefaultMuleContext:
**********************************************************************
* Application: AndFilter *
* OS encoding: Cp1252, Mule encoding: UTF-8 *
* *
* Agents Running: *
* Clustering Agent *
* JMX Agent *
**********************************************************************
INFO 2015-12-12 06:49:37,898 [main]
org.mule.module.launcher.MuleDeploymentService:
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
+ Started app 'AndFilter' +
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
INFO 2015-12-12 06:49:41,558 [[AndFilter].connector.http.mule.default.receiver.02]
org.mule.api.processor.LoggerMessageProcessor: --entered into the flow
INFO 2015-12-12 06:49:42,214 [[AndFilter].connector.http.mule.default.receiver.02]
org.mule.api.processor.LoggerMessageProcessor: --Success

7. • Flow of execution:
1. URL to trigger the service from browser
http://localhost:8089/andfilter
2. AND filter checks whether the request
contains ‘mule’ and ‘soft’ or not?, if yes, it will
print a message ‘Success’, else it will not go
further.

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