Difficulties to work with Choice

@jrberlezi, Firstly, I would recommend to read the documentation to understand what does the component do and what it offers.

Secondly, mule returns `file name` in the inbound properties viz., `originalFileName`, this `inboundProperty` to be used to get hold of the `extension`. try something like this:

# [org.apache.commons.io.FilenameUtils.getExtension(message.inboundProperties.originalFilename)]

which will return the file extension only like `xml/txt/csv`

In essence, to achieve what you want to do is:

<flow name="application_a1Flow2">

<file:inbound-endpoint path="C:\Users\Rodolfo\Downloads\Mulep" responseTimeout="10000" doc:name="File"/>

<set-variable variableName="fileExtension" value="#&nbsp;[org.apache.commons.io.FilenameUtils.getExtension(message.inboundProperties.originalFilename)]" doc:name="Variable"/>

<logger message="#&nbsp;[message.inboundProperties.originalFilename + ' ' + flowVars.fileExtension] and #&nbsp;[flowVars.fileExtension =='xml']" level="INFO" doc:name="Logger"/>

<echo-component doc:name="File Transfer to Specific Folder"/>

<choice doc:name="Choice" tracking:enable-default-events="true">

<when expression="#&nbsp;[flowVars.fileExtension =='txt']">

<file:outbound-endpoint path="C:\Users\Rodolfo\Downloads\MuleTests\B" responseTimeout="10000" doc:name="B"/>

</when>

<when expression="#&nbsp;[flowVars.fileExtension =='xml']">

<file:outbound-endpoint path="C:\Users\Rodolfo\Downloads\MuleTests\A" responseTimeout="10000" doc:name="A"/>

</when>

<otherwise>

<logger message="#&nbsp;[payload]" level="INFO" doc:name="Logger"/>

</otherwise>

</choice>

</flow>

HTH