XPath from file in VFS Transport WSO2 ESB - wso2

Question

I want to read some values from a file that being processed by the VFS transport.
My file is :
<sales>
<header>
<source>STORE1</source>
<target>HEADOFFICE</target>
</header>
So I use a property mediator to get the value I want using XPath. But when I print that property in Log Mediator it prints nothing. My proxy look like this :
<proxy name="Try1"
transports="vfs"
startOnLoad="true"
trace="disable">
<target>
<inSequence>
<property xmlns:ns="http://org.apache.synapse/xsd"
name="source"
expression="//header/source/text()"
scope="default"
type="STRING"/>
<log level="full">
<property xmlns:ns="http://org.apache.synapse/xsd"
name="Value_source"
expression="get-property('source')"/>
</log>
</inSequence>
</target>
<parameter name="transport.vfs.ActionAfterProcess">MOVE</parameter>
<parameter name="transport.PollInterval">15</parameter>
<parameter name="transport.vfs.MoveAfterProcess">file:///Users/Target</parameter>
<parameter name="transport.vfs.FileURI">file:///Users/Source</parameter>
<parameter name="transport.vfs.MoveAfterFailure">file:///Users/Failure</parameter>
<parameter name="transport.vfs.FileNamePattern">.*.txt</parameter>
<parameter name="transport.vfs.ContentType">text/plain</parameter>
<parameter name="transport.vfs.ActionAfterFailure">MOVE</parameter>
The log mediator result is
[2013-06-28 16:59:49,939] INFO - LogMediator Value_source=
So how can I get the values in file using XPath?

Answer 1

The issue is due to the ContentType set for the transport parameter:
Switch
<parameter name="transport.vfs.ContentType">text/plain</parameter>
with
<parameter name="transport.vfs.ContentType">application/xml</parameter>
since you're doing XPath operations on the message.

Answer 2

The problem is with the content of your file. Since it is not well-formed, the xpath expression fails. Isn't it possible for you to have the well-formed xml in the input content?
<sales>
<header>
<source>STORE1</source>
<target>HEADOFFICE</target>
</header>
</sales>