WSO2ESB concat input file name with SYSTEM_DATE - wso2

Question

I am going to concat input file name with SYSTEM_DATE below is the code
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="importclassroomcourse"
transports="https,http,local"
statistics="disable"
trace="disable"
startOnLoad="true">
<target>
<inSequence>
<log level="custom">
<property name="transport.vfs.ReplyFileName"
expression="fn:concat(get-property('SYSTEM_DATE', 'yyMMddHHmmss'), '-', get-property('filename'), '.xml')"/>
</log>
</inSequence>
<outSequence>
<send/>
</outSequence>
<endpoint>
<address uri="https://qa-abc.com/api/classroom/xyz"/>
</endpoint>
</target>
<description/>
</proxy>
But it won't concat the file name below is the log
LogMediator transport.vfs.ReplyFileName = 160316122250-.xml
Kindly guide me how can i get the file name because file name is missing.I have sent the file test.xlsx

Answer 1

I can't find any initialisation of property 'filename' in your mediation : this property does not exist and therefore, has no value when used in 'concat'.
What do you mean by "I have sent the file text.xlsx" ? Your proxy use http and local transport, it's not a VFS proxy scanning a directory to load files ?
You can define this property :
<property name="transport.vfs.ReplyFileName" expression="fn:concat(get-property('SYSTEM_DATE', 'yyMMddHHmmss'), '-test.xml')"/>
but after that, you must use send with a vfs endpoint inside the inSequence to write the file (in your case, there is a https endpoint)
If your proxy were a VFS proxy, you could use FILE_NAME on scope transport to get incoming filename.