WSO2 ESB. Transfer file with VFS - vfs

Question

I need to check each file in directory "/home/user/from/" with com.wso2esb.command.MyCommand and if the result == true, replace file to "home/user/to/". I have the following proxy:
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="fromto"
transports="vfs"
statistics="enable"
trace="enable"
startOnLoad="true">
<target>
<inSequence>
<pojoCommand name="com.wso2esb.command.MyCommand">
<axis2ns47:property xmlns:axis2ns47="http://ws.apache.org/ns/synapse"
name="fileURL"
expression="$trp:FILE_PATH"
action="ReadMessage"/>
<axis2ns48:property xmlns:axis2ns48="http://ws.apache.org/ns/synapse"
name="result"
context-name="com.fx.FileIsOBI"
action="UpdateContext"/>
</pojoCommand>
<switch source="$ctx:com.fx.FileIsOBI">
<case regex="^true$">
<log level="custom">
<property name="OUTPUT"
expression="fn:concat('===555===', $ctx:com.fx.FileIsOBI)"/>
</log>
<property name="OUT_ONLY" value="true" scope="default"/>
<property xmlns:ns="http://org.apache.synapse/xsd"
xmlns:ns3="http://org.apache.synapse/xsd"
name="transport.vfs.ReplyFileName"
expression="$trp:FILE_NAME"
scope="transport"/>
<send>
<endpoint>
<address uri="vfs:file:////home/user/to"/>
</endpoint>
</send>
</case>
</switch>
</inSequence>
</target>
<parameter name="transport.PollInterval">10</parameter>
<parameter name="transport.vfs.ActionAfterProcess">DELETE</parameter>
<parameter name="transport.vfs.FileURI">vfs:file:////home/user/from/</parameter>
<parameter name="transport.vfs.FileNamePattern">.*\.txt</parameter>
<parameter name="transport.vfs.ContentType">application/octet-stream</parameter>
<parameter name="transport.vfs.ActionAfterFailure">DELETE</parameter>
<description/>
</proxy>
I can see the string "===555=== true" in the log file, it means that com.fx.FileIsOBI == true. But my file wasn't moved to "/home/user/to/". I think the problem is in
<property name="OUT_ONLY" value="true" scope="default"/>
<property xmlns:ns="http://org.apache.synapse/xsd"
xmlns:ns3="http://org.apache.synapse/xsd"
name="transport.vfs.ReplyFileName"
expression="$trp:FILE_NAME"
scope="transport"/>
<send>
<endpoint>
<address uri="vfs:file:////home/user/to"/>
</endpoint>
</send>
What's wrong?

Answer 1

Please check if VFS transport is enabled,
https://docs.wso2.com/display/ESB490/VFS+Transport
Following works fine for me
<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
name="fromto"
statistics="enable"
trace="enable"
startOnLoad="true">
<target>
<inSequence>
<log level="custom">
<property name="OUTPUT" value="===555==="/>
</log>
<property name="OUT_ONLY" value="true" scope="default"/>
<property xmlns:ns="http://org.apache.synapse/xsd"
xmlns:ns3="http://org.apache.synapse/xsd"
name="transport.vfs.ReplyFileName"
expression="$trp:FILE_NAME"
scope="transport"/>
<send>
<endpoint>
<address uri="vfs:file:///Users/lahiru/work/wso2/esb/9/to"/>
</endpoint>
</send>
</inSequence>
</target>
<parameter name="transport.vfs.ActionAfterProcess">DELETE</parameter>
<parameter name="transport.PollInterval">10</parameter>
<parameter name="transport.vfs.FileURI">vfs:file:///Users/lahiru/work/wso2/esb/9/from</parameter>
<parameter name="transport.vfs.FileNamePattern">.*\.txt</parameter>
<parameter name="transport.vfs.ContentType">application/octet-stream</parameter>
<parameter name="transport.vfs.ActionAfterFailure">DELETE</parameter>
<description/>
</proxy>

Answer 2

I think there is an issue in your file path. Could you change it as below.
<parameter name="transport.vfs.FileURI">vfs:file:///home/user/from/</parameter>
<send>
<endpoint>
<address uri="vfs:file:///home/user/to"/>
</endpoint>
</send>
More over since you are processing an xml file change the content type as follows.
<parameter name="transport.vfs.FileNamePattern">.*\.xml</parameter>
<parameter name="transport.vfs.ContentType">text/xml</parameter>
Do these suggested changes and let us know your feedback.