how to send response as String using class mediator in wso2 esb - wso2-esb

Question

In my project I created some proxy.There transport type is tcp.
My response is
{
"BillingSystem": {
"request_id": "20114140080000011479122000",
"request_timestamp": "12102012121200",
"response_timestamp": "12102012121300",
"action": "AddSubscription",
"username": "Cellcard ",
"result_code": "0",
"result_desc": "Success"
}
}
I catch this response using class mediator and create WZ2OCS2:1:14:14008:1:#1479122000# using that response. I need to send this string to tcp client. I set this String in the class meditor
context.setProperty("responseClientValue", responseClientValue);
After set this value in class mediator I used payload factory mediator and after that property mediator.
<payloadFactory description="" media-type="xml">
<format>
<name xmlns="">$1</name>
</format>
<args>
<arg evaluator="xml" expression="get-property('responseClientValue')"/>
</args>
</payloadFactory>
property mediator
<property name="messageType" scope="axis2" type="STRING" value="application/text"/>
When I run project Its show xml code
<?xml version='1.0' encoding='UTF-8'?><soapenv:Envelope xmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/"><soapenv:Body><name>WZ2OCS2:1:14:14008:1:#1479122000#</name></soapenv:Body></soapenv:Envelope>?
Here is my proxy service
<?xml version="1.0" encoding="UTF-8"?>
<proxy name="SurepayBillingErrorHandlingProxy" startOnLoad="true" transports="tcp" xmlns="http://ws.apache.org/ns/synapse">
<target>
<inSequence>
<class description="" name="esb.cellcard.billing.SurepayMediator"/>
<property name="messageType" scope="axis2" type="STRING" value="application/json"/>
<send>
<endpoint key="SurpayBillingEP"/>
</send>
</inSequence>
<outSequence>
<class name="esb.cellcard.billing.ResponseRequestId"/>
<payloadFactory description="" media-type="xml">
<format>
<name xmlns="">$1</name>
</format>
<args>
<arg evaluator="xml" expression="get-property('responseClientValue')"/>
</args>
</payloadFactory>
<property name="messageType" scope="axis2" type="STRING" value="application/text"/>
<send/>
</outSequence>
<faultSequence/>
</target>
<parameter name="transport.tcp.responseClient">true</parameter>
<parameter name="transport.tcp.inputType">string</parameter>
<parameter name="transport.tcp.recordDelimiter">?</parameter>
<parameter name="transport.tcp.contentType">text/plain</parameter>
<parameter name="transport.tcp.port">6050</parameter>
<parameter name="transport.tcp.recordDelimiterType">character</parameter>
</proxy>
How can I get only string value. Thank you

Answer 1

Change your payloadFactory like this :
<payloadFactory>
<format>
<text xmlns="http://ws.apache.org/commons/ns/payload">$1</text>
</format>
<args>
<arg evaluator="xml" expression="$ctx:responseClientValue"/>
</payloadFactory>
Change property messageType like this :
<property name="messageType" scope="axis2" type="STRING" value="text/plain"/>
(see axis2.xml, by default, the PlainTextFormatter class is associated with text/plain : <messageFormatter contentType="text/plain" class="org.apache.axis2.format.PlainTextFormatter"/>)