How to use the same payload factory JSON multiple times - json

Question

I have a payload factory in the requestpayloadsequence file in the WSO2 project. I have to use the same payload factory multiple times using some filter. Currently i have to repeat the same piece of code (shown below) for each filter. Is there any way that i can use the same payload factory without using the same code multiple times.
Is there any way i can set this payload factory to some parameter value. Could any body help how to achieve this.Below is the payloadfacotry code I am currently using.
<payloadFactory media-type="json">
<format> {
"1st": "$1",
"2nd": "$2",
"3rd": "$3",
"4th": "$4",
}
</format>
<args>
<arg evaluator="xml" expression="get-property('1')"/>
<arg evaluator="xml" expression="get-property('2')"/>
<arg evaluator="xml" expression="get-property('3')"/>
<arg evaluator="xml" expression="get-property('4')"/>
</args>
</payloadFactory>

Answer 1

You can use a sequence template :
<template xmlns="http://ws.apache.org/ns/synapse" name="PayloadTemplate">
<parameter name="P1"/>
<parameter name="P2"/>
<parameter name="P3"/>
<parameter name="P4"/>
<sequence>
<payloadFactory media-type="json">
<format> {
"1st": "$1",
"2nd": "$2",
"3rd": "$3",
"4th": "$4",
}
</format>
<args>
<arg evaluator="xml" expression="$func:P1"/>
<arg evaluator="xml" expression="$func:P2"/>
<arg evaluator="xml" expression="$func:P3"/>
<arg evaluator="xml" expression="$func:P4"/>
</args>
</payloadFactory>
</sequence>
</template>
Call this template in your mediation :
<call-template target="PayloadTemplate">
<with-param name="P1" value="{get-property('WWW')}"/>
<with-param name="P2" value="{get-property('XXX')}"/>
<with-param name="P3" value="{get-property('YYY')}"/>
<with-param name="P4" value="{get-property('ZZZ')}"/>
</call-template>

Answer 2

Try using Clone Mediator
URL :
https://docs.wso2.com/display/ESB403/Clone+Mediator