WSO2 ESB/EI : How to get Original JSON body into XML Payload

Question

I'm implementing WSO2 EI-6.4.0 for the project and I want to convert JSON to XML. Below issue came when HTML tags contain in the JSON response.

Example:

Input:

{
  "departurePoint": "1: Galle, Sri Lanka<br />2: Hikkaduwa, Sri Lanka<br />3: Unawatuna, Sri Lanka<br />4: Ahangama, Sri Lanka<br />5: Midigama Beach, Sri Lanka<br />6: Weligama, Sri Lanka<br />7: Mirissa, Sri Lanka<br /><br>Traveler pickup is offered<br/>Free Pick up locations : Hikkaduwa , Galle ,Unawatuna , Ahangama , Midigama , Weligama , Mirissa<br><br>"
}

Original Output:

<departurePoint>
    1: Galle, Sri Lanka
    <br />2: Hikkaduwa, Sri Lanka
    <br />3: Unawatuna, Sri Lanka
    <br />4: Ahangama, Sri Lanka
    <br />5: Midigama Beach, Sri Lanka
    <br />6: Weligama, Sri Lanka
    <br />7: Mirissa, Sri Lanka
    <br />
    <br>Traveler pickup is offered
        <br/>Free Pick up locations : Hikkaduwa , Galle ,Unawatuna , Ahangama , Midigama , Weligama , Mirissa
        <br>
    <br>
</departurePoint>

Expected Output:

<departurePoint>
    <![CDATA[1: Galle, Sri Lanka<br />2: Hikkaduwa, Sri Lanka<br />3: Unawatuna, Sri Lanka<br />4: Ahangama, Sri Lanka<br />5: Midigama Beach, Sri Lanka<br />6: Weligama, Sri Lanka<br />7: Mirissa, Sri Lanka<br /><br>Traveler pickup is offered<br/>Free Pick up locations : Hikkaduwa , Galle ,Unawatuna , Ahangama , Midigama , Weligama , Mirissa<br><br>]]>
</departurePoint>

I couldn't find the way to insert CDATA for the sequence.

Answer 1

In order to achieve your requirement, you can use the Payload factory mediator as well. Following is a sample mediation to achieve your requirements. Here a registry resource is used with the CDATA element to avoid a limitation in the payload factory mediator

Proxy configuration

<?xml version="1.0" encoding="UTF-8"?>
<proxy xmlns="http://ws.apache.org/ns/synapse"
       name="sampleProxy"
       startOnLoad="true"
       statistics="disable"
       trace="disable"
       transports="http,https">
   <target>
      <inSequence>
         <call>
            <endpoint>
               <http uri-template="http://www.mocky.io/v2/5dbdc767330000678f16a289"/>
            </endpoint>
         </call>
         <log level="custom">
            <property expression="$body/jsonObject/departurePoint" name="test"/>
         </log>
         <payloadFactory media-type="xml">
            <format key="conf:/test/format.xml"/>
            <args>
               <arg evaluator="xml" expression="$body/jsonObject/departurePoint"/>
            </args>
         </payloadFactory>
         <respond/>
      </inSequence>
   </target>
   <description/>
</proxy>

Registry resource (format.xml)

<soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope">
<soap:Body>
     <departurePoint ><![CDATA[$1]]></departurePoint>
</soap:Body>

Even with this configuration, you will not get the expected output. The reason for this is WSO2 EI uses STAX parser and by default, the STAX parser is in non-coalescing mode. To correct that, you need to do the following

1. create a file called XMLInputFactory.properties inside <EI_HOME>

2. Add the following content into the file

javax.xml.stream.isCoalescing=false