WSO2 Custom Mediator Set value for the Envelope - wso2

Question

Deal All,
I'd create one custom mediator in my WSO2 ESB project at the OutSequence.
I would like to change the result in SOAP Envelope being send from the back end to the consumer. But with a little bit of adjustment to the data according to the result.
this is the SOAP Envelope
<soapenv:Bodyxmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<jsonObject>
<serviceRequestID>12345</serviceRequestID>
<statusCode>1</statusCode>
<errorCode></errorCode>
<errorDescription></errorDescription>
<addressID>1.23456794E9</addressID>
<source>consumer name</source>
<requestId>910514</requestId>
</jsonObject>
I want to create a custom mediator to set the Error Description base on the Error Code.
For example,
if error code 1 = error description = one
if error code 2 = error description = two
if error code 3 = error description = three
This is my custom mediator code.
private void ResponseLogging(MessageContext mc) throws OMException{
try {
String errorCode = mc.getEnvelope().getBody().getFirstElement().getFirstChildWithName(new QName("errorCode")).getText();
String errorDescription = null;
if(errorCode.equals("1")) {
errorDescription = "One";
}else if(errorCode.equals("2")) {
errorDescription = "Two";
}else if(errorCode.equals("3")) {
errorDescription = "Three";
}
mc.getEnvelope().getBody().getFirstElement().getFirstChildWithName(new QName("errorDescription")).setText(errorDescription);
} catch (Exception e) {
log.error(e.getMessage(), e);
}
}
Expected response,
<soapenv:Bodyxmlns:soapenv="http://schemas.xmlsoap.org/soap/envelope/">
<jsonObject>
<serviceRequestID>12345</serviceRequestID>
<statusCode>1</statusCode>
<errorCode>1</errorCode>
<errorDescription>One</errorDescription>
<addressID>1.23456794E9</addressID>
<source>consumer name</source>
<requestId>910514</requestId>
</jsonObject>
But now, I only get the error description as null.
kindly help. any advice would be great !
Thanks.
UPDATED !
Apparently, after set the value using the setText() method. The error description value change to One as expected in the log.
</statusCode><errorCode>1</errorCode><errorDescription>One</errorDescription>
But when the response is sent back to the client, it still null value.
{"serviceRequestID": "12345","statusCode": 1,"errorCode": "1", "errorDescription": "","addressID": 1.23456794E9,"source": "consumer name", "requestId": "910514"}

Answer 1

Try this;
private void ResponseLogging(MessageContext mc) throws OMException{
try {
String errorCode = mc.getEnvelope().getBody().getFirstElement().getFirstChildWithName(new QName("jsonObject")).getFirstChildWithName(new QName("errorCode")).getText();
String errorDescription = null;
if(errorCode.equals("1")) {
errorDescription = "One";
}else if(errorCode.equals("2")) {
errorDescription = "Two";
}else if(errorCode.equals("3")) {
errorDescription = "Three";
}
mc.getEnvelope().getBody().getFirstElement().getFirstChildWithName(new QName("jsonObject")).getFirstChildWithName(new QName("errorDescription")).setText(errorDescription);
} catch (Exception e) {
log.error(e.getMessage(), e);
}
}