Hi John, As Harshan mentioned in above you can use a PayloadFactory Mediator[1] to create the custom payload and the you can invoke sequence calling the sequence you need to invoke. If you cannot achieve it using any inbuilt mediator ships with ESB(payloadFactory, enrich, xslt) you can write a class mediator and can call required sequence from that class mediator. You can refer below CustomExampleMediator class[2] to how you can create a custom payload and invoke a sequence from a class mediator. I’ve added comments you to understand the code.
*[1]. **https://docs.wso2.com/display/ESB481/PayloadFactory+Mediator* <https://docs.wso2.com/display/ESB481/PayloadFactory+Mediator> *[2]. * *public class *CustomExampleMediator *extends *AbstractMediator { *private *String *sequenceKey*; *// The sequence to be called when When Custom Payload Creation Completed **public boolean *mediate(MessageContext context) { *//Get the axis2MessageContext synapse message context *org.apache.axis2.context.MessageContext axis2MessageContext = ((Axis2MessageContext) context) .getAxis2MessageContext(); *//Get Current Envelop *SOAPEnvelope axisMsgEnvelope = axis2MessageContext.getEnvelope(); *// Sequence you need to invoke *Mediator sequenceMediatorToInvoke = *null*; *if *(*sequenceKey *!= *null*) { sequenceMediatorToInvoke = context .getSequence(*sequenceKey*); } *else *{ *if *(*log*.isDebugEnabled()) { *log*.debug(*"Sequence Key not specified."*); } } *//Create a Custom Payload *OMElement customPayloadElement = *null*; *//Your Custom Payload creation logic should be implemented here. //Create the SOAPEnvelope and set it to the context. **try *{ context.setEnvelope(createSOAPEnvelope(customPayloadElement)); } *catch *(AxisFault e) { e.printStackTrace(); } sequenceMediatorToInvoke.mediate(context); } *return true*; } *//method to create the SOAPEnvelope and append the payload as body **private *SOAPEnvelope createSOAPEnvelope(OMElement documentElement) { SOAPEnvelope envelope; SOAPFactory soapFactory = OMAbstractFactory.getSOAP11Factory(); envelope = soapFactory.getDefaultEnvelope(); *if *(documentElement != *null*) { envelope.getBody().addChild(documentElement); } *return *envelope; } } Thanks. On Wed, Jan 13, 2016 at 12:00 PM, Harshan Liyanage <[email protected]> wrote: > Hi John, > > The easiest way to achieve this would be to write a class mediator [1] and > then using it in the synapse configuration. You can use a PayloadFactory > Mediator [2] to create the custom payload. So there will be no need for > creating the custom payload and invoking a sequence from inside the custom > mediator. > > [1]. https://docs.wso2.com/display/ESB490/Class+Mediator > [2]. https://docs.wso2.com/display/ESB490/PayloadFactory+Mediator > > Thanks, > Harshan > > Harshan Liyanage > Software Engineer > Mobile: *+94724423048* > Email: [email protected] > Blog : http://harshanliyanage.blogspot.com/ > *WSO2, Inc. :** wso2.com <http://wso2.com/>* > lean.enterprise.middleware. > > On Wed, Jan 13, 2016 at 1:26 AM, John Q <[email protected]> wrote: > >> Hello, >> Can any body tell me how can I create a custom payload and invoke a >> sequence from a custom mediator? >> >> thanks, >> john >> >> _______________________________________________ >> Dev mailing list >> [email protected] >> http://wso2.org/cgi-bin/mailman/listinfo/dev >> >> > > _______________________________________________ > Dev mailing list > [email protected] > http://wso2.org/cgi-bin/mailman/listinfo/dev > > -- Vijitha Ekanayake Software Engineer*, *WSO2, Inc.; http://wso2.com/ Mobile : +94 777 24 73 39 | +94 718 74 44 08 lean.enterprise.middleware
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