WSO2 ESB DataMapper Mediator

Question

Ich erhalte den folgenden Fehler, wenn ich versuche, eine JSON-Eingabe mithilfe des WSO2 ESB DataMapper Mediators in ein anderes JSON-Format zu transformieren.

Hier versuche ich eine sehr grundlegende Ebene Transformation & zu schätzen, wenn jemand mir helfen könnte, das Problem herauszufinden.

[2016-12-22 10:20:15,674] ERROR - ResvsAPI DataMapper mediator : mapping failed 
Error while reading input stream. Script engine unable to execute the script javax.script.ScriptException: ReferenceError: "map_S_root_S_root" is not defined in <eval> at line number 1 
    at org.wso2.carbon.mediator.datamapper.engine.input.readers.JSONInputReader.read(JSONInputReader.java:62) 
    at org.wso2.carbon.mediator.datamapper.engine.input.InputBuilder.buildInputModel(InputBuilder.java:59) 
    at org.wso2.carbon.mediator.datamapper.engine.core.mapper.MappingHandler.doMap(MappingHandler.java:67) 
    at org.wso2.carbon.mediator.datamapper.DataMapperMediator.transform(DataMapperMediator.java:306) 
    at org.wso2.carbon.mediator.datamapper.DataMapperMediator.mediate(DataMapperMediator.java:256) 
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:97) 
    at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractListMediator.java:59) 
    at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMediator.java:158) 
    at org.apache.synapse.rest.Resource.process(Resource.java:343) 
    at org.apache.synapse.rest.API.process(API.java:399) 
    at org.apache.synapse.rest.RESTRequestHandler.apiProcess(RESTRequestHandler.java:123) 
    at org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:101) 
    at org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:69) 
    at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:304) 
    at org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:75) 
    at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180) 
    at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEnclosingRESTHandler(ServerWorker.java:325) 
    at org.apache.synapse.transport.passthru.ServerWorker.processEntityEnclosingRequest(ServerWorker.java:371) 
    at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:151) 
    at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172) 
    at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) 
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) 
    at java.lang.Thread.run(Unknown Source) 

Answer 1

Dies kann auf einen Fehler in der Konfiguration der Eingabe-Ausgabe-Zuordnung zurückzuführen sein. Können Sie einen Screenshot der Mapping-UI-Ansicht und den Inhalt der Mapping-Konfigurationsdatei (.dmc-Datei) bereitstellen? * Sie finden die Mapping-Konfiguration auf der Registerkarte Registry Viewer in der WSO2 ESB Management Console.