For Datamapper we have to give an option to do data mapping starting from xml payload (that user may already have). For this we need to to create avro schema from xml instance. Possible approaches may be 1. Generate xml schema(XSD) from xml and then create avro schema from XSD. 2. Directly generate avro schema by looking at xml (we have to code from the scratch)
I believe that going with option 1 would be good, so that we can handle the use case of mapping from xml-schema. Also there are some libraries[1] and online tools[2,3] available to generate XSD from xml with some limitations. (eg represent leaf values as strings). Also from bit of research i found that there are several types of XSD representation (Venetian Blind Design, Russian Doll Design, Salami Slice Design) and we may need to decide on which would best fit (or easy to convert to) avro schema. If someone has done similar xml<->XSD conversion, please share your ideas and suggestions. Thanks [1] http://xmlbeans.apache.org/docs/2.0.0/guide/tools.html#xsd2inst [2] https://devutilsonline.com/xsd-xml/generate-xsd-from-xml [3]http://www.freeformatter.com/xsd-generator.html -- *Susinda Perera* Software Engineer B.Sc.(Eng), M.Sc(Computer Science), AMIE(SL) Mobile:(+94)716049075 Blog: susinda.blogspot.com WSO2 Inc. http://wso2.com/ Tel : 94 11 214 5345 Fax :94 11 2145300
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