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muledataweavemule-esb

Lookup in Dataweave Mule

I am doing a lookup in dataweave

lookup("myflow",$)

I am passing entire xml to the flow called. The data received in the flow is of type 'java.util.LinkedHashMap'. I am trying to put a ForEach processor and specify the xpath3 in collection. This get's errored out with message:

Root Exception stack trace: java.lang.IllegalArgumentException: Could not transform input of type 'java.util.LinkedHashMap' to a supported one. Supported types are 'SimpleDataType{type=org.w3c.dom.Document, mimeType='/', encoding='null'},SimpleDataType{type=org.w3c.dom.Node, mimeType='/', encoding='null'}`

How should i do this as i need to iterate over the xml received and produce string output.

Solution

  • The above scnario is not possible. In this case if we pass the entire xml then its type will be changed. A better approach while using lookup in dataweave is to pass simple values such as string, integer etc..