Mule if flowVar used in Dataweave Transformer payload converted to Map -


i have issue mule dataweave transformer getting error, occurs if :-

  1. an enricher present wrapping json:json-to-object-transformer

     <enricher target="#[flowvars.myvar]" doc:name="message enricher">      <json:json-to-object-transformer returnclass="java.util.hashmap" doc:name="json object"/> </enricher>

  2. a flowvar involved in dataweave transformer

the exception occurs on 2nd dataweave :-

error 2017-08-15 09:09:52,239 [amqpreceiver.02] org.mule.exception.rollbackmessagingexceptionstrategy:  ******************************************************************************** message               : exception while executing:  {bar=1, foo=0}  ^ unexpected character 'b' @ index 1 (line 1, position 2), expected '"' payload               : com.mulesoft.weave.reader.bytearrayseekablestream@39e7a0d3 element               : /subscribe-to-changeflow4/processors/4 @ voa-009-mule-authorisation-search-api:test3.xml:58 (transform message) element xml           : <dw:transform-message doc:name="transform message">                         <dw:input-payload mimetype="application/json"></dw:input-payload>                         <dw:set-payload>%dw 1.0%output application/json---{field1: payload.foo,field2: payload.bar,field3: flowvars.myflowvar}</dw:set-payload>                         </dw:transform-message> -------------------------------------------------------------------------------- root exception stack trace: com.mulesoft.weave.reader.json.jsonreaderexception: unexpected character 'b' @ index 1 (line 1, position 2), expected '"'     @ com.mulesoft.weave.reader.json.jsontokenizer.fail(jsontokenizer.scala:193)     @ com.mulesoft.weave.reader.json.jsontokenizer.require(jsontokenizer.scala:190)     @ com.mulesoft.weave.reader.json.jsontokenizer.readstring(jsontokenizer.scala:74)     @ com.mulesoft.weave.reader.json.jsontokenizer.readobjectmembers(jsontokenizer.scala:146)     @ com.mulesoft.weave.reader.json.jsontokenizer.com$mulesoft$weave$reader$json$jsontokenizer$$readobject(jsontokenizer.scala:140)     @ com.mulesoft.weave.reader.json.jsontokenizer$$anonfun$readvalue$1.apply$mcv$sp(jsontokenizer.scala:37)

what happens flowvar added 2nd data weave, payload seems show map rather json.

  • the enricher nested json-to-object-transformer required take payload , allow json accessed. if enricher removed works fine
  • the seek(0) required reset stream after json-to-object-transformer answered in last question
  • if flowvar removed 2nd dataweave works fine

test case

  <flow name="subscribe-to-changeflow4" processingstrategy="synchronous">          <amqp:inbound-endpoint numberofchannels="1" ref="authorisationchangequeuedef4" responsetimeout="10000" doc:name="authorisation-change-consumer" />          <dw:transform-message doc:name="transform message">         <dw:set-payload> <![cdata[%dw 1.0 %output application/json --- {     foo:0,     bar:1 }]]>         </dw:set-payload>     </dw:transform-message>      <enricher target="#[flowvars.myvar]" doc:name="message enricher">          <json:json-to-object-transformer returnclass="java.util.hashmap" doc:name="json object"/>     </enricher>      <expression-component doc:name="expression">         <![cdata[payload.seek(0);]]>     </expression-component>      <set-variable variablename="myflowvar" value="1234" doc:name="variable" />      <dw:transform-message doc:name="transform message">         <dw:input-payload mimetype="application/json"/>         <dw:set-payload> <![cdata[%dw 1.0 %output application/json --- {        field1: payload.foo,     field2: payload.bar,     field3: flowvars.myflowvar } ]]>          </dw:set-payload>     </dw:transform-message>      <logger  level="info" message="#[message.payloadas(java.lang.string)]" doc:name="logger "/>       </flow>

this bug in mule , can raise in mule jira

which mule runtime version using?

i tested locally , found issue mule runtime 3.8.0 , mule runtime 3.8.1: enter image description here

but worked fine mule runtime 3.8.2 , mule 3.8.5
tested mule 3.7.3 locally , worked fine below:-

enter image description here


Comments

Post a Comment

Popular posts from this blog

python Tkinter Capturing keyboard events save as one single string -

is possible store keyboard events 1 string? code below stores 1 char , prints it. card reader or bar code reader, contains collection of character/ string not 1 character @ time. goal save char pressed text variable. from tkinter import * root = tk() def key(event): text= event.char text+= event.char print ("pressed", text) def callback(event): frame.focus_set() print ("clicked at", event.x, event.y) frame = frame(root, width=100, height=100) frame.bind("<key>", key) frame.bind("<button-1>", callback) frame.pack() root.mainloop() currently, creating text variable , everytime key() function gets called, , text stores last character typed. you can define text module level variable , , use module level text inside key function - text = '' def key(event): global text text+= event.char print("pressed", text)
Read more

android - InAppBilling registering BroadcastReceiver in AndroidManifest -

i'm implementing inapp billing in android app. works well, however, i'm trying decouple broadcast receiver activity manifest. suggestion in android's trivialdrive sample: // important: dynamically register broadcast messages updated purchases. // register receiver here instead of <receiver> in manifest // because call getpurchases() @ startup, therefore can ignore // broadcasts sent while app isn't running. // note: registering listener in activity bad idea, done here // because sample. regardless, receiver must registered after // iabhelper setup, before first call getpurchases(). currently there's class extends broadcastreceiver : public class iabbroadcastreceiver extends broadcastreceiver { /** * intent action receiver should filter for. */ public static final string action = "com.android.vending.billing.purchases_updated"; private final iabbroadcastlistener mlistener; public iabbroadcastreceiver(iabbroadcastlistener listener) { m
Read more

javascript - Z-index in d3.js -

i have map , when hover effect on region of map below yellow line , circle, last ones disappear. how can solve problem? http://jsfiddle.net/ot21n9qx/ var arc = g.append("path") .style("fill", "none") .style("stroke", "yellow") .style("stroke-width", 2) .attr("d", "m" + pathorigin[0] + "," + pathorigin[1] + " q" + svgpoint[0] + "," + pathorigin[1] + " " + svgpoint[0] + "," + svgpoint[1]); var circlesize = d3.scale.linear() .domain([0, 0.5, 1]) .range([4, 10, 4]); svg not have z order draws objects in order created. need create path , circle after create highlight regions. here forked fiddle: http://jsfiddle.net/o00fzgaf/1/
Read more