Do not output duplicate errors, truncate long cell paths

Author: eduard93

MDX2JSON/AbstractREST.cls.xml

@@ -254,7 +254,10 @@ Issue an '500' error and give some indication as to what occurred.<br>
 	// we are expecting status
 	#; Set the response Http status
 	Set %response.Status="500 Internal Server Error"
-
+	
+	#; Skip duplicate calls 
+	Quit:$isObject(pStatus) $$$OK
+	
 	#; Return a helpful error string
 	Write "{""Error"":"_$$$ZENJSSTR($System.Status.GetErrorText(pStatus,%session.Language))_"}"
 

MDX2JSON/ResultSet.cls.xml

@@ -155,9 +155,14 @@ Returns array of Axes</Description>
 	set cell.total = $LG(tNode,8) //COUNT,AVG function
 	set cell.type = $LG(tNode,1) // mbr,cmbr,lit,exp
 	set cell.valueID = $LG(tNode,6) // id in mdx dimension for mbr, path for cmbr
-	set cell.path = ##class(%DeepSee.Query.Engine).%GetSpecForAxisNode(CubeName, QueryKey, AxisNumber, Node) // MDX cell path
 	set cell.title = $LG(tNode,23)
 	
+	try {
+		set cell.path = ##class(%DeepSee.Query.Engine).%GetSpecForAxisNode(CubeName, QueryKey, AxisNumber, Node) // MDX cell path
+	} catch ex {
+		set cell.path = "path too long"		
+	}
+	
 	set cell.headerStyle = $LG(tNode,19)
 	set cell.cellStyle = $LG(tNode,18)
 	

MDX2JSON/Tests.cls.xml

@@ -8,12 +8,12 @@ Classes with support methods for testing MDX2JSON</Description>
 
 <Parameter name="LastCommit">
 <Type>%String</Type>
-<Default>3bb66d3e2bc6b82d9d6570d9d4107a35dc1878f6</Default>
+<Default>3037ee3022e6a49a2cc5003c5e0c8313732b6aef</Default>
 </Parameter>
 
 <Parameter name="LastCommitTS">
 <Type>%TimeStamp</Type>
-<Default>2018-10-17 12:20:48.137</Default>
+<Default>2020-04-01 14:52:39.840</Default>
 </Parameter>
 
 <Method name="ProjectLength">