[jira] Created: (UIMA-1040) Modify dd2spring to handle UIMA-AS Aggregate Cas Multipliers

[Jerry Cwiklik (JIRA)]

Modify dd2spring to handle UIMA-AS Aggregate Cas Multipliers
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                 Key: UIMA-1040
                 URL: https://issues.apache.org/jira/browse/UIMA-1040
             Project: UIMA
          Issue Type: Bug
          Components: Async Scaleout
            Reporter: Jerry Cwiklik
            Priority: Minor
             Fix For: 2.2.2AS


dd2spring determines if a component is a Cas Multiplier by checking the 
component's descriptor outputsNewCASes property. If the component is a CM, the 
dd2spring generates spring xml artifacts to create a special cas pool to be 
used to create new CASes. For a Primitive CM, this is necessary. As the 
Primitive CM actually creates new CASes from an input CAS it needs the special 
cas pool. If the CM is an Aggregate, this special cas pool is not necessary. 
The aggregate CM *outputs* new CASes, but it doesnt create them. It uses a 
shadow CAS Pool (one per remote CM delegate) to deserialize CASes instead. The 
current dd2spring code generates a warning when parsing a deployment descriptor 
containing an aggregate CM:

      *** WARN: line-number: 34 deployment descriptor for analysisEngine: 
<key>Queue is for a CAS Multiplier (or Collection Reader wrapped as a CAS 
Multiplier).  However, the &lt;casMultiplier&gt; element is missing. Defaulting 
to a poolSize of 1 for this case.

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