Avoid dumping of large payloads in LogMediator
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                 Key: SYNAPSE-279
                 URL: https://issues.apache.org/jira/browse/SYNAPSE-279
             Project: Synapse
          Issue Type: Bug
          Components: Core
    Affects Versions: NIGHTLY
            Reporter: Andreas Veithen
            Assignee: Andreas Veithen
            Priority: Minor
             Fix For: 1.3


Text payloads (typically resulting from an XSLT transformation) are represented 
in Synapse using OMSourcedElement nodes backed by TextFileDataSource objects. 
Nodes of this type can potentially contain a large amount of data. When a 
message containing this kind of payload hits the LogMediator in 'full' mode, 
the entire content will be dumped, potentially causing problems for large 
payloads, in particular because the entire message is transformed to a String 
object. In this case, LogMediator should skip the text content in some way.

A proper solution would be to use the mechanism described in WSCOMMONS-287 and 
let the LogMediator use an OMOutputFormat object with a custom property that 
would instruct TextFileDataSource to skip the serialization of the text 
content. However, currently the implementation of this solution is blocked by 
WSCOMMONS-335.

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