Interfederation

[Steven Carmody <>]

As promised, here's the current processing pipeline that is applied to 
the InCommon metadata file by the PILOT aggregator instance currently 
running on one of my test machines.

Note that Ian's toolkit contains lots of ways to slice and dice and 
check files and entities that are being imported; as a starter, I just 
used one of his "standard" tools without thinking much at all about 
"what checking should REALLY be done".

Consequently, while this note describes what is being done today, the 
real reason for sending this note is to trigger a discussion about what 
we think SHOULD be done.

And, as Tom noted elsewhere, this pilot instance isn't currently signing 
the file that it produces. IMHO signing this particular file currently 
has no meaning.

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<ref bean="check_validUntil"/> -- Check that an aggregate has a 
validUntil instant specified, and that it has not yet expired.  Does not 
put an upper bound on validUntil intervals.

<ref bean="us_incommon_checkSignature"/> --  Check InCommon signing 
signature.

<ref bean="errorTerminatingFilter"/> -- A pipeline stage that checks for 
any errors, and then announces and filters any encountered.

<ref bean="disassemble"/> - disassembles an aggregate into a set of 
indvidual entities

<ref bean="us_incommon_check_regauth"/> -- Any registrationAuthority 
already present on an entity in this channel must match the known 
registration authority value.

<ref bean="standardImportActions"/> -- Standard actions performed on any 
metadata import channel.  Assumes that the collection has been acquired, 
had its signature validated, and disassembled into individual entities.