New packers take unpacked objects and produce HltPackedDataBuffers (MC packers unchanged, old packers fully removed from configuration)
New HltPackedBufferWriter takes a list of DataBuffers and writes out the raw banks/event (This replaces HltPackedDataWriter)
New HltPackedBufferDecoder takes rawbanks/event and produces HltPackedDataBuffers to the requested locations
New unpackers take HltPackedDataBuffers and produce unpacked objects (MC unpackers unchanged, old unpackers are still used for old dsts.)
Un/PackParticlesAndVertices algorithms are removed. So objects in TES are not automatically packed/writen/decoded/unpacked.
Main changes in configuration:
Packers/Unpackers/Decoder/Writer are all functional so all input and output locations needed to be given [They are given as DataObjectRead(Write)Handles. See #180 for explanation.]
For packing/writing, locations are picked up from reco objects list and requested-line dependencies. For each location, object type in that location is also registered to ANNSvc json file. Only known object types in PyConf/object_types are packed.
For decoding/unpacking, we don't know the data dependencies at the moment. So we take all registered packed locations in requested stream. They are checked against registered object types to decide which unpacker to use.
PersistRecoConf is extended to all object types not only reconstruction objects. More than one location can be given for a type. reconstruction_objects list should be modified to benefit from this. Moore#248
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