Generating self links, especially for lists, is inefficient. Replace
use of net.URL.String() with direct encoding that reduces number of
allocations. Switch from calling meta.ExtractList|SetList to a function
that iterates over each object in the list.
In steady state for nodes performing frequently small get/list
operations, and for larger LISTs significantly reduces CPU and
allocations.
A NegotiatedSerializer is passed into the API installer (and
ParameterCodec, which abstracts conversion of query params) that can be
used to negotiate client/server request/response serialization. All
error paths are now negotiation aware, and are at least minimally
version aware.
Watch is specially coded to only allow application/json - a follow up
change will convert it to use negotiation.
Ensure the swagger scheme will include supported serializations - this
now includes application/yaml as a negotiated option.
The pending codec -> conversion split changes the signature of
Encode and Decode to be more complicated. Create a stub helper
with the exact semantics of today and do the simple mechanical
refactor here to reduce the cost of that change.
PUT allows an object to be created (http 201). This allows REST code to
indicate an object has been created and clients to react to it.
APIServer now deals with <-chan RESTResult instead of <-chan runtime.Object,
allowing more data to be passed through.
