forked from TrueCloudLab/frostfs-node
47 lines
1.7 KiB
Go
47 lines
1.7 KiB
Go
package loadroute
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import (
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loadcontroller "github.com/nspcc-dev/neofs-node/pkg/services/container/announcement/load/controller"
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"github.com/nspcc-dev/neofs-sdk-go/container"
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)
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// ServerInfo describes a set of
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// characteristics of a point in a route.
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type ServerInfo interface {
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// PublicKey returns public key of the node
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// from the route in a binary representation.
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PublicKey() []byte
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// Iterates over network addresses of the node
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// in the route. Breaks iterating on true return
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// of the handler.
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IterateAddresses(func(string) bool)
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// Returns number of server's network addresses.
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NumberOfAddresses() int
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}
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// Builder groups methods to route values in the network.
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type Builder interface {
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// NextStage must return next group of route points for the value a
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// based on the passed route.
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//
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// Empty passed list means being at the starting point of the route.
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//
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// Must return empty list and no error if the endpoint of the route is reached.
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// If there are more than one point to go and the last passed point is included
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// in that list (means that point is the last point in one of the route groups),
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// returned route must contain nil point that should be interpreted as signal to,
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// among sending to other route points, save the announcement in that point.
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NextStage(a container.SizeEstimation, passed []ServerInfo) ([]ServerInfo, error)
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}
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// RemoteWriterProvider describes the component
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// for sending values to a fixed route point.
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type RemoteWriterProvider interface {
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// InitRemote must return WriterProvider to the route point
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// corresponding to info.
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//
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// Nil info matches the end of the route.
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InitRemote(info ServerInfo) (loadcontroller.WriterProvider, error)
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}
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