[#460] reputation/local: Declare Managers
Declare interfaces for building list of managers of certain peer in certain epoch. Implement `Builder` struct that aggregates fields that are necessary for building list of managers. Signed-off-by: Pavel Karpy <carpawell@nspcc.ru>
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91825a0162
commit
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5 changed files with 103 additions and 3 deletions
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@ -65,11 +65,13 @@ func (r *Router) InitWriter(ctx reputationcontroller.Context) (reputationcontrol
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}, nil
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}, nil
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}
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}
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func (w *trustWriter) Write(a reputation.Trust) error {
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func (w *trustWriter) Write(t reputation.Trust) error {
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w.routeMtx.Lock()
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w.routeMtx.Lock()
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defer w.routeMtx.Unlock()
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defer w.routeMtx.Unlock()
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route, err := w.router.routeBuilder.NextStage(w.ctx.Epoch(), w.ctx.passedRoute)
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localPeerID := reputation.PeerIDFromBytes(w.router.localSrvInfo.PublicKey())
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route, err := w.router.routeBuilder.NextStage(w.ctx.Epoch(), localPeerID, w.ctx.passedRoute)
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if err != nil {
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if err != nil {
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return err
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return err
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} else if len(route) == 0 {
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} else if len(route) == 0 {
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@ -106,7 +108,7 @@ func (w *trustWriter) Write(a reputation.Trust) error {
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w.mServers[endpoint] = remoteWriter
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w.mServers[endpoint] = remoteWriter
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}
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}
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err := remoteWriter.Write(a)
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err := remoteWriter.Write(t)
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if err != nil {
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if err != nil {
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w.router.log.Debug("could not write the value",
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w.router.log.Debug("could not write the value",
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zap.String("error", err.Error()),
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zap.String("error", err.Error()),
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@ -1,6 +1,7 @@
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package reputationroute
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package reputationroute
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import (
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import (
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"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
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reputationcontroller "github.com/nspcc-dev/neofs-node/pkg/services/reputation/local/controller"
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reputationcontroller "github.com/nspcc-dev/neofs-node/pkg/services/reputation/local/controller"
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)
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)
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@ -18,6 +19,18 @@ type ServerInfo interface {
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Address() string
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Address() string
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}
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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
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// for passed epoch and PeerID of the current route point.
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// Implementation must take into account already passed route points.
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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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NextStage(epoch uint64, p reputation.PeerID, passed []ServerInfo) ([]ServerInfo, error)
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}
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// RemoteWriterProvider describes the component
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// RemoteWriterProvider describes the component
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// for sending values to a fixed route point.
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// for sending values to a fixed route point.
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type RemoteWriterProvider interface {
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type RemoteWriterProvider interface {
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48
pkg/services/reputation/local/route/managers/builder.go
Normal file
48
pkg/services/reputation/local/route/managers/builder.go
Normal file
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@ -0,0 +1,48 @@
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package managers
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import "fmt"
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// Prm groups the required parameters of the Builder's constructor.
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//
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// All values must comply with the requirements imposed on them.
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// Passing incorrect parameter values will result in constructor
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// failure (error or panic depending on the implementation).
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type Prm struct {
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// Manager builder for current node.
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//
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// Must not be nil.
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ManagerBuilder ManagerBuilder
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}
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// Builder represents component that routes node to its managers.
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//
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// For correct operation, Builder must be created using
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// the constructor (New) based on the required parameters
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// and optional components. After successful creation,
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// the Builder is immediately ready to work through API.
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type Builder struct {
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managerBuilder ManagerBuilder
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}
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const invalidPrmValFmt = "invalid parameter %s (%T):%v"
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func panicOnPrmValue(n string, v interface{}) {
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panic(fmt.Sprintf(invalidPrmValFmt, n, v, v))
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}
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// New creates a new instance of the Builder.
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//
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// Panics if at least one value of the parameters is invalid.
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//
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// The created Builder does not require additional
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// initialization and is completely ready for work.
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func New(prm Prm) *Builder {
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switch {
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case prm.ManagerBuilder == nil:
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panicOnPrmValue("ManagerBuilder", prm.ManagerBuilder)
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}
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return &Builder{
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managerBuilder: prm.ManagerBuilder,
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}
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}
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23
pkg/services/reputation/local/route/managers/calls.go
Normal file
23
pkg/services/reputation/local/route/managers/calls.go
Normal file
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@ -0,0 +1,23 @@
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package managers
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import (
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"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
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reputationroute "github.com/nspcc-dev/neofs-node/pkg/services/reputation/local/route"
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"github.com/pkg/errors"
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)
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// NextStage builds Manager list for node and returns it directly.
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//
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// If passed route has more than one point, then endpoint of the route is reached.
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func (b *Builder) NextStage(epoch uint64, p reputation.PeerID, passed []reputationroute.ServerInfo) ([]reputationroute.ServerInfo, error) {
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if len(passed) > 1 {
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return nil, nil
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}
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route, err := b.managerBuilder.BuildManagers(epoch, p)
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if err != nil {
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return nil, errors.Wrapf(err, "could not build managers for epoch: %d", epoch)
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}
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return route, nil
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}
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14
pkg/services/reputation/local/route/managers/deps.go
Normal file
14
pkg/services/reputation/local/route/managers/deps.go
Normal file
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@ -0,0 +1,14 @@
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package managers
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import (
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"github.com/nspcc-dev/neofs-node/pkg/services/reputation"
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reputationroute "github.com/nspcc-dev/neofs-node/pkg/services/reputation/local/route"
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)
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// ManagerBuilder defines an interface for providing a list
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// of Managers for specific epoch. Implementation depends on trust value.
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type ManagerBuilder interface {
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// BuildManagers must compose list of managers. It depends on
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// particular epoch and PeerID of the current route point.
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BuildManagers(epoch uint64, p reputation.PeerID) ([]reputationroute.ServerInfo, error)
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}
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