forked from TrueCloudLab/frostfs-node
81 lines
2 KiB
Go
81 lines
2 KiB
Go
package router
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import (
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"fmt"
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"github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
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"github.com/nspcc-dev/neofs-node/pkg/util/logger"
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)
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// Prm groups the required parameters of the Router'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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// Characteristics of the local node's server.
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//
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// Must not be nil.
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LocalServerInfo common.ServerInfo
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// Component for sending values to a fixed route point.
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//
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// Must not be nil.
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RemoteWriterProvider RemoteWriterProvider
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// Route planner.
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//
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// Must not be nil.
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Builder Builder
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}
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// Router represents component responsible for routing
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// local trust values over the network.
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//
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// For each fixed pair (node peer, epoch) there is a
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// single value route on the network. Router provides the
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// interface for writing values to the next point of the route.
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//
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// For correct operation, Router 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 Router is immediately ready to work through API.
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type Router struct {
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log *logger.Logger
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remoteProvider RemoteWriterProvider
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routeBuilder Builder
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localSrvInfo common.ServerInfo
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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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func New(prm Prm, opts ...Option) *Router {
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switch {
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case prm.RemoteWriterProvider == nil:
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panicOnPrmValue("RemoteWriterProvider", prm.RemoteWriterProvider)
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case prm.Builder == nil:
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panicOnPrmValue("Builder", prm.Builder)
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case prm.LocalServerInfo == nil:
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panicOnPrmValue("LocalServerInfo", prm.LocalServerInfo)
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}
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o := defaultOpts()
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for i := range opts {
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opts[i](o)
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}
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return &Router{
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log: o.log,
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remoteProvider: prm.RemoteWriterProvider,
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routeBuilder: prm.Builder,
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localSrvInfo: prm.LocalServerInfo,
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}
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}
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