frostfs-node/pkg/services/reputation/eigentrust/routes/builder.go

60 lines
1.6 KiB
Go
Raw Normal View History

package routes
import (
"fmt"
"github.com/nspcc-dev/neofs-node/pkg/services/reputation/common"
"github.com/nspcc-dev/neofs-node/pkg/util/logger"
)
// Prm groups the required parameters of the Builder's constructor.
//
// All values must comply with the requirements imposed on them.
// Passing incorrect parameter values will result in constructor
// failure (error or panic depending on the implementation).
type Prm struct {
// Manager builder for current node.
//
// Must not be nil.
ManagerBuilder common.ManagerBuilder
Log *logger.Logger
}
// Builder represents component that routes node to its managers.
//
// For correct operation, Builder must be created using
// the constructor (New) based on the required parameters
// and optional components. After successful creation,
// the Builder is immediately ready to work through API.
type Builder struct {
managerBuilder common.ManagerBuilder
log *logger.Logger
}
const invalidPrmValFmt = "invalid parameter %s (%T):%v"
func panicOnPrmValue(n string, v interface{}) {
panic(fmt.Sprintf(invalidPrmValFmt, n, v, v))
}
// New creates a new instance of the Builder.
//
// Panics if at least one value of the parameters is invalid.
//
// The created Builder does not require additional
// initialization and is completely ready for work.
func New(prm Prm) *Builder {
switch {
case prm.ManagerBuilder == nil:
panicOnPrmValue("ManagerBuilder", prm.ManagerBuilder)
case prm.Log == nil:
panicOnPrmValue("Logger", prm.Log)
}
return &Builder{
managerBuilder: prm.ManagerBuilder,
log: prm.Log,
}
}