forked from TrueCloudLab/frostfs-node
47 lines
1.2 KiB
Go
47 lines
1.2 KiB
Go
package object
|
|
|
|
import (
|
|
"context"
|
|
)
|
|
|
|
type (
|
|
// requestPostProcessor is an interface of RPC call outcome handler.
|
|
requestPostProcessor interface {
|
|
// Performs actions based on the outcome of request processing.
|
|
postProcess(context.Context, serviceRequest, error)
|
|
}
|
|
|
|
// complexPostProcessor is an implementation of requestPostProcessor interface.
|
|
complexPostProcessor struct {
|
|
// Sequence of requestPostProcessor instances.
|
|
list []requestPostProcessor
|
|
}
|
|
)
|
|
|
|
var _ requestPostProcessor = (*complexPostProcessor)(nil)
|
|
|
|
// requestPostProcessor method implementation.
|
|
//
|
|
// Panics with pmEmptyServiceRequest on nil request argument.
|
|
//
|
|
// Passes request through the sequence of requestPostProcessor instances.
|
|
//
|
|
// Warn: adding instance to list itself provoke endless recursion.
|
|
func (s *complexPostProcessor) postProcess(ctx context.Context, req serviceRequest, e error) {
|
|
if req == nil {
|
|
panic(pmEmptyServiceRequest)
|
|
}
|
|
|
|
for i := range s.list {
|
|
s.list[i].postProcess(ctx, req, e)
|
|
}
|
|
}
|
|
|
|
// Creates requestPostProcessor based on Params.
|
|
//
|
|
// Uses complexPostProcessor instance as a result implementation.
|
|
func newPostProcessor() requestPostProcessor {
|
|
return &complexPostProcessor{
|
|
list: []requestPostProcessor{},
|
|
}
|
|
}
|