forked from TrueCloudLab/distribution
75 lines
2.2 KiB
Go
75 lines
2.2 KiB
Go
/*
|
|
*
|
|
* Copyright 2022 gRPC authors.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*
|
|
*/
|
|
|
|
package channelz
|
|
|
|
import "fmt"
|
|
|
|
// Identifier is an opaque identifier which uniquely identifies an entity in the
|
|
// channelz database.
|
|
type Identifier struct {
|
|
typ RefChannelType
|
|
id int64
|
|
str string
|
|
pid *Identifier
|
|
}
|
|
|
|
// Type returns the entity type corresponding to id.
|
|
func (id *Identifier) Type() RefChannelType {
|
|
return id.typ
|
|
}
|
|
|
|
// Int returns the integer identifier corresponding to id.
|
|
func (id *Identifier) Int() int64 {
|
|
return id.id
|
|
}
|
|
|
|
// String returns a string representation of the entity corresponding to id.
|
|
//
|
|
// This includes some information about the parent as well. Examples:
|
|
// Top-level channel: [Channel #channel-number]
|
|
// Nested channel: [Channel #parent-channel-number Channel #channel-number]
|
|
// Sub channel: [Channel #parent-channel SubChannel #subchannel-number]
|
|
func (id *Identifier) String() string {
|
|
return id.str
|
|
}
|
|
|
|
// Equal returns true if other is the same as id.
|
|
func (id *Identifier) Equal(other *Identifier) bool {
|
|
if (id != nil) != (other != nil) {
|
|
return false
|
|
}
|
|
if id == nil && other == nil {
|
|
return true
|
|
}
|
|
return id.typ == other.typ && id.id == other.id && id.pid == other.pid
|
|
}
|
|
|
|
// NewIdentifierForTesting returns a new opaque identifier to be used only for
|
|
// testing purposes.
|
|
func NewIdentifierForTesting(typ RefChannelType, id int64, pid *Identifier) *Identifier {
|
|
return newIdentifer(typ, id, pid)
|
|
}
|
|
|
|
func newIdentifer(typ RefChannelType, id int64, pid *Identifier) *Identifier {
|
|
str := fmt.Sprintf("%s #%d", typ, id)
|
|
if pid != nil {
|
|
str = fmt.Sprintf("%s %s", pid, str)
|
|
}
|
|
return &Identifier{typ: typ, id: id, str: str, pid: pid}
|
|
}
|