github.com/inklabsfoundation/inkchain@v0.17.1-0.20181025012015-c3cef8062f19/common/config/root.go (about) 1 /* 2 Copyright IBM Corp. 2017 All Rights Reserved. 3 4 Licensed under the Apache License, Version 2.0 (the "License"); 5 you may not use this file except in compliance with the License. 6 You may obtain a copy of the License at 7 8 http://www.apache.org/licenses/LICENSE-2.0 9 10 Unless required by applicable law or agreed to in writing, software 11 distributed under the License is distributed on an "AS IS" BASIS, 12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 See the License for the specific language governing permissions and 14 limitations under the License. 15 */ 16 17 package config 18 19 import ( 20 "fmt" 21 22 "github.com/inklabsfoundation/inkchain/common/config/msp" 23 24 "github.com/golang/protobuf/proto" 25 ) 26 27 // Root acts as the object which anchors the rest of the config 28 // Note, yes, this is a stuttering name, but, the intent is to move 29 // this up one level at the end of refactoring 30 type Root struct { 31 channel *ChannelGroup 32 mspConfigHandler *msp.MSPConfigHandler 33 } 34 35 // NewRoot creates a new instance of the Root 36 func NewRoot(mspConfigHandler *msp.MSPConfigHandler) *Root { 37 return &Root{ 38 channel: NewChannelGroup(mspConfigHandler), 39 mspConfigHandler: mspConfigHandler, 40 } 41 } 42 43 type failDeserializer struct{} 44 45 func (fd failDeserializer) Deserialize(key string, value []byte) (proto.Message, error) { 46 return nil, fmt.Errorf("Programming error, this should never be invoked") 47 } 48 49 // BeginValueProposals is used to start a new config proposal 50 func (r *Root) BeginValueProposals(tx interface{}, groups []string) (ValueDeserializer, []ValueProposer, error) { 51 if len(groups) != 1 { 52 return nil, nil, fmt.Errorf("Root config only supports having one base group") 53 } 54 if groups[0] != ChannelGroupKey { 55 return nil, nil, fmt.Errorf("Root group must have channel") 56 } 57 r.mspConfigHandler.BeginConfig(tx) 58 return failDeserializer{}, []ValueProposer{r.channel}, nil 59 } 60 61 // RollbackConfig is used to abandon a new config proposal 62 func (r *Root) RollbackProposals(tx interface{}) { 63 r.mspConfigHandler.RollbackProposals(tx) 64 } 65 66 // PreCommit is used to verify total configuration before commit 67 func (r *Root) PreCommit(tx interface{}) error { 68 return r.mspConfigHandler.PreCommit(tx) 69 } 70 71 // CommitConfig is used to commit a new config proposal 72 func (r *Root) CommitProposals(tx interface{}) { 73 r.mspConfigHandler.CommitProposals(tx) 74 } 75 76 // Channel returns the associated Channel level config 77 func (r *Root) Channel() *ChannelGroup { 78 return r.channel 79 } 80 81 // Orderer returns the associated Orderer level config 82 func (r *Root) Orderer() *OrdererGroup { 83 return r.channel.OrdererConfig() 84 } 85 86 // Application returns the associated Application level config 87 func (r *Root) Application() *ApplicationGroup { 88 return r.channel.ApplicationConfig() 89 } 90 91 func (r *Root) Consortiums() *ConsortiumsGroup { 92 return r.channel.ConsortiumsConfig() 93 }