/
update.go
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/
update.go
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//<developer>
// <name>linapex 曹一峰</name>
// <email>linapex@163.com</email>
// <wx>superexc</wx>
// <qqgroup>128148617</qqgroup>
// <url>https://jsq.ink</url>
// <role>pku engineer</role>
// <date>2019-03-16 19:40:00</date>
//</624455971669807104>
/*
版权所有IBM Corp.2017保留所有权利。
根据Apache许可证2.0版(以下简称“许可证”)获得许可;
除非符合许可证,否则您不能使用此文件。
您可以在以下网址获得许可证副本:
http://www.apache.org/licenses/license-2.0
除非适用法律要求或书面同意,软件
根据许可证分发是按“原样”分发的,
无任何明示或暗示的保证或条件。
有关管理权限和
许可证限制。
**/
package update
import (
"bytes"
"fmt"
"github.com/golang/protobuf/proto"
cb "github.com/hyperledger/fabric/protos/common"
)
func computePoliciesMapUpdate(original, updated map[string]*cb.ConfigPolicy) (readSet, writeSet, sameSet map[string]*cb.ConfigPolicy, updatedMembers bool) {
readSet = make(map[string]*cb.ConfigPolicy)
writeSet = make(map[string]*cb.ConfigPolicy)
//所有修改后的配置都进入读/写集,但是如果映射成员身份发生更改,我们将保留
//配置与添加到读/写集的配置相同
sameSet = make(map[string]*cb.ConfigPolicy)
for policyName, originalPolicy := range original {
updatedPolicy, ok := updated[policyName]
if !ok {
updatedMembers = true
continue
}
if originalPolicy.ModPolicy == updatedPolicy.ModPolicy && proto.Equal(originalPolicy.Policy, updatedPolicy.Policy) {
sameSet[policyName] = &cb.ConfigPolicy{
Version: originalPolicy.Version,
}
continue
}
writeSet[policyName] = &cb.ConfigPolicy{
Version: originalPolicy.Version + 1,
ModPolicy: updatedPolicy.ModPolicy,
Policy: updatedPolicy.Policy,
}
}
for policyName, updatedPolicy := range updated {
if _, ok := original[policyName]; ok {
//如果updatedPolicy在原始策略集中,则它已被处理
continue
}
updatedMembers = true
writeSet[policyName] = &cb.ConfigPolicy{
Version: 0,
ModPolicy: updatedPolicy.ModPolicy,
Policy: updatedPolicy.Policy,
}
}
return
}
func computeValuesMapUpdate(original, updated map[string]*cb.ConfigValue) (readSet, writeSet, sameSet map[string]*cb.ConfigValue, updatedMembers bool) {
readSet = make(map[string]*cb.ConfigValue)
writeSet = make(map[string]*cb.ConfigValue)
//所有修改后的配置都进入读/写集,但是如果映射成员身份发生更改,我们将保留
//配置与添加到读/写集的配置相同
sameSet = make(map[string]*cb.ConfigValue)
for valueName, originalValue := range original {
updatedValue, ok := updated[valueName]
if !ok {
updatedMembers = true
continue
}
if originalValue.ModPolicy == updatedValue.ModPolicy && bytes.Equal(originalValue.Value, updatedValue.Value) {
sameSet[valueName] = &cb.ConfigValue{
Version: originalValue.Version,
}
continue
}
writeSet[valueName] = &cb.ConfigValue{
Version: originalValue.Version + 1,
ModPolicy: updatedValue.ModPolicy,
Value: updatedValue.Value,
}
}
for valueName, updatedValue := range updated {
if _, ok := original[valueName]; ok {
//如果updatedValue在原始值集中,则它已被处理
continue
}
updatedMembers = true
writeSet[valueName] = &cb.ConfigValue{
Version: 0,
ModPolicy: updatedValue.ModPolicy,
Value: updatedValue.Value,
}
}
return
}
func computeGroupsMapUpdate(original, updated map[string]*cb.ConfigGroup) (readSet, writeSet, sameSet map[string]*cb.ConfigGroup, updatedMembers bool) {
readSet = make(map[string]*cb.ConfigGroup)
writeSet = make(map[string]*cb.ConfigGroup)
//所有修改后的配置都进入读/写集,但是如果映射成员身份发生更改,我们将保留
//配置与添加到读/写集的配置相同
sameSet = make(map[string]*cb.ConfigGroup)
for groupName, originalGroup := range original {
updatedGroup, ok := updated[groupName]
if !ok {
updatedMembers = true
continue
}
groupReadSet, groupWriteSet, groupUpdated := computeGroupUpdate(originalGroup, updatedGroup)
if !groupUpdated {
sameSet[groupName] = groupReadSet
continue
}
readSet[groupName] = groupReadSet
writeSet[groupName] = groupWriteSet
}
for groupName, updatedGroup := range updated {
if _, ok := original[groupName]; ok {
//如果updatedGroup在原始组集中,则它已被处理
continue
}
updatedMembers = true
_, groupWriteSet, _ := computeGroupUpdate(cb.NewConfigGroup(), updatedGroup)
writeSet[groupName] = &cb.ConfigGroup{
Version: 0,
ModPolicy: updatedGroup.ModPolicy,
Policies: groupWriteSet.Policies,
Values: groupWriteSet.Values,
Groups: groupWriteSet.Groups,
}
}
return
}
func computeGroupUpdate(original, updated *cb.ConfigGroup) (readSet, writeSet *cb.ConfigGroup, updatedGroup bool) {
readSetPolicies, writeSetPolicies, sameSetPolicies, policiesMembersUpdated := computePoliciesMapUpdate(original.Policies, updated.Policies)
readSetValues, writeSetValues, sameSetValues, valuesMembersUpdated := computeValuesMapUpdate(original.Values, updated.Values)
readSetGroups, writeSetGroups, sameSetGroups, groupsMembersUpdated := computeGroupsMapUpdate(original.Groups, updated.Groups)
//如果更新后的组与更新后的组“相等”(成员和mod策略均未更改)
if !(policiesMembersUpdated || valuesMembersUpdated || groupsMembersUpdated || original.ModPolicy != updated.ModPolicy) {
//如果在任何策略/值/组映射中没有修改的条目
if len(readSetPolicies) == 0 &&
len(writeSetPolicies) == 0 &&
len(readSetValues) == 0 &&
len(writeSetValues) == 0 &&
len(readSetGroups) == 0 &&
len(writeSetGroups) == 0 {
return &cb.ConfigGroup{
Version: original.Version,
}, &cb.ConfigGroup{
Version: original.Version,
}, false
}
return &cb.ConfigGroup{
Version: original.Version,
Policies: readSetPolicies,
Values: readSetValues,
Groups: readSetGroups,
}, &cb.ConfigGroup{
Version: original.Version,
Policies: writeSetPolicies,
Values: writeSetValues,
Groups: writeSetGroups,
}, true
}
for k, samePolicy := range sameSetPolicies {
readSetPolicies[k] = samePolicy
writeSetPolicies[k] = samePolicy
}
for k, sameValue := range sameSetValues {
readSetValues[k] = sameValue
writeSetValues[k] = sameValue
}
for k, sameGroup := range sameSetGroups {
readSetGroups[k] = sameGroup
writeSetGroups[k] = sameGroup
}
return &cb.ConfigGroup{
Version: original.Version,
Policies: readSetPolicies,
Values: readSetValues,
Groups: readSetGroups,
}, &cb.ConfigGroup{
Version: original.Version + 1,
Policies: writeSetPolicies,
Values: writeSetValues,
Groups: writeSetGroups,
ModPolicy: updated.ModPolicy,
}, true
}
func Compute(original, updated *cb.Config) (*cb.ConfigUpdate, error) {
if original.ChannelGroup == nil {
return nil, fmt.Errorf("no channel group included for original config")
}
if updated.ChannelGroup == nil {
return nil, fmt.Errorf("no channel group included for updated config")
}
readSet, writeSet, groupUpdated := computeGroupUpdate(original.ChannelGroup, updated.ChannelGroup)
if !groupUpdated {
return nil, fmt.Errorf("no differences detected between original and updated config")
}
return &cb.ConfigUpdate{
ReadSet: readSet,
WriteSet: writeSet,
}, nil
}