-
Notifications
You must be signed in to change notification settings - Fork 0
/
pvtrwset_assembler.go
104 lines (94 loc) · 3.6 KB
/
pvtrwset_assembler.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
/*
*
* Copyright IBM Corp. All Rights Reserved.
*
* SPDX-License-Identifier: Apache-2.0
* /
*
*/
package endorser
import (
"fmt"
"github.com/hyperledger/fabric/core/ledger"
"github.com/hyperledger/fabric/protos/common"
"github.com/hyperledger/fabric/protos/ledger/rwset"
"github.com/hyperledger/fabric/protos/transientstore"
"github.com/pkg/errors"
)
// PvtRWSetAssembler assembles private read write set for distribution
// augments with additional information if needed
type PvtRWSetAssembler interface {
// AssemblePvtRWSet prepares TxPvtReadWriteSet for distribution
// augmenting it into TxPvtReadWriteSetWithConfigInfo adding
// information about collections config available related
// to private read-write set
AssemblePvtRWSet(channelName string,
privData *rwset.TxPvtReadWriteSet,
txsim ledger.SimpleQueryExecutor,
deployedCCInfoProvider ledger.DeployedChaincodeInfoProvider) (
*transientstore.TxPvtReadWriteSetWithConfigInfo, error,
)
}
// CollectionConfigRetriever encapsulates sub-functionality of ledger.TxSimulator
// to abstract minimum required functions set
type CollectionConfigRetriever interface {
// GetState gets the value for given namespace and key. For a chaincode, the namespace corresponds to the chaincodeId
GetState(namespace string, key string) ([]byte, error)
}
type rwSetAssembler struct {
}
// AssemblePvtRWSet prepares TxPvtReadWriteSet for distribution
// augmenting it into TxPvtReadWriteSetWithConfigInfo adding
// information about collections config available related
// to private read-write set
func (as *rwSetAssembler) AssemblePvtRWSet(channelName string,
privData *rwset.TxPvtReadWriteSet,
txsim ledger.SimpleQueryExecutor,
deployedCCInfoProvider ledger.DeployedChaincodeInfoProvider) (
*transientstore.TxPvtReadWriteSetWithConfigInfo, error,
) {
txPvtRwSetWithConfig := &transientstore.TxPvtReadWriteSetWithConfigInfo{
PvtRwset: privData,
CollectionConfigs: make(map[string]*common.CollectionConfigPackage),
}
for _, pvtRwset := range privData.NsPvtRwset {
namespace := pvtRwset.Namespace
if _, found := txPvtRwSetWithConfig.CollectionConfigs[namespace]; !found {
ccInfo, err := deployedCCInfoProvider.ChaincodeInfo(channelName, namespace, txsim)
if err != nil {
return nil, errors.WithMessagef(err, "error while retrieving collection config for chaincode %#v", namespace)
}
colCP := ccInfo.AllCollectionsConfigPkg()
if colCP == nil {
return nil, errors.New(fmt.Sprintf("no collection config for chaincode %#v", namespace))
}
txPvtRwSetWithConfig.CollectionConfigs[namespace] = colCP
}
}
as.trimCollectionConfigs(txPvtRwSetWithConfig)
return txPvtRwSetWithConfig, nil
}
func (as *rwSetAssembler) trimCollectionConfigs(pvtData *transientstore.TxPvtReadWriteSetWithConfigInfo) {
flags := make(map[string]map[string]struct{})
for _, pvtRWset := range pvtData.PvtRwset.NsPvtRwset {
namespace := pvtRWset.Namespace
for _, col := range pvtRWset.CollectionPvtRwset {
if _, found := flags[namespace]; !found {
flags[namespace] = make(map[string]struct{})
}
flags[namespace][col.CollectionName] = struct{}{}
}
}
filteredConfigs := make(map[string]*common.CollectionConfigPackage)
for namespace, configs := range pvtData.CollectionConfigs {
filteredConfigs[namespace] = &common.CollectionConfigPackage{}
for _, conf := range configs.Config {
if colConf := conf.GetStaticCollectionConfig(); colConf != nil {
if _, found := flags[namespace][colConf.Name]; found {
filteredConfigs[namespace].Config = append(filteredConfigs[namespace].Config, conf)
}
}
}
}
pvtData.CollectionConfigs = filteredConfigs
}