/
provenance.go
206 lines (190 loc) · 5.49 KB
/
provenance.go
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// Copyright IBM Corp. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0
package bcdb
import (
"errors"
"github.com/hyperledger-labs/orion-server/pkg/constants"
"github.com/hyperledger-labs/orion-server/pkg/types"
)
type provenance struct {
*commonTxContext
}
func (p *provenance) GetHistoricalData(dbName, key string) ([]*types.ValueWithMetadata, error) {
path := constants.URLForGetHistoricalData(dbName, key)
resEnv := &types.GetHistoricalDataResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetHistoricalDataQuery{
UserId: p.userID,
DbName: dbName,
Key: key,
}, resEnv,
)
if err != nil {
p.logger.Errorf("failed to execute historical data query %s, due to %s", path, err)
return nil, err
}
return resEnv.GetResponse().GetValues(), nil
}
func (p *provenance) GetHistoricalDataAt(dbName, key string, version *types.Version) (*types.ValueWithMetadata, error) {
path := constants.URLForGetHistoricalDataAt(dbName, key, version)
resEnv := &types.GetHistoricalDataResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetHistoricalDataQuery{
UserId: p.userID,
DbName: dbName,
Key: key,
Version: version,
}, resEnv,
)
if err != nil {
p.logger.Errorf("failed to parse execute data query %s, due to %s", path, err)
return nil, err
}
values := resEnv.GetResponse().GetValues()
if len(values) == 0 {
return nil, nil
}
if len(values) > 1 {
return nil, errors.New("error getting historical data fro specific version, more that one record returned")
}
return values[0], nil
}
func (p *provenance) GetPreviousHistoricalData(dbName, key string, version *types.Version) ([]*types.ValueWithMetadata, error) {
path := constants.URLForGetPreviousHistoricalData(dbName, key, version)
resEnv := &types.GetHistoricalDataResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetHistoricalDataQuery{
UserId: p.userID,
DbName: dbName,
Key: key,
Version: version,
Direction: "previous",
}, resEnv,
)
if err != nil {
p.logger.Errorf("failed to execute previous historical data query %s, due to %s", path, err)
return nil, err
}
return resEnv.GetResponse().GetValues(), nil
}
func (p *provenance) GetNextHistoricalData(dbName, key string, version *types.Version) ([]*types.ValueWithMetadata, error) {
path := constants.URLForGetNextHistoricalData(dbName, key, version)
resEnv := &types.GetHistoricalDataResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetHistoricalDataQuery{
UserId: p.userID,
DbName: dbName,
Key: key,
Version: version,
Direction: "next",
}, resEnv,
)
if err != nil {
p.logger.Errorf("failed to execute next historical data query %s, due to %s", path, err)
return nil, err
}
return resEnv.GetResponse().GetValues(), nil
}
func (p *provenance) GetDataReadByUser(userID string) (map[string]*types.KVsWithMetadata, error) {
path := constants.URLForGetDataReadBy(userID)
resEnv := &types.GetDataProvenanceResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetDataReadByQuery{
UserId: p.userID,
TargetUserId: userID,
}, resEnv,
)
if err != nil {
p.logger.Errorf("failed to execute data read by user query %s, due to %s", path, err)
return nil, err
}
return resEnv.GetResponse().GetDBKeyValues(), nil
}
func (p *provenance) GetDataWrittenByUser(userID string) (map[string]*types.KVsWithMetadata, error) {
path := constants.URLForGetDataWrittenBy(userID)
resEnv := &types.GetDataProvenanceResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetDataWrittenByQuery{
UserId: p.userID,
TargetUserId: userID,
}, resEnv,
)
if err != nil {
p.logger.Errorf("failed to execute data written by user query %s, due to %s", path, err)
return nil, err
}
return resEnv.GetResponse().GetDBKeyValues(), nil
}
func (p *provenance) GetReaders(dbName, key string) ([]string, error) {
path := constants.URLForGetDataReaders(dbName, key)
resEnv := &types.GetDataReadersResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetDataReadersQuery{
UserId: p.userID,
DbName: dbName,
Key: key,
}, resEnv,
)
if err != nil {
p.logger.Errorf("failed to execute data readers query %s, due to %s", path, err)
return nil, err
}
res := resEnv.GetResponse()
if res.GetReadBy() == nil {
return nil, nil
}
readers := make([]string, 0)
for k := range res.GetReadBy() {
readers = append(readers, k)
}
return readers, nil
}
func (p *provenance) GetWriters(dbName, key string) ([]string, error) {
path := constants.URLForGetDataWriters(dbName, key)
resEnv := &types.GetDataWritersResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetDataWritersQuery{
UserId: p.userID,
DbName: dbName,
Key: key,
}, resEnv,
)
if err != nil {
p.logger.Errorf("failed to execute data writers query %s, due to %s", path, err)
return nil, err
}
res := resEnv.GetResponse()
if res.GetWrittenBy() == nil {
return nil, nil
}
writers := make([]string, 0)
for k := range res.GetWrittenBy() {
writers = append(writers, k)
}
return writers, nil
}
func (p *provenance) GetTxIDsSubmittedByUser(userID string) ([]string, error) {
path := constants.URLForGetTxIDsSubmittedBy(userID)
resEnv := &types.GetTxIDsSubmittedByResponseEnvelope{}
err := p.handleRequest(
path,
&types.GetTxIDsSubmittedByQuery{
UserId: p.userID,
TargetUserId: userID,
},
resEnv,
)
if err != nil {
p.logger.Errorf("failed to execute tx id by user query %s, due to %s", path, err)
return nil, err
}
return resEnv.GetResponse().GetTxIDs(), nil
}