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genesisdataprovider.go
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/
genesisdataprovider.go
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/*
* Copyright 2019 Insolar Technologies
*
* 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 genesisdataprovider
import (
"context"
"sync"
"github.com/insolar/insolar/application/extractor"
"github.com/insolar/insolar/core"
"github.com/insolar/insolar/core/reply"
"github.com/pkg/errors"
)
// GenesisDataProvider gives access to basic information about genesis objects
type GenesisDataProvider struct {
CertificateManager core.CertificateManager `inject:""`
ContractRequester core.ContractRequester `inject:""`
rootMemberRef *core.RecordRef
nodeDomainRef *core.RecordRef
lock sync.RWMutex
}
// New creates new GenesisDataProvider
func New() (*GenesisDataProvider, error) {
return &GenesisDataProvider{}, nil
}
func (gdp *GenesisDataProvider) setInfo(ctx context.Context) error {
routResult, err := gdp.ContractRequester.SendRequest(ctx, gdp.GetRootDomain(ctx), "Info", []interface{}{})
if err != nil {
return errors.Wrap(err, "[ setInfo ] Can't send request")
}
info, err := extractor.InfoResponse(routResult.(*reply.CallMethod).Result)
if err != nil {
return errors.Wrap(err, "[ setInfo ] Can't extract response")
}
rootMemberRef, err := core.NewRefFromBase58(info.RootMember)
if err != nil {
return errors.Wrap(err, "[ setInfo ] Failed to parse info.RootMember")
}
gdp.rootMemberRef = rootMemberRef
nodeDomainRef, err := core.NewRefFromBase58(info.NodeDomain)
if err != nil {
return errors.Wrap(err, "[ setInfo ] Failed to parse info.NodeDomain")
}
gdp.nodeDomainRef = nodeDomainRef
return nil
}
// GetRootDomain returns reference to RootDomain
func (gdp *GenesisDataProvider) GetRootDomain(ctx context.Context) *core.RecordRef {
return gdp.CertificateManager.GetCertificate().GetRootDomainReference()
}
// GetNodeDomain returns reference to NodeDomain
func (gdp *GenesisDataProvider) GetNodeDomain(ctx context.Context) (*core.RecordRef, error) {
gdp.lock.Lock()
defer gdp.lock.Unlock()
if gdp.nodeDomainRef == nil {
err := gdp.setInfo(ctx)
if err != nil {
return nil, errors.Wrap(err, "[ GenesisDataProvider::GetNodeDomain ] Can't get info")
}
}
return gdp.nodeDomainRef, nil
}
// GetRootMember returns reference to RootMember
func (gdp *GenesisDataProvider) GetRootMember(ctx context.Context) (*core.RecordRef, error) {
gdp.lock.Lock()
defer gdp.lock.Unlock()
if gdp.rootMemberRef == nil {
err := gdp.setInfo(ctx)
if err != nil {
return nil, errors.Wrap(err, "[ GenesisDataProvider::GetRootMember ] Can't get info")
}
}
return gdp.rootMemberRef, nil
}