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updatable_provider.go
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/
updatable_provider.go
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package unittest
import (
"sync"
"github.com/libp2p/go-libp2p/core/peer"
"github.com/onflow/flow-go/model/flow"
"github.com/onflow/flow-go/network/p2p/keyutils"
)
// UpdatableIDProvider implements an IdentityProvider which can be manually updated by setting
// the IdentityList to a new value.
// It also implements an IdentifierProvider which provides the identifiers of the IdentityList.
// This is mainly used to simulate epoch transitions in tests.
type UpdatableIDProvider struct {
mu sync.RWMutex
identities flow.IdentityList
}
func NewUpdatableIDProvider(identities flow.IdentityList) *UpdatableIDProvider {
return &UpdatableIDProvider{identities: identities}
}
// SetIdentities updates the IdentityList returned by this provider.
func (p *UpdatableIDProvider) SetIdentities(identities flow.IdentityList) {
p.mu.Lock()
defer p.mu.Unlock()
p.identities = identities
}
func (p *UpdatableIDProvider) Identities(filter flow.IdentityFilter[flow.Identity]) flow.IdentityList {
p.mu.RLock()
defer p.mu.RUnlock()
return p.identities.Filter(filter)
}
func (p *UpdatableIDProvider) Identifiers() flow.IdentifierList {
p.mu.RLock()
defer p.mu.RUnlock()
return p.identities.NodeIDs()
}
func (p *UpdatableIDProvider) ByNodeID(flowID flow.Identifier) (*flow.Identity, bool) {
p.mu.RLock()
defer p.mu.RUnlock()
for _, v := range p.identities {
if v.ID() == flowID {
return v, true
}
}
return nil, false
}
func (p *UpdatableIDProvider) ByPeerID(peerID peer.ID) (*flow.Identity, bool) {
p.mu.RLock()
defer p.mu.RUnlock()
for _, v := range p.identities {
if id, err := keyutils.PeerIDFromFlowPublicKey(v.NetworkPubKey); err == nil {
if id == peerID {
return v, true
}
}
}
return nil, false
}