454 lines
14 KiB
Go
454 lines
14 KiB
Go
//go:build !slurp_full
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// +build !slurp_full
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package distribution
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import (
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"context"
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"sync"
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"time"
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"chorus/pkg/config"
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"chorus/pkg/crypto"
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"chorus/pkg/dht"
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"chorus/pkg/election"
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slurpContext "chorus/pkg/slurp/context"
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"chorus/pkg/ucxl"
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)
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// DHTContextDistributor provides an in-memory stub implementation that satisfies the
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// ContextDistributor interface when the full libp2p-based stack is unavailable.
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type DHTContextDistributor struct {
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mu sync.RWMutex
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dht dht.DHT
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config *config.Config
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storage map[string]*slurpContext.ContextNode
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stats *DistributionStatistics
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policy *ReplicationPolicy
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}
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// NewDHTContextDistributor returns a stub distributor that stores contexts in-memory.
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func NewDHTContextDistributor(
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dhtInstance dht.DHT,
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roleCrypto *crypto.RoleCrypto,
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electionManager election.Election,
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cfg *config.Config,
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) (*DHTContextDistributor, error) {
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return &DHTContextDistributor{
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dht: dhtInstance,
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config: cfg,
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storage: make(map[string]*slurpContext.ContextNode),
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stats: &DistributionStatistics{CollectedAt: time.Now()},
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policy: &ReplicationPolicy{
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DefaultFactor: 1,
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MinFactor: 1,
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MaxFactor: 1,
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},
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}, nil
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}
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func (d *DHTContextDistributor) Start(ctx context.Context) error { return nil }
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func (d *DHTContextDistributor) Stop(ctx context.Context) error { return nil }
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func (d *DHTContextDistributor) DistributeContext(ctx context.Context, node *slurpContext.ContextNode, roles []string) error {
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if node == nil {
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return nil
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}
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d.mu.Lock()
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defer d.mu.Unlock()
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key := node.UCXLAddress.String()
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d.storage[key] = node
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d.stats.TotalDistributions++
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d.stats.SuccessfulDistributions++
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return nil
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}
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func (d *DHTContextDistributor) RetrieveContext(ctx context.Context, address ucxl.Address, role string) (*slurpContext.ResolvedContext, error) {
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d.mu.RLock()
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defer d.mu.RUnlock()
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if node, ok := d.storage[address.String()]; ok {
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return &slurpContext.ResolvedContext{
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UCXLAddress: address,
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Summary: node.Summary,
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Purpose: node.Purpose,
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Technologies: append([]string{}, node.Technologies...),
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Tags: append([]string{}, node.Tags...),
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Insights: append([]string{}, node.Insights...),
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ResolvedAt: time.Now(),
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}, nil
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}
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return nil, nil
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}
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func (d *DHTContextDistributor) UpdateContext(ctx context.Context, node *slurpContext.ContextNode, roles []string) (*ConflictResolution, error) {
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if err := d.DistributeContext(ctx, node, roles); err != nil {
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return nil, err
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}
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return &ConflictResolution{Address: node.UCXLAddress, ResolutionType: ResolutionMerged, ResolvedAt: time.Now(), Confidence: 1.0}, nil
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}
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func (d *DHTContextDistributor) DeleteContext(ctx context.Context, address ucxl.Address) error {
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d.mu.Lock()
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defer d.mu.Unlock()
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delete(d.storage, address.String())
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return nil
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}
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func (d *DHTContextDistributor) ListDistributedContexts(ctx context.Context, role string, criteria *DistributionCriteria) ([]*DistributedContextInfo, error) {
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d.mu.RLock()
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defer d.mu.RUnlock()
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infos := make([]*DistributedContextInfo, 0, len(d.storage))
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for _, node := range d.storage {
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infos = append(infos, &DistributedContextInfo{
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Address: node.UCXLAddress,
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Roles: append([]string{}, role),
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ReplicaCount: 1,
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HealthyReplicas: 1,
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LastUpdated: time.Now(),
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})
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}
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return infos, nil
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}
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func (d *DHTContextDistributor) Sync(ctx context.Context) (*SyncResult, error) {
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return &SyncResult{SyncedContexts: len(d.storage), SyncedAt: time.Now()}, nil
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}
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func (d *DHTContextDistributor) Replicate(ctx context.Context, address ucxl.Address, replicationFactor int) error {
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return nil
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}
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func (d *DHTContextDistributor) GetReplicaHealth(ctx context.Context, address ucxl.Address) (*ReplicaHealth, error) {
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d.mu.RLock()
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defer d.mu.RUnlock()
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_, ok := d.storage[address.String()]
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return &ReplicaHealth{
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Address: address,
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TotalReplicas: boolToInt(ok),
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HealthyReplicas: boolToInt(ok),
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FailedReplicas: 0,
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OverallHealth: healthFromBool(ok),
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LastChecked: time.Now(),
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}, nil
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}
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func (d *DHTContextDistributor) GetDistributionStats() (*DistributionStatistics, error) {
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d.mu.RLock()
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defer d.mu.RUnlock()
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statsCopy := *d.stats
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statsCopy.LastSyncTime = time.Now()
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return &statsCopy, nil
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}
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func (d *DHTContextDistributor) SetReplicationPolicy(policy *ReplicationPolicy) error {
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d.mu.Lock()
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defer d.mu.Unlock()
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if policy != nil {
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d.policy = policy
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}
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return nil
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}
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func boolToInt(ok bool) int {
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if ok {
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return 1
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}
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return 0
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}
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func healthFromBool(ok bool) HealthStatus {
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if ok {
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return HealthHealthy
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}
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return HealthDegraded
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}
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// Replication manager stub ----------------------------------------------------------------------
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type stubReplicationManager struct {
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policy *ReplicationPolicy
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}
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func newStubReplicationManager(policy *ReplicationPolicy) *stubReplicationManager {
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if policy == nil {
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policy = &ReplicationPolicy{DefaultFactor: 1, MinFactor: 1, MaxFactor: 1}
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}
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return &stubReplicationManager{policy: policy}
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}
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func NewReplicationManager(dhtInstance dht.DHT, cfg *config.Config) (ReplicationManager, error) {
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return newStubReplicationManager(nil), nil
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}
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func (rm *stubReplicationManager) EnsureReplication(ctx context.Context, address ucxl.Address, factor int) error {
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return nil
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}
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func (rm *stubReplicationManager) RepairReplicas(ctx context.Context, address ucxl.Address) (*RepairResult, error) {
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return &RepairResult{
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Address: address.String(),
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RepairSuccessful: true,
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RepairedAt: time.Now(),
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}, nil
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}
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func (rm *stubReplicationManager) BalanceReplicas(ctx context.Context) (*RebalanceResult, error) {
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return &RebalanceResult{RebalanceTime: time.Millisecond, RebalanceSuccessful: true}, nil
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}
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func (rm *stubReplicationManager) GetReplicationStatus(ctx context.Context, address ucxl.Address) (*ReplicationStatus, error) {
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return &ReplicationStatus{
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Address: address.String(),
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DesiredReplicas: rm.policy.DefaultFactor,
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CurrentReplicas: rm.policy.DefaultFactor,
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HealthyReplicas: rm.policy.DefaultFactor,
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ReplicaDistribution: map[string]int{},
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Status: "nominal",
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}, nil
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}
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func (rm *stubReplicationManager) SetReplicationFactor(factor int) error {
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if factor < 1 {
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factor = 1
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}
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rm.policy.DefaultFactor = factor
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return nil
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}
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func (rm *stubReplicationManager) GetReplicationStats() (*ReplicationStatistics, error) {
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return &ReplicationStatistics{LastUpdated: time.Now()}, nil
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}
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// Conflict resolver stub ------------------------------------------------------------------------
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type ConflictResolverImpl struct{}
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func NewConflictResolver(dhtInstance dht.DHT, cfg *config.Config) (ConflictResolver, error) {
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return &ConflictResolverImpl{}, nil
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}
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func (cr *ConflictResolverImpl) ResolveConflict(ctx context.Context, local, remote *slurpContext.ContextNode) (*ConflictResolution, error) {
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return &ConflictResolution{Address: local.UCXLAddress, ResolutionType: ResolutionMerged, MergedContext: local, ResolvedAt: time.Now(), Confidence: 1.0}, nil
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}
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func (cr *ConflictResolverImpl) DetectConflicts(ctx context.Context, update *slurpContext.ContextNode) ([]*PotentialConflict, error) {
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return []*PotentialConflict{}, nil
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}
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func (cr *ConflictResolverImpl) MergeContexts(ctx context.Context, contexts []*slurpContext.ContextNode) (*slurpContext.ContextNode, error) {
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if len(contexts) == 0 {
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return nil, nil
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}
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return contexts[0], nil
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}
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func (cr *ConflictResolverImpl) GetConflictHistory(ctx context.Context, address ucxl.Address) ([]*ConflictResolution, error) {
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return []*ConflictResolution{}, nil
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}
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func (cr *ConflictResolverImpl) SetResolutionStrategy(strategy *ResolutionStrategy) error {
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return nil
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}
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// Gossip protocol stub -------------------------------------------------------------------------
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type stubGossipProtocol struct{}
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func NewGossipProtocol(dhtInstance dht.DHT, cfg *config.Config) (GossipProtocol, error) {
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return &stubGossipProtocol{}, nil
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}
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func (gp *stubGossipProtocol) StartGossip(ctx context.Context) error { return nil }
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func (gp *stubGossipProtocol) StopGossip(ctx context.Context) error { return nil }
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func (gp *stubGossipProtocol) GossipMetadata(ctx context.Context, peer string) error { return nil }
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func (gp *stubGossipProtocol) GetGossipState() (*GossipState, error) {
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return &GossipState{}, nil
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}
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func (gp *stubGossipProtocol) SetGossipInterval(interval time.Duration) error { return nil }
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func (gp *stubGossipProtocol) GetGossipStats() (*GossipStatistics, error) {
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return &GossipStatistics{LastUpdated: time.Now()}, nil
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}
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// Network manager stub -------------------------------------------------------------------------
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type stubNetworkManager struct {
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dht dht.DHT
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}
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func NewNetworkManager(dhtInstance dht.DHT, cfg *config.Config) (NetworkManager, error) {
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return &stubNetworkManager{dht: dhtInstance}, nil
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}
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func (nm *stubNetworkManager) DetectPartition(ctx context.Context) (*PartitionInfo, error) {
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return &PartitionInfo{DetectedAt: time.Now()}, nil
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}
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func (nm *stubNetworkManager) GetTopology(ctx context.Context) (*NetworkTopology, error) {
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return &NetworkTopology{UpdatedAt: time.Now()}, nil
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}
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func (nm *stubNetworkManager) GetPeers(ctx context.Context) ([]*PeerInfo, error) {
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return []*PeerInfo{}, nil
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}
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func (nm *stubNetworkManager) CheckConnectivity(ctx context.Context, peers []string) (*ConnectivityReport, error) {
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report := &ConnectivityReport{
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TotalPeers: len(peers),
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ReachablePeers: len(peers),
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PeerResults: make(map[string]*ConnectivityResult),
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TestedAt: time.Now(),
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}
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for _, id := range peers {
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report.PeerResults[id] = &ConnectivityResult{PeerID: id, Reachable: true, TestedAt: time.Now()}
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}
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return report, nil
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}
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func (nm *stubNetworkManager) RecoverFromPartition(ctx context.Context) (*RecoveryResult, error) {
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return &RecoveryResult{RecoverySuccessful: true, RecoveredAt: time.Now()}, nil
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}
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func (nm *stubNetworkManager) GetNetworkStats() (*NetworkStatistics, error) {
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return &NetworkStatistics{LastUpdated: time.Now(), LastHealthCheck: time.Now()}, nil
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}
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// Vector clock stub ---------------------------------------------------------------------------
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type defaultVectorClockManager struct {
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mu sync.Mutex
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clocks map[string]*VectorClock
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}
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func NewVectorClockManager(dhtInstance dht.DHT, nodeID string) (VectorClockManager, error) {
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return &defaultVectorClockManager{clocks: make(map[string]*VectorClock)}, nil
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}
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func (vcm *defaultVectorClockManager) GetClock(nodeID string) (*VectorClock, error) {
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vcm.mu.Lock()
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defer vcm.mu.Unlock()
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if clock, ok := vcm.clocks[nodeID]; ok {
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return clock, nil
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}
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clock := &VectorClock{Clock: map[string]int64{nodeID: time.Now().Unix()}, UpdatedAt: time.Now()}
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vcm.clocks[nodeID] = clock
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return clock, nil
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}
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func (vcm *defaultVectorClockManager) UpdateClock(nodeID string, clock *VectorClock) error {
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vcm.mu.Lock()
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defer vcm.mu.Unlock()
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vcm.clocks[nodeID] = clock
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return nil
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}
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func (vcm *defaultVectorClockManager) CompareClock(clock1, clock2 *VectorClock) ClockRelation {
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return ClockConcurrent
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}
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func (vcm *defaultVectorClockManager) MergeClock(clocks []*VectorClock) *VectorClock {
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return &VectorClock{Clock: make(map[string]int64), UpdatedAt: time.Now()}
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}
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// Coordinator stub ----------------------------------------------------------------------------
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type DistributionCoordinator struct {
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config *config.Config
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distributor ContextDistributor
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stats *CoordinationStatistics
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metrics *PerformanceMetrics
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}
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func NewDistributionCoordinator(
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cfg *config.Config,
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dhtInstance dht.DHT,
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roleCrypto *crypto.RoleCrypto,
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electionManager election.Election,
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) (*DistributionCoordinator, error) {
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distributor, err := NewDHTContextDistributor(dhtInstance, roleCrypto, electionManager, cfg)
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if err != nil {
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return nil, err
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}
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return &DistributionCoordinator{
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config: cfg,
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distributor: distributor,
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stats: &CoordinationStatistics{LastUpdated: time.Now()},
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metrics: &PerformanceMetrics{CollectedAt: time.Now()},
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}, nil
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}
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func (dc *DistributionCoordinator) Start(ctx context.Context) error { return nil }
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func (dc *DistributionCoordinator) Stop(ctx context.Context) error { return nil }
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func (dc *DistributionCoordinator) DistributeContext(ctx context.Context, request *DistributionRequest) (*DistributionResult, error) {
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if request == nil || request.ContextNode == nil {
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return &DistributionResult{Success: true, CompletedAt: time.Now()}, nil
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}
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if err := dc.distributor.DistributeContext(ctx, request.ContextNode, request.TargetRoles); err != nil {
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return nil, err
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}
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return &DistributionResult{Success: true, DistributedNodes: []string{"local"}, CompletedAt: time.Now()}, nil
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}
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func (dc *DistributionCoordinator) CoordinateReplication(ctx context.Context, address ucxl.Address, factor int) (*RebalanceResult, error) {
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return &RebalanceResult{RebalanceTime: time.Millisecond, RebalanceSuccessful: true}, nil
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}
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func (dc *DistributionCoordinator) ResolveConflicts(ctx context.Context, conflicts []*PotentialConflict) ([]*ConflictResolution, error) {
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resolutions := make([]*ConflictResolution, 0, len(conflicts))
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for _, conflict := range conflicts {
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resolutions = append(resolutions, &ConflictResolution{Address: conflict.Address, ResolutionType: ResolutionMerged, ResolvedAt: time.Now(), Confidence: 1.0})
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}
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return resolutions, nil
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}
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func (dc *DistributionCoordinator) GetClusterHealth() (*ClusterHealth, error) {
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return &ClusterHealth{OverallStatus: HealthHealthy, LastUpdated: time.Now()}, nil
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}
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func (dc *DistributionCoordinator) GetCoordinationStats() (*CoordinationStatistics, error) {
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return dc.stats, nil
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}
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func (dc *DistributionCoordinator) GetPerformanceMetrics() (*PerformanceMetrics, error) {
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return dc.metrics, nil
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}
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// Minimal type definitions (mirroring slurp_full variants) --------------------------------------
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type CoordinationStatistics struct {
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TasksProcessed int
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LastUpdated time.Time
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}
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type PerformanceMetrics struct {
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CollectedAt time.Time
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}
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type ClusterHealth struct {
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OverallStatus HealthStatus
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HealthyNodes int
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UnhealthyNodes int
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LastUpdated time.Time
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ComponentHealth map[string]*ComponentHealth
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Alerts []string
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}
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type ComponentHealth struct {
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ComponentType string
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Status string
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HealthScore float64
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LastCheck time.Time
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}
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type DistributionRequest struct {
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RequestID string
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ContextNode *slurpContext.ContextNode
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TargetRoles []string
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}
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type DistributionResult struct {
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RequestID string
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Success bool
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DistributedNodes []string
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CompletedAt time.Time
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}
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