/
callbacks.go
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/
callbacks.go
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//nolint:all
package test
import (
"context"
"log"
"sync"
core "github.com/envoyproxy/go-control-plane/envoy/config/core/v3"
discovery "github.com/envoyproxy/go-control-plane/envoy/service/discovery/v3"
"github.com/envoyproxy/go-control-plane/pkg/server/v3"
)
type Callbacks struct {
Signal chan struct{}
Debug bool
Fetches int
Requests int
Responses int
DeltaRequests int
DeltaResponses int
mu sync.Mutex
}
var _ server.Callbacks = &Callbacks{}
func (cb *Callbacks) Report() {
cb.mu.Lock()
defer cb.mu.Unlock()
log.Printf("server callbacks fetches=%d requests=%d responses=%d\n", cb.Fetches, cb.Requests, cb.Responses)
}
func (cb *Callbacks) OnStreamOpen(_ context.Context, id int64, typ string) error {
if cb.Debug {
log.Printf("stream %d open for %s\n", id, typ)
}
return nil
}
func (cb *Callbacks) OnStreamClosed(id int64, node *core.Node) {
if cb.Debug {
log.Printf("stream %d of node %s closed\n", id, node.Id)
}
}
func (cb *Callbacks) OnDeltaStreamOpen(_ context.Context, id int64, typ string) error {
if cb.Debug {
log.Printf("delta stream %d open for %s\n", id, typ)
}
return nil
}
func (cb *Callbacks) OnDeltaStreamClosed(id int64, node *core.Node) {
if cb.Debug {
log.Printf("delta stream %d of node %s closed\n", id, node.Id)
}
}
func (cb *Callbacks) OnStreamRequest(id int64, req *discovery.DiscoveryRequest) error {
cb.mu.Lock()
defer cb.mu.Unlock()
cb.Requests++
if cb.Signal != nil {
close(cb.Signal)
cb.Signal = nil
}
if cb.Debug {
log.Printf("received request for %s on stream %d: %v:%v", req.GetTypeUrl(), id, req.VersionInfo, req.ResourceNames)
}
return nil
}
func (cb *Callbacks) OnStreamResponse(ctx context.Context, id int64, req *discovery.DiscoveryRequest, res *discovery.DiscoveryResponse) {
cb.mu.Lock()
defer cb.mu.Unlock()
cb.Responses++
if cb.Debug {
log.Printf("responding to request for %s on stream %d", req.GetTypeUrl(), id)
}
}
func (cb *Callbacks) OnStreamDeltaResponse(id int64, req *discovery.DeltaDiscoveryRequest, res *discovery.DeltaDiscoveryResponse) {
cb.mu.Lock()
defer cb.mu.Unlock()
cb.DeltaResponses++
}
func (cb *Callbacks) OnStreamDeltaRequest(int64, *discovery.DeltaDiscoveryRequest) error {
cb.mu.Lock()
defer cb.mu.Unlock()
cb.DeltaRequests++
if cb.Signal != nil {
close(cb.Signal)
cb.Signal = nil
}
return nil
}
func (cb *Callbacks) OnFetchRequest(context.Context, *discovery.DiscoveryRequest) error {
cb.mu.Lock()
defer cb.mu.Unlock()
cb.Fetches++
if cb.Signal != nil {
close(cb.Signal)
cb.Signal = nil
}
return nil
}
func (cb *Callbacks) OnFetchResponse(*discovery.DiscoveryRequest, *discovery.DiscoveryResponse) {}