mirror of https://github.com/grpc/grpc-go.git
65 lines
2.0 KiB
Go
65 lines
2.0 KiB
Go
/*
|
|
*
|
|
* Copyright 2023 gRPC authors.
|
|
*
|
|
* 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 testutils
|
|
|
|
import "google.golang.org/grpc/xds/internal/xdsclient/xdsresource"
|
|
|
|
// TestResourceWatcher implements the xdsresource.ResourceWatcher interface,
|
|
// used to receive updates on watches registered with the xDS client, when using
|
|
// the resource-type agnostic WatchResource API.
|
|
//
|
|
// Tests can the channels provided by this tyep to get access to updates and
|
|
// errors sent by the xDS client.
|
|
type TestResourceWatcher struct {
|
|
// UpdateCh is the channel on which xDS client updates are delivered.
|
|
UpdateCh chan *xdsresource.ResourceData
|
|
// ErrorCh is the channel on which errors from the xDS client are delivered.
|
|
ErrorCh chan error
|
|
}
|
|
|
|
// OnUpdate is invoked by the xDS client to report an update on the resource
|
|
// being watched.
|
|
func (w *TestResourceWatcher) OnUpdate(data xdsresource.ResourceData) {
|
|
select {
|
|
case w.UpdateCh <- &data:
|
|
default:
|
|
}
|
|
}
|
|
|
|
// OnError is invoked by the xDS client to report errors.
|
|
func (w *TestResourceWatcher) OnError(err error) {
|
|
select {
|
|
case w.ErrorCh <- err:
|
|
default:
|
|
}
|
|
}
|
|
|
|
// OnResourceDoesNotExist is used by the xDS client to report that the resource
|
|
// being watched no longer exists.
|
|
func (w *TestResourceWatcher) OnResourceDoesNotExist() {}
|
|
|
|
// NewTestResourceWatcher returns a TestResourceWatcher to watch for resources
|
|
// via the xDS client.
|
|
func NewTestResourceWatcher() *TestResourceWatcher {
|
|
return &TestResourceWatcher{
|
|
UpdateCh: make(chan *xdsresource.ResourceData),
|
|
ErrorCh: make(chan error),
|
|
}
|
|
}
|