-
Notifications
You must be signed in to change notification settings - Fork 36
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Signed-off-by: denis-tingaikin <[email protected]>
- Loading branch information
1 parent
3dadc67
commit 54e953c
Showing
4 changed files
with
100 additions
and
12 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,88 @@ | ||
| // Copyright (c) 2020-2021 Doc.ai and/or its affiliates. | ||
| // | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
| // 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 querycache adds possible to cache Find queries | ||
| package querycache | ||
|
|
||
| import ( | ||
| "context" | ||
| "time" | ||
|
|
||
| cache "github.com/go-pkgz/expirable-cache/v3" | ||
| "github.com/golang/protobuf/ptypes/empty" | ||
| "google.golang.org/grpc" | ||
|
|
||
| "github.com/networkservicemesh/api/pkg/api/registry" | ||
|
|
||
| "github.com/networkservicemesh/sdk/pkg/registry/core/next" | ||
| "github.com/networkservicemesh/sdk/pkg/registry/core/streamchannel" | ||
| ) | ||
|
|
||
| type queryCacheNSClient struct { | ||
| chainContext context.Context | ||
| cache cache.Cache[string, []*registry.NetworkService] | ||
| } | ||
|
|
||
| // NewNetworkServiceRegistryClient creates new querycache NS registry client that caches all resolved NSs | ||
| func NewNetworkServiceRegistryClient(ctx context.Context) registry.NetworkServiceRegistryClient { | ||
| var res = &queryCacheNSClient{ | ||
| chainContext: ctx, | ||
| cache: cache.NewCache[string, []*registry.NetworkService]().WithLRU().WithMaxKeys(32).WithTTL(time.Millisecond * 100), | ||
| } | ||
| return res | ||
| } | ||
|
|
||
| func (q *queryCacheNSClient) Register(ctx context.Context, nse *registry.NetworkService, opts ...grpc.CallOption) (*registry.NetworkService, error) { | ||
| resp, err := next.NetworkServiceRegistryClient(ctx).Register(ctx, nse, opts...) | ||
| if err == nil { | ||
| q.cache.Add(resp.GetName(), []*registry.NetworkService{resp}) | ||
| } | ||
| return resp, err | ||
| } | ||
|
|
||
| func (q *queryCacheNSClient) Find(ctx context.Context, query *registry.NetworkServiceQuery, opts ...grpc.CallOption) (registry.NetworkServiceRegistry_FindClient, error) { | ||
| if query.Watch { | ||
| return next.NetworkServiceRegistryClient(ctx).Find(ctx, query, opts...) | ||
| } | ||
|
|
||
| var list []*registry.NetworkService | ||
| if v, ok := q.cache.Get(query.GetNetworkService().GetName()); ok { | ||
| list = v | ||
| } else { | ||
| var streamClient, err = next.NetworkServiceRegistryClient(ctx).Find(ctx, query, opts...) | ||
| if err != nil { | ||
| return streamClient, err | ||
| } | ||
| list = registry.ReadNetworkServiceList(streamClient) | ||
| for _, item := range list { | ||
| q.cache.Add(item.GetName(), []*registry.NetworkService{item.Clone()}) | ||
| } | ||
| } | ||
| var resultStreamChannel = make(chan *registry.NetworkServiceResponse, len(list)) | ||
| for _, item := range list { | ||
| resultStreamChannel <- ®istry.NetworkServiceResponse{NetworkService: item} | ||
| } | ||
| close(resultStreamChannel) | ||
| return streamchannel.NewNetworkServiceFindClient(ctx, resultStreamChannel), nil | ||
| } | ||
|
|
||
| func (q *queryCacheNSClient) Unregister(ctx context.Context, in *registry.NetworkService, opts ...grpc.CallOption) (*empty.Empty, error) { | ||
| resp, err := next.NetworkServiceRegistryClient(ctx).Unregister(ctx, in, opts...) | ||
| if err == nil { | ||
| q.cache.Remove(in.GetName()) | ||
| } | ||
| return resp, err | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters