| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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 cache |
| |
| import ( |
| "fmt" |
| "github.com/apache/servicecomb-service-center/pkg/cache" |
| "github.com/apache/servicecomb-service-center/pkg/log" |
| "github.com/apache/servicecomb-service-center/pkg/util" |
| pb "github.com/apache/servicecomb-service-center/server/core/proto" |
| serviceUtil "github.com/apache/servicecomb-service-center/server/service/util" |
| "golang.org/x/net/context" |
| "sort" |
| "strings" |
| ) |
| |
| type TagsFilter struct { |
| } |
| |
| func (f *TagsFilter) Name(ctx context.Context, _ *cache.Node) string { |
| tags, _ := ctx.Value(CTX_FIND_TAGS).([]string) |
| sort.Strings(tags) |
| return strings.Join(tags, ",") |
| } |
| |
| func (f *TagsFilter) Init(ctx context.Context, parent *cache.Node) (node *cache.Node, err error) { |
| tags, _ := ctx.Value(CTX_FIND_TAGS).([]string) |
| if len(tags) == 0 { |
| node = cache.NewNode() |
| node.Cache = parent.Cache |
| return |
| } |
| |
| var ids []string |
| |
| targetDomainProject := util.ParseTargetDomainProject(ctx) |
| pCopy := *parent.Cache.Get(CACHE_FIND).(*VersionRuleCacheItem) |
| |
| loopProviderIds: |
| for _, providerServiceId := range pCopy.ServiceIds { |
| tagsFromETCD, err := serviceUtil.GetTagsUtils(ctx, targetDomainProject, providerServiceId) |
| if err != nil { |
| consumer := ctx.Value(CTX_FIND_CONSUMER).(*pb.MicroService) |
| provider := ctx.Value(CTX_FIND_PROVIDER).(*pb.MicroServiceKey) |
| findFlag := fmt.Sprintf("consumer '%s' find provider %s/%s/%s", consumer.ServiceId, |
| provider.AppId, provider.ServiceName, provider.Version) |
| log.Errorf(err, "TagsFilter failed, %s", findFlag) |
| return nil, err |
| } |
| if len(tagsFromETCD) == 0 { |
| continue |
| } |
| for _, tag := range tags { |
| if _, ok := tagsFromETCD[tag]; !ok { |
| continue loopProviderIds |
| } |
| } |
| ids = append(ids, providerServiceId) |
| } |
| |
| pCopy.ServiceIds = ids |
| |
| node = cache.NewNode() |
| node.Cache.Set(CACHE_FIND, &pCopy) |
| return |
| } |