| /* |
| * 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 label |
| |
| import ( |
| "context" |
| "fmt" |
| "github.com/apache/servicecomb-kie/pkg/model" |
| "github.com/apache/servicecomb-kie/server/service" |
| "github.com/apache/servicecomb-kie/server/service/mongo/session" |
| "github.com/go-mesh/openlogging" |
| "go.mongodb.org/mongo-driver/bson" |
| "go.mongodb.org/mongo-driver/bson/primitive" |
| "go.mongodb.org/mongo-driver/mongo/options" |
| ) |
| |
| const ( |
| defaultLabels = "default" |
| ) |
| |
| //FindLabels find label doc by labels and project, check if the project has certain labels |
| //if map is empty. will return default labels doc which has no labels |
| func FindLabels(ctx context.Context, domain, project string, labels map[string]string) (*model.LabelDoc, error) { |
| c, err := session.GetClient() |
| if err != nil { |
| return nil, err |
| } |
| collection := c.Database(session.Name).Collection(session.CollectionLabel) |
| |
| filter := bson.M{"domain": domain, "project": project} |
| for k, v := range labels { |
| filter["labels."+k] = v |
| } |
| if len(labels) == 0 { |
| filter["labels"] = defaultLabels //allow key without labels |
| } |
| cur, err := collection.Find(ctx, filter) |
| if err != nil { |
| |
| return nil, err |
| } |
| defer cur.Close(ctx) |
| if cur.Err() != nil { |
| return nil, err |
| } |
| openlogging.Debug(fmt.Sprintf("find labels [%s] in [%s]", labels, domain)) |
| curLabel := &model.LabelDoc{} //reuse this pointer to reduce GC, only clear label |
| //check label length to get the exact match |
| for cur.Next(ctx) { //although complexity is O(n), but there won't be so much labels |
| curLabel.Labels = nil |
| err := cur.Decode(curLabel) |
| if err != nil { |
| openlogging.Error("decode error: " + err.Error()) |
| return nil, err |
| } |
| if len(curLabel.Labels) == len(labels) { |
| openlogging.Debug("hit exact labels") |
| curLabel.Labels = nil //exact match don't need to return labels |
| return curLabel, nil |
| } |
| |
| } |
| return nil, session.ErrLabelNotExists |
| } |
| |
| //GetLatestLabel query revision table and find maximum revision number |
| func GetLatestLabel(ctx context.Context, labelID string) (*model.LabelRevisionDoc, error) { |
| c, err := session.GetClient() |
| if err != nil { |
| return nil, err |
| } |
| collection := c.Database(session.Name).Collection(session.CollectionLabelRevision) |
| |
| filter := bson.M{"label_id": labelID} |
| |
| cur, err := collection.Find(ctx, filter, |
| options.Find().SetSort(map[string]interface{}{ |
| "revision": -1, |
| }), options.Find().SetLimit(1)) |
| if err != nil { |
| return nil, err |
| } |
| h := &model.LabelRevisionDoc{} |
| var exist bool |
| for cur.Next(ctx) { |
| if err := cur.Decode(h); err != nil { |
| openlogging.Error("decode to KVs error: " + err.Error()) |
| return nil, err |
| } |
| exist = true |
| break |
| } |
| if !exist { |
| return nil, service.ErrRevisionNotExist |
| } |
| return h, nil |
| } |
| |
| //Exist check whether the project has certain label or not and return label ID |
| func Exist(ctx context.Context, domain string, project string, labels map[string]string) (primitive.ObjectID, error) { |
| l, err := FindLabels(ctx, domain, project, labels) |
| if err != nil { |
| if err.Error() == context.DeadlineExceeded.Error() { |
| openlogging.Error("find label failed, dead line exceeded", openlogging.WithTags(openlogging.Tags{ |
| "timeout": session.Timeout, |
| })) |
| return primitive.NilObjectID, fmt.Errorf("operation timout %s", session.Timeout) |
| } |
| return primitive.NilObjectID, err |
| } |
| |
| return l.ID, nil |
| |
| } |
| |
| //CreateLabel create a new label |
| func CreateLabel(ctx context.Context, domain string, labels map[string]string, project string) (*model.LabelDoc, error) { |
| c, err := session.GetClient() |
| if err != nil { |
| return nil, err |
| } |
| l := &model.LabelDoc{ |
| Domain: domain, |
| Labels: labels, |
| Project: project, |
| } |
| collection := c.Database(session.Name).Collection(session.CollectionLabel) |
| res, err := collection.InsertOne(ctx, l) |
| if err != nil { |
| return nil, err |
| } |
| objectID, _ := res.InsertedID.(primitive.ObjectID) |
| l.ID = objectID |
| return l, nil |
| } |