| /* |
| * 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 kv |
| |
| import ( |
| "context" |
| "fmt" |
| "regexp" |
| "strings" |
| "time" |
| |
| "github.com/apache/servicecomb-kie/pkg/model" |
| "github.com/apache/servicecomb-kie/server/service" |
| "github.com/apache/servicecomb-kie/server/service/mongo/counter" |
| "github.com/apache/servicecomb-kie/server/service/mongo/history" |
| "github.com/apache/servicecomb-kie/server/service/mongo/session" |
| "github.com/go-chassis/openlog" |
| uuid "github.com/satori/go.uuid" |
| "go.mongodb.org/mongo-driver/bson" |
| "go.mongodb.org/mongo-driver/mongo" |
| "go.mongodb.org/mongo-driver/mongo/options" |
| ) |
| |
| //createKey get latest revision from history |
| //and increase revision of label |
| //and insert key |
| func createKey(ctx context.Context, kv *model.KVDoc) (*model.KVDoc, error) { |
| collection := session.GetDB().Collection(session.CollectionKV) |
| var err error |
| kv.ID = uuid.NewV4().String() |
| revision, err := counter.ApplyRevision(ctx, kv.Domain) |
| if err != nil { |
| openlog.Error(err.Error()) |
| return nil, err |
| } |
| kv.UpdateRevision = revision |
| kv.CreateRevision = revision |
| now := time.Now().Unix() |
| kv.CreateTime = now |
| kv.UpdateTime = now |
| _, err = collection.InsertOne(ctx, kv) |
| if err != nil { |
| openlog.Error("create error", openlog.WithTags(openlog.Tags{ |
| "err": err.Error(), |
| "kv": kv, |
| })) |
| return nil, err |
| } |
| err = history.AddHistory(ctx, kv) |
| if err != nil { |
| openlog.Warn( |
| fmt.Sprintf("can not updateKeyValue version for [%s] [%s] in [%s]", |
| kv.Key, kv.Labels, kv.Domain)) |
| } |
| openlog.Debug(fmt.Sprintf("create %s with labels %s value [%s]", kv.Key, kv.Labels, kv.Value)) |
| |
| return kv, nil |
| |
| } |
| |
| //updateKeyValue update key value and add new revision |
| func updateKeyValue(ctx context.Context, kv *model.KVDoc) error { |
| var err error |
| kv.UpdateTime = time.Now().Unix() |
| kv.UpdateRevision, err = counter.ApplyRevision(ctx, kv.Domain) |
| if err != nil { |
| return err |
| } |
| collection := session.GetDB().Collection(session.CollectionKV) |
| ur, err := collection.UpdateOne(ctx, bson.M{"key": kv.Key, "label_format": kv.LabelFormat}, bson.D{ |
| {"$set", bson.D{ |
| {"value", kv.Value}, |
| {"status", kv.Status}, |
| {"checker", kv.Checker}, |
| {"update_time", kv.UpdateTime}, |
| {"update_revision", kv.UpdateRevision}, |
| }}, |
| }) |
| if err != nil { |
| return err |
| } |
| openlog.Debug( |
| fmt.Sprintf("updateKeyValue %s with labels %s value [%s] %d ", |
| kv.Key, kv.Labels, kv.Value, ur.ModifiedCount)) |
| err = history.AddHistory(ctx, kv) |
| if err != nil { |
| openlog.Error( |
| fmt.Sprintf("can not add revision for [%s] [%s] in [%s],err: %s", |
| kv.Key, kv.Labels, kv.Domain, err)) |
| } |
| openlog.Debug( |
| fmt.Sprintf("add history %s with labels %s value [%s] %d ", |
| kv.Key, kv.Labels, kv.Value, ur.ModifiedCount)) |
| return nil |
| |
| } |
| |
| //Extract key values |
| func getValue(str string) string { |
| rex := regexp.MustCompile(`\(([^)]+)\)`) |
| res := rex.FindStringSubmatch(str) |
| return res[len(res)-1] |
| } |
| |
| func findKV(ctx context.Context, domain string, project string, opts service.FindOptions) (*mongo.Cursor, int, error) { |
| collection := session.GetDB().Collection(session.CollectionKV) |
| ctx, _ = context.WithTimeout(ctx, opts.Timeout) |
| filter := bson.M{"domain": domain, "project": project} |
| if opts.Key != "" { |
| filter["key"] = opts.Key |
| switch { |
| case strings.HasPrefix(opts.Key, "beginWith("): |
| value := strings.ReplaceAll(getValue(opts.Key), ".", "\\.") |
| filter["key"] = bson.M{"$regex": value, "$options": "$i"} |
| case strings.HasPrefix(opts.Key, "wildcard("): |
| value := strings.ReplaceAll(getValue(opts.Key), ".", "\\.") |
| value = strings.ReplaceAll(value, "*", ".*") |
| filter["key"] = bson.M{"$regex": value, "$options": "$i"} |
| } |
| } |
| if len(opts.Labels) != 0 { |
| for k, v := range opts.Labels { |
| filter["labels."+k] = v |
| } |
| } |
| opt := options.Find() |
| if opts.Offset != 0 && opts.Limit != 0 { |
| opt = opt.SetLimit(opts.Limit) |
| opt = opt.SetSkip(opts.Offset) |
| } |
| curTotal, err := collection.CountDocuments(ctx, filter) |
| if err != nil { |
| if err.Error() == context.DeadlineExceeded.Error() { |
| openlog.Error(MsgFindKvFailed, openlog.WithTags(openlog.Tags{ |
| "timeout": opts.Timeout, |
| })) |
| return nil, 0, fmt.Errorf(FmtErrFindKvFailed, opts.Timeout) |
| } |
| return nil, 0, err |
| } |
| if opts.Status != "" { |
| filter["status"] = opts.Status |
| } |
| cur, err := collection.Find(ctx, filter, opt) |
| if err != nil { |
| if err.Error() == context.DeadlineExceeded.Error() { |
| openlog.Error(MsgFindKvFailed, openlog.WithTags(openlog.Tags{ |
| "timeout": opts.Timeout, |
| })) |
| return nil, 0, fmt.Errorf(FmtErrFindKvFailed, opts.Timeout) |
| } |
| return nil, 0, err |
| } |
| return cur, int(curTotal), err |
| } |
| func findOneKey(ctx context.Context, filter bson.M) ([]*model.KVDoc, error) { |
| collection := session.GetDB().Collection(session.CollectionKV) |
| sr := collection.FindOne(ctx, filter) |
| if sr.Err() != nil { |
| if sr.Err() == mongo.ErrNoDocuments { |
| return nil, service.ErrKeyNotExists |
| } |
| return nil, sr.Err() |
| } |
| curKV := &model.KVDoc{} |
| err := sr.Decode(curKV) |
| if err != nil { |
| openlog.Error("decode error: " + err.Error()) |
| return nil, err |
| } |
| return []*model.KVDoc{curKV}, nil |
| } |
| |
| //findOneKVAndDelete deletes one kv by id and return the deleted kv as these appeared before deletion |
| func findOneKVAndDelete(ctx context.Context, kvID, project, domain string) (*model.KVDoc, error) { |
| collection := session.GetDB().Collection(session.CollectionKV) |
| sr := collection.FindOneAndDelete(ctx, bson.M{"id": kvID, "project": project, "domain": domain}) |
| if sr.Err() != nil { |
| if sr.Err() == mongo.ErrNoDocuments { |
| return nil, service.ErrKeyNotExists |
| } |
| return nil, sr.Err() |
| } |
| openlog.Info(fmt.Sprintf("delete success,kvID=%s", kvID)) |
| if _, err := counter.ApplyRevision(ctx, domain); err != nil { |
| openlog.Error(fmt.Sprintf("the kv [%s] is deleted, but increase revision failed: [%s]", kvID, err)) |
| return nil, err |
| } |
| err := history.AddDeleteTime(ctx, []string{kvID}, project, domain) |
| if err != nil { |
| openlog.Error(fmt.Sprintf("add delete time to [%s] failed : [%s]", kvID, err)) |
| } |
| curKV := &model.KVDoc{} |
| err = sr.Decode(curKV) |
| if err != nil { |
| openlog.Error("decode error: " + err.Error()) |
| return nil, err |
| } |
| return curKV, nil |
| } |
| |
| //findKVsAndDelete deletes multiple kvs and return the deleted kv list as these appeared before deletion |
| func findKVsAndDelete(ctx context.Context, kvIDs []string, project, domain string) ([]*model.KVDoc, error) { |
| filter := bson.D{{"id", bson.M{"$in": kvIDs}}, {"project", project}, {"domain", domain}} |
| kvs, err := findKeys(ctx, filter, false) |
| if err != nil { |
| if err != service.ErrKeyNotExists { |
| openlog.Error("find Keys error: " + err.Error()) |
| } |
| return nil, err |
| } |
| collection := session.GetDB().Collection(session.CollectionKV) |
| dr, err := collection.DeleteMany(ctx, filter) |
| if err != nil { |
| openlog.Error(fmt.Sprintf("delete kvs [%v] failed : [%v]", kvIDs, err)) |
| return nil, err |
| } |
| if int64(len(kvs)) != dr.DeletedCount { |
| openlog.Warn(fmt.Sprintf("The count of found and the count of deleted are not equal, found %d, deleted %d", len(kvs), dr.DeletedCount)) |
| } else { |
| openlog.Info(fmt.Sprintf("deleted %d kvs, their ids are %v", dr.DeletedCount, kvIDs)) |
| } |
| if _, err := counter.ApplyRevision(ctx, domain); err != nil { |
| openlog.Error(fmt.Sprintf("kvs [%v] are deleted, but increase revision failed: [%v]", kvIDs, err)) |
| return nil, err |
| } |
| err = history.AddDeleteTime(ctx, kvIDs, project, domain) |
| if err != nil { |
| openlog.Error(fmt.Sprintf("add delete time to kvs [%s] failed : [%s]", kvIDs, err)) |
| } |
| return kvs, nil |
| } |
| |
| func findKeys(ctx context.Context, filter interface{}, withoutLabel bool) ([]*model.KVDoc, error) { |
| collection := session.GetDB().Collection(session.CollectionKV) |
| cur, err := collection.Find(ctx, filter) |
| if err != nil { |
| if err.Error() == context.DeadlineExceeded.Error() { |
| openlog.Error("find kvs failed, dead line exceeded", openlog.WithTags(openlog.Tags{ |
| "timeout": session.Timeout, |
| })) |
| return nil, fmt.Errorf("can not find keys due to timout") |
| } |
| return nil, err |
| } |
| defer cur.Close(ctx) |
| if cur.Err() != nil { |
| return nil, err |
| } |
| kvs := make([]*model.KVDoc, 0) |
| for cur.Next(ctx) { |
| curKV := &model.KVDoc{} |
| if err := cur.Decode(curKV); err != nil { |
| openlog.Error("decode to KVs error: " + err.Error()) |
| return nil, err |
| } |
| if withoutLabel { |
| curKV.Labels = nil |
| } |
| kvs = append(kvs, curKV) |
| |
| } |
| if len(kvs) == 0 { |
| return nil, service.ErrKeyNotExists |
| } |
| return kvs, nil |
| } |
| |
| //findKVByLabel get kvs by key and label |
| //key can be empty, then it will return all key values |
| //if key is given, will return 0-1 key value |
| func findKVByLabel(ctx context.Context, domain, labelFormat, key string, project string) ([]*model.KVDoc, error) { |
| filter := bson.M{"label_format": labelFormat, "domain": domain, "project": project} |
| if key != "" { |
| filter["key"] = key |
| return findOneKey(ctx, filter) |
| } |
| return findKeys(ctx, filter, true) |
| |
| } |
| |
| //findKVDocByID get kvs by kv id |
| func findKVDocByID(ctx context.Context, domain, project, kvID string) (*model.KVDoc, error) { |
| filter := bson.M{"id": kvID, "domain": domain, "project": project} |
| kvs, err := findOneKey(ctx, filter) |
| if err != nil { |
| openlog.Error(err.Error()) |
| return nil, err |
| } |
| return kvs[0], nil |
| } |
| |
| func total(ctx context.Context, domain string) (int64, error) { |
| collection := session.GetDB().Collection(session.CollectionKV) |
| filter := bson.M{"domain": domain} |
| total, err := collection.CountDocuments(ctx, filter) |
| if err != nil { |
| openlog.Error("find total number: " + err.Error()) |
| return 0, err |
| } |
| return total, err |
| } |