| // Licensed to 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. Apache Software Foundation (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 dquery |
| |
| import ( |
| "context" |
| "time" |
| |
| "github.com/apache/skywalking-banyandb/api/common" |
| commonv1 "github.com/apache/skywalking-banyandb/api/proto/banyandb/common/v1" |
| measurev1 "github.com/apache/skywalking-banyandb/api/proto/banyandb/measure/v1" |
| "github.com/apache/skywalking-banyandb/banyand/measure" |
| "github.com/apache/skywalking-banyandb/pkg/bus" |
| "github.com/apache/skywalking-banyandb/pkg/logger" |
| "github.com/apache/skywalking-banyandb/pkg/query/executor" |
| logical_measure "github.com/apache/skywalking-banyandb/pkg/query/logical/measure" |
| ) |
| |
| type measureQueryProcessor struct { |
| measureService measure.SchemaService |
| broadcaster bus.Broadcaster |
| *queryService |
| } |
| |
| func (p *measureQueryProcessor) Rev(message bus.Message) (resp bus.Message) { |
| queryCriteria, ok := message.Data().(*measurev1.QueryRequest) |
| now := time.Now().UnixNano() |
| if !ok { |
| resp = bus.NewMessage(bus.MessageID(now), common.NewError("invalid event data type")) |
| return |
| } |
| // TODO: support multiple groups |
| if len(queryCriteria.Groups) > 1 { |
| resp = bus.NewMessage(bus.MessageID(now), common.NewError("only support one group in the query request")) |
| return |
| } |
| ml := p.log.Named("measure", queryCriteria.Groups[0], queryCriteria.Name) |
| if e := ml.Debug(); e.Enabled() { |
| e.RawJSON("req", logger.Proto(queryCriteria)).Msg("received a query event") |
| } |
| |
| meta := &commonv1.Metadata{ |
| Name: queryCriteria.Name, |
| Group: queryCriteria.Groups[0], |
| } |
| ec, err := p.measureService.Measure(meta) |
| if err != nil { |
| resp = bus.NewMessage(bus.MessageID(now), common.NewError("fail to get execution context for measure %s: %v", meta.GetName(), err)) |
| return |
| } |
| |
| s, err := logical_measure.BuildSchema(ec.GetSchema(), ec.GetIndexRules()) |
| if err != nil { |
| resp = bus.NewMessage(bus.MessageID(now), common.NewError("fail to build schema for measure %s: %v", meta.GetName(), err)) |
| return |
| } |
| |
| plan, err := logical_measure.DistributedAnalyze(queryCriteria, s) |
| if err != nil { |
| resp = bus.NewMessage(bus.MessageID(now), common.NewError("fail to analyze the query request for measure %s: %v", meta.GetName(), err)) |
| return |
| } |
| |
| if e := ml.Debug(); e.Enabled() { |
| e.Str("plan", plan.String()).Msg("query plan") |
| } |
| |
| mIterator, err := plan.(executor.MeasureExecutable).Execute(executor.WithDistributedExecutionContext(context.Background(), &distributedContext{ |
| Broadcaster: p.broadcaster, |
| timeRange: queryCriteria.TimeRange, |
| })) |
| if err != nil { |
| ml.Error().Err(err).RawJSON("req", logger.Proto(queryCriteria)).Msg("fail to close the query plan") |
| resp = bus.NewMessage(bus.MessageID(now), common.NewError("fail to execute the query plan for measure %s: %v", meta.GetName(), err)) |
| return |
| } |
| defer func() { |
| if err = mIterator.Close(); err != nil { |
| ml.Error().Err(err).RawJSON("req", logger.Proto(queryCriteria)).Msg("fail to close the query plan") |
| } |
| }() |
| result := make([]*measurev1.DataPoint, 0) |
| for mIterator.Next() { |
| current := mIterator.Current() |
| if len(current) > 0 { |
| result = append(result, current[0]) |
| } |
| } |
| if e := ml.Debug(); e.Enabled() { |
| e.RawJSON("ret", logger.Proto(&measurev1.QueryResponse{DataPoints: result})).Msg("got a measure") |
| } |
| resp = bus.NewMessage(bus.MessageID(now), &measurev1.QueryResponse{DataPoints: result}) |
| return |
| } |