| package trafficstats |
| |
| /* |
| * 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. |
| */ |
| |
| import ( |
| "errors" |
| "fmt" |
| |
| "github.com/apache/trafficcontrol/lib/go-log" |
| "github.com/apache/trafficcontrol/lib/go-tc" |
| influx "github.com/influxdata/influxdb/client/v2" |
| ) |
| |
| func getSummary(db string, q influx.Query, client *influx.Client) (*tc.TrafficStatsSummary, error) { |
| s := tc.TrafficStatsSummary{} |
| msgs := []influx.Message{} |
| log.Debugf("InfluxDB SummaryQuery: %+v", q) |
| |
| defer log.Debugf("Messages from summary query: %s", tc.MessagesToString(msgs)) |
| |
| resp, err := (*client).Query(q) |
| if err != nil { |
| return nil, err |
| } |
| |
| if resp.Results != nil && len(resp.Results) == 1 { |
| r := resp.Results[0] |
| if r.Messages != nil { |
| for _, m := range r.Messages { |
| if m != nil { |
| msgs = append(msgs, *m) |
| } |
| } |
| } |
| |
| // Perl API handled no series as a non error |
| // Matching implementation |
| if len(r.Series) == 0 { |
| return nil, nil |
| } |
| |
| if len(r.Series) != 1 { |
| return nil, fmt.Errorf("Improper number of series: %d", len(r.Series)) |
| } |
| |
| series := r.Series[0] |
| |
| if len(series.Values) != 1 { |
| return nil, fmt.Errorf("Improper number of returned rows: %d", len(r.Series[0].Values)) |
| } |
| |
| vals := series.Values[0] |
| if len(vals) != 8 || len(series.Columns) != 8 { |
| return nil, fmt.Errorf("Improper number of returned values in row: %d (%d cols)", len(vals), len(series.Columns)) |
| } |
| |
| mappedValues := map[string]interface{}{} |
| for i, v := range vals { |
| mappedValues[series.Columns[i]] = v |
| } |
| |
| var err error |
| if s.Average, err = extractFloat64("average", mappedValues); err != nil { |
| return nil, err |
| } |
| |
| if s.Count, err = extractUInt("count", mappedValues); err != nil { |
| return nil, err |
| } |
| |
| if s.FifthPercentile, err = extractFloat64("fifthPercentile", mappedValues); err != nil { |
| return nil, err |
| } |
| |
| if s.Max, err = extractFloat64("max", mappedValues); err != nil { |
| return nil, err |
| } |
| |
| if s.Min, err = extractFloat64("min", mappedValues); err != nil { |
| return nil, err |
| } |
| |
| if s.Max, err = extractFloat64("max", mappedValues); err != nil { |
| return nil, err |
| } |
| |
| if s.NinetyEighthPercentile, err = extractFloat64("ninetyEighthPercentile", mappedValues); err != nil { |
| return nil, err |
| } |
| |
| if s.NinetyFifthPercentile, err = extractFloat64("ninetyFifthPercentile", mappedValues); err != nil { |
| return nil, err |
| } |
| |
| } else { |
| log.Debugf("InfluxDB summary response: %+v", resp) |
| return nil, errors.New("'results' missing or improper") |
| } |
| |
| if resp.Error() != nil { |
| log.Debugf("response error, summary object was: %+v", s) |
| return nil, resp.Error() |
| } |
| |
| return &s, nil |
| } |