cloudflare/pint
Publicmirrored from https://github.com/cloudflare/pintAvailable
internal/parser/utils/aggregation.go
94lines · modeblame
e6be01a8Lukasz Mierzwa4 years ago | 1 | package utils |
| 2 | | |
| 3 | import ( | |
| 4 | "github.com/cloudflare/pint/internal/parser" | |
| 5 | | |
| 6 | promParser "github.com/prometheus/prometheus/promql/parser" | |
| 7 | "github.com/rs/zerolog/log" | |
| 8 | ) | |
| 9 | | |
b92428fbLukasz Mierzwa4 years ago | 10 | func HasOuterAggregation(node *parser.PromQLNode) (aggs []*promParser.AggregateExpr) { |
e6be01a8Lukasz Mierzwa4 years ago | 11 | if n, ok := node.Node.(*promParser.AggregateExpr); ok { |
| 12 | switch n.Op { | |
| 13 | case promParser.SUM: | |
| 14 | case promParser.MIN: | |
| 15 | case promParser.MAX: | |
| 16 | case promParser.AVG: | |
| 17 | case promParser.GROUP: | |
| 18 | case promParser.STDDEV: | |
| 19 | case promParser.STDVAR: | |
| 20 | case promParser.COUNT: | |
| 21 | case promParser.COUNT_VALUES: | |
| 22 | case promParser.BOTTOMK: | |
| 23 | goto NEXT | |
| 24 | case promParser.TOPK: | |
| 25 | goto NEXT | |
| 26 | case promParser.QUANTILE: | |
| 27 | default: | |
| 28 | log.Warn().Str("op", n.Op.String()).Msg("Unsupported aggregation operation") | |
| 29 | } | |
b92428fbLukasz Mierzwa4 years ago | 30 | aggs = append(aggs, n) |
| 31 | return aggs | |
e6be01a8Lukasz Mierzwa4 years ago | 32 | } |
| 33 | | |
| 34 | NEXT: | |
b92428fbLukasz Mierzwa4 years ago | 35 | if n, ok := node.Node.(*promParser.BinaryExpr); ok { |
3b6c7e83Lukasz Mierzwa4 years ago | 36 | if n.VectorMatching != nil { |
| 37 | switch n.VectorMatching.Card { | |
| 38 | case promParser.CardOneToOne: | |
| 39 | case promParser.CardOneToMany: | |
| 40 | for i, child := range node.Children { | |
| 41 | if i == len(node.Children)-1 { | |
| 42 | a := HasOuterAggregation(child) | |
| 43 | if len(a) > 0 && !a[0].Without { | |
| 44 | a[0].Grouping = append(a[0].Grouping, n.VectorMatching.Include...) | |
| 45 | } | |
| 46 | return a | |
| 47 | } | |
| 48 | } | |
| 49 | case promParser.CardManyToOne: | |
| 50 | a := HasOuterAggregation(node.Children[0]) | |
| 51 | if len(a) > 0 && !a[0].Without { | |
| 52 | a[0].Grouping = append(a[0].Grouping, n.VectorMatching.Include...) | |
| 53 | } | |
| 54 | return a | |
| 55 | case promParser.CardManyToMany: | |
| 56 | default: | |
| 57 | log.Warn().Str("matching", n.VectorMatching.Card.String()).Msg("Unsupported VectorMatching operation") | |
| 58 | } | |
| 59 | } | |
| 60 | | |
b92428fbLukasz Mierzwa4 years ago | 61 | if n.Op.IsComparisonOperator() { |
3b6c7e83Lukasz Mierzwa4 years ago | 62 | for i, child := range node.Children { |
| 63 | if n.VectorMatching != nil { | |
| 64 | a := HasOuterAggregation(child) | |
| 65 | if len(a) > 0 && !a[0].Without { | |
| 66 | a[0].Grouping = append(a[0].Grouping, n.VectorMatching.Include...) | |
| 67 | } | |
| 68 | return a | |
| 69 | } | |
| 70 | if i == 0 { | |
| 71 | return HasOuterAggregation(child) | |
| 72 | } | |
b92428fbLukasz Mierzwa4 years ago | 73 | } |
| 74 | } else { | |
| 75 | switch n.Op { | |
| 76 | case promParser.LOR: | |
| 77 | for _, child := range node.Children { | |
| 78 | aggs = append(aggs, HasOuterAggregation(child)...) | |
| 79 | } | |
| 80 | return aggs | |
| 81 | case promParser.DIV, promParser.LUNLESS, promParser.LAND: | |
| 82 | for _, child := range node.Children { | |
| 83 | return HasOuterAggregation(child) | |
| 84 | } | |
| 85 | } | |
| 86 | } | |
e6be01a8Lukasz Mierzwa4 years ago | 87 | } |
| 88 | | |
| 89 | for _, child := range node.Children { | |
b92428fbLukasz Mierzwa4 years ago | 90 | aggs = append(aggs, HasOuterAggregation(child)...) |
e6be01a8Lukasz Mierzwa4 years ago | 91 | } |
| 92 | | |
b92428fbLukasz Mierzwa4 years ago | 93 | return aggs |
e6be01a8Lukasz Mierzwa4 years ago | 94 | } |