output

Documentation

Index

• func Write(w io.Writer, records []parser.Record, ids []int, format Format) error
• func WriteGroups(w io.Writer, groups []GroupResult, format Format) error
• func WritePatterns(w io.Writer, results []PatternResult, format Format) error
• func WriteWithColumns(w io.Writer, records []parser.Record, ids []int, format Format, ...) error
• type Format
  • func ParseFormat(s string) (Format, error)
• type GroupResult
  • func GroupBy(records []parser.Record, ids []int, field string) []GroupResult
  • func TopN(groups []GroupResult, n int) []GroupResult
• type PatternResult

Functions

func Write

func Write(w io.Writer, records []parser.Record, ids []int, format Format) error

Write writes the matched records to w in the given format.

func WriteGroups

func WriteGroups(w io.Writer, groups []GroupResult, format Format) error

WriteGroups writes aggregation results to w in the given format.

func WritePatterns

func WritePatterns(w io.Writer, results []PatternResult, format Format) error

WritePatterns writes pattern clustering results to w in the given format.

func WriteWithColumns

func WriteWithColumns(w io.Writer, records []parser.Record, ids []int, format Format, columns []string) error

WriteWithColumns writes matched records using the given columns as header. If columns is nil, falls back to Write().

Types

type Format

type Format string

Format represents an output format.

const (
	FormatRaw  Format = "raw"
	FormatJSON Format = "json"
	FormatCSV  Format = "csv"
)

func ParseFormat

func ParseFormat(s string) (Format, error)

ParseFormat parses a format string, returning an error for unknown formats.

type GroupResult

type GroupResult struct {
	Value string `json:"value"`
	Count int    `json:"count"`
}

GroupResult holds a field value and its count.

func GroupBy

func GroupBy(records []parser.Record, ids []int, field string) []GroupResult

GroupBy counts records per unique value of the given field. Results are sorted descending by count.

func TopN

func TopN(groups []GroupResult, n int) []GroupResult

TopN returns the first n results, or all if n <= 0.

type PatternResult

type PatternResult struct {
	Template string `json:"template"`
	Count    int    `json:"count"`
}

PatternResult holds a message template and its occurrence count.