parsers

Documentation

Index

• type Config
• type Parser
  • func NewCollectdParser(authFile string, securityLevel string, typesDB []string, split string) (Parser, error)
  • func NewDropwizardParser(metricRegistryPath string, timePath string, timeFormat string, tagsPath string, ...) (Parser, error)
  • func NewFormUrlencodedParser(metricName string, defaultTags map[string]string, tagKeys []string) (Parser, error)
  • func NewGraphiteParser(separator string, templates []string, defaultTags map[string]string) (Parser, error)
  • func NewInfluxParser() (Parser, error)
  • func NewLogFmtParser(metricName string, defaultTags map[string]string) (Parser, error)
  • func NewNagiosParser() (Parser, error)
  • func NewParser(config *Config) (Parser, error)
  • func NewValueParser(metricName string, dataType string, defaultTags map[string]string) (Parser, error)
  • func NewWavefrontParser(defaultTags map[string]string) (Parser, error)
• type ParserFunc
• type ParserFuncInput
• type ParserInput

Types

type Config

type Config struct {
	// Dataformat can be one of: json, influx, graphite, value, nagios
	DataFormat string `toml:"data_format"`

	// Separator only applied to Graphite data.
	Separator string `toml:"separator"`
	// Templates only apply to Graphite data.
	Templates []string `toml:"templates"`

	// TagKeys only apply to JSON data
	TagKeys []string `toml:"tag_keys"`
	// Array of glob pattern strings keys that should be added as string fields.
	JSONStringFields []string `toml:"json_string_fields"`

	JSONNameKey string `toml:"json_name_key"`
	// MetricName applies to JSON & value. This will be the name of the measurement.
	MetricName string `toml:"metric_name"`

	// holds a gjson path for json parser
	JSONQuery string `toml:"json_query"`

	// key of time
	JSONTimeKey string `toml:"json_time_key"`

	// time format
	JSONTimeFormat string `toml:"json_time_format"`

	// default timezone
	JSONTimezone string `toml:"json_timezone"`

	// Whether to continue if a JSON object can't be coerced
	JSONStrict bool `toml:"json_strict"`

	// Authentication file for collectd
	CollectdAuthFile string `toml:"collectd_auth_file"`
	// One of none (default), sign, or encrypt
	CollectdSecurityLevel string `toml:"collectd_security_level"`
	// Dataset specification for collectd
	CollectdTypesDB []string `toml:"collectd_types_db"`

	// whether to split or join multivalue metrics
	CollectdSplit string `toml:"collectd_split"`

	// DataType only applies to value, this will be the type to parse value to
	DataType string `toml:"data_type"`

	// DefaultTags are the default tags that will be added to all parsed metrics.
	DefaultTags map[string]string `toml:"default_tags"`

	// an optional json path containing the metric registry object
	// if left empty, the whole json object is parsed as a metric registry
	DropwizardMetricRegistryPath string `toml:"dropwizard_metric_registry_path"`
	// an optional json path containing the default time of the metrics
	// if left empty, the processing time is used
	DropwizardTimePath string `toml:"dropwizard_time_path"`
	// time format to use for parsing the time field
	// defaults to time.RFC3339
	DropwizardTimeFormat string `toml:"dropwizard_time_format"`
	// an optional json path pointing to a json object with tag key/value pairs
	// takes precedence over DropwizardTagPathsMap
	DropwizardTagsPath string `toml:"dropwizard_tags_path"`
	// an optional map containing tag names as keys and json paths to retrieve the tag values from as values
	// used if TagsPath is empty or doesn't return any tags
	DropwizardTagPathsMap map[string]string `toml:"dropwizard_tag_paths_map"`

	//grok patterns
	GrokPatterns           []string `toml:"grok_patterns"`
	GrokNamedPatterns      []string `toml:"grok_named_patterns"`
	GrokCustomPatterns     string   `toml:"grok_custom_patterns"`
	GrokCustomPatternFiles []string `toml:"grok_custom_pattern_files"`
	GrokTimezone           string   `toml:"grok_timezone"`
	GrokUniqueTimestamp    string   `toml:"grok_unique_timestamp"`

	//csv configuration
	CSVColumnNames       []string `toml:"csv_column_names"`
	CSVColumnTypes       []string `toml:"csv_column_types"`
	CSVComment           string   `toml:"csv_comment"`
	CSVDelimiter         string   `toml:"csv_delimiter"`
	CSVHeaderRowCount    int      `toml:"csv_header_row_count"`
	CSVMeasurementColumn string   `toml:"csv_measurement_column"`
	CSVSkipColumns       int      `toml:"csv_skip_columns"`
	CSVSkipRows          int      `toml:"csv_skip_rows"`
	CSVTagColumns        []string `toml:"csv_tag_columns"`
	CSVTimestampColumn   string   `toml:"csv_timestamp_column"`
	CSVTimestampFormat   string   `toml:"csv_timestamp_format"`
	CSVTimezone          string   `toml:"csv_timezone"`
	CSVTrimSpace         bool     `toml:"csv_trim_space"`

	// FormData configuration
	FormUrlencodedTagKeys []string `toml:"form_urlencoded_tag_keys"`
}

Config is a struct that covers the data types needed for all parser types, and can be used to instantiate _any_ of the parsers.

type Parser

type Parser interface {
	// Parse takes a byte buffer separated by newlines
	// ie, `cpu.usage.idle 90\ncpu.usage.busy 10`
	// and parses it into metrics
	//
	// Must be thread-safe.
	Parse(buf []byte) ([]cua.Metric, error)

	// ParseLine takes a single string metric
	// ie, "cpu.usage.idle 90"
	// and parses it into a metric.
	//
	// Must be thread-safe.
	ParseLine(line string) (cua.Metric, error)

	// SetDefaultTags tells the parser to add all of the given tags
	// to each parsed metric.
	// NOTE: do _not_ modify the map after you've passed it here!!
	SetDefaultTags(tags map[string]string)
}

Parser is an interface defining functions that a parser plugin must satisfy.

func NewCollectdParser

func NewCollectdParser(
	authFile string,
	securityLevel string,
	typesDB []string,
	split string,
) (Parser, error)

func NewDropwizardParser

func NewDropwizardParser(
	metricRegistryPath string,
	timePath string,
	timeFormat string,
	tagsPath string,
	tagPathsMap map[string]string,
	defaultTags map[string]string,
	separator string,
	templates []string,

) (Parser, error)

func NewFormUrlencodedParser

func NewFormUrlencodedParser(
	metricName string,
	defaultTags map[string]string,
	tagKeys []string,
) (Parser, error)

func NewGraphiteParser

func NewGraphiteParser(
	separator string,
	templates []string,
	defaultTags map[string]string,
) (Parser, error)

func NewInfluxParser

func NewInfluxParser() (Parser, error)

func NewLogFmtParser

func NewLogFmtParser(metricName string, defaultTags map[string]string) (Parser, error)

NewLogFmtParser returns a logfmt parser with the default options.

func NewNagiosParser

func NewNagiosParser() (Parser, error)

func NewParser

func NewParser(config *Config) (Parser, error)

NewParser returns a Parser interface based on the given config.

func NewValueParser

func NewValueParser(
	metricName string,
	dataType string,
	defaultTags map[string]string,
) (Parser, error)

func NewWavefrontParser

func NewWavefrontParser(defaultTags map[string]string) (Parser, error)

type ParserFunc

type ParserFunc func() (Parser, error)

type ParserFuncInput

type ParserFuncInput interface {
	// GetParser returns a new parser.
	SetParserFunc(fn ParserFunc)
}

ParserFuncInput is an interface for input plugins that are able to parse arbitrary data formats.

type ParserInput

type ParserInput interface {
	// SetParser sets the parser function for the interface
	SetParser(parser Parser)
}

ParserInput is an interface for input plugins that are able to parse arbitrary data formats.