Ejemplo n.º 1
0
func (p *Parser) Compile() error {
	p.typeMap = make(map[string]map[string]string)
	p.tsMap = make(map[string]map[string]string)
	p.patterns = make(map[string]string)
	p.tsModder = &tsModder{}
	var err error
	p.g, err = grok.NewWithConfig(&grok.Config{NamedCapturesOnly: true})
	if err != nil {
		return err
	}

	p.CustomPatterns = DEFAULT_PATTERNS + p.CustomPatterns

	if len(p.CustomPatterns) != 0 {
		scanner := bufio.NewScanner(strings.NewReader(p.CustomPatterns))
		p.addCustomPatterns(scanner)
	}

	for _, filename := range p.CustomPatternFiles {
		file, err := os.Open(filename)
		if err != nil {
			return err
		}

		scanner := bufio.NewScanner(bufio.NewReader(file))
		p.addCustomPatterns(scanner)
	}

	return p.compileCustomPatterns()
}
Ejemplo n.º 2
0
func (p *Parser) Compile() error {
	p.typeMap = make(map[string]map[string]string)
	p.tsMap = make(map[string]map[string]string)
	p.patterns = make(map[string]string)
	p.tsModder = &tsModder{}
	var err error
	p.g, err = grok.NewWithConfig(&grok.Config{NamedCapturesOnly: true})
	if err != nil {
		return err
	}

	// Give Patterns fake names so that they can be treated as named
	// "custom patterns"
	p.namedPatterns = make([]string, len(p.Patterns))
	for i, pattern := range p.Patterns {
		name := fmt.Sprintf("GROK_INTERNAL_PATTERN_%d", i)
		p.CustomPatterns += "\n" + name + " " + pattern + "\n"
		p.namedPatterns[i] = "%{" + name + "}"
	}

	// Combine user-supplied CustomPatterns with DEFAULT_PATTERNS and parse
	// them together as the same type of pattern.
	p.CustomPatterns = DEFAULT_PATTERNS + p.CustomPatterns
	if len(p.CustomPatterns) != 0 {
		scanner := bufio.NewScanner(strings.NewReader(p.CustomPatterns))
		p.addCustomPatterns(scanner)
	}

	// Parse any custom pattern files supplied.
	for _, filename := range p.CustomPatternFiles {
		file, err := os.Open(filename)
		if err != nil {
			return err
		}

		scanner := bufio.NewScanner(bufio.NewReader(file))
		p.addCustomPatterns(scanner)
	}

	if p.Measurement == "" {
		p.Measurement = "logparser_grok"
	}

	return p.compileCustomPatterns()
}