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// SPDX-License-Identifier: GPL-3.0-or-later
package weblog
import (
_ "embed"
"github.com/netdata/netdata/go/go.d.plugin/agent/module"
"github.com/netdata/netdata/go/go.d.plugin/pkg/logs"
)
//go:embed "config_schema.json"
var configSchema string
func init() {
module.Register("web_log", module.Creator{
JobConfigSchema: configSchema,
Create: func() module.Module { return New() },
})
}
func New() *WebLog {
return &WebLog{
Config: Config{
ExcludePath: "*.gz",
GroupRespCodes: true,
ParserConfig: logs.ParserConfig{
LogType: typeAuto,
CSV: logs.CSVConfig{
FieldsPerRecord: -1,
Delimiter: " ",
TrimLeadingSpace: false,
CheckField: checkCSVFormatField,
},
LTSV: logs.LTSVConfig{
FieldDelimiter: "\t",
ValueDelimiter: ":",
},
RegExp: logs.RegExpConfig{},
JSON: logs.JSONConfig{},
},
},
}
}
type (
Config struct {
logs.ParserConfig `yaml:",inline" json:""`
UpdateEvery int `yaml:"update_every" json:"update_every"`
Path string `yaml:"path" json:"path"`
ExcludePath string `yaml:"exclude_path" json:"exclude_path"`
URLPatterns []userPattern `yaml:"url_patterns" json:"url_patterns"`
CustomFields []customField `yaml:"custom_fields" json:"custom_fields"`
CustomTimeFields []customTimeField `yaml:"custom_time_fields" json:"custom_time_fields"`
CustomNumericFields []customNumericField `yaml:"custom_numeric_fields" json:"custom_numeric_fields"`
Histogram []float64 `yaml:"histogram" json:"histogram"`
GroupRespCodes bool `yaml:"group_response_codes" json:"group_response_codes"`
}
userPattern struct {
Name string `yaml:"name" json:"name"`
Match string `yaml:"match" json:"match"`
}
customField struct {
Name string `yaml:"name" json:"name"`
Patterns []userPattern `yaml:"patterns" json:"patterns"`
}
customTimeField struct {
Name string `yaml:"name" json:"name"`
Histogram []float64 `yaml:"histogram" json:"histogram"`
}
customNumericField struct {
Name string `yaml:"name" json:"name"`
Units string `yaml:"units" json:"units"`
Multiplier int `yaml:"multiplier" json:"multiplier"`
Divisor int `yaml:"divisor" json:"divisor"`
}
)
type WebLog struct {
module.Base
Config `yaml:",inline" json:""`
charts *module.Charts
file *logs.Reader
parser logs.Parser
line *logLine
urlPatterns []*pattern
customFields map[string][]*pattern
customTimeFields map[string][]float64
customNumericFields map[string]bool
mx *metricsData
}
func (w *WebLog) Configuration() any {
return w.Config
}
func (w *WebLog) Init() error {
if err := w.createURLPatterns(); err != nil {
w.Errorf("init failed: %v", err)
return err
}
if err := w.createCustomFields(); err != nil {
w.Errorf("init failed: %v", err)
return err
}
if err := w.createCustomTimeFields(); err != nil {
w.Errorf("init failed: %v", err)
return err
}
if err := w.createCustomNumericFields(); err != nil {
w.Errorf("init failed: %v", err)
}
w.createLogLine()
w.mx = newMetricsData(w.Config)
return nil
}
func (w *WebLog) Check() error {
// Note: these inits are here to make auto-detection retry working
if err := w.createLogReader(); err != nil {
w.Warning("check failed: ", err)
return err
}
if err := w.createParser(); err != nil {
w.Warning("check failed: ", err)
return err
}
if err := w.createCharts(w.line); err != nil {
w.Warning("check failed: ", err)
return err
}
return nil
}
func (w *WebLog) Charts() *module.Charts {
return w.charts
}
func (w *WebLog) Collect() map[string]int64 {
mx, err := w.collect()
if err != nil {
w.Error(err)
}
if len(mx) == 0 {
return nil
}
return mx
}
func (w *WebLog) Cleanup() {
if w.file != nil {
_ = w.file.Close()
}
}
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