/
log_field_kv.go
86 lines (73 loc) · 2.63 KB
/
log_field_kv.go
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// Copyright 2021 iLogtail Authors
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package validator
import (
"context"
"regexp"
"github.com/mitchellh/mapstructure"
"github.com/alibaba/ilogtail/pkg/doc"
"github.com/alibaba/ilogtail/pkg/logger"
"github.com/alibaba/ilogtail/pkg/protocol"
)
const fieldsKVLogValidatorName = "log_content_kv_regex"
type fieldsKVLogValidator struct {
ExpectKeyValues map[string]string `mapstructure:"expect_key_value_regex" comment:"expected got key values"`
kvRegexps map[string]*regexp.Regexp
}
func (f *fieldsKVLogValidator) Description() string {
return "this is a log content key value validator to check received log from subscriber"
}
func (f *fieldsKVLogValidator) Valid(group *protocol.LogGroup) (reports []*Report) {
for _, log := range group.Logs {
for k, reg := range f.kvRegexps {
for _, content := range log.Contents {
if content.Key == k {
if !reg.MatchString(content.Value) {
logger.Debugf(context.Background(), "want contains KV %s:%s, but got %s:%s", k, reg.String(), content.Key, content.Value)
reports = append(reports, &Report{Validator: fieldsKVLogValidatorName, Name: "kv_equal", Want: k + ":" + reg.String(),
Got: content.Key + ":" + content.Value})
}
goto find
}
}
logger.Debugf(context.Background(), "want contains KV %s:%s, but not found")
reports = append(reports, &Report{Validator: fieldsKVLogValidatorName, Name: "kv_equal", Want: k + ":" + reg.String(),
NotFound: k + ":" + reg.String()})
find:
}
}
return
}
func (f *fieldsKVLogValidator) Name() string {
return fieldsKVLogValidatorName
}
func init() {
RegisterLogValidatorCreator(fieldsKVLogValidatorName, func(spec map[string]interface{}) (LogValidator, error) {
f := new(fieldsKVLogValidator)
err := mapstructure.Decode(spec, f)
if err != nil {
return nil, err
}
f.kvRegexps = make(map[string]*regexp.Regexp)
for k, v := range f.ExpectKeyValues {
reg, err := regexp.Compile(v)
if err != nil {
return nil, err
}
f.kvRegexps[k] = reg
}
return f, nil
})
doc.Register("log_validator", fieldsKVLogValidatorName, new(fieldsKVLogValidator))
}