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consume.go
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consume.go
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// Copyright (c) 2021 Terminus, Inc.
//
// 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 persist
import (
"encoding/json"
"time"
"github.com/erda-project/erda/modules/msp/apm/exception"
)
func (p *provider) decodeEvent(key, value []byte, topic *string, timestamp time.Time) (interface{}, error) {
data := &exception.Erda_event{}
if err := json.Unmarshal(value, data); err != nil {
p.stats.DecodeError(value, err)
if p.Cfg.PrintInvalidEvent {
p.Log.Warnf("unknown format event data: %s", string(value))
} else {
p.Log.Warnf("failed to decode event: %v", err)
}
return nil, err
}
if err := p.validator.Validate(data); err != nil {
p.stats.ValidateError(data)
if p.Cfg.PrintInvalidEvent {
p.Log.Warnf("invalid event data: %s", string(value))
} else {
p.Log.Warnf("invalid event: %v", err)
}
return nil, err
}
if err := p.metadata.Process(data); err != nil {
p.stats.MetadataError(data, err)
p.Log.Errorf("failed to process event metadata: %v", err)
}
return data, nil
}
func (p *provider) handleReadError(err error) error {
p.Log.Errorf("failed to read event from kafka: %s", err)
return nil // return nil to continue read
}
func (p *provider) handleWriteError(list []interface{}, err error) error {
p.Log.Errorf("failed to write event into storage: %s", err)
return nil // return nil to continue consume
}
func (p *provider) confirmErrorHandler(err error) error {
p.Log.Errorf("failed to confirm event from kafka: %s", err)
return err // return error to exit
}