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https://github.com/cgrates/cgrates.git
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92 lines
2.3 KiB
Go
92 lines
2.3 KiB
Go
/*
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Real-time Online/Offline Charging System (OCS) for Telecom & ISP environments
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Copyright (C) ITsysCOM GmbH
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>
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*/
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package ees
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import (
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"context"
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"sync"
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"github.com/cgrates/cgrates/config"
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"github.com/cgrates/cgrates/utils"
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kafka "github.com/segmentio/kafka-go"
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)
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// NewKafkaEE creates a kafka poster
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func NewKafkaEE(cfg *config.EventExporterCfg, dc *utils.SafeMapStorage) *KafkaEE {
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kfkPstr := &KafkaEE{
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cfg: cfg,
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dc: dc,
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topic: utils.DefaultQueueID,
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}
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if vals, has := cfg.Opts[utils.KafkaTopic]; has {
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kfkPstr.topic = utils.IfaceAsString(vals)
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}
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return kfkPstr
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}
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// KafkaEE is a kafka poster
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type KafkaEE struct {
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topic string // identifier of the CDR queue where we publish
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writer *kafka.Writer
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cfg *config.EventExporterCfg
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dc *utils.SafeMapStorage
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reqs *concReq
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sync.RWMutex // protect connection
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bytePreparing
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}
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func (pstr *KafkaEE) Cfg() *config.EventExporterCfg { return pstr.cfg }
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func (pstr *KafkaEE) Connect() (_ error) {
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pstr.Lock()
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if pstr.writer == nil {
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pstr.writer = kafka.NewWriter(kafka.WriterConfig{
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Brokers: []string{pstr.Cfg().ExportPath},
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MaxAttempts: pstr.Cfg().Attempts,
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Topic: pstr.topic,
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})
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}
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pstr.Unlock()
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return
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}
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func (pstr *KafkaEE) ExportEvent(content interface{}, key string) (err error) {
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pstr.reqs.get()
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pstr.RLock()
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err = pstr.writer.WriteMessages(context.Background(), kafka.Message{
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Key: []byte(key),
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Value: content.([]byte),
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})
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pstr.RUnlock()
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pstr.reqs.done()
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return
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}
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func (pstr *KafkaEE) Close() (err error) {
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pstr.Lock()
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if pstr.writer != nil {
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err = pstr.writer.Close()
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pstr.writer = nil
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}
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pstr.Unlock()
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return
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}
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func (pstr *KafkaEE) GetMetrics() *utils.SafeMapStorage { return pstr.dc }
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