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e8a008f5b5
Add Validate() to serverConfig to call it at server startup and in Admin SetConfig handler to minimize errors scenario after server restart.
115 lines
2.7 KiB
Go
115 lines
2.7 KiB
Go
/*
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* Minio Cloud Storage, (C) 2018 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package target
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import (
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"encoding/json"
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"errors"
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"net/url"
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"github.com/minio/minio/pkg/event"
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xnet "github.com/minio/minio/pkg/net"
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sarama "gopkg.in/Shopify/sarama.v1"
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)
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// KafkaArgs - Kafka target arguments.
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type KafkaArgs struct {
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Enable bool `json:"enable"`
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Brokers []xnet.Host `json:"brokers"`
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Topic string `json:"topic"`
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}
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// Validate KafkaArgs fields
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func (k KafkaArgs) Validate() error {
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if !k.Enable {
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return nil
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}
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if len(k.Brokers) == 0 {
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return errors.New("no broker address found")
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}
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for _, b := range k.Brokers {
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if _, err := xnet.ParseHost(b.String()); err != nil {
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return err
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}
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}
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return nil
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}
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// KafkaTarget - Kafka target.
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type KafkaTarget struct {
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id event.TargetID
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args KafkaArgs
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producer sarama.SyncProducer
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}
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// ID - returns target ID.
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func (target *KafkaTarget) ID() event.TargetID {
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return target.id
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}
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// Send - sends event to Kafka.
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func (target *KafkaTarget) Send(eventData event.Event) error {
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objectName, err := url.QueryUnescape(eventData.S3.Object.Key)
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if err != nil {
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return err
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}
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key := eventData.S3.Bucket.Name + "/" + objectName
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data, err := json.Marshal(event.Log{eventData.EventName, key, []event.Event{eventData}})
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if err != nil {
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return err
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}
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msg := sarama.ProducerMessage{
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Topic: target.args.Topic,
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Key: sarama.StringEncoder(key),
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Value: sarama.ByteEncoder(data),
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}
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_, _, err = target.producer.SendMessage(&msg)
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return err
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}
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// Close - closes underneath kafka connection.
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func (target *KafkaTarget) Close() error {
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return target.producer.Close()
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}
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// NewKafkaTarget - creates new Kafka target.
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func NewKafkaTarget(id string, args KafkaArgs) (*KafkaTarget, error) {
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config := sarama.NewConfig()
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config.Producer.RequiredAcks = sarama.WaitForAll
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config.Producer.Retry.Max = 10
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config.Producer.Return.Successes = true
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brokers := []string{}
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for _, broker := range args.Brokers {
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brokers = append(brokers, broker.String())
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}
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producer, err := sarama.NewSyncProducer(brokers, config)
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if err != nil {
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return nil, err
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}
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return &KafkaTarget{
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id: event.TargetID{id, "kafka"},
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args: args,
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producer: producer,
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}, nil
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}
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