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47ca411163
- Avoids code duplication across the other targets. By having a centralized function call. - Reduce the room for race.
126 lines
2.8 KiB
Go
126 lines
2.8 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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"crypto/tls"
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"encoding/json"
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"errors"
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"net/url"
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"github.com/nsqio/go-nsq"
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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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)
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// NSQArgs - NSQ target arguments.
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type NSQArgs struct {
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Enable bool `json:"enable"`
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NSQDAddress xnet.Host `json:"nsqdAddress"`
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Topic string `json:"topic"`
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TLS struct {
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Enable bool `json:"enable"`
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SkipVerify bool `json:"skipVerify"`
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} `json:"tls"`
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}
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// Validate NSQArgs fields
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func (n NSQArgs) Validate() error {
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if !n.Enable {
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return nil
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}
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if n.NSQDAddress.IsEmpty() {
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return errors.New("empty nsqdAddress")
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}
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if n.Topic == "" {
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return errors.New("empty topic")
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}
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return nil
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}
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// NSQTarget - NSQ target.
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type NSQTarget struct {
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id event.TargetID
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args NSQArgs
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producer *nsq.Producer
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}
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// ID - returns target ID.
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func (target *NSQTarget) ID() event.TargetID {
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return target.id
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}
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// Save - Sends event directly without persisting.
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func (target *NSQTarget) Save(eventData event.Event) error {
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return target.send(eventData)
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}
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func (target *NSQTarget) send(eventData event.Event) (err 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{EventName: eventData.EventName, Key: key, Records: []event.Event{eventData}})
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if err != nil {
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return err
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}
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err = target.producer.Publish(target.args.Topic, data)
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return err
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}
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// Send - interface compatible method does no-op.
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func (target *NSQTarget) Send(eventKey string) error {
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return nil
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}
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// Close - closes underneath connections to NSQD server.
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func (target *NSQTarget) Close() (err error) {
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// this blocks until complete:
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target.producer.Stop()
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return nil
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}
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// NewNSQTarget - creates new NSQ target.
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func NewNSQTarget(id string, args NSQArgs) (*NSQTarget, error) {
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config := nsq.NewConfig()
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if args.TLS.Enable {
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config.TlsV1 = true
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config.TlsConfig = &tls.Config{
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InsecureSkipVerify: args.TLS.SkipVerify,
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}
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}
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producer, err := nsq.NewProducer(args.NSQDAddress.String(), config)
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if err != nil {
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return nil, err
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}
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return &NSQTarget{
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id: event.TargetID{ID: id, Name: "nsq"},
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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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