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Merge pull request #289 from telenornms/rabbitmq_queue
Rabbitmq queue
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| /* | ||
| * skogul, rabbitmq-receiver | ||
| * | ||
| * Copyright (c) 2023 Telenor Norge AS | ||
| * Author(s): | ||
| * - Kamil Oracz <kamil.oracz@telenor.no> | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2.1 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this library; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | ||
| * 02110-1301 USA | ||
| */ | ||
|
|
||
| package receiver | ||
|
|
||
| import ( | ||
| "fmt" | ||
|
|
||
| amqp "github.com/rabbitmq/amqp091-go" | ||
| "github.com/telenornms/skogul" | ||
| ) | ||
|
|
||
| type Rabbitmq struct { | ||
| Username skogul.Secret `doc:"Username for rabbitmq instance"` | ||
| Password skogul.Secret `doc:"Password for rabbitmq instance"` | ||
| Host string `doc:"Hostname for rabbitmq instance. Fallback is localhost"` | ||
| Port string `doc:"Port for rabbitmq instance. Fallback is 5672"` | ||
| Queue string `doc:"Queue to read from"` | ||
| Handler *skogul.HandlerRef `doc:"Handler used to parse, transform and send data. Default skogul."` | ||
| } | ||
|
|
||
| func (r *Rabbitmq) Start() error { | ||
| if r.Port == "" { | ||
| r.Port = "5672" | ||
| } | ||
|
|
||
| if r.Host == "" { | ||
| r.Host = "localhost" | ||
| } | ||
|
|
||
| conn, err := amqp.Dial(fmt.Sprintf("amqp://%s:%s@%s:%s/", r.Username.Expose(), r.Password.Expose(), r.Host, r.Port)) | ||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| ch, err := conn.Channel() | ||
|
|
||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| _, err = ch.QueueDeclare( | ||
| r.Queue, | ||
| false, | ||
| false, | ||
| false, | ||
| false, | ||
| nil, | ||
| ) | ||
|
|
||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| msgs, err := ch.Consume( | ||
| r.Queue, | ||
| "", | ||
| true, | ||
| false, | ||
| false, | ||
| false, | ||
| nil, | ||
| ) | ||
|
|
||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| for message := range msgs { | ||
| container, err := r.Handler.H.Parse(message.Body) | ||
|
|
||
| if err != nil { | ||
| return err | ||
| } | ||
|
|
||
| err = r.Handler.H.TransformAndSend(container) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
|
||
| return nil | ||
| } | ||
|
|
||
| func (r *Rabbitmq) Verify() error { | ||
| if r.Handler.Name == "" { | ||
| return skogul.MissingArgument("Handler") | ||
| } | ||
|
|
||
| if r.Username.Expose() == "" { | ||
| return skogul.MissingArgument("Username") | ||
| } | ||
|
|
||
| if r.Password.Expose() == "" { | ||
| return skogul.MissingArgument("Password") | ||
| } | ||
|
|
||
| if r.Queue == "" { | ||
| return skogul.MissingArgument("Queue") | ||
| } | ||
|
|
||
| return nil | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,80 @@ | ||
| /* | ||
| * skogul, rabbitmq-receiver test | ||
| * | ||
| * Copyright (c) 2023 Telenor Norge AS | ||
| * Author(s): | ||
| * - Kamil Oracz <kamil.oracz@telenor.no> | ||
| * | ||
| * This library is free software; you can redistribute it and/or | ||
| * modify it under the terms of the GNU Lesser General Public | ||
| * License as published by the Free Software Foundation; either | ||
| * version 2.1 of the License, or (at your option) any later version. | ||
| * | ||
| * This library is distributed in the hope that it will be useful, | ||
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | ||
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | ||
| * Lesser General Public License for more details. | ||
| * | ||
| * You should have received a copy of the GNU Lesser General Public | ||
| * License along with this library; if not, write to the Free Software | ||
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA | ||
| * 02110-1301 USA | ||
| */ | ||
|
|
||
| package receiver_test | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "testing" | ||
|
|
||
| "github.com/telenornms/skogul/config" | ||
| "github.com/telenornms/skogul/receiver" | ||
| ) | ||
|
|
||
| func TestRabbitmq(t *testing.T) { | ||
| if testing.Short() { | ||
| t.Skip("Short test: Not connecting to a Rabbitmq instance") | ||
| } | ||
|
|
||
| sconf := fmt.Sprintf(` | ||
| { | ||
| "receivers": { | ||
| "x": { | ||
| "type": "rabbitmq", | ||
| "handler": "kek", | ||
| "username":"guest", | ||
| "password":"guest", | ||
| "queue":"test-queue" | ||
| } | ||
| }, | ||
| "handlers": { | ||
| "kek": { | ||
| "parser": "skogulmetric", | ||
| "transformers": [ | ||
| "now" | ||
| ], | ||
| "sender": "test" | ||
| } | ||
| }, | ||
| "senders": { | ||
| "test": { | ||
| "type": "test" | ||
| } | ||
| } | ||
| }`) | ||
|
|
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| conf, err := config.Bytes([]byte(sconf)) | ||
|
|
||
| if err != nil { | ||
| t.Errorf("Failed to load config: %v", err) | ||
| return | ||
| } | ||
|
|
||
| rcv := conf.Receivers["x"].Receiver.(*receiver.Rabbitmq) | ||
|
|
||
| err = rcv.Start() | ||
|
|
||
| if err != nil { | ||
| t.Error(err) | ||
| } | ||
| } |
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