Files
fission-src/pkg/fission-cli/cmd/mqtrigger/update.go
T
Ta-Ching ChenandGitHub 93d4b88d84 Make CLI functions return error instead of fatal out (#1379)
Before this PR, CLI functions fatal out when encountering error
instead of returning it. Such behavior makes it hard to reuse 
the functions nor writing unit tests. This PR aims to make functions 
return errors instead of error out.
2019-11-05 16:50:13 +08:00

122 lines
2.9 KiB
Go

/*
Copyright 2019 The Fission Authors.
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 mqtrigger
import (
"fmt"
"github.com/pkg/errors"
fv1 "github.com/fission/fission/pkg/apis/fission.io/v1"
"github.com/fission/fission/pkg/controller/client"
"github.com/fission/fission/pkg/fission-cli/cliwrapper/cli"
"github.com/fission/fission/pkg/fission-cli/util"
)
type UpdateSubCommand struct {
client *client.Client
trigger *fv1.MessageQueueTrigger
}
func Update(flags cli.Input) error {
c, err := util.GetServer(flags)
if err != nil {
return err
}
opts := UpdateSubCommand{
client: c,
}
return opts.do(flags)
}
func (opts *UpdateSubCommand) do(flags cli.Input) error {
err := opts.complete(flags)
if err != nil {
return err
}
return opts.run(flags)
}
func (opts *UpdateSubCommand) complete(flags cli.Input) error {
m, err := util.GetMetadata("name", "triggerns", flags)
if err != nil {
return err
}
mqt, err := opts.client.MessageQueueTriggerGet(m)
if err != nil {
return errors.Wrap(err, "error getting message queue trigger")
}
topic := flags.String("topic")
respTopic := flags.String("resptopic")
errorTopic := flags.String("errortopic")
maxRetries := flags.Int("maxretries")
fnName := flags.String("function")
contentType := flags.String("contenttype")
// TODO : Find out if we can make a call to checkIfFunctionExists, in the same ns more importantly.
err = checkMQTopicAvailability(mqt.Spec.MessageQueueType, topic, respTopic)
if err != nil {
return err
}
updated := false
if len(topic) > 0 {
mqt.Spec.Topic = topic
updated = true
}
if len(respTopic) > 0 {
mqt.Spec.ResponseTopic = respTopic
updated = true
}
if len(errorTopic) > 0 {
mqt.Spec.ErrorTopic = errorTopic
updated = true
}
if maxRetries > -1 {
mqt.Spec.MaxRetries = maxRetries
updated = true
}
if len(fnName) > 0 {
mqt.Spec.FunctionReference.Name = fnName
updated = true
}
if len(contentType) > 0 {
mqt.Spec.ContentType = contentType
updated = true
}
if !updated {
return errors.New("Nothing to update. Use --topic, --resptopic, --errortopic, --maxretries or --function.")
}
opts.trigger = mqt
return nil
}
func (opts *UpdateSubCommand) run(flags cli.Input) error {
_, err := opts.client.MessageQueueTriggerUpdate(opts.trigger)
if err != nil {
return errors.Wrap(err, "error updating message queue trigger")
}
fmt.Printf("message queue trigger '%v' updated\n", opts.trigger.Metadata.Name)
return nil
}