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100 lines
1.9 KiB
Go
100 lines
1.9 KiB
Go
/*
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Copyright 2017 The KUAR Authors
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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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http://www.apache.org/licenses/LICENSE-2.0
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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 keygen
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import (
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"context"
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"fmt"
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"os"
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"time"
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"github.com/kubernetes-up-and-running/kuard/pkg/memq/client"
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)
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type memQWorker struct {
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c Config
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ctx context.Context
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out func(string)
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memq memqclient.Client
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}
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func newMemQWorker(ctx context.Context, c Config, out func(string)) *memQWorker {
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w := &memQWorker{
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c: c,
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ctx: ctx,
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out: out,
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memq: memqclient.Client{
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BaseServerURL: c.MemQServer,
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},
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}
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return w
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}
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func (w *memQWorker) startWork() {
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w.log("MemQ Worker starting")
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for !w.isDone() {
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m, err := w.memq.Dequeue(w.c.MemQQueue)
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if err != nil {
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w.logf("Error talking to server: %v. Retrying after 1s.", err)
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time.Sleep(time.Second)
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continue
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}
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if m == nil {
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// Queue is empty. Exit if necessary. Otherwise sleep.
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if w.c.ExitOnComplete {
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os.Exit(w.c.ExitCode)
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}
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w.logf("Queue is empty. Retrying after 1s.")
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time.Sleep(time.Second)
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continue
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}
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w.itemDone(generateKey())
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}
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}
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func (w *memQWorker) isDone() bool {
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select {
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case <-w.ctx.Done():
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w.log("MemQ Worker shutting down")
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return true
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default:
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}
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return false
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}
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func (w memQWorker) itemDone(desc string) {
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if len(desc) > 0 {
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desc = ": " + desc
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}
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w.logf("Item done%s", desc)
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}
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func (w *memQWorker) done() {
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}
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func (w *memQWorker) log(s string) {
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w.out(s)
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}
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func (w *memQWorker) logf(format string, v ...interface{}) {
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w.out(fmt.Sprintf(format, v...))
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}
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