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operations.go
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operations.go
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/*
* Copyright 2020 The Knative 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 sender
import (
"math/rand"
"time"
"knative.dev/eventing/test/upgrade/prober/wathola/config"
)
// New creates new Sender
func New() Sender {
config.ReadIfPresent()
config.SetupTracing()
return &sender{
eventsSent: 0,
}
}
func Shutdown() {
config.ShutdownTracing()
}
// NewEventID creates new event ID
func NewEventID() string {
return randString(16)
}
const charset = "abcdefghijklmnopqrstuvwxyz" +
"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
var seededRand = rand.New(
rand.NewSource(time.Now().UnixNano()))
func randStringWithCharset(length int, charset string) string {
b := make([]byte, length)
for i := range b {
b[i] = charset[seededRand.Intn(len(charset))]
}
return string(b)
}
func randString(length int) string {
return randStringWithCharset(length, charset)
}