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internal_pressure_points.go
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/
internal_pressure_points.go
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// Copyright (c) 2017 Uber Technologies, Inc.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
package cadence
import (
"errors"
"math/rand"
"strconv"
"time"
m "go.uber.org/cadence/.gen/go/cadence"
"go.uber.org/zap"
)
// ** This is for internal stress testing framework **
// PressurePoints
const (
pressurePointTypeDecisionTaskStartTimeout = "decision-task-start-timeout"
pressurePointTypeDecisionTaskCompleted = "decision-task-complete"
pressurePointTypeActivityTaskScheduleTimeout = "activity-task-schedule-timeout"
pressurePointTypeActivityTaskStartTimeout = "activity-task-start-timeout"
pressurePointConfigProbability = "probability"
pressurePointConfigSleep = "sleep"
workerOptionsConfig = "worker-options"
workerOptionsConfigConcurrentPollRoutineSize = "ConcurrentPollRoutineSize"
)
type (
pressurePointMgr interface {
Execute(pressurePointName string) error
}
pressurePointMgrImpl struct {
config map[string]map[string]string
logger *zap.Logger
}
)
// newWorkflowWorkerWithPressurePoints returns an instance of a workflow worker.
func newWorkflowWorkerWithPressurePoints(
service m.TChanWorkflowService,
domain string,
params workerExecutionParameters,
pressurePoints map[string]map[string]string,
hostEnv *hostEnvImpl,
) (worker Worker) {
return newWorkflowWorker(
service,
domain,
params,
&pressurePointMgrImpl{config: pressurePoints, logger: params.Logger},
hostEnv,
)
}
func (p *pressurePointMgrImpl) Execute(pressurePointName string) error {
if config, ok := p.config[pressurePointName]; ok {
// If probability is configured.
if value, ok2 := config[pressurePointConfigProbability]; ok2 {
if probability, err := strconv.Atoi(value); err == nil {
if rand.Int31n(100) < int32(probability) {
// Drop the task.
p.logger.Debug("pressurePointMgrImpl.Execute drop task.",
zap.String("PressurePointName", pressurePointName),
zap.Int("probability", probability))
return errors.New("pressurepoint configured")
}
}
} else if value, ok3 := config[pressurePointConfigSleep]; ok3 {
if timeout, err := strconv.Atoi(value); err == nil {
if timeout > 0 {
p.logger.Debug("pressurePointMgrImpl.Execute sleep.",
zap.String("PressurePointName", pressurePointName),
zap.Int("DurationSeconds", timeout))
d := time.Duration(timeout) * time.Second
time.Sleep(d)
return nil
}
}
}
}
return nil
}