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context.go
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context.go
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// Copyright (c) 2020 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 matching
import (
"context"
"sync"
"github.com/uber/cadence/common/log"
"github.com/uber/cadence/common/log/tag"
"github.com/uber/cadence/common/metrics"
"github.com/uber/cadence/common/types"
)
type handlerContext struct {
context.Context
scope metrics.Scope
logger log.Logger
}
var stickyTaskListMetricTag = metrics.TaskListTag("__sticky__")
func newHandlerContext(
ctx context.Context,
domainName string,
taskList *types.TaskList,
metricsClient metrics.Client,
metricsScope int,
logger log.Logger,
) *handlerContext {
return &handlerContext{
Context: ctx,
scope: newPerTaskListScope(domainName, taskList.GetName(), taskList.GetKind(), metricsClient, metricsScope).Tagged(metrics.GetContextTags(ctx)...),
logger: logger.WithTags(tag.WorkflowDomainName(domainName), tag.WorkflowTaskListName(taskList.GetName())),
}
}
func newPerTaskListScope(
domainName string,
taskListName string,
taskListKind types.TaskListKind,
client metrics.Client,
scopeIdx int,
) metrics.Scope {
domainTag := metrics.DomainUnknownTag()
taskListTag := metrics.TaskListUnknownTag()
if domainName != "" {
domainTag = metrics.DomainTag(domainName)
}
if taskListName != "" && taskListKind != types.TaskListKindSticky {
taskListTag = metrics.TaskListTag(taskListName)
}
if taskListKind == types.TaskListKindSticky {
taskListTag = stickyTaskListMetricTag
}
return client.Scope(scopeIdx, domainTag, taskListTag)
}
// startProfiling initiates recording of request metrics
func (reqCtx *handlerContext) startProfiling(wg *sync.WaitGroup) metrics.Stopwatch {
wg.Wait()
sw := reqCtx.scope.StartTimer(metrics.CadenceLatencyPerTaskList)
reqCtx.scope.IncCounter(metrics.CadenceRequestsPerTaskList)
return sw
}
func (reqCtx *handlerContext) handleErr(err error) error {
if err == nil {
return nil
}
scope := reqCtx.scope
switch err.(type) {
case *types.InternalServiceError:
scope.IncCounter(metrics.CadenceFailuresPerTaskList)
reqCtx.logger.Error("Internal service error", tag.Error(err))
return err
case *types.BadRequestError:
scope.IncCounter(metrics.CadenceErrBadRequestPerTaskListCounter)
return err
case *types.EntityNotExistsError:
scope.IncCounter(metrics.CadenceErrEntityNotExistsPerTaskListCounter)
return err
case *types.WorkflowExecutionAlreadyStartedError:
scope.IncCounter(metrics.CadenceErrExecutionAlreadyStartedPerTaskListCounter)
return err
case *types.DomainAlreadyExistsError:
scope.IncCounter(metrics.CadenceErrDomainAlreadyExistsPerTaskListCounter)
return err
case *types.QueryFailedError:
scope.IncCounter(metrics.CadenceErrQueryFailedPerTaskListCounter)
return err
case *types.LimitExceededError:
scope.IncCounter(metrics.CadenceErrLimitExceededPerTaskListCounter)
return err
case *types.ServiceBusyError:
scope.IncCounter(metrics.CadenceErrServiceBusyPerTaskListCounter)
return err
case *types.DomainNotActiveError:
scope.IncCounter(metrics.CadenceErrDomainNotActivePerTaskListCounter)
return err
case *types.RemoteSyncMatchedError:
scope.IncCounter(metrics.CadenceErrRemoteSyncMatchFailedPerTaskListCounter)
return err
case *types.StickyWorkerUnavailableError:
scope.IncCounter(metrics.CadenceErrStickyWorkerUnavailablePerTaskListCounter)
return err
default:
scope.IncCounter(metrics.CadenceFailuresPerTaskList)
reqCtx.logger.Error("Uncategorized error", tag.Error(err))
return &types.InternalServiceError{Message: err.Error()}
}
}