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cache.go
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cache.go
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// Copyright (c) 2019 Uber Technologies, Inc.
//
// 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 handler
import (
"context"
"github.com/uber/peloton/.gen/peloton/api/v0/job"
"github.com/uber/peloton/.gen/peloton/api/v0/peloton"
"github.com/uber/peloton/pkg/jobmgr/cached"
jobmgrcommon "github.com/uber/peloton/pkg/jobmgr/common"
ormobjects "github.com/uber/peloton/pkg/storage/objects"
)
// GetJobConfigWithoutFillingCache returns models.JobConfig without filling in
// cache. It would first try to find the object from cache. If cache misses,
// it will load from DB.
// The function is intended to be used for API that reads jobs without
// sending the jobs to goal states.
func GetJobConfigWithoutFillingCache(
ctx context.Context,
id *peloton.JobID,
factory cached.JobFactory,
jobConfigOps ormobjects.JobConfigOps) (jobmgrcommon.JobConfig, error) {
cachedJob := factory.GetJob(id)
if cachedJob != nil {
return cachedJob.GetConfig(ctx)
}
jobConfig, _, err := jobConfigOps.GetCurrentVersion(ctx, id)
return jobConfig, err
}
// GetJobRuntimeWithoutFillingCache returns job.RuntimeInfo without filling in
// cache. It would first try to find the object from cache. If cache misses,
// it will load from DB.
// The function is intended to be used for API that reads jobs without
// sending the jobs to goal states.
func GetJobRuntimeWithoutFillingCache(
ctx context.Context,
id *peloton.JobID,
factory cached.JobFactory,
jobRuntimeOps ormobjects.JobRuntimeOps) (*job.RuntimeInfo, error) {
cachedJob := factory.GetJob(id)
if cachedJob != nil {
return cachedJob.GetRuntime(ctx)
}
return jobRuntimeOps.Get(ctx, id)
}