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util.go
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util.go
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// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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 schema
import (
"time"
"github.com/GoogleCloudPlatform/heapster/store"
)
// latestTimestamp returns its largest time.Time argument
func latestTimestamp(first time.Time, second time.Time) time.Time {
if first.After(second) {
return first
}
return second
}
// newInfoType is an InfoType Constructor, which returns a new InfoType.
// Initial fields for the new InfoType can be provided as arguments.
// A nil argument results in a newly-allocated map for that field.
func newInfoType(metrics map[string]*store.TimeStore, labels map[string]string) InfoType {
if metrics == nil {
metrics = make(map[string]*store.TimeStore)
}
if labels == nil {
labels = make(map[string]string)
}
return InfoType{
Metrics: metrics,
Labels: labels,
}
}
// addContainerToMap creates or finds a ContainerInfo element under a map[string]*ContainerInfo
func addContainerToMap(container_name string, dict map[string]*ContainerInfo) *ContainerInfo {
var container_ptr *ContainerInfo
if val, ok := dict[container_name]; ok {
// A container already exists under that name, return the address
container_ptr = val
} else {
container_ptr = &ContainerInfo{
InfoType: newInfoType(nil, nil),
}
dict[container_name] = container_ptr
}
return container_ptr
}