mirror of
https://github.com/TECHNOFAB11/zfs-localpv.git
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82 lines
2 KiB
Go
82 lines
2 KiB
Go
/*
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Copyright 2019 The OpenEBS Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package pod
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import (
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corev1 "k8s.io/api/core/v1"
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)
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// ListBuilder enables building an instance of
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// List
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type ListBuilder struct {
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list *List
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filters predicateList
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}
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// NewListBuilder returns a instance of ListBuilder
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func NewListBuilder() *ListBuilder {
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return &ListBuilder{list: &List{items: []*Pod{}}}
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}
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// ListBuilderForAPIList returns a instance of ListBuilder from API List
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func ListBuilderForAPIList(pods *corev1.PodList) *ListBuilder {
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b := &ListBuilder{list: &List{}}
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if pods == nil {
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return b
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}
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for _, p := range pods.Items {
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p := p
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b.list.items = append(b.list.items, &Pod{object: &p})
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}
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return b
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}
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// ListBuilderForObjectList returns a instance of ListBuilder from API Pods
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func ListBuilderForObjectList(pods ...*Pod) *ListBuilder {
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b := &ListBuilder{list: &List{}}
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if pods == nil {
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return b
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}
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for _, p := range pods {
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p := p
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b.list.items = append(b.list.items, p)
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}
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return b
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}
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// List returns the list of pod
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// instances that was built by this
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// builder
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func (b *ListBuilder) List() *List {
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if b.filters == nil || len(b.filters) == 0 {
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return b.list
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}
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filtered := &List{}
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for _, pod := range b.list.items {
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if b.filters.all(pod) {
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filtered.items = append(filtered.items, pod)
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}
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}
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return filtered
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}
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// WithFilter add filters on which the pod
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// has to be filtered
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func (b *ListBuilder) WithFilter(pred ...Predicate) *ListBuilder {
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b.filters = append(b.filters, pred...)
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return b
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}
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