mirror of
https://github.com/TECHNOFAB11/zfs-localpv.git
synced 2025-12-12 06:20:11 +01:00
117 lines
2.8 KiB
Go
117 lines
2.8 KiB
Go
// Copyright © 2019 The OpenEBS Authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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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package volbuilder
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import (
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apis "github.com/openebs/zfs-localpv/pkg/apis/openebs.io/zfs/v1"
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)
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// ZFSVolume is a wrapper over
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// ZFSVolume API instance
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type ZFSVolume struct {
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// ZFSVolume object
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Object *apis.ZFSVolume
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}
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// From returns a new instance of
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// zfs volume
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func From(vol *apis.ZFSVolume) *ZFSVolume {
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return &ZFSVolume{
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Object: vol,
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}
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}
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// Predicate defines an abstraction
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// to determine conditional checks
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// against the provided pod instance
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type Predicate func(*ZFSVolume) bool
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// PredicateList holds a list of predicate
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type predicateList []Predicate
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// ZFSVolumeList holds the list
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// of zfs volume instances
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type ZFSVolumeList struct {
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// List conatils list of volumes
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List apis.ZFSVolumeList
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}
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// Len returns the number of items present
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// in the ZFSVolumeList
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func (volList *ZFSVolumeList) Len() int {
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return len(volList.List.Items)
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}
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// all returns true if all the predicates
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// succeed against the provided ZFSVolume
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// instance
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func (l predicateList) all(vol *ZFSVolume) bool {
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for _, pred := range l {
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if !pred(vol) {
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return false
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}
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}
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return true
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}
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// HasLabels returns true if provided labels
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// are present in the provided ZFSVolume instance
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func HasLabels(keyValuePair map[string]string) Predicate {
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return func(vol *ZFSVolume) bool {
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for key, value := range keyValuePair {
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if !vol.HasLabel(key, value) {
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return false
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}
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}
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return true
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}
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}
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// HasLabel returns true if provided label
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// is present in the provided ZFSVolume instance
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func (vol *ZFSVolume) HasLabel(key, value string) bool {
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val, ok := vol.Object.GetLabels()[key]
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if ok {
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return val == value
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}
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return false
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}
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// HasLabel returns true if provided label
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// is present in the provided ZFSVolume instance
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func HasLabel(key, value string) Predicate {
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return func(vol *ZFSVolume) bool {
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return vol.HasLabel(key, value)
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}
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}
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// IsNil returns true if the zfs volume instance
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// is nil
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func (vol *ZFSVolume) IsNil() bool {
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return vol.Object == nil
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}
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// IsNil is predicate to filter out nil zfs volume
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// instances
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func IsNil() Predicate {
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return func(vol *ZFSVolume) bool {
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return vol.IsNil()
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}
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}
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// GetAPIObject returns zfs volume's API instance
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func (vol *ZFSVolume) GetAPIObject() *apis.ZFSVolume {
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return vol.Object
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}
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