121 lines
3.5 KiB
Go
121 lines
3.5 KiB
Go
/*
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Copyright 2018 The Kubernetes 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 unstructpath
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import (
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p "k8s.io/kubectl/pkg/framework/predicates"
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)
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// InterfaceS is a "interface selector". It filters interfaces based on the
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// "filtered" predicates.
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type InterfaceS interface {
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// InterfaceS can be used as a Interface predicate. If the selector can't
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// select any interface from the interface, then the predicate is
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// false.
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p.Interface
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// SelectFrom finds interfaces from interfaces using this selector. The
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// list can be bigger or smaller than the initial lists,
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// depending on the select criterias.
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SelectFrom(...interface{}) []interface{}
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// Map returns a selector that selects Maps from the given
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// values.
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Map() MapS
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// Slice returns a selector that selects Slices from the given
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// values.
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Slice() SliceS
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// Number returns a selector taht selects Numbers from the given values.
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Number() NumberS
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// String returns a selector that selects strings from the given values.
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String() StringS
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// Children returns a selector that selects the direct children
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// of the given values.
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Children() InterfaceS
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// All returns a selector that selects all direct and indrect
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// children of the given values.
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All() InterfaceS
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// Filter will create a new StringS that filters only the values
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// who match the predicate.
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Filter(...p.Interface) InterfaceS
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}
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// Children selects all the children of the values.
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func Children() InterfaceS {
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return &interfaceS{vf: interfaceChildrenFilter{}}
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}
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// All selects all the direct and indirect childrens of the values.
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func All() InterfaceS {
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return &interfaceS{vf: interfaceAllFilter{}}
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}
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// Filter will only return the values that match the predicate.
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func Filter(predicates ...p.Interface) InterfaceS {
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return &interfaceS{vf: &interfaceFilterP{vp: p.InterfaceAnd(predicates...)}}
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}
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// InterfaceS is a "Interface SelectFromor". It selects a list of values, maps,
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// slices, strings, integer from a list of values.
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type interfaceS struct {
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vs InterfaceS
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vf interfaceFilter
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}
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// Match returns true if the selector can find items in the given
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// value. Otherwise, it returns false.
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func (s *interfaceS) Match(value interface{}) bool {
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return len(s.SelectFrom(value)) != 0
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}
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func (s *interfaceS) SelectFrom(interfaces ...interface{}) []interface{} {
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if s.vs != nil {
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interfaces = s.vs.SelectFrom(interfaces...)
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}
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return s.vf.SelectFrom(interfaces...)
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}
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func (s *interfaceS) Map() MapS {
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return &mapS{vs: s}
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}
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func (s *interfaceS) Slice() SliceS {
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return &sliceS{vs: s}
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}
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func (s *interfaceS) Number() NumberS {
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return &numberS{vs: s}
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}
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func (s *interfaceS) String() StringS {
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return &stringS{vs: s}
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}
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func (s *interfaceS) Children() InterfaceS {
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return &interfaceS{vs: s, vf: interfaceChildrenFilter{}}
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}
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func (s *interfaceS) All() InterfaceS {
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return &interfaceS{vs: s, vf: interfaceAllFilter{}}
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}
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func (s *interfaceS) Filter(predicates ...p.Interface) InterfaceS {
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return &interfaceS{vs: s, vf: &interfaceFilterP{vp: p.InterfaceAnd(predicates...)}}
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}
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