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Refactor Builder.visitorResult by extra methonds.

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This commit is contained in:
Klaus Ma 2016-09-17 17:17:11 +08:00
parent 173fd499cf
commit d55006d38f
1 changed files with 167 additions and 151 deletions
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46
pkg/kubectl/resource/builder.go
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@ -533,6 +533,31 @@ func (b *Builder) visitorResult() *Result {
// visit selectors // visit selectors
if b.selector != nil { if b.selector != nil {
return b.visitBySelector()
}
// visit items specified by resource and name
if len(b.resourceTuples) != 0 {
return b.visitByResource()
}
// visit items specified by name
if len(b.names) != 0 {
return b.visitByName()
}
// visit items specified by paths
if len(b.paths) != 0 {
return b.visitByPaths()
}
if len(b.resources) != 0 {
return &Result{err: fmt.Errorf("resource(s) were provided, but no name, label selector, or --all flag specified")}
}
return &Result{err: missingResourceError}
}
func (b *Builder) visitBySelector() *Result {
if len(b.names) != 0 { if len(b.names) != 0 {
return &Result{err: fmt.Errorf("name cannot be provided when a selector is specified")} return &Result{err: fmt.Errorf("name cannot be provided when a selector is specified")}
} }
@ -571,10 +596,9 @@ func (b *Builder) visitorResult() *Result {
return &Result{visitor: EagerVisitorList(visitors), sources: visitors} return &Result{visitor: EagerVisitorList(visitors), sources: visitors}
} }
return &Result{visitor: VisitorList(visitors), sources: visitors} return &Result{visitor: VisitorList(visitors), sources: visitors}
} }
// visit items specified by resource and name func (b *Builder) visitByResource() *Result {
if len(b.resourceTuples) != 0 {
// if b.singular is false, this could be by default, so double-check length // if b.singular is false, this could be by default, so double-check length
// of resourceTuples to determine if in fact it is singular or not // of resourceTuples to determine if in fact it is singular or not
isSingular := b.singular isSingular := b.singular
@ -639,10 +663,9 @@ func (b *Builder) visitorResult() *Result {
visitors = VisitorList(items) visitors = VisitorList(items)
} }
return &Result{singular: isSingular, visitor: visitors, sources: items} return &Result{singular: isSingular, visitor: visitors, sources: items}
} }
// visit items specified by name func (b *Builder) visitByName() *Result {
if len(b.names) != 0 {
isSingular := len(b.names) == 1 isSingular := len(b.names) == 1
if len(b.paths) != 0 { if len(b.paths) != 0 {
@ -681,10 +704,9 @@ func (b *Builder) visitorResult() *Result {
visitors = append(visitors, info) visitors = append(visitors, info)
} }
return &Result{singular: isSingular, visitor: VisitorList(visitors), sources: visitors} return &Result{singular: isSingular, visitor: VisitorList(visitors), sources: visitors}
} }
// visit items specified by paths func (b *Builder) visitByPaths() *Result {
if len(b.paths) != 0 {
singular := !b.dir && !b.stream && len(b.paths) == 1 singular := !b.dir && !b.stream && len(b.paths) == 1
if len(b.resources) != 0 { if len(b.resources) != 0 {
return &Result{singular: singular, err: fmt.Errorf("when paths, URLs, or stdin is provided as input, you may not specify resource arguments as well")} return &Result{singular: singular, err: fmt.Errorf("when paths, URLs, or stdin is provided as input, you may not specify resource arguments as well")}
@ -710,12 +732,6 @@ func (b *Builder) visitorResult() *Result {
visitors = NewDecoratedVisitor(visitors, RetrieveLatest) visitors = NewDecoratedVisitor(visitors, RetrieveLatest)
} }
return &Result{singular: singular, visitor: visitors, sources: b.paths} return &Result{singular: singular, visitor: visitors, sources: b.paths}
}
if len(b.resources) != 0 {
return &Result{err: fmt.Errorf("resource(s) were provided, but no name, label selector, or --all flag specified")}
}
return &Result{err: missingResourceError}
} }
// Do returns a Result object with a Visitor for the resources identified by the Builder. // Do returns a Result object with a Visitor for the resources identified by the Builder.