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filter.go
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/
filter.go
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package process
import (
"regexp"
"github.com/mozillazg/kubectl-ingress-search/pkg/ingress"
)
type Filter interface {
Filter([]ingress.Rule) []ingress.Rule
}
type FieldValueFilter struct {
Name string
Exp *regexp.Regexp
NoColor bool
}
func (f FieldValueFilter) Filter(rules []ingress.Rule) []ingress.Rule {
var newRuels []ingress.Rule
for _, r := range rules {
var match bool
switch f.Name {
case "namespace":
if newV, ok := f.apply(r.Namespace.Render()); ok {
v := r.Namespace
v.Rendered = newV
r.Namespace = v
match = true
}
break
case "name":
if newV, ok := f.apply(r.Name.Render()); ok {
v := r.Name
v.Rendered = newV
r.Name = v
match = true
}
break
case "host":
if newV, ok := f.apply(r.Host.Render()); ok {
v := r.Host
v.Rendered = newV
r.Host = v
match = true
}
case "path":
if newV, ok := f.apply(r.Path.Render()); ok {
v := r.Path
v.Rendered = newV
r.Path = v
match = true
}
case "backend":
if newV, ok := f.apply(r.Backend.Render()); ok {
v := r.Backend
v.Rendered = newV
r.Backend = v
match = true
}
}
if match {
newRuels = append(newRuels, r)
}
}
return newRuels
}
func (f FieldValueFilter) apply(v string) (string, bool) {
match := len(f.Exp.FindStringIndex(v)) > 0
newStr := v
if match && !f.NoColor {
newStr = highlight(v, f.Exp)
}
return newStr, match
}
type HighlightDupServiceFilter struct {
}
func (f HighlightDupServiceFilter) Filter(rules []ingress.Rule) []ingress.Rule {
services := map[string]int{}
for _, r := range rules {
if b, ok := r.Backend.V.(ingress.Backend); ok && b.Service != nil {
services[b.Service.Name] += 1
}
}
var newRules []ingress.Rule
for _, r := range rules {
if b, ok := r.Backend.V.(ingress.Backend); ok && b.Service != nil {
num := services[b.Service.Name]
if num > 1 {
newV, _ := FieldValueFilter{
Name: "service",
Exp: regexp.MustCompile("Service/" + b.Service.Name),
NoColor: false,
}.apply(r.Backend.Render())
v := r.Backend
v.Rendered = newV
r.Backend = v
}
}
newRules = append(newRules, r)
}
return newRules
}