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68 lines
1.5 KiB
68 lines
1.5 KiB
package port
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import (
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"fmt"
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"strconv"
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"strings"
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)
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const (
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NameDelimiter = "_"
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)
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type NameOption func(*nameBuilder) *nameBuilder
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type nameBuilder struct {
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name string
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rangePortFrom int
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rangePortTo int
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}
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func unmarshalFromName(name string) (*nameBuilder, error) {
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var builder nameBuilder
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arrs := strings.Split(name, NameDelimiter)
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switch len(arrs) {
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case 2:
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builder.name = arrs[1]
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case 4:
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builder.name = arrs[1]
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if fromPort, err := strconv.Atoi(arrs[2]); err != nil {
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return nil, fmt.Errorf("error range port from")
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} else {
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builder.rangePortFrom = fromPort
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}
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if toPort, err := strconv.Atoi(arrs[3]); err != nil {
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return nil, fmt.Errorf("error range port to")
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} else {
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builder.rangePortTo = toPort
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}
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default:
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return nil, fmt.Errorf("error port name format")
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}
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return &builder, nil
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}
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func (builder *nameBuilder) String() string {
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name := fmt.Sprintf("Port%s%s", NameDelimiter, builder.name)
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if builder.rangePortFrom > 0 && builder.rangePortTo > 0 && builder.rangePortTo > builder.rangePortFrom {
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name += fmt.Sprintf("%s%d%s%d", NameDelimiter, builder.rangePortFrom, NameDelimiter, builder.rangePortTo)
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}
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return name
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}
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func WithRangePorts(from, to int) NameOption {
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return func(builder *nameBuilder) *nameBuilder {
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builder.rangePortFrom = from
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builder.rangePortTo = to
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return builder
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}
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}
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func GenName(name string, options ...NameOption) string {
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builder := &nameBuilder{name: name}
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for _, option := range options {
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option(builder)
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}
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return builder.String()
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}
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