jx/internal/resource/types.go

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// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.
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package resource
import (
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"errors"
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"fmt"
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"net/url"
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)
var (
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ErrUnknownResourceType = errors.New("Unknown resource type")
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ResourceTypes *Types = NewTypes()
)
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type TypeFactory func(*url.URL) Resource
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type Types struct {
registry map[string]TypeFactory
}
func NewTypes() *Types {
return &Types{ registry: make(map[string]TypeFactory) }
}
func (t *Types) Register(name string, factory TypeFactory) {
t.registry[name] = factory
}
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func (t *Types) New(uri string) (Resource, error) {
u,e := url.Parse(uri)
if u == nil || e != nil {
return nil, fmt.Errorf("%w: %s", ErrUnknownResourceType, e)
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}
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if r,ok := t.registry[u.Scheme]; ok {
return r(u), nil
}
return nil, fmt.Errorf("%w: %s", ErrUnknownResourceType, u.Scheme)
}
func (t *Types) Has(typename string) bool {
if _,ok := t.registry[typename]; ok {
return true
}
return false
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}