mirror of https://github.com/hashicorp/consul
60 lines
1.2 KiB
Go
60 lines
1.2 KiB
Go
package bexpr
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import (
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"reflect"
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"sync"
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)
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var DefaultRegistry Registry = NewSyncRegistry()
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type Registry interface {
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GetFieldConfigurations(reflect.Type) (FieldConfigurations, error)
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}
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type SyncRegistry struct {
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configurations map[reflect.Type]FieldConfigurations
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lock sync.RWMutex
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}
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func NewSyncRegistry() *SyncRegistry {
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return &SyncRegistry{
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configurations: make(map[reflect.Type]FieldConfigurations),
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}
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}
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func (r *SyncRegistry) GetFieldConfigurations(rtype reflect.Type) (FieldConfigurations, error) {
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if r != nil {
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r.lock.RLock()
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configurations, ok := r.configurations[rtype]
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r.lock.RUnlock()
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if ok {
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return configurations, nil
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}
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}
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fields, err := generateFieldConfigurations(rtype)
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if err != nil {
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return nil, err
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}
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if r != nil {
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r.lock.Lock()
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r.configurations[rtype] = fields
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r.lock.Unlock()
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}
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return fields, nil
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}
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type nilRegistry struct{}
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// The pass through registry can be used to prevent using the default registry and thus storing
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// any field configurations
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var NilRegistry = (*nilRegistry)(nil)
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func (r *nilRegistry) GetFieldConfigurations(rtype reflect.Type) (FieldConfigurations, error) {
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fields, err := generateFieldConfigurations(rtype)
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return fields, err
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}
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