70 lines
1.3 KiB
Go
70 lines
1.3 KiB
Go
package context
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type AttributeManager interface {
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Init()
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SetAttribute(key string, value interface{})
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GetAttribute(key string) (value interface{})
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GetAttributeNames() []string
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RemoveAttribute(key string)
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Contains(key string) (exist bool)
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Destroy()
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}
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type AttributeManagers struct {
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attributes map[string]interface{}
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}
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func (am *AttributeManagers) Init() {
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if nil == am.attributes {
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am.Destroy()
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}
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am.attributes = make(map[string]interface{})
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}
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func (am *AttributeManagers) SetAttribute(key string, value interface{}) {
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if nil == am.attributes {
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am.attributes = make(map[string]interface{})
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}
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am.attributes[key] = value
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}
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func (am *AttributeManagers) GetAttribute(key string) (value interface{}) {
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if nil == am.attributes {
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return nil
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}
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return am.attributes[key]
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}
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func (am *AttributeManagers) GetAttributeNames() []string {
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if nil == am.attributes {
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return nil
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}
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keys := []string{}
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for k, _ := range am.attributes {
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keys = append(keys, k)
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}
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return keys
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}
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func (am *AttributeManagers) RemoveAttribute(key string) {
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if nil == am.attributes {
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return
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}
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delete(am.attributes, key)
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}
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func (am *AttributeManagers) Contains(key string) (exist bool) {
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if nil == am.attributes {
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return false
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}
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_, ok := am.attributes[key]
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return ok
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}
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func (am *AttributeManagers) Destroy() {
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if nil != am.attributes {
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am.attributes = nil
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}
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}
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