refactoring

upnp/statevariable/statevalueinstance.go

@@ -0,0 +1,75 @@
+package stateVariables
+
+import (
+	"sync"
+	"time"
+
+	"github.com/beevik/etree"
+)
+
+type StateVarInstance struct {
+	model         *StateVariable
+	value         interface{}
+	previousValue interface{}
+	lastChange    time.Time
+	lastEvent     time.Time
+	mu            sync.RWMutex
+}
+
+func (instance *StateVarInstance) Cast(val interface{}) (interface{}, error) {
+	return instance.model.Cast(val)
+}
+
+func (instance *StateVarInstance) Model() *StateVariable {
+	return instance.model
+}
+
+func (instance *StateVarInstance) Value() interface{} {
+	instance.mu.RLock()
+	defer instance.mu.RUnlock()
+	return instance.value
+}
+
+func (instance *StateVarInstance) SetValue(val interface{}) error {
+	cval, err := instance.Cast(val)
+
+	if err != nil {
+		return err
+	}
+
+	instance.mu.Lock()
+	defer instance.mu.Unlock()
+	instance.previousValue = instance.value
+	instance.value = cval
+	return nil
+}
+
+func (instance *StateVarInstance) Incr() {
+	instance.mu.Lock()
+	defer instance.mu.Unlock()
+
+}
+
+// ShouldTriggerEvent vérifie toutes les conditions
+func (instance *StateVarInstance) ShouldTriggerEvent() bool {
+	for _, condition := range instance.model.eventConditions {
+		if !condition(instance) {
+			return false
+		}
+	}
+	return true
+}
+
+func (sv *StateVarInstance) GenerateEvent() *etree.Element {
+
+	// Construire le XML d'événement
+	propSet := etree.NewElement("e:propertyset")
+	propSet.CreateAttr("xmlns:e", "urn:schemas-upnp-org:event-1-0")
+
+	prop := propSet.CreateElement("e:property")
+	elem := prop.CreateElement(sv.model.Name())
+	elem.SetText(sv.model.valueToString(sv.Value()))
+
+	return propSet
+
+}