({
	updateView: function(component, event, helper) {
        var variant = component.get("v.variant"),
            hasVariant = variant == "warning" || variant == "expired",
            style = "slds-progress-ring",
            iconName,
            altText;
        if(hasVariant) {
            style = style + " " + style + "_" + variant;
            iconName = "utility:"+({ warning: "warning", expired: "error" }[variant]);
            altText = { warning: "Warning", expired: "Expired" }[variant];
        }
        component.set("v.ringClass", style);
        component.set("v.hasVariant", hasVariant);
        component.set("v.iconName", iconName);
        component.set("v.altText", altText)
    }
})