entity: update to use Map

src/xmpp/discover/entity.js

@@ -8,48 +8,34 @@
  * [XEP-0030](https://xmpp.org/extensions/xep-0030.html)
  */
 class Entity {
-    constructor() {
-        this.identities = [];
+    constructor(_jid) {
+        this.jid = _id;
+        // Services supported by the Entity
+        // key: category and type of the identity
+        // value: identity name
+        this.identities = new Map();
         // Features and protocols supported by the entity
-        this.features = [];
-        this.protocols = {};
+        this.features = new Map();
+        this.protocols = new Map();
     }
 
     /*
      * _identity is a <identity> XML Node
+     * _xmllang is the client preerend language
      */
-    addIdentity(_identity, _xmllang) {
+    addIdentity(_identity) {
         let type = _identity.getAttribute('type');
         let category = _identity.getAttribute('category');
-        let xmllang = _identity.getAttribute('xml:lang');
         let name = _identity.getAttribute('name');
 
-        let identity;
-        let found = false;
-        for (let identity of this.identities){
-            if (identity.type === type
-                && identity.category === category)
-            {
-                found = true;
-                break;
-            }
-        }
+        let idKey = ['type': type, 'category': category];
+        let identity = this.identities.get(idKey)
 
-        if (found) {
-            if (xmllang === _xmllang
-                && xmllang !== identity.xmllang)
-            {
-                identity.name = name;
-                identity.xmllang = xmllang;
-            }
+        if (identity) {
+            identity = name;
         }
         else {
-            this.identities.add({
-                'type': type,
-                'category': category,
-                'xmllang': xmllang,
-                'name': name
-            });
+            this.identities.set(idKey, name);
         }
     }