diff --git a/web/gui/src/main/webapp/app/view/topo2/topo2Collection.js b/web/gui/src/main/webapp/app/view/topo2/topo2Collection.js
new file mode 100644
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+++ b/web/gui/src/main/webapp/app/view/topo2/topo2Collection.js
@@ -0,0 +1,116 @@
+/*
+ * Copyright 2016-present Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/*
+ ONOS GUI -- Topology Collection Module.
+ A Data Store that contains model data from the server
+ */
+
+(function () {
+    'use strict';
+
+    var Model;
+
+    function Collection(models, options) {
+
+        options || (options = {});
+
+        this.models = [];
+        this._reset();
+
+        if (options.comparator !== void 0) this.comparator = options.comparator;
+
+        if (models) {
+            this.add(models);
+        }
+    }
+
+    Collection.prototype = {
+        model: Model,
+        add: function (data) {
+
+            var _this = this;
+
+            if (angular.isArray(data)) {
+
+                data.forEach(function (d) {
+
+                    var model = new _this.model(d);
+                    model.collection = _this;
+
+                    _this.models.push(model);
+                    _this._byId[d.id] = model;
+                });
+            }
+
+//            this.sort();
+        },
+        get: function (id) {
+            if (!id) {
+                return void 0;
+            }
+            return this._byId[id] || null;
+        },
+        sort: function () {
+
+            var comparator = this.comparator;
+
+            // Check if function
+            comparator = comparator.bind(this);
+            this.models.sort(comparator);
+
+            return this;
+        },
+        _reset: function () {
+            this._byId = [];
+            this.models = [];
+        }
+    };
+
+    Collection.extend = function (protoProps, staticProps) {
+
+        var parent = this;
+        var child;
+
+        child = function () {
+            return parent.apply(this, arguments);
+        };
+
+        angular.extend(child, parent, staticProps);
+
+        // Set the prototype chain to inherit from `parent`, without calling
+        // `parent`'s constructor function and add the prototype properties.
+        child.prototype = angular.extend({}, parent.prototype, protoProps);
+        child.prototype.constructor = child;
+
+        // Set a convenience property in case the parent's prototype is needed
+        // later.
+        child.__super__ = parent.prototype;
+
+        return child;
+    };
+
+    angular.module('ovTopo2')
+        .factory('Topo2Collection',
+        ['Topo2Model',
+            function (_Model_) {
+
+                Model = _Model_;
+                return Collection;
+            }
+        ]);
+
+})();