[Framework] Continue implementing fundamentals

Continue implementing classes which represent fundamental
concepts within the framework layer. WTD-518.

In particular, add methods which will be useful during the
extension resolution phase of framework start up.

platform/framework/src/Bundle.js

@@ -1,8 +1,8 @@
 /*global define*/
 
 define(
-    [],
+    ['./Constants', './Extension'],
-    function () {
+    function (Constants, Extension) {
         "use strict";
 
 
@@ -11,6 +11,10 @@ define(
          *
          * @name BundleDefinition
          * @property {string} name the human-readable name of this bundle
+         * @property {string} sources the name of the directory which
+         *           contains source code used by this bundle
+         * @property {string} resources the name of the directory which
+         *           contains resource files used by this bundle
          * @property {Object.<string,ExtensionDefinition[]>} [extensions={}]
          *           all extensions exposed by this bundle
          */
@@ -22,26 +26,86 @@ define(
          *
          * @param {string} path the path to the directory containing
          *        this bundle
-         * @param {BundleDefinition} definition
+         * @param {BundleDefinition} bundleDefinition
          * @returns {{getDefinition: Function}}
          * @constructor
          */
-        function Bundle(path, definition) {
+        function Bundle(path, bundleDefinition) {
+            // Start with defaults
+            var definition = Object.create(Constants.DEFAULT_BUNDLE),
+                self;
 
+            // Utility function for resolving paths in this bundle
+            function resolvePath(elements) {
+                return path.concat(elements || []).join(Constants.SEPARATOR);
+            }
 
-            return {
+            // Override defaults with specifics from bundle definition
+            Object.keys(bundleDefinition).forEach(function (k) {
+                definition[k] = bundleDefinition[k];
+            });
+
+            return (self = {
                 /**
                  *
+                 * @memberof Bundle#
+                 * @returns {string}
+                 */
+                getPath: function () {
+                    return path;
+                },
+                /**
+                 * Get the path to this bundle's source folder. If an
+                 * argument is provided, the path will be to the source
+                 * file within the bundle's source file.
+                 *
+                 * @memberof Bundle#
+                 * @param {string} [sourceFile] optionally, give a path to
+                 *        a specific source file in the bundle.
+                 * @returns {string}
+                 */
+                getSourcePath: function (sourceFile) {
+                    var subpath = sourceFile ?
+                            [ definition.sources, sourceFile ] :
+                            [ definition.sources ];
+
+                    return resolvePath(subpath);
+                },
+                /**
+                 * Get the path to this bundle's resource folder. If an
+                 * argument is provided, the path will be to the resource
+                 * file within the bundle's resource file.
+                 *
+                 * @memberof Bundle#
+                 * @param {string} [resourceFile] optionally, give a path to
+                 *        a specific resource file in the bundle.
+                 * @returns {string}
+                 */
+                getResourcePath: function (resourceFile) {
+                    var subpath = resourceFile ?
+                            [ definition.resources, resourceFile ] :
+                            [ definition.resources ];
+
+                    return resolvePath(subpath);
+                },
+                getExtensions: function (category) {
+                    var extensions = definition.extensions[category] || [];
+
+                    return extensions.map(function objectify(extDefinition) {
+                        return new Extension(self, category, extDefinition);
+                    });
+                },
+                /**
+                 *
+                 * @memberof Bundle#
                  * @returns {BundleDefinition} the raw definition of this bundle
                  */
                 getDefinition: function () {
                     return definition;
                 }
-            };
+            });
         }
 
-        new Bundle().getDefinition().extensions['k'][0].
-
         return Bundle;
     }
 );

platform/framework/src/Constants.js

@@ -6,5 +6,12 @@
 define({
     MODULE_NAME: "OpenMCTWeb",
     BUNDLE_LISTING_FILE: "bundles.json",
-    BUNDLE_FILE: "bundle.json"
+    BUNDLE_FILE: "bundle.json",
+    SEPARATOR: "/",
+    DEFAULT_BUNDLE: {
+        "sources": "src",
+        "resources": "res",
+        "test": "test",
+        "extensions": {}
+    }
 });

platform/framework/src/Extension.js

@@ -48,6 +48,19 @@ define(
                 getCategory: function () {
                     return category;
                 },
+                /**
+                 * Get the path to the AMD module which implements this
+                 * extension. Will return undefined if there is no
+                 * implementation associated with this extension.
+                 *
+                 * @memberof Extension#
+                 * @returns {string} path to implementation, or undefined
+                 */
+                getImplementationPath: function () {
+                    return definition.implementation ?
+                            bundle.getSourcePath(definition.implementation) :
+                            undefined;
+                },
                 /**
                  * @memberof Extension#
                  * @returns {ExtensionDefinition}

platform/framework/src/Main.js

@@ -12,7 +12,8 @@ define(
     [
         'require',
         '../lib/es6-promise-2.0.0.min',
-        '../lib/angular.min'
+        '../lib/angular.min',
+        './BundleLoader'
     ],
     function (require, es6promise, angular) {
         "use strict";