Implements ShowAction, Library

config/config.json

@@ -3,5 +3,6 @@
 	"debugLevel":"debug",
 	"endpoints": {
 		"library":"endpoint/library.js"
-	}
+	},
+	"urlPrefix": "http://127.0.0.1:8080/bouquins"
 }

lib/action/action.js

@@ -59,8 +59,7 @@ Action.prototype =  Object.create(EventEmitter.prototype, {
 		value: function(callback) {
 			logger.debug('prepare Action');
 			// TODO impl per action type
-
-		// default: OK, no headers
+			// default: OK, no headers
 			callback(null, 200, {});
 		}, 
 		enumerable: true, 
@@ -89,7 +88,90 @@ function ShowAction() {
 	Action.call(this, 'show');
 };
 // inherits Action
-ShowAction.prototype = Object.create(Action.prototype);
+ShowAction.prototype = Object.create(Action.prototype, {
+	/**
+	 * Resource id.
+	 */
+	resId: { value: null, enumerable: true, configurable: true, writable: true },
+	/**
+	 * Resource.
+	 */
+	res: { value: null, enumerable: true, configurable: true, writable: true },
+	/**
+	 * Prepare show action.
+	 * Headers:
+	 *	- Link: related resource.
+	 */
+	prepare: {
+		value: function(callback) {
+			var self = this;
+			if (this.resId) {
+				this.loadResource(this.resId, function(err, res) {
+					self.res = res;
+					//TODO err
+					var link = '';
+					var rels = self.getRelated(res); // { type: 'author', path: '/author/id'}
+					logger.debug(rels);
+					rels.forEach(function (e) {
+						if (link.length > 0) link+=', ';
+						link += '<' + config.urlPrefix + e.path + '>; rel=' + e.type;
+					});
+					var headers = {};
+					if (link.length > 0) {
+						headers.Link = link;
+					}
+					callback(null, 200, headers);
+				});
+			} else {
+				//TODO error?
+				callback(null, '5OO', {});
+			}
+		}, 
+		enumerable: true, 
+		configurable: true, 
+		writable: true 
+	},
+	/**
+	 * Load resource.
+	 * @param resource id
+	 * @param callback <function(err, resource)>
+	 */
+	loadResource: {
+		value: function(resId, callback){
+			//implement
+			callback(new Error('Cannot load resource ' + resId));
+		}, 
+		enumerable: true, 
+		configurable: true, 
+		writable: true 
+	},
+	/**
+	 * Get related resources.
+	 * @param res resource 
+	 * @return related resources { type: 'author', path: '/author/id'}
+	 */
+	getRelated: {
+		value: function(res){
+			return [];
+		}, 
+		enumerable: true, 
+		configurable: true, 
+		writable: true 
+	},
+
+	doAction: {
+		value: function(){
+			logger.debug('doAction');
+			this.emit('data', this.res);
+			this.emit('end');
+		}, 
+		enumerable: true, 
+		configurable: true, 
+		writable: true 
+	}
+
+
+});
 
 module.exports = {
 	ShowAction: ShowAction

lib/endpoint/endpoint.js

@@ -34,6 +34,9 @@ Endpoint.prototype = {
 		}
 	},
 
+	/**
+	 * @return target is a collection of resources.
+	 */
 	targetCollection : function(pathname) {
 		// TODO
 		return false;
@@ -43,7 +46,7 @@ Endpoint.prototype = {
 	 * Bind action to endpoint resource.
 	 */
 	bind : function(action, callback) {
-		//TODO
+		// implemented
 		callback(null, action);
 	}
 };

lib/endpoint/library.js

@@ -6,5 +6,39 @@ function Library() {
 	Endpoint.call(this);
 }
 Library.prototype =  Object.create(Endpoint.prototype, {
+
+	bind: {
+		value: function(action, callback) {
+			if (action.name == 'show') {
+				action.resId = 'library';
+				action.loadResource = function(resId, callback) {
+					//TODO load from db
+					callback(null, {
+						name: 'Bibliothèque Meutel'
+					});
+				};
+				action.getRelated = function(res){
+					return new Array(
+						// authors list
+						{ type: 'authors', path: '/author/' },
+						// books list
+						{ type: 'books', path: '/books/' },
+						// tags list
+						{ type: 'tags', path: '/tags/' },
+						// series list
+						{ type: 'series', path: '/series/' },
+						// user favorites
+						{ type: 'favorites', path:'/favorites/'}
+					);
+				};
+			}
+			callback(null, action);
+		}, 
+		enumerable: true, 
+		configurable: true, 
+		writable: true 
+	},
+
+
 });
 exports = module.exports = new Library();

lib/outputter/outputter.js

@@ -26,14 +26,15 @@ Outputter.prototype = {
 	 * Available before calling outputTo().
 	 */
 	addHeader: function (name, value) {},
-
+	/**
+	 * Init before outputing.
+	 */
+	init: function () {},
 	/**
 	 * Listen action 'data' event.
 	 * Receive resource instance to output.
 	 */
-	output: function (resource) {
-		//TODO
-	},
+	output: function (resource) { },
 
 	/**
 	 * Listen action 'end' event.
@@ -41,7 +42,6 @@ Outputter.prototype = {
 	 */
 	end: function() {
 		logger.debug('Action ended');
-		//TODO
 		this.out.end();
 	},
 
@@ -63,6 +63,16 @@ var JSONOutputter = function() {
 };
 // inherits Outputter
 JSONOutputter.prototype = Object.create(Outputter.prototype, {
+	output: {
+		value: function(resource) {
+			this.out.write(JSON.stringify(resource));
+		}, enumerable: true, configurable: true, writable: true 
+	},
+	init: {
+		value: function() {
+			this.addHeader('Content-Type', 'application/json');
+		}, enumerable: true, configurable: true, writable: true 
+	}
 });
 
 /**

lib/router/router.js

@@ -104,7 +104,7 @@ Router.prototype = {
 				// allow outputter to set headers
 				outputter.addHeader = function(name, value) {
 					if (resp.headersSent) {
-						logger.warn('Header already sent, ignoring: ' + name);
+						logger.error('Header already sent, ignoring: ' + name);
 					} else {
 						resp.setHeader(name, value);
 					}
@@ -117,6 +117,7 @@ Router.prototype = {
 				}
 				// when request data received, prepare action, send headers, exec action
 				req.on('end', function() {
+					outputter.init();
 					action.prepare(function(err, statusCode, headers){
 						//TODO err