check for duplicate events

lib/services/db.js

@@ -247,13 +247,13 @@ DB.prototype.estimateFee = function(blocks, callback) {
 DB.prototype.getPublishEvents = function() {
   return [
     {
-      name: 'transaction',
+      name: 'db/transaction',
       scope: this,
       subscribe: this.subscribe.bind(this, 'transaction'),
       unsubscribe: this.unsubscribe.bind(this, 'transaction')
     },
     {
-      name: 'block',
+      name: 'db/block',
       scope: this,
       subscribe: this.subscribe.bind(this, 'block'),
       unsubscribe: this.unsubscribe.bind(this, 'block')

lib/services/web.js

@@ -6,6 +6,8 @@ var bodyParser = require('body-parser');
 var socketio = require('socket.io');
 var BaseService = require('../service');
 var inherits = require('util').inherits;
+var index = require('../');
+var log = index.log;
 
 var WebService = function(options) {
   var self = this;
@@ -13,6 +15,7 @@ var WebService = function(options) {
   this.port = options.port || this.node.port || 3456;
 
   this.node.on('ready', function() {
+    self.eventNames = self.getEventNames();
     self.setupAllRoutes();
     self.server.listen(self.port);
     self.createMethodsMap();
@@ -51,8 +54,14 @@ WebService.prototype.stop = function(callback) {
 WebService.prototype.setupAllRoutes = function() {
   for(var key in this.node.services) {
     var subApp = new express.Router();
-    this.app.use('/' + this.node.services[key].getRoutePrefix(), subApp);
-    this.node.services[key].setupRoutes(subApp, express);
+    var service = this.node.services[key];
+
+    if(service.getRoutePrefix && service.setupRoutes) {
+      this.app.use('/' + this.node.services[key].getRoutePrefix(), subApp);
+      this.node.services[key].setupRoutes(subApp, express);      
+    } else {
+      log.info('Not setting up routes for ' + service.name);
+    }
   }
 };
 
@@ -73,7 +82,32 @@ WebService.prototype.createMethodsMap = function() {
       args: args
     };
   });
-}
+};
+
+WebService.prototype.getEventNames = function() {
+  var events = this.node.getAllPublishEvents();
+  var eventNames = [];
+
+  function addEventName(name) {
+    if(eventNames.indexOf(name) > -1) {
+      throw new Error('Duplicate event ' + name);
+    }
+
+    eventNames.push(name);
+  };
+
+  events.forEach(function(event) {
+    addEventName(event.name);
+
+    if(event.extraEvents) {
+      event.extraEvents.forEach(function(name) {
+        addEventName(name);
+      });
+    }
+  });
+
+  return eventNames;
+};
 
 WebService.prototype.socketHandler = function(socket) {
   var self = this;
@@ -90,23 +124,7 @@ WebService.prototype.socketHandler = function(socket) {
     bus.unsubscribe(name, params);
   });
 
-  var events = self.node.getAllPublishEvents();
-  var eventNames = [];
-
-  events.forEach(function(event) {
-    eventNames.push(event.name);
-
-    if(event.extraEvents) {
-      eventNames = eventNames.concat(event.extraEvents);
-    }
-  });
-
-  eventNames = eventNames.filter(function(value, index, self) {
-    // remove any duplicates
-    return self.indexOf(value) === index;
-  });
-
-  eventNames.forEach(function(eventName) {
+  this.eventNames.forEach(function(eventName) {
     bus.on(eventName, function() {
       if(socket.connected) {
         var results = [];

test/services/web.unit.js

@@ -102,6 +102,54 @@ describe('WebService', function() {
     });
   });
 
+  describe('#getEventNames', function() {
+    it('should get event names', function() {
+      var Module1 = function() {};
+      Module1.prototype.getPublishEvents = function() {
+        return [
+          {
+            name: 'event1',
+            extraEvents: ['event2']
+          }
+        ];
+      };
+
+      var module1 = new Module1();
+      var node = {
+        on: sinon.spy(),
+        getAllPublishEvents: sinon.stub().returns(module1.getPublishEvents())
+      };
+
+      var web = new WebService({node: node});
+      var events = web.getEventNames();
+
+      events.should.deep.equal(['event1', 'event2']);
+    });
+
+    it('should throw an error if there is a duplicate event', function() {
+      var Module1 = function() {};
+      Module1.prototype.getPublishEvents = function() {
+        return [
+          {
+            name: 'event1',
+            extraEvents: ['event1']
+          }
+        ];
+      };
+
+      var module1 = new Module1();
+      var node = {
+        on: sinon.spy(),
+        getAllPublishEvents: sinon.stub().returns(module1.getPublishEvents())
+      };
+
+      var web = new WebService({node: node});
+      (function() {
+        var events = web.getEventNames();
+      }).should.throw('Duplicate event event1');
+    });
+  });
+
   describe('#socketHandler', function() {
     var bus = new EventEmitter();
 
@@ -127,6 +175,7 @@ describe('WebService', function() {
 
     it('on message should call socketMessageHandler', function(done) {
       web = new WebService({node: node});
+      web.eventNames = web.getEventNames();
       web.socketMessageHandler = function(param1) {
         param1.should.equal('data');
         done();