Add node model and route

config.js

@@ -26,7 +26,7 @@ module.exports = {
     databaseURL: 'mongodb://localhost:27017/',
     port: 4000,
     secret: 'longsecretislong',
-    logLevel: 'verbose',        // possible values: error, warn, info, verbose or debug
+    logLevel: 'debug',        // possible values: error, warn, info, verbose or debug
     logFile: 'log.txt',
     admin: {
       username: 'admin',

models/node.js

+/**
+ * File: node.js
+ * Author: Markus Grigull <mgrigull@eonerc.rwth-aachen.de>
+ * Date: 21.06.2017
+ *
+ * This file is part of VILLASweb-backend.
+ *
+ * VILLASweb-backend is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * VILLASweb-backend is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with VILLASweb-backend. If not, see <http://www.gnu.org/licenses/>.
+ ******************************************************************************/
+
+// include
+var mongoose = require('mongoose');
+
+var Simulator = require('./simulator');
+var logger = require('../utils/logger');
+
+var Schema = mongoose.Schema;
+
+// node model
+var nodeSchema = new Schema({
+  name: { type: String, required: true, unique: true },
+  endpoint: { type: String, required: true, unique: true },
+  config: { type: Schema.Types.Mixed, default: {} },
+  simulators: [{ type: Schema.Types.ObjectId, ref: 'Simulator', default: [] }]
+});
+
+nodeSchema.pre('remove', function(callback) {
+  // delete all simulators belonging to this node
+  this.simulators.forEach(function(id) {
+    Simulator.findOne({ _id: id }, function(err, simulator) {
+      if (err) {
+        logger.error('Unable to find simulator for id: ' + id, err);
+        return;
+      }
+
+      simulator.remove(function(err) {
+        if (err) {
+          logger.error('Unable to remove simulator', { err, simulator });
+          return;
+        }
+      });
+    });
+  });
+
+  callback();
+});
+
+module.exports = mongoose.model('Node', nodeSchema);

routes/nodes.js

+/**
+ * File: nodes.js
+ * Author: Markus Grigull <mgrigull@eonerc.rwth-aachen.de>
+ * Date: 21.06.2017
+ *
+ * This file is part of VILLASweb-backend.
+ *
+ * VILLASweb-backend is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * VILLASweb-backend is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with VILLASweb-backend. If not, see <http://www.gnu.org/licenses/>.
+ ******************************************************************************/
+
+// include
+var express = require('express');
+
+var logger = require('../utils/logger');
+
+// models
+var Node = require('../models/node');
+
+// create router
+var router = express.Router();
+
+// routes
+router.get('/nodes', function(req, res) {
+  // get all nodes
+  Node.find(function(err, nodes) {
+    if (err) {
+      logger.error('Unable to receive nodes', err);
+      return res.status(400).send(err);
+    }
+
+    res.send({ nodes: nodes });
+  });
+});
+
+router.post('/nodes', function(req, res) {
+  // create new node
+  var node = new Simulator(req.body.node);
+
+  node.save(function(err) {
+    if (err) {
+      logger.error('Unable to create node', err);
+      return res.status(400).send(err);
+    }
+
+    res.send({ node: node });
+  });
+});
+
+router.put('/nodes/:id', function(req, res) {
+  // get node
+  Node.findOne({ _id: req.params.id }, function(err, node) {
+    if (err) {
+      logger.log('verbose', 'PUT Unknown node for id: ' + req.params.id);
+      return res.status(400).send(err);
+    }
+
+    // update all properties
+    for (property in req.body.node) {
+      node[property] = req.body.node[property];
+    }
+
+    // save the changes
+    node.save(function(err) {
+      if (err) {
+        logger.error('Unable to save node', node);
+        return res.status(500).send(err);
+      }
+
+      res.send({ node: node });
+    });
+  });
+});
+
+router.get('/nodes/:id', function(req, res) {
+  Node.findOne({ _id: req.params.id }, function(err, node) {
+    if (err) {
+      logger.log('verbose', 'GET Unknown node for id: ' + req.params.id);
+      return res.status(400).send(err);
+    }
+
+    res.send({ node: node });
+  });
+});
+
+router.delete('/nodes/:id', function(req, res) {
+  Node.findOne({ _id: req.params.id }, function(err, node) {
+    if (err) {
+      logger.log('verbose', 'DELETE Unknown node for id: ' + req.params.id);
+      return res.status(400).send(err);
+    }
+
+    node.remove(function(err) {
+      if (err) {
+        logger.error('Unable to remove node', node);
+        return res.status(500).send(err);
+      }
+
+      res.send({});
+    });
+  });
+});
+
+module.exports = router;

server.js

@@ -38,6 +38,7 @@ var simulationModels = require('./routes/simulationModels');
 var simulators = require('./routes/simulators');
 var upload = require('./routes/upload');
 var files = require('./routes/files');
+var nodes = require('./routes/nodes');
 
 var User = require('./models/user');
 
@@ -93,6 +94,7 @@ app.use('/api/v1', simulationModels);
 app.use('/api/v1', simulators);
 app.use('/api/v1', upload);
 app.use('/api/v1', files);
+app.use('/api/v1', nodes);
 
 app.use('/public', express.static(__dirname + '/public'));