ES6 modules

src/Net/IIP/DistributedResource.js

@@ -0,0 +1,208 @@
+/*
+* Copyright (c) 2017 Ahmed Kh. Zamil
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to deal
+* in the Software without restriction, including without limitation the rights
+* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+* copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in all
+* copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*/
+
+/**
+ * Created by Ahmed Zamil on 25/07/2017.
+ */
+
+"use strict";  
+
+import IResource from '../../Resource/IResource.js';
+import AsyncReply from '../../Engine/AsyncReply.js';
+import Codec from '../../Data/Codec.js';
+
+export default class DistributedResource extends IResource
+{
+    destroy()
+    {
+        this.destroyed = true;
+        this._emit("destroy", this);
+    }
+
+    constructor(connection, instanceId, age, link)
+    {
+        super();
+
+        this._p = {
+            isAttached: false,
+            connection: connection,
+            instanceId: instanceId,
+            age: age,
+            link: link,
+            properties: []
+        };
+    }
+
+    _serialize()
+    {
+        var props = [];
+
+        for (var i = 0; i < this._p.properties.length; i++)
+            props.push(new PropertyValue(this._p.properties[i], 
+                                         this.instance.getAge(i), 
+                                         this.instance.getModificationDate(i)));
+        
+        return props;
+    }
+
+    _attached(properties)
+    {
+
+        if (this._isAttached)
+            return false;
+        else
+        { 
+            for(var i = 0; i  < properties.length; i++)
+            {
+                this.instance.setAge(i, properties[i].age);
+                this.instance.setModificationDate(i, properties[i].date);
+                this._p.properties.push(properties[i].value);
+            }
+
+
+            this._p.isAttached = true;
+
+            var self = this;
+
+            var makeFunc = function(index)
+            {
+              var func = function () {
+
+                  if (   arguments.length = 1 
+                      && arguments[0] instanceof Object 
+                      && arguments[0].constructor.name == "Object")
+                  {
+                      var namedArgs = new Structure(arguments[0]);
+                      return self._invokeByNamedArguments(index, namedArgs);
+                  }
+                  else
+                  {
+                      return self._invokeByArrayArguments(index, arguments);
+                  }
+              };
+
+              // get expansion
+              func.help = self.instance.template.functions[index].expansion;
+              return func;
+            };
+
+            var makeGetter = function(index)
+            {
+                return function () {
+                    return self._get(index);
+                };
+            };
+
+            var makeSetter = function(index)
+            {
+                return function (value) {
+                    self._set(index, value);
+                };
+            };
+
+            for(var i = 0; i < this.instance.template.functions.length; i++)
+            {
+                var ft = this.instance.template.functions[i];
+                this[ft.name] = makeFunc(ft.index);
+            }
+
+            for(var i = 0; i < this.instance.template.properties.length; i++)
+            {
+                var pt = this.instance.template.properties[i];
+
+                Object.defineProperty(this, pt.name, {
+                    get: makeGetter(pt.index),
+                    set: makeSetter(pt.index),
+                    enumerable: true,
+                    configurable: true
+                });
+
+            }
+        }
+        return true;
+    }
+
+    _emitEventByIndex(index, args)
+    {
+        var et = this.instance.template.getEventTemplateByIndex(index);
+        this._emitArgs(et.name, args);
+        this.instance._emitResourceEvent(null, null, et.name, args);
+    }
+
+    _invokeByArrayArguments(index, args) {
+        if (this.destroyed)
+            throw new Exception("Trying to access destroyed object");
+
+        if (index >= this.instance.template.functions.length)
+            throw new Exception("Function index is incorrect");
+
+        return this._p.connection.sendInvokeByArrayArguments(this._p.instanceId, index, args);
+    }
+
+    _invokeByNamedArguments(index, namedArgs) {
+        if (this.destroyed)
+            throw new Exception("Trying to access destroyed object");
+
+        if (index >= this.instance.template.functions.length)
+            throw new Exception("Function index is incorrect");
+
+        return this._p.connection.sendInvokeByNamedArguments(this._p.instanceId, index, namedArgs);
+    }
+
+    _get(index)
+    {
+        if (index >= this._p.properties.length)
+            return null;
+        return this._p.properties[index];
+    }
+
+
+    _updatePropertyByIndex(index, value)
+    {
+        var pt = this.instance.template.getPropertyTemplateByIndex(index);
+        this._p.properties[index] = value;
+        this.instance.emitModification(pt, value);
+    }
+
+    _set(index, value)
+    {
+        if (index >= this._p.properties.length)
+            return null;
+
+        var reply = new AsyncReply();
+
+        var parameters = Codec.compose(value, this._p.connection);
+        var self = this;
+
+        this._p.connection.sendRequest(IIPPacketAction.SetProperty)
+            .addUint32(self._p.instanceId).addUint8(index).addUint8Array(parameters)
+            .done()
+            .then(function(res)
+        {
+            // not really needed, server will always send property modified, this only happens if the programmer forgot to emit in property setter
+            self._p.properties[index] = value;
+            reply.trigger(null);
+        });
+
+        return reply;
+    }
+}