Initial service version, static support files

@@ -7,5 +7,14 @@
     <classpath type="jar" location="lib/*"/>
     <classpath type="jar" location="build/lib/*"/>
 
+    <service-resource type="model" loader="main" location="servicedef/services.xml"/>
+
+    <webapp name="comet-messenger"
+        title="Comet Messenger"
+        server="default-server"
+        location="webapp"
+        mount-point="/comet"
+        app-bar-display="false"/>
+
 </ofbiz-component>
 

@@ -5,4 +5,19 @@
     <vendor>DriverUp</vendor>
     <version>1.0</version>
 
+    <service name="sendCometMessage" engine="java"
+     location="com.brainfood.ofbiz.CometMessengerServlet"
+     invoke="sendMessage" auth="false">
+        <attribute name="realm" type="String" mode="IN" optional="false"/>
+        <attribute name="channel" type="String" mode="IN" optional="false"/>
+        <attribute name="message" type="String" mode="IN" optional="false"/>
+    </service>
+
+    <service name="receiveCometMessage" engine="java"
+     location="com.brainfood.ofbiz.CometMessengerServlet"
+     invoke="receiveMessage" auth="false">
+        <attribute name="realm" type="String" mode="IN" optional="false"/>
+        <attribute name="channel" type="String" mode="IN" optional="false"/>
+        <attribute name="message" type="String" mode="IN" optional="false"/>
+    </service>
 </services>

+<?xml version="1.0"?>
+<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN" "http://java.sun.com/dtd/web-app_2_3.dtd">
+
+<!--
+Licensed to the Apache Software Foundation (ASF) under one
+or more contributor license agreements.  See the NOTICE file
+distributed with this work for additional information
+regarding copyright ownership.  The ASF licenses this file
+to you under the Apache License, Version 2.0 (the
+"License"); you may not use this file except in compliance
+with the License.  You may obtain a copy of the License at
+
+http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing,
+software distributed under the License is distributed on an
+"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+KIND, either express or implied.  See the License for the
+specific language governing permissions and limitations
+under the License.
+-->
+
+<web-app>
+  <display-name>DriverUp API</display-name>
+  <description>DriverUp API</description>
+
+  <context-param>
+    <param-name>entityDelegatorName</param-name>
+    <param-value>default</param-value>
+    <description>The Name of the Entity Delegator to use, defined in entityengine.xml</description>
+  </context-param>
+  <context-param>
+    <param-name>localDispatcherName</param-name>
+    <param-value>cometmessenger</param-value>
+    <description>A unique name used to identify/recognize the local dispatcher for the Service Engine</description>
+  </context-param>
+
+  <servlet>
+    <servlet-name>CometMessengerServlet</servlet-name>
+    <display-name>CometMessengerServlet</display-name>
+    <description>Comet Messenger Servlet</description>
+    <servlet-class>com.brainfood.ofbiz.CometMessengerServlet</servlet-class>
+    <load-on-startup>1</load-on-startup>
+  </servlet>
+  <servlet-mapping>
+    <servlet-name>CometMessengerServlet</servlet-name>
+    <url-pattern>/messenger</url-pattern>
+  </servlet-mapping>
+</web-app>

+define([], function() {
+    var listeners = [];
+    var messenger = {
+        process: function() {
+            var url = "/comet/messenger"
+            var request =  new XMLHttpRequest();
+            var responseLength = 0;
+            request.open("GET", url, true);
+            request.setRequestHeader("Content-Type","application/x-javascript;");
+            request.onreadystatechange = function() {
+                if (request.readyState == 3 || request.readyState == 4) {
+                    if (request.status == 200){
+                        if (request.responseText) {
+                            var newText = request.responseText.substr(responseLength);
+                            if (newText.length > 0) {
+                                for (var i=0; i < listeners.length; i++) {
+                                   listeners[i](newText); 
+                                }
+                            }
+                            responseLength = request.responseText.length;
+                        }
+                    }
+                    if (request.readyState == 4) {
+                        if (request.status == 200) {
+                            messenger.process();
+                        } else {
+                            console.log('Error, retrying in 5 seconds');
+                            setTimeout(function() { messenger.process(); }, 5000);
+                        }
+                    }
+                }
+            };
+            request.send(null);
+        },
+        addListener: function(listener) {
+            listeners.push(listener);
+        },
+        removeListener: function(listener) {
+            var index = listeners.indexOf(listener);
+            if (index > -1) {
+                array.splice(index, 1);
+            }
+        }
+    }
+    messenger.process();
+
+    return messenger;
+});