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Real-World AJAX Book Preview: Window Event Handling

Real-World AJAX Book Preview: Window Event Handling

This content is reprinted from Real-World AJAX: Secrets of the Masters published by SYS-CON Books. To order the entire book now along with companion DVDs for the special pre-order price, click here for more information. Aimed at everyone from enterprise developers to self-taught scripters, Real-World AJAX: Secrets of the Masters is the perfect book for anyone who wants to start developing AJAX applications.

Window Event Handling
The JavaScript file handles various window-related events such as resizing the window in response to mouse-drag events on the four edges, maximizing the window or closing the window in response to mouse-click events, or moving the window in response to mouse-drag events on the title bar. On the other side, the JavaScript file also fires window events to the toolkit's event management system so that if a listener is registered for a certain window event, the listener can be called.

Window Widget API
The JavaScript file also provides an API for developers to program this window object, such as setting the window title or resizing the window programmatically. The code below lets developers set the title, status, and icon of a window object:

Listing 15.3

function _nWindowSetTitle(title)
{
   this.title=title;
   if(!this.wTitleText)
   {
     requestManager.request(this,"setTitle",25,new Array(title));
     return;
   }
   this.wTitleText.innerHTML=title;
}

function _nWindowSetStatus(s)
{
   if(!this.wStatusText)
   {
     requestManager.request(this,"setStatus",25,new Array(s));
     return;
   }
   this.wStatusText.innerHTML=s;
   this.statusText=s;
}

function _nWindowSetIcon(iconURL)
{
   if(!this.wIconImg)
   {
     requestManager.request(this,"setIcon",105,new Array(iconURL));
     return;
   }
   this.wIconImg.src=iconURL;
   this.winIcon=iconURL;
}

AjaxWord Client Application Logic
AjaxWord does a significant amount of processing on the client side for application performance reasons. With a lot of code on the client side, applications can deliver better performance. However, such applications must be designed and coded carefully to avoid code maintenance problems.

The abstraction of UI widgets into a generic AJAX toolkit certainly helps code maintenance. AjaxWord also uses an object-oriented, event-driven approach to develop the application's client-side logic to manage and maintain the client-side code.

All client-side logic resides in two JavaScript files: nwWord.js and nwWordMenuListener.js. The first JavaScript file defines the application-wide logic while the second one responds to menu and toolbar events.

Loading the Application
For applications that have a significant amount of code on the client side, developers have to consider how the application is being loaded. Otherwise users will think the application is slow and abandon it.

AjaxWord requires a significant amount of initial download (several hundred kilobytes, dozens of HTML and JavaScript files, and many image files). This download process can take anywhere from a few seconds on a fast connection to 40 seconds on a slow dialup connection. To engage the user and improve perceived performance, AjaxWord uses a progress bar to indicate the loading progress so that the user knows the status and gets constant visual feedback, as shown in Figure 15.13

AjaxWord uses the code snippet below to update the progress bar and the status message. This code snippet follows each JavaScript file declaration statement so the "loadProgress1()" method will be executed every time a new file finishes loading:

<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>

This way the user sees the progress being made as the application loads. Listing 15.4 is the loading page for AjaxWord:

Listing 15.4

<html>
<head>
<title>Progressbar</title>
<SCRIPT TYPE="text/JavaScript" SRC="../client_lib/is.js"></SCRIPT>
<Script TYPE="text/JavaScript">
   var nexArray=new Array("Event Synchronization",
   "Request Management","Object Management","Event Management",
   "Drap and Drop","Application Infrastructure","Advanced Windows System",
   "Server Communcation","Cascade Menu", "Interactive Dialog",
   "Empower the Next Generation Web","Web-based File Management",
   "Messaging","Empower the Next Generation Software",
   "Web-based Word Processing","The Webpage is the Software",
   "Extending Your OS to the Web");

   var currentProgress=0;
   function loadProgress1() {
     currentProgress++;
     var pro=Math.floor(currentProgress*100/nexArray.length);
     if(pro>99) pro=100;
     pro=pro/100;
     if(currentProgress>nexArray.length)
     currentProgress=nexArray.length; if(is.ns) {if(window.progress) progress(pro);}
else { if(parent.progress) parent.progress(pro,nexArray[currentProgress-1]);} } </
script>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</SCRIPT>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/JEvent.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/NRequestManager.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/JObjectManager.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/JEventManager.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/JDragManager.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/JPanel.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/NWindow.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nServer.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nwMenu.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nwDialog.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nwToolbar.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nwFileDialog.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nwMsgDialog.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nwFixedTable.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nwEditCtrl.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nwTabPanel.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
<SCRIPT TYPE="text/JavaScript" SRC="../ajaxword/nwWord.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">loadProgress1();</script>
</head>
</body>
</html>

Initializing the Application User Interface and Asynchronous Communications
After all script files have been downloaded, AjaxWord initializes its user interface by loading the following HTML document (ajaxword.html). It, in turn, loads two additional HTML documents, nwWordIEMenubar.html and nwWordBg.html. The entire user interface is defined by these two HTML documents. The former defines the menu bar and toolbar. The latter defines the application's MDI environment. Listing 15.5 is the HTML document (ajaxword.html) responsible for initializing the application user interface:

Listing 15.5

<HTML>
<HEAD>
<TITLE>Welcome to AjaxWord</TITLE>
<SCRIPT TYPE="text/JavaScript" SRC="../client_lib/is.js"></SCRIPT>
<SCRIPT TYPE="text/JavaScript">
   _nxLoadActiveX("../client_lib","JEvent", "JObjectManager",
   "JEventManager","JPanel","JDragManager","NRequestManager","nwDialog");
</SCRIPT>
<SCRIPT TYPE="text/JavaScript">
var topPanel; var contentPanel; //var dialogPanel;
function initDoc() {
   pageWidth = (is.ns4)? window.innerWidth: document.body.offsetWidth;
   pageHeight = (is.ns4)? window.innerHeight : document.body.offsetHeight;
   topPanel=new JPanel(null,0,0,pageWidth,66,null,null,null,true,true,window);
   contentPanel=new JPanel(null,0,66,pageWidth,pageHeight-66,null,null,null,true,true,win
dow);
   topPanel.paint();
   contentPanel.paint();      //alert(topPanel.html);
     topPanel.load("nwWordIEMenubar.html");
     contentPanel.load("nwWordBg.html");
   }

</SCRIPT>
</HEAD>
<body
   style="BORDER-BOTTOM: 0px; BORDER-LEFT: 0px; BORDER-RIGHT: 0px; BORDER-TOP: 0px; MARGIN:
0px"
   scroll=no onload="initDoc();">
<iframe id="nServer1" name="nServer1" height=0 width=0></iframe>
<iframe id="nServer2" name="nServer2" height=0 width=0></iframe>
<iframe id="nServer3" name="nServer3" height=0 width=0></iframe>
<iframe id="nServer4" name="nServer4" height=0 width=0></iframe>

<form id="nServerPost1" name="nServerPost1" method="post"
   ENCTYPE="multipart/form-data">
   <input type="hidden" name="user">
   <input type="hidden" name="nwRequestID">
   <input type="hidden" name="sessionID">
   <input type="hidden" name=postData>
   <input type="hidden" name="postName">
   <input type="hidden" name="name2">
   <input type="hidden" name="data2">
</form>

<form id="nServerPost2" name="nServerPost2" method="post"
   ENCTYPE="multipart/form-data">
   <input type="hidden" name="user">
   <input type="hidden" name="nwRequestID">
   <input type="hidden" name="sessionID">
   <input type="hidden" name=""postName"">
   <input type="hidden" name="postData">
   <input type="hidden" name="name2">
   <input type="hidden" name="data2">
</form>

<SCRIPT TYPE="text/JavaScript"
   SRC="../client_lib/nServer.js"></SCRIPT>
</body>
</HTML>

After ajaxword.html finishes loading, the "onLoad" event will cause the "initDoc" method defined in this HTML document to be executed, which in turn loads nwWordIEMenubar.html and nwWordBg.html into separate container panels.

As you might have noticed from Listing 15.5, ajaxword.html also defines a few hidden "Iframe" objects. These Iframe objects are used for asynchronously communicating with the server. XML HttpRequest is not the only way to do asynchronous communication in the AJAX model. In some cases, it's actually more convenient to use the hidden "Iframe" instead. When AjaxWord was written, "Iframe" was the only option.

Further, ajaxword.html contains a few "form" elements that all fields are hidden fields. These forms are actually used to do asynchronous communications as well. When the AjaxWord client needs to send a message to the server in the background, the message is actually inserted into a hidden form field and posted to the server side as a "multipart/form-data" URL request.

Connecting the UI to Application Logic
After the nwWordIEMenubar.html file is loaded, nwWord.js is loaded in the background (actually it was already loaded by the initial loading progress screen and then cached by the browser) and the "initWord" method is called at the "onLoad" event:

<body scroll="no" class="toolbarBody"
     onselectstart="event.cancelBubble=true;return false;"
     onload="initWord()">

The "initWord()" method defined in "nwWord.js" initializes the AjaxWord client logic. It instantiates the menu bar and toolbar JavaScript controllers and associates them with the actual view objects. It also instantiates a "nwWordGUIActionListener" that listens to the menu bar and toolbar events. This is done by calling the global event manager and registering this listener object with "MenuClick," "BUTTONCLICK," "FOCUS," and "BLUR" events. "initWord" also registers the "onWordExit" method to handle the browser window close event – a subject that will be explained later in this chapter.

Listing 15.6

function initWord()
{

     pageWidth = (is.ns4)? window.innerWidth: document.body.offsetWidth;
     pageHeight = (is.ns4)? window.innerHeight : document.body.scrollHeight;
     if(parent.handleResize) parent.handleResize(pageHeight);
     menubar=new nwToolbar('menubar');
     toolbar=new nwToolbar('shortcuts');

     menuListener =new nwWordGUIActionListener();
     flistener=new focusListener();
     eventManager.addEventListener("MenuClick",menuListener);
     eventManager.addEventListener("BUTTONCLICK",menuListener);
     eventManager.addEventListener("FOCUS",flistener);
     eventManager.addEventListener("BLUR",flistener);
     toolbar.setEnable('save',false);

     if(!dialogPanel)
     {
       dialogPanel=new nwDialog("A Dialog Window",200,100,400,200,true,parent);
       dialogPanel.paint();
     }

     window.onbeforeunload=_onWordExit;
     formatSelect=document.all['formatSelect'];
     fontSelect=document.all['fontSelect'];
     sizeSelect=document.all['sizeSelect'];
}

Event Processing
"nwWordGUIActionListener.js" defines the event-handling code for this application. After it's instantiated and registered as the event handler for all menu bar and toolbar events, the event manager will route these events to this object.

This object contains two methods: onMenuClick and onButtonClick. These two methods are actually implemented by the same JavaScript function called "menuClicked." For each event, this JavaScript function will examine the "command" parameter and the source object, and route the event to the appropriate destination for processing:

Listing 15.7

function nwWordGUIActionListener()
{
   this.id="I listen to Word Menu";
   this.onMenuClick=menuClicked;
   this.onButtonClick=menuClicked;
}
function menuClicked(je)
{
   if(!je) return;
   var cmd=je.getCommand();
   var srcObj=je.getSource();
   if(cmd) cmd=cmd.toLowerCase();
   if(srcObj)
  {
     if(srcObj.id && srcObj.id=="fgColorPick")
     {
       doFormat("ForeColor",false,cmd);
       return;
     }
     else if(srcObj.id=="bgColorPick")
     {
       doFormat("BackColor",false,cmd);
       return;
     }
     else if(srcObj.id=="bgcolor")
     {
       doFormat("BgColor",false,cmd);
       return;
     }
   }
   if(cmd=="new")
   {
     openFile();
   }
   else if (cmd=="open")
   {
     var jp=showFileDialog("Open");
     jp.setFileDialog(nwFileDialog.OPEN);
     jp.fileDialogCallBack=openFile;
   }
   else if(cmd=="close")
   {
     var cw=getFocusedWindow();
     if(cw && cw.nwEditCtrl)
     {
       cw.onClose();
     }
     return;
   }
   else if(cmd=="saveas")
   {
     var cw=getFocusedWindow();
     if(cw)
     {
       cw.filename=null;
       saveFile();
     }
   }
   else if(cmd=="save")
   {
     saveFile();
   }
   else if(cmd=="pagesetup")
   {
   }
   else if(cmd=="printpreview")
   {
     showPreview();
   }
   else if(cmd=="print")
   {
     showPreview();
   }
   else if(cmd=="exit")
   {
     if(_onWordExit())
     {
       if(window.parent) window.parent.close();
       else window.close();
     }
   }
   else if(cmd=="cut")
   {
     doFormat('Cut');
     return;
   }
   else if(cmd=="copy")
   {
     doFormat('Copy');
     return;
   }
   else if(cmd=="paste")
   {
     doFormat('Paste');
     return;
   }
   else if(cmd=="selectall")
   {
     doFormat('SelectAll');
     return;
   }
   else if(cmd=="clear")
   {
     doFormat('Unselect');
     return;
   }
   else if(cmd=="find")
   {
     doDialogAction("./nwFindReplace.html","Find and Replace",550,250);
     return;
   }
   else if(cmd=="replace")
   {
     doDialogAction("./nwFindReplace.html","Find and Replace",550,250);
     return;
   }
   else if(cmd=="normalview")
   {
     var cw=getFocusedWindow();
     if(cw && cw.nwEditCtrl)
   {
     cw.nwEditCtrl.init(true);
     cw.setFocus(true);
   }
   return;
}
else if(cmd=="browseview")
{
   var cw=getFocusedWindow();
   if(cw && cw.nwEditCtrl)
   {
     cw.nwEditCtrl.init(false);
     cw.setFocus(true);
   }
   return;
   }
   else if(cmd=="preview")
   {
     showPreview();
     return;
   }
   else if(cmd=="pageview")
   {
   }
   else if(cmd=="bgimage")
   {
   }
   else if(cmd=="insertimage")
   {
     doInsert('InsertImage',true);
     return;
   }
   else if(cmd=="uploadtimage")
   {
     doDialogAction("nwUploadImage.html","Upload and Insert Image",420,160);
     return;
   }
   else if(cmd=="link")
   {
     doDialogAction(„../ajaxword/nwInputLink.html","Insert HyperLink",420,160);
     return;
   }
   else if(cmd=="button")
   {
     doInsert('InsertButton',true);
   }
   else if(cmd=="inputbutton")
   {
     doInsert('InsertInputButton',true);
   }
   else if(cmd=="hr")
   {
     doInsert('InsertHorizontalRule',true);
   }
   else if(cmd=="select")
   {
     doInsert('InsertSelectDropdown',true);
   }
   else if(cmd=="password")
   {
     doInsert('InsertInputPassword',true);
   }
   else if(cmd=="listbox")
   {
     doInsert('InsertSelectListbox',true);
   }
   else if(cmd=="textarea")
   {
     doInsert('InsertTextArea',true);
   }
   else if(cmd=="checkbox")
   {
     doInsert('InsertInputCheckbox',true);
   }
   else if(cmd=="radiobtn")
   {
     doInsert('InsertInputRadio',true);
   }
   else if(cmd=="textbox")
   {
     doInsert('InsertInputText',true);
   }
   else if(cmd=="submit")
   {
     doInsert('InsertInputSubmit',true);
   }
   else if(cmd=="reset")
   {
     doInsert('InsertInputReset',true);
   }
   else if(cmd=="inserttable")
   {
     _nwDoInsertTable();
     return;
   }
   else if(cmd=="selectcell")
   {
   }
   else if(cmd=="selectrow")
   {
   }
   else if(cmd=="selectcol")
   {
   }
   else if(cmd=="selecttable")
   {
   }
   else if(cmd=="insertcel")
   {
     _nwTableInsertCel();
     return;
   }
   else if(cmd=="insertrow")
   {
     _nwTableInsertRow();
     return;
   }
   else if(cmd=="insertcol")
   {
     _nwTableInsertCol();
     return;
   }
   else if(cmd=="deleterow")
   {
     _nwTableDeleteRow();
     return;
   }
   else if(cmd=="deletecol")
   {
     _nwTableDeleteCol();
     return;
   }
   else if(cmd=="deletecel")
   {
     _nwTableDeleteCel();
    return;
   }
   else if(cmd=="minimizeall")
   {
     for(var i=0;i<winArray.length;i++)
     {
       var wi=winArray[i];
       if(wi.isVisible()) wi.iconize();
     }
   }
   else if(cmd=="arrangewindow")
   {
     var bx=20;
     var by=20;
     var wx=bx;
     wy=by;
     var pw=500;
     ph=500;
     for(var i=0;i<winArray.length;i++)
     {
       var wi=winArray[i];
       if(i==0)
       {
         pw = wi.winLevel.document.body.offsetWidth-4;
         ph = wi.winLevel.document.body.offsetHeight-4;
       }
       if(wi.isVisible())
       {
         wi.resize(500,300);
         objectManager.bringToFront(wi);
         wi.setLocation(wx,wy);
         wx+=50;
         wy+=50;
         if(wx>pw-200)
         {
           bx+=70;
           wx=bx;
         }
         if(wy>ph-200)
         {
           by=50;
           wy=by;
         }
         if(bx>pw-200) bx=20;
       }
     }
   }
   else if(cmd=="closeall")
   {
     for(var i=0;i<winArray.length;i++)
     {
       var wi=winArray[i];
       if(wi.isVisible())
       {
         if(wi.onClose) wi.onClose();
         else wi.setVisible(false);
       }
     }
   }
   else if(cmd=="help")
   {
   }
   else if(cmd=="about")
   {
   showMsgDlg("<CENTER><H1>Ajax<i>W</i>ord</H1>Version: alpha<BR>Written and modified
   between 1996 and 2000. <BR><BR>Copyright(c)1996-2005 Coach Wei <a href='http://www.
   coachwei.com/' target=_blank>blog</a>. Open Source licensed.",
   "About AjaxWord", nwMsgDialog.OK,"../images/settings.gif");

   }
   else
   {
   }
}

Handling the Application's Exit
Unlike classic Web application developers, AJAX application developers have to pay special attention to the client-side "exit" event (say the user clicks the "close" button in the browser window). The reason is that AJAX applications typically hold state information on the client side. If the browser window is closed without proper handling, the client-side state will be lost and cause problems for the application.

AjaxWord is a good example. When the user is editing a document, if he somehow clicks the "close" button on the browser window by mistake, the browser window will be closed and his document lost.

A general way to handle this situation is to register an event handler for the "onbeforeunload" event of the "window" object. The event handler can do processing before the browser window is closed.

Listing 15.8 is the "onbeforeunload" event handler for AjaxWord. It loops though all the currently opened editing windows (stored in the "winArray" variable). For each visible editing window, it tries to save the content (the logic defined in the "onClose()" method for the "window" object). In the end, the event handler asks the user whether he or she really wants to exit from AjaxWord. If the user chooses "cancel" from the dialog, the event will be cancelled. If the user chooses "ok" from the confirmation dialog, the browser window will be closed and the application terminated on the client side.

The event handler code is:

Listing 15.8

function _onWordExit()
{
   for(var i=0;i<winArray.length;i++)
   {
     var wi=winArray[i];
     if(wi.isVisible())
     {
       if(wi.onClose()==false)
       {
         if(event)
         {
           event.returnValue="Exit from AjaxWord?";
           event.cancelBubble=true;
         }
         return false;
       }
     }
   }
   if(event) event.returnValue="Exit from AjaxWord?";
   return true;
}

AjaxWord Server Logic
AjaxWord server code is actually fairly simple, straightforward Java code. It does user registration, verification, and loads and saves files. Such tasks are trivial to Java developers and so we're not going to elaborate on them.

Summary
AjaxWord is a Web-based word processor that aims to mimic Microsoft Word. It closely resembles the look-and-feel of Microsoft Word with a rich graphical user interface, partial screen update, and asynchronous server communications. Its Web-based nature lets users securely store user documents on the server and so gives users the flexibility to use the application from anywhere.

Writing complex applications like AjaxWord requires careful design – otherwise there will be significant development and maintenance challenges. AjaxWord uses a central controller to manage and dispatch requests on the server side. On the client side, it separates all rich UI widget-related code into a generic AJAX toolkit and uses an "event dispatching" mechanism to process client events.

AJAX applications tend to keep state information on the client side. This requires developers to pay attention to state consistency. For example, it's recommended that they write code to handle application state when the user closes the browser window.

AjaxWord is open source. It's available as a free service at http://www.ajaxword.com. Developers can also download the entire code from this Web site.

This content is reprinted from Real-World AJAX: Secrets of the Masters published by SYS-CON Books. To order the entire book now along with companion DVDs, click here to order.

More Stories By Coach Wei

Coach Wei is founder and CEO of Yottaa, a web performance optimization company. He is also founder and Chairman of Nexaweb, an enterprise application modernization software company. Coding, running, magic, robot, big data, speed...are among his favorite list of things (not necessarily in that order. His coding capability is really at PowerPoint level right now). Caffeine, doing something entrepreneurial and getting out of sleeping are three reasons that he gets up in the morning and gets really excited.

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Most Recent Comments
praveen3232 05/22/09 03:05:00 AM EDT

hi Coach Wei and all,

how to get ajaxword source code.www.ajaxword.com redirect to online chess.if you have source code pls email me. my email ID [email protected]
advance thanks

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Cloud Expo | DXWorld Expo have announced the conference tracks for Cloud Expo 2018. Cloud Expo will be held June 5-7, 2018, at the Javits Center in New York City, and November 6-8, 2018, at the Santa Clara Convention Center, Santa Clara, CA. Digital Transformation (DX) is a major focus with the introduction of DX Expo within the program. Successful transformation requires a laser focus on being data-driven and on using all the tools available that enable transformation if they plan to survive ov...
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Sanjeev Sharma Joins June 5-7, 2018 @DevOpsSummit at @Cloud Expo New York Faculty. Sanjeev Sharma is an internationally known DevOps and Cloud Transformation thought leader, technology executive, and author. Sanjeev's industry experience includes tenures as CTO, Technical Sales leader, and Cloud Architect leader. As an IBM Distinguished Engineer, Sanjeev is recognized at the highest levels of IBM's core of technical leaders.
Smart cities have the potential to change our lives at so many levels for citizens: less pollution, reduced parking obstacles, better health, education and more energy savings. Real-time data streaming and the Internet of Things (IoT) possess the power to turn this vision into a reality. However, most organizations today are building their data infrastructure to focus solely on addressing immediate business needs vs. a platform capable of quickly adapting emerging technologies to address future ...
Mobile device usage has increased exponentially during the past several years, as consumers rely on handhelds for everything from news and weather to banking and purchases. What can we expect in the next few years? The way in which we interact with our devices will fundamentally change, as businesses leverage Artificial Intelligence. We already see this taking shape as businesses leverage AI for cost savings and customer responsiveness. This trend will continue, as AI is used for more sophistica...
With tough new regulations coming to Europe on data privacy in May 2018, Calligo will explain why in reality the effect is global and transforms how you consider critical data. EU GDPR fundamentally rewrites the rules for cloud, Big Data and IoT. In his session at 21st Cloud Expo, Adam Ryan, Vice President and General Manager EMEA at Calligo, examined the regulations and provided insight on how it affects technology, challenges the established rules and will usher in new levels of diligence arou...
In his general session at 21st Cloud Expo, Greg Dumas, Calligo’s Vice President and G.M. of US operations, discussed the new Global Data Protection Regulation and how Calligo can help business stay compliant in digitally globalized world. Greg Dumas is Calligo's Vice President and G.M. of US operations. Calligo is an established service provider that provides an innovative platform for trusted cloud solutions. Calligo’s customers are typically most concerned about GDPR compliance, application p...
"I focus on what we are calling CAST Highlight, which is our SaaS application portfolio analysis tool. It is an extremely lightweight tool that can integrate with pretty much any build process right now," explained Andrew Siegmund, Application Migration Specialist for CAST, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
As many know, the first generation of Cloud Management Platform (CMP) solutions were designed for managing virtual infrastructure (IaaS) and traditional applications. But that's no longer enough to satisfy evolving and complex business requirements. In his session at 21st Cloud Expo, Scott Davis, Embotics CTO, explored how next-generation CMPs ensure organizations can manage cloud-native and microservice-based application architectures, while also facilitating agile DevOps methodology. He expla...
SYS-CON Events announced today that Evatronix will exhibit at SYS-CON's 21st International Cloud Expo®, which will take place on Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA. Evatronix SA offers comprehensive solutions in the design and implementation of electronic systems, in CAD / CAM deployment, and also is a designer and manufacturer of advanced 3D scanners for professional applications.
SYS-CON Events announced today that Synametrics Technologies will exhibit at SYS-CON's 22nd International Cloud Expo®, which will take place on June 5-7, 2018, at the Javits Center in New York, NY. Synametrics Technologies is a privately held company based in Plainsboro, New Jersey that has been providing solutions for the developer community since 1997. Based on the success of its initial product offerings such as WinSQL, Xeams, SynaMan and Syncrify, Synametrics continues to create and hone inn...
To get the most out of their data, successful companies are not focusing on queries and data lakes, they are actively integrating analytics into their operations with a data-first application development approach. Real-time adjustments to improve revenues, reduce costs, or mitigate risk rely on applications that minimize latency on a variety of data sources. In his session at @BigDataExpo, Jack Norris, Senior Vice President, Data and Applications at MapR Technologies, reviewed best practices to ...
DevOps promotes continuous improvement through a culture of collaboration. But in real terms, how do you: Integrate activities across diverse teams and services? Make objective decisions with system-wide visibility? Use feedback loops to enable learning and improvement? With technology insights and real-world examples, in his general session at @DevOpsSummit, at 21st Cloud Expo, Andi Mann, Chief Technology Advocate at Splunk, explored how leading organizations use data-driven DevOps to close th...
Continuous Delivery makes it possible to exploit findings of cognitive psychology and neuroscience to increase the productivity and happiness of our teams. In his session at 22nd Cloud Expo | DXWorld Expo, Daniel Jones, CTO of EngineerBetter, will answer: How can we improve willpower and decrease technical debt? Is the present bias real? How can we turn it to our advantage? Can you increase a team’s effective IQ? How do DevOps & Product Teams increase empathy, and what impact does empath...
Most technology leaders, contemporary and from the hardware era, are reshaping their businesses to do software. They hope to capture value from emerging technologies such as IoT, SDN, and AI. Ultimately, irrespective of the vertical, it is about deriving value from independent software applications participating in an ecosystem as one comprehensive solution. In his session at @ThingsExpo, Kausik Sridhar, founder and CTO of Pulzze Systems, discussed how given the magnitude of today's application ...
There is a huge demand for responsive, real-time mobile and web experiences, but current architectural patterns do not easily accommodate applications that respond to events in real time. Common solutions using message queues or HTTP long-polling quickly lead to resiliency, scalability and development velocity challenges. In his session at 21st Cloud Expo, Ryland Degnan, a Senior Software Engineer on the Netflix Edge Platform team, will discuss how by leveraging a reactive stream-based protocol,...
Digital transformation is about embracing digital technologies into a company's culture to better connect with its customers, automate processes, create better tools, enter new markets, etc. Such a transformation requires continuous orchestration across teams and an environment based on open collaboration and daily experiments. In his session at 21st Cloud Expo, Alex Casalboni, Technical (Cloud) Evangelist at Cloud Academy, explored and discussed the most urgent unsolved challenges to achieve f...
"Digital transformation - what we knew about it in the past has been redefined. Automation is going to play such a huge role in that because the culture, the technology, and the business operations are being shifted now," stated Brian Boeggeman, VP of Alliances & Partnerships at Ayehu, in this SYS-CON.tv interview at 21st Cloud Expo, held Oct 31 – Nov 2, 2017, at the Santa Clara Convention Center in Santa Clara, CA.
You know you need the cloud, but you're hesitant to simply dump everything at Amazon since you know that not all workloads are suitable for cloud. You know that you want the kind of ease of use and scalability that you get with public cloud, but your applications are architected in a way that makes the public cloud a non-starter. You're looking at private cloud solutions based on hyperconverged infrastructure, but you're concerned with the limits inherent in those technologies. What do you do?