Click here to close now.

Welcome!

Adobe Flex Authors: Matthew Lobas, PR.com Newswire, Shelly Palmer, Kevin Benedict

Related Topics: Adobe Flex, Java, ColdFusion, FlexSeminar.com

Adobe Flex: Article

"Real-World Flex" by Adobe's Christophe Coenraets

Tips and tricks from Adobe's intrepid Flex Evangelist

Some people take the dog for a walk, other go play a round of golf. Not Christophe Coenraets. His idea of a good time is to illustrate Flex and JMS integration by extending a simple "realtime feed" application that he built a while back! Web Developer's & Designer's Journal is proud to bring you each month two of the month's best tips from Adobe's intrepid Flex Hero.

Using Flex 2 with Flash Media Server
I recently built a proof of concept that included a call center integration scenario. The use case revolved around a user getting stuck while trying to complete an online process, and engaging in a real time collaboration session with a customer services representative to sort out the problem.

The nature of the collaboration between the end-user and the support representative was very rich and included the following features:

  1. Chat
  2. Videoconference / video chat
  3. The support representative was able to "drive" the end-user's UI
  4. The support representative was also able to remotely fill in the user's form. In other words, data typed in the support rep's application automatically appeared (in real time) in the user's app.
From the end-user point of view, all this was done "in context" without ever leaving the application, and without starting any other application.

The application turned out to be really easy to implement with Flex 2:

  • Features (1) and (3) were enabled by the new Message Service in Flex 2.
  • Feature (4) was enabled by the Data Services in Flex 2. Using the data services, two clients can point to the same destination (the same data set). Changes made by one client are automatically reflected in the other client. No code required!
  • Feature (2) was enabled by the Flash Media Server.
Here's a simple example of how to integrate Flex and Flash Media Server to support rich media streaming and video-conferencing. This is surprisingly easy to do with just a few lines of code.

To run this example you will have to:

  1. Install FlexBuilder 2. You can download the beta here: http://labs.adobe.com/.
  2. Install the Flash Media Server (you can download a free developer edition here: www.adobe.com/products/flashmediaserver/
  3. Download the sample application code here: http://coenraets.com/apps/fms.zip
  4. In C:\Program Files\Macromedia\Flash Media Server 2\applications\flex_videoconference, create a directory called flex_videoconference and copy the main.asc file in that directory
  5. Create a FlexBuilder project and copy fms.mxml and VideoContainer.as in that project
  6. Run fms.mxml
The application starts your webcam, publishes the captured video stream to Flash Media Server.and then "plays" the video streamed by Flash Media Sever in a second video component.

Embedding HTML in a Flex Application using an IFrame
I have recently been involved in several projects where there was a need to embed HTML content in a Flex application. Depending on the specific requirements of your application, there are a couple of approaches you can use...

  1. The Flex Text components (Label, Text, TextArea) support basic HTML formatting through their htmlText attribute. You can find an example of this approach in the Samples Explorer where the Code Viewer uses the HTML capabilities of the TextArea to provide syntax coloring.
  2. You can embed a Flex application in a page that also contains traditional HTML. The Flex application can communicate with the HTML document (and the other way around) through JavaScript. You can also embed multiple Flex applications in a page. These applications can then communicate directly with each others using the LocalConnection API.
Note: I am not advocating that you use this technique as your default approach to combine Flex and HTML content. Depending on your application, the approaches (1) and (2) described above may represent a better solution. If these approaches don't meet your specific requirements, the technique implemented in the attached example can be very useful.

In some cases, these approaches may not go far enough: You may need a single Flex application that embeds HTML content with no restriction in terms of HTML tags and features supported.

In this case, another approach is to position an IFrame on top of a specific area of your Flex application to provide a container for the HTML content which will then appear embedded in the application. This technique may initially sound complex or cumbersome to implement, especially if the different containers of your Flex application resize dynamically and you have to keep the IFrame in sync. In the attached example, I abstracted the complexity of this approach in an IFrame component written in mxml. The IFrame component extends Canvas and is used like any other Flex container. Behind the scenes, it acts as a proxy for the actual HTML IFrame (Figure 1). For example, when the IFrame component is resized or moved it automatically asks the HTML document to resize/move the actual IFrame.

More Stories By Christophe Coenraets

Christophe Coenraets currently works as a Senior Technical Evangelist at Adobe. Before joining Adobe, Christophe was an evangelist at Macromedia, focusing on Rich Internet Applications and Enterprise integration. Prior to Macromedia, Christophe was the head of Java and J2EE Technical Evangelism at Sybase, where he started working on Java Enterprise projects in 1996. Before joining Sybase in the US, Christophe held different positions at Powersoft in Belgium, including Principal Consultant for PowerBuilder, and Manager of the Professional Services organization. Before joining Powersoft, Christophe worked as a developer and architect on several retail and BPM projects. Christophe has been a regular speaker at conferences worldwide for the last 10 years.

Comments (3) View Comments

Share your thoughts on this story.

Add your comment
You must be signed in to add a comment. Sign-in | Register

In accordance with our Comment Policy, we encourage comments that are on topic, relevant and to-the-point. We will remove comments that include profanity, personal attacks, racial slurs, threats of violence, or other inappropriate material that violates our Terms and Conditions, and will block users who make repeated violations. We ask all readers to expect diversity of opinion and to treat one another with dignity and respect.


Most Recent Comments
SShah 06/14/06 05:02:53 AM EDT

Hello,

i have tried this example but getting the error that NetConnection object cannot be connected.Can anyone help me resolve this issue.

Web Developer's & Designer's Journal 05/22/06 04:16:47 PM EDT

Some people take the dog for a walk, other go play a round of golf. Not Christophe Coenraets. His idea of a good time is to illustrate Flex and JMS integration by extending a simple 'realtime feed' application that he built a while back! Web Developer's & Designer's Journal is proud to bring you each month two of the month's best tips from Adobe's intrepid Flex Hero.

Web Developer's & Designer's Journal 05/22/06 03:30:48 PM EDT

Some people take the dog for a walk, other go play a round of golf. Not Christophe Coenraets. His idea of a good time is to illustrate Flex and JMS integration by extending a simple 'realtime feed' application that he built a while back! Web Developer's & Designer's Journal is proud to bring you each month two of the month's best tips from Adobe's intrepid Flex Hero.

@ThingsExpo Stories
Participants will reach the final if their IoT solution is liked. A community vote will determine the best solutions submitted in each country, after which an expert jury will select the national winners and the best international IoT solution. Each country's best solution can win a national marketing campaign worth up to €30,000 and become a partner in Deutsche Telekom's participating markets. The winning international solution can become partner of Deutsche Telekom Group across all eight countries and reach out to a potential of 10,8 million business customers. Deutsche Telekom Group has a...
Recent technology advances in miniaturization has positioned the wearables as the pinnacle of technology convergence with the human body. We inquire if wearables are mere standard miniaturized devices extended with the connectivity and present our views on considerations like design, applications, performance, efficiency, interoperability, usage scenarios, human device interaction and consequent trade-offs enabling wearables to impart optimal value.
WebRTC Summit has announced today that Peter Dunkley has been named summit chair of WebRTC Summit 2015 New York. The 4th International WebRTC Summit will take place on June 9-11, 2015, at the Javits Center in Manhattan, New York. @ThingsExpo anticipates 90% of WebRTC companies & developers will monetize their products & services through IoT by 2016. Peter Dunkley is Technical Director at Acision. He graduated from The University of Edinburgh in 2000 with a BSc (Hons) in Computer Science. After graduation Peter worked on a PSTN switch developing signalling stacks for SS7, ISDN and simi...
In this session we look at creating interactive communications via the web by adding messaging, file transfer, and group communication (group chat and audio/video conferencing) into the web experience. We will also discuss potential applications of this technology in areas including B2B, B2C, P2P, and gaming. Peter is Technical Director at Acision. He graduated from The University of Edinburgh in 2000 with a BSc (Hons) in Computer Science. After graduation Peter worked on a PSTN switch developing signalling stacks for SS7, ISDN and similar protocols and creating advanced routing and serv...
SYS-CON Events announced today that Windstream, a leading provider of advanced network and cloud communications, has been named “Silver Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9–11, 2015, at the Javits Center in New York, NY. Windstream (Nasdaq: WIN), a FORTUNE 500 and S&P 500 company, is a leading provider of advanced network communications, including cloud computing and managed services, to businesses nationwide. The company also offers broadband, phone and digital TV services to consumers primarily in rural areas.
SYS-CON Events announced today that ProfitBricks, the provider of painless cloud infrastructure, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY., and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. ProfitBricks is the IaaS provider that offers a painless cloud experience for all IT users, with no learning curve. ProfitBricks boasts flexible cloud servers and networking, an integrated Data Center Designer tool f...
SYS-CON Events announced today that Dyn, the worldwide leader in Internet Performance, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Dyn is a cloud-based Internet Performance company. Dyn helps companies monitor, control, and optimize online infrastructure for an exceptional end-user experience. Through a world-class network and unrivaled, objective intelligence into Internet conditions, Dyn ensures traffic gets delivered faster, safer, and more reliably than ever.
SYS-CON Events announced today that kintone has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. kintone promotes cloud-based workgroup productivity, transparency and profitability with a seamless collaboration space, build your own business application (BYOA) platform, and workflow automation system.
SYS-CON Events announced today that Open Data Centers (ODC), a carrier-neutral colocation provider, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. Open Data Centers is a carrier-neutral data center operator in New Jersey and New York City offering alternative connectivity options for carriers, service providers and enterprise customers.
SYS-CON Events announced today that On the Avenue Marketing Group, a sales and marketing firm that utilizes events to market and sell products to consumers, will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. On the Avenue Marketing Group (OTA) is a sales and marketing firm that utilizes events to market and sell products to consumers. On behalf of our clients, we attend thousands of fairs, festivals, expos, concerts, conferences, and sporting events annually, helping them reach millions of individuals ...
SYS-CON Events announced today that ActiveState, the leading independent Cloud Foundry and Docker-based PaaS provider, has been named “Silver Sponsor” of SYS-CON's DevOps Summit New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. ActiveState believes that enterprises gain a competitive advantage when they are able to quickly create, deploy and efficiently manage software solutions that immediately create business value, but they face many challenges that prevent them from doing so. The Company is uniquely positioned to help address these challenges thro...
SYS-CON Events announced today that Vitria Technology, Inc. will exhibit at SYS-CON’s @ThingsExpo, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. Vitria will showcase the company’s new IoT Analytics Platform through live demonstrations at booth #330. Vitria’s IoT Analytics Platform, fully integrated and powered by an operational intelligence engine, enables customers to rapidly build and operationalize advanced analytics to deliver timely business outcomes for use cases across the industrial, enterprise, and consumer segments.
SYS-CON Events announced today that Alert Logic, the leading provider of Security-as-a-Service solutions for the cloud, has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® and DevOps Summit 2015 New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo® and DevOps Summit 2015 Silicon Valley, which will take place November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA.
The WebRTC Summit 2015 New York, to be held June 9-11, 2015, at the Javits Center in New York, NY, announces that its Call for Papers is open. Topics include all aspects of improving IT delivery by eliminating waste through automated business models leveraging cloud technologies. WebRTC Summit is co-located with 16th International Cloud Expo, @ThingsExpo, Big Data Expo, and DevOps Summit.
SYS-CON Events announced today that Akana, formerly SOA Software, has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. Akana’s comprehensive suite of API Management, API Security, Integrated SOA Governance, and Cloud Integration solutions helps businesses accelerate digital transformation by securely extending their reach across multiple channels – mobile, cloud and Internet of Things. Akana enables enterprises to share data as APIs, connect and integrate applications, drive part...
SYS-CON Events announced today that CommVault has been named “Bronze Sponsor” of SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY, and the 17th International Cloud Expo®, which will take place on November 3–5, 2015, at the Santa Clara Convention Center in Santa Clara, CA. A singular vision – a belief in a better way to address current and future data management needs – guides CommVault in the development of Singular Information Management® solutions for high-performance data protection, universal availability and sim...
SYS-CON Events announced today that SafeLogic has been named “Bag Sponsor” of SYS-CON's 16th International Cloud Expo® New York, which will take place June 9-11, 2015, at the Javits Center in New York City, NY. SafeLogic provides security products for applications in mobile and server/appliance environments. SafeLogic’s flagship product CryptoComply is a FIPS 140-2 validated cryptographic engine designed to secure data on servers, workstations, appliances, mobile devices, and in the Cloud.
The best mobile applications are augmented by dedicated servers, the Internet and Cloud services. Mobile developers should focus on one thing: writing the next socially disruptive viral app. Thanks to the cloud, they can focus on the overall solution, not the underlying plumbing. From iOS to Android and Windows, developers can leverage cloud services to create a common cross-platform backend to persist user settings, app data, broadcast notifications, run jobs, etc. This session provides a high level technical overview of many cloud services available to mobile app developers, includi...
BroadSoft on Tuesday announced that it is a recipient of the 2014 Frost & Sullivan Market Leadership Award in the Hosted/Cloud Internet Protocol (IP) Telephony market for Latin America. According to Frost & Sullivan market research, the Latin America (LATAM) hosted/cloud Internet Protocol (IP) telephony market, including integrated unified communications and collaboration (UC&C) applications, is currently experiencing a rapid growth trajectory and is expected to exhibit a tenfold rise in annual revenues in the 2013-2020 period. With more than 600 cloud deployments internationally, BroadSoft w...
SYS-CON Events announced today that StorPool Storage will exhibit at SYS-CON's 16th International Cloud Expo®, which will take place on June 9-11, 2015, at the Javits Center in New York City, NY. StorPool is distributed storage software that allows service providers, enterprises and other cloud builders to run data storage on standard x86 servers, instead of using expensive and inefficient storage arrays (SAN).