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Real Time Event Dispatcher

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Peter Dietrich

Pushing symfony events in real time to your clients This talk, held at the symfony live Paris unconference, gives an overview about how events thrown in symfony can be dispatched in real time to web clients. It describes the architecture of the solution and provides examples using the open source comet server APE

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Real Time Event Dispatcher ,[object Object],[object Object],[object Object]
Imagine Games Remember Google Wave? No? Anyone??? Read/Delete a message, all favicons change Your turn? Instant notification GMail Like „tail –f /var/log/my.log >some.browsers“
IT‘S JUST SOOOO COOL!!! You click somewhere and immediately see a response somewhere else... Real Time Event Dispatcher
@KaroDidi 1 wife, 2 kids, 3 monitors 34 years Day-Job: Working on Excel/Access VBA Applications :-/ True heart belongs to Web and PHP since >10 Years Own company/Freelancer www.smartpixelmedia.de Real-Life? Ah, right... Mountainbike Model plane/heli Peter Dietrich Real Time Event Dispatcher Hobbies: www.karopapier.de www.xosofox.de www.managerator.de www.tmeet.de www.timini.de www.beididi.de www.jobeet.de / www.symfony2.de www.d1d.li
The Big Bicture Some PHP Some data transport Some JS Real Time Event Dispatcher sfBackend APE
Real Time Event Dispatcher lib/model APE Custom Event Handler sfEventHandler Browser Browser Browser Throw Event HTTP Request JSON data Process Event Response on long-polling AJAX request Event bubbling through Browser Tab Browser Tab
Real-Time?? Really really? ,[object Object],[object Object],Real Time Event Dispatcher * Conditions apply: Network latency, Server load, …
Polling? ,[object Object],Real Time Event Dispatcher Alexis Richardson http://www.rabbitmq.com/resources/RabbitMQ_Oxford_Geek_Night.pdf (Slide 23) http://www.ape-project.org/comics/1/Chapter-I-common-let-s-push.html
AJAX Long Polling ,[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher Server Client 25s 25s POST Data Rx Data
Comet Servers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher BTW, your Apache would of course instantly go down...
What is APE? ,[object Object],[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher http://www.xosofox.de/2010/03/playing-with-my-new-pet-ape/
... Some APE specifics ,[object Object],[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher http://www.xosofox.de/2010/10/ape-user-handling/
Enough! Gimmi code! ,[object Object],Real Time Event Dispatcher Dennis Benkert @denderello #sfLive2010 http://www.slideshare.net/denderello/symfony-live-2010-using-symfony-events-to-create-clean-class-interfaces
... More code ,[object Object],Real Time Event Dispatcher Event Payload Channel Define your payload here!
... Even more Code ,[object Object],[object Object],[object Object],Real Time Event Dispatcher
… Even more Code Real Time Event Dispatcher Event Payload Channel
Server Side JS ,[object Object],Real Time Event Dispatcher Event Payload Channel
Gimmi JS ,[object Object],Real Time Event Dispatcher
Gimmi JS ,[object Object],[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher
Some things to consider ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher
APE Alternatives? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher
Psst... Annoying stuff ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher
Recap ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Real Time Event Dispatcher
Further reading ,[object Object],[object Object],[object Object],Real Time Event Dispatcher
There‘s one more thing ,[object Object],[object Object],[object Object],Real Time Event Dispatcher ... And please give http://tmeet.de/sflive a try

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Real Time Event Dispatcher

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  • 2. Imagine Games Remember Google Wave? No? Anyone??? Read/Delete a message, all favicons change Your turn? Instant notification GMail Like „tail –f /var/log/my.log >some.browsers“
  • 3. IT‘S JUST SOOOO COOL!!! You click somewhere and immediately see a response somewhere else... Real Time Event Dispatcher
  • 4. @KaroDidi 1 wife, 2 kids, 3 monitors 34 years Day-Job: Working on Excel/Access VBA Applications :-/ True heart belongs to Web and PHP since >10 Years Own company/Freelancer www.smartpixelmedia.de Real-Life? Ah, right... Mountainbike Model plane/heli Peter Dietrich Real Time Event Dispatcher Hobbies: www.karopapier.de www.xosofox.de www.managerator.de www.tmeet.de www.timini.de www.beididi.de www.jobeet.de / www.symfony2.de www.d1d.li
  • 5. The Big Bicture Some PHP Some data transport Some JS Real Time Event Dispatcher sfBackend APE
  • 6. Real Time Event Dispatcher lib/model APE Custom Event Handler sfEventHandler Browser Browser Browser Throw Event HTTP Request JSON data Process Event Response on long-polling AJAX request Event bubbling through Browser Tab Browser Tab
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  • 16. … Even more Code Real Time Event Dispatcher Event Payload Channel
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