Phil Leggetter – Software Consultant

Latest Updates: Ajax RSS

• How does Google Real-Time Search work?

  Phil Leggetter 2:18 pm on December 12, 2009 | 0 Permalink | Reply
  Tags: Ajax, Google (4), JavaScript (11), Le Web, real-time (5), real-time web (29)

  On or around the 12th of December 2009 Google released a feature they are calling “real-time search”.

  Our real-time search enables you to discover breaking news the moment it’s happening, even if it’s not the popular news of the day, and even if you didn’t know about it beforehand.

  Although I’d still argue that we’re not seeing the real-time web with this solution I thought I’d go in to a bit of detail about how Google are achieving this HTTP polling solution.

  Summary

  • Google are consuming and indexing real-time data from multiple social networks
  • It’s not real-time HTTP PUSH yet, it’s HTTP PULL using a polling interval
  • The polling interval seems to vary but this needs to be confirmed.
  • The polling result returns an encoded JSON response containing the next request to be made and the HTML of any new results. These results are injected into the “Latest results” section of the page
  • The HTML returned is quite verbose and could be refined
  • 87% from a sample of 30 polled requests returned no new results meaning the request was a waste of resources

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• Which Rich Internet Application Technology will dominate?

  Phil Leggetter 1:34 am on November 7, 2009 | 4 Permalink | Reply
  Tags: Ajax, flash (2), Flex, JavaScript (11), PHP (2), real-time data (9), real-time web (29), RIA (2), silverlight (10)

  I’ve been a member of the RIA Developers Group on LinkedIn for a short while now and the other day Patrick Bay posted a link to an interesting article on Computer Weekly about the prominence of RIAs. A few comments were posted and then Patrick questioned which RIAs would “bubble to the top”.

  I think the UI revolution’s already here; now we see which ones bubble to the top!

  This got me thinking about the criteria that may determine which RIA technology would be most successful.

  I think there are a number of things that will determine which one will ultimately win, or at least become the dominant choice. At the moment I can think of three categories; Technology buy-in, Development environment and Data access capabilities and choice.
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