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Developing java Web Applications Using Google Apps RJUG 2011
Google App Engine for Java, launched in April 2009, is a platform as a service that allows users to develop and deploy web applications, initially free up to a million hits per month. The document highlights Vosao, an open-source content management system built on this platform, which utilizes familiar Java libraries and APIs for various functionalities. It outlines features like automatic scaling, persistent storage, and development tools, along with limitations and pricing details for enhanced services.
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Developing java Web Applications Using Google Apps RJUG 2011
- 1. Developing Java Web Applicationsusing Google Apps Engine
- 2. Introduced in April2009, Google Apps Engine for Java has come a long way, and seems ready for primetime. Google Apps Engine is a Platform as a Service cloud platform. Anyone can create and launch a GAE application at no charge, though resource utilization fees kick in when a site near the one million hits a month mark. Vosao (www.vosao.org) is an open source content management system developed from the ground up on Google Apps Engine for Java over the last 18 months. Vosao CMS uses many familiar Java libraries, like Velocity templates, popular web libraries, like JQuery, and popular mashup partners, like Picasa and Disqus.
- 3. Platform as aService Cloud Computing Savings - Real or Imaginery?
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- 10. IDEs, Toolkits, andFrameworks
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- 13. The application environment dynamicweb serving with full support for common web technologies persistent storage with queries, sorting and transactions automatic scaling and load balancing Google Account APIs for authenticating users and sending email a local development environment that simulates Google App Engine on your computer task queues for performing work outside of the scope of a web request scheduled tasks for triggering events
- 14. The sandbox Outgoing access via URL fetch or email services Incoming access via HTTP (or HTTPS) Store state via App Engine datastore, memcache. Respond to web request, queued task, scheduled task Return response data within 30 seconds Quotas and Limits Free 500MB of storage and 5 million page views a month. 10 applications per developer account.
- 15. Google Apps forBusiness Central Development Management Master account for Google Apps domain Service Level Agreement (99.9%) Pricing: $8 per user per month (up to $1000) Expanded Enterprise Features Hosted SQL SSL on your domain
- 16. The Java RuntimeEnvironment Java SE Runtime Environment (JRE) 6 platform Java Servlets JavaServer Pages (JSPs) Java Data Objects (JDO) Java Persistence API (JPA) interfaces JavaMail API Google APIs datastore memcache URL fetch mail images Google Accounts
- 17. Development Workflow App Enginesoftware development kit APIs and Libraries Simulator Upload tool Google Plugin for Eclipse create, test, and upload The Administration Console create, configure, version, logs, browse.
- 18. Vosao CMS forGAE Maven JUnit Velocity Templates JQuery / Superfish CKEditor reCaptcha Disqus Bliki Native application Direct calls to Google Data Services API Open source (LGPL) on code.google.com
- 28. Vosao CMS Challenges Windfalls Throttling Direct Support Backup Multisite Hi volume = Hi performance Facebook
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