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Esfand S

VMware: The Console: Google and VMware's "Open PaaS" Strategy - 0 views

blogs.vmware.com/...mwares-open-paas-strategy.html

appengine roo

shared by Esfand S on 28 Sep 10 - Cached
  • step forward towards our goal of making Spring the best framework for developing enterprise-class cloud applications. Today we announced a partnership with Google to make Spring even better and to integrate it into the new Google AppEngine public cloud offering.
  • we realized that we have similar visions of the cloud
  • Our shared vision is to make it easy to build, run, and manage applications for the cloud, and to do so in a way that makes the applications portable across clouds. The rich applications should be able to run in an enterprise's private cloud, on Google's AppEngine, or on other public clouds committed to similar openness. Thus started an ambitious effort resulting in today's demonstrations at Google I/O and the downloads available here.
  • ...4 more annotations...
  • For VMware, this Google partnership is a key step in our "Open PaaS" strategy that I blogged about last month. Specifically, it moves the give-developers-choice strategy forward on 3 important axes:
  • 1. Choice of Clouds: Private or Public, VMware and non-VMware
  • 2. Choice of Add-on Services
  • 3. Choice of Which Devices Access your Application
  • Esfand S on 28 Sep 10
     
    step forward towards our goal of making Spring the best framework for developing enterprise-class cloud applications. Today we announced a partnership with Google to make Spring even better and to integrate it into the new Google AppEngine public cloud offering.
Esfand S

FAQ - Google Plugin for Eclipse - Google Code - 0 views

code.google.com/...faq.html

appengine gwt eclipse maven plugin

shared by Esfand S on 28 Sep 10 - Cached
  • Esfand S on 28 Sep 10
     
    "How do I use the plugin with a GWT project built with Maven? Although GWT projects typically use the Ant build system, it is also possible to use GWT and the Google Plugin for Eclipse with projects built with Maven. We recommend using Eclipse for Java EE when developing Maven projects, because it allows you to modify your source code and resources during a debugging session and have the changes automatically reflected in your running application. To enable this behavior, you'll need to convert your Maven project to an Eclipse Dynamic Web Project: 1. Open the New Dynamic Web Project wizard. Set the Project name and any applicable options, then click Next. 2. On the Java page, remove the default source folder (src) and add your Maven source folders (e.g. src/main/java, src/main/resources, and src/test/java). Click Next. 3. On the Web Module page, set the Content directory to src/main/webapp and click Finish. 4. Import your project's source code and resources into the newly-generated project, and set up your build path. 5. Finally, follow the steps in the GWT + Eclipse for Java EE FAQ to enable GWT for the project and create a Web Application launch configuration."
Esfand S

Effectively Parallelizing Fetches (with pictures, yay!) - Google App Engine | Google Gr... - 0 views

groups.google.com/...70cd9165b6c123a4

appengine datastore top

shared by Esfand S on 28 Sep 10 - Cached
  • As I understand it, the process of performing a single fetch (call to get())  from the dastastore using a key basically involves finding the host housing the entity, opening a socket, fetching the data, and then cleaning up the connection.  So to fetch something like 30 entities from the datastore, you're repeating the process 30 times over in serial, each time incurring whatever overhead is involved.  I also read that if you perform bulk fetches, (ie passing multiple keys at once) you can eliminate a great deal of that overhead.  In one of the videos I watched from Google I/0 2009, the presenter (whose name I forget - d'oh) said that performing a bulk fetch actually performs the fetches in parallel from the data store and you shoudl see requests noticeably faster.
Esfand S

Free Java hosting with the Google App Engine « JTeam Blog / JTeam: Enterprise... - 0 views

blog.jteam.nl/...ing-with-the-google-app-engine

taskqueue appengine top

shared by Esfand S on 28 Sep 10 - Cached
  • Cron jobs / task queues Instead of using a framework like Quartz to schedule jobs, Google App Engine takes care of executing jobs for you. You simply enter a cron-like expression and a URL to call and your job is configured. You also have a task queue at your disposal. Your application code can add tasks to a task queue which will be executed later in the future, asynchronously. An example use case is that you don’t want clients to wait for an email to be sent before he sees the next page. Instead you can put the email task on the task queue and the email will be sent asynchronously.
  • When an email is received Google App Engine does a post on an URL in your application you configured. The HTTP body of the POST request contains the exact mime message as it was received by Google. To parse this mime message you can use the MimeMessage class provided by the JDK.
Esfand S

Parallel Asynchronous Datastore Commands with Twig 1.0 - Google App Engine for Java | G... - 1 views

groups.google.com/...a26aebbe4d4cd0b2

gae datastore library twig lowlevel appengine

shared by Esfand S on 28 Sep 10 - Cached
  •  Twig is an alternative to the standard   persistence interfaces JDO and JPA, specifically designed to make the   most of the underlying datastore's unique features.
  • Twig is the only interface to support direct unowned relationships so   your code is not dependent on low-level datastore classes.  It is the   only interface to support OR queries by merging together multiple   queries, sorting them and filtering out duplicates at the lowest level   for performance.
  • Async datastore calls are not yet part of the low-level API.  Twig   uses the underlying Protocol Buffer layer classes to call   ApiProxy.makeAsyncCall() instead of makeSyncCall.  All the code is   open source so you can check out how its done.
Esfand S

brad's life - Perl on App Engine - 0 views

brad.livejournal.com/2388824.html

gae datastore tip top appengine

shared by Esfand S on 28 Sep 10 - Cached
  • we can build the start of an open source App Engine server clone that's suitable for many purposes:  initially just for regression testing & local development (like the "dev_appserver" that comes with the App Engine Python SDK), but perhaps in the future (once Hypertable/Hbase/etc are ready) a full stack to give to ISPs to let them run App Engine apps on their own.
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