Also has a complete set of common 3D stuff like shapes, simple objects, textures, particle emiters, cameras, lights, video in 3d, etc. The API is available on their web site.

An interesting example that came with the API, is the trends example. Originally it show the earth with a beam (like the sun) coming out form random places over the surface. I changed that beam to a particle emitter and put a sequence of images of the profile of a location aware (fake) social network. Basically, it shows now who is where in the world (watch the video).

Another great example is a GAME I’ve found, a kind of wonder boy style called Infinite journey form LargeAnimal.

That’s all for now, next time I will be posting more of my work. Appreciate any comment, Cheers!

Cheers!, and don’t be shy and write comments below!. *this time I will read them all, promise!.

I used to spend a couple of hours a week  in sites like eBay, Amazon or MercadoLibre trying to find interesting stuff, sharing content and reading comments. .. Did that last phrase sounded familiar to you?,  that’s the same thing we still do, more days and hours a week in such sites as Facebook, mySpace, etc, etc?. Apparently, instead of spending money in things we barely need, now we spend more time (= less money) reading stuff, comments / tweets, pols, playing online, etc. This slow decay could be associated to several factors like international crisis, inefficient search, new competitors (mercadolibre (AR), craiglist, olx, and so…), among others, but at the end the Real and simple reason is that is not fun anymore.

Over the years we changed the way we use and have fun with internet, and fastest connections allow us to get more content, streamings, and realtime communications. Finally facts of our daily life and history became reflected and published.

This is a rank that describes the average user behaviour for US on 2004.

And this is for the year 2006

As a verification to my point I mashed up a couple of trends graphics, showing a comparison about searched terms in ecommerce and social. (source: google trends)

- Argentina

Here, in Argentina,  Mercadolibre.com (local ebay and ex affiliated to them), was crushed by facebook before october 08.

- All regions

Same thing for all reagions 6 month before.

Leandro.

Technorati Profile

If you pay attentio to the chart in the lower part shows how “news about” twitter eclipsed any other thing on the web, at  least for a couple of days (the kutner effect).

Cheers!

Leandro Milmanda Perez

Something changed, we did? I guess…. the use of social network is here for good.

If you are interested in being part of social networks or want to build your,  own leave your comments or contact me.

by Leandro Milanda Perez.

As I twitted last week I am testing an early version of Google’s App Engine in Java flavor. If you never got the chance to try it, or you are just curious about it, I wrote a few tutorials about how to do regular things, including: java patters, servlets, data access, etc.

Use this command to anonymously check out the latest project source code:

Example 1 – Using DataStore nad JPA

I created a POJO calle SimplePojo and stored un DS using JPA. Below is a copy of the persistance.xml file I am using…

<?xml version="1.0" encoding="UTF-8" ?>
<persistence xmlns="http://java.sun.com/xml/ns/persistence"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xsi:schemaLocation="http://java.sun.com/xml/ns/persistence
        http://java.sun.com/xml/ns/persistence/persistence_1_0.xsd" version="1.0">

    <persistence-unit name="transactions-optional">
        <provider>org.datanucleus.store.appengine.jpa.DatastorePersistenceProvider</provider>
        <class>com.gae.tutorial.pojo.SimplePojo</class>
        <properties>
            <property name="datanucleus.NontransactionalRead" value="true"/>
            <property name="datanucleus.NontransactionalWrite" value="true"/>
            <property name="datanucleus.ConnectionURL" value="appengine"/>
        </properties>
    </persistence-unit>
</persistence>

Note the the hardcoded appengie value from the connection URL. Below the Poj file…

import javax.jdo.annotations.Column;

import javax.persistence.Entity;

import javax.persistence.GeneratedValue;

import javax.persistence.GenerationType;

import javax.persistence.Id;

import javax.persistence.NamedQueries;

import javax.persistence.NamedQuery;

import javax.persistence.Table;

@Entity

@Table(name = "simple_pojo")

@NamedQueries( {

    @NamedQuery(name = "getLast", query = "SELECT p FROM SimplePojo p ORDER BY p.id DESC")

})

public class SimplePojo {

    @Id

    @GeneratedValue(generator="generador",strategy=GenerationType.IDENTITY)

    @Column(name="ID")

    private Long id;

    @Column(name="VALOR")

    private String valor;

    public Long getId() {

        return id;

    }

    public void setId(Long id) {

        this.id = id;

    }

    public String getValor() {

        return valor;

    }

    public void setValor(String valor) {

        this.valor = valor;

    }

}

To fully understand this example I recommend you to checkout the SVN source repo and open it on eclipse. One important thing is that you need to install the App Engine SDK for Java and the eclipse plugins from App Engine too.

Also recommend you to get an account and start uusing it.!

Cheers!

Leandro.

Wow!, Ive just discovered this WP app for iPhone and it is amazing! Definitelly a Must Have!

( http://iphone.wordpress.org/)

]]> http://www.lemil.com.ar/blog/index.php/2009/04/wordpress-iphone/feed/ 4 http://www.lemil.com.ar/blog/index.php/2009/03/fault-tolerance-on-comodity-clusters/ http://www.lemil.com.ar/blog/index.php/2009/03/fault-tolerance-on-comodity-clusters/#comments Wed, 25 Mar 2009 11:48:18 +0000 lemil http://www.lemil.com.ar/blog/?p=53 Ive been doing some research on this latelly and I found some interesting videos I want to share with you…

This video demonstrates how it works on a real cluster, while disks are being disconnected.
Lemil.-

Hi!, today I m going to taught you about this new project called Socialsite.

What’s Socialsite ( https://socialsite.dev.java.net/)?

It is an open source software made by sun,  that implements 2 things, an Opensocial (www.opensocial.org) container that render your favorite OS gadgets (Google gadgets too), and also has it own social graph Db and gadgets to manage invitations, relationships, messaging, groups, profiles, like any other social network.

What techs power Social Networks ?

I’ll give you this link, its a pdf with a lot of new techs around social networking.

What am I doing with SS ?

I am doing a few things…

- I am doing implementations of SS for the first time. This software is new, Ive been working with this since very early releases.

- Make it production ready. We are looking forward open these implementations to massive audience (2 to 5 million users around the globe).

- Turn it Jboss ready!. Since this soft came from an open source project from Sun Microsystems, (they did it great!),  it was built using Sun’s Stack (Java, JPA, (Derby, yes Derby … MySql came later), and Glassfish). Since the company I am working for its using Jboss (I am personally a kind of fan of Jboss stack) as it main deployment server, I could not resist to make my own implementation of SS for that platform.

- J2EE deploymet, Ejb3 ready!.

- A lot of new features. I built a few new features like notifications i18n, job manager, support for images (previously stored on BLOBs), Notification services, Gmail integration services, etc. Also we (the team) cleaned all the reported bugs (and new ones ).

- Cluster ready!. I made also a few tunnings and scripts that allow you to run SS in HA clusters, and setted up distribued caches, farming services, nodes, etc.

- Oracle 10g ready!.

- We also did a lot of stuff just for this impl, but those details I cannot tell. ( may be in a later post

I will continue posting some news about this project and related, …to keep in touch, any comments, below.

Cheers!

Lemil.-