Bruno Borges - Just Blogging

Líderes de JUG de Latinoamérica, Oracle quiere ponerse en contacto

2013-05-10T14:08:00.000-03:00

Hola Comunidad Java de América Latina! Dentro de un par de meses, voy a empezar una gira por América Latina para llevar a usted las nuevas características de la plataforma Java EE 7.

Esta gira comenzará en julio en Brasil, en el TDC - The Developers Conference, en São Paulo. Luego, después de eso, voy a empezar mi viaje a través de varios países. Pero para ayudar a terminar mi agenda, necesito tu ayuda!

Todo lo que necesitas hacer es compartir este artículo con alguien que usted conoce o en su red social. , y por supuesto, proporcionar la información que pido aquí. Esto me ayudará a ponerme en contacto con los líderes JUG locales en su país, y planear las reuniones.s.

Su ayuda es muy apreciada!

¡Gracias!

2013-05-08T10:06:00.002-03:00

WebSocket is the new kid on the block when you think about Web Development these days. And it is expected that you want to integrate it with whatever is available in your hands. Java EE 7 is coming with cool things beyond this, for example JMS 2.0. And then you wonder: how can I send asynchronous messages to all WebSocket sessions connected to my website? Server push; no polling: for real!

The answer is quite simple: CDI. Also know as the Java EE magic glue. CDI enables a developer to build inter-communication between, apparently, distinct parts of your application. Let's go through all the steps to enable your WebSocket application to send and receive messages through JMS.

1 - Creating the WebSocket Server Endpoint

First we need to build the WebSocket server endpoint that will receive messages from clients, and to also notify clients asynchronously with a server push, with incoming JMS message payloads:


@Named

@ServerEndpoint("/websocket")
public class WebSocketEndpoint implements Serializable {
    // this object will hold all WebSocket sessions connected to this WebSocket 
    // server endpoint (per JVM)
    private static final Set<Session> sessions = 
                           Collections.synchronizedSet(new HashSet<Session>());

Now you must also add three key methods to this WebSocket:


@OnOpen public void onOpen(final Session session) { sessions.add(session); }
@OnMessage public void onMessage(final String message, final Session client) { ... }
@OnClose public void onClose(final Session session) { sessions.remove(session); }

Notice that on onOpen and onClose, we manage all user sessions connected to this endpoint. We will see later howsessions will be used inside onMessage. For now, let's create a SessionBean to send messages to a JMS Queue.

2 - Creating the SessionBean to send JMS messages

As we cannot create JMS objects directly inside the WebSocket endpoint due to restrictions defined both in the WebSocket and JMS specifications, we must create a SessionBean so we can forward incoming WebSocket messages to a JMS queue. Create a class named QueueSenderSessionBean as it follows:


@Named

@LocalBean

@Stateless
public class QueueSenderSessionBean { ... }

This SessionBean is @Stateless, as well part of the CDI context (@Named), and as it does not have an interface, it is a @LocalBean. Now, let's add a business method to it, called sendMessage:


public void sendMessage(String message) { ... }

Quite straight-forward, isn't? One of the great things about JMS 2.0 is its simplicity to send messages to a destination. To do that, we need to inject two objects:


@Resource(mappedName = "jms/myQueue")

private Queue myQueue;

@Inject
private JMSContext jmsContext;

JMSContext is one of the new classes added to JMS API, and is documented here. It encapsulates a Connection and aSession, and makes use of a default ConnectionFactory, now a required resource to be provided by all Java EE 7 certified application servers. Next, all you need is to add the logic to the previously added method:

jmsContext.createProducer().send(myQueue, message);

And you are done with the SessionBean. Next we will add some glue between the SessionBean and the WebSocket to send messages to the JMS destination.

3 - Forwarding an incoming WebSocket message to a JMS destination

This is quite simple. All you need to do is to inject the SessionBean into your WebSocket, and call thesendMessage method inside onMessage of your endpoint. Let's start with the injection first, but due to a bug, we must do constructor injection. Open your WebSocket server endpoint class WebSocketEndpoint, and add the following field:

private QueueSenderSessionBean senderBean;

Now add the following constructor to it:
@Inject public WebSocketEndpoint(QueueSenderSessionBean sb) { this.senderBean = sb; }

Next step is to simply call the method inside onMessage:
senderBean.sendMessage(message);

We have finished the first part of this application. With this code, you are now able to send a message from a WebSocket client, to a JMS destination. Next, we will do the opposite. Let's push some data from a JMS queue to all WebSocket clients!

4 - Listening to a JMS Destination with a MessageDriven Bean

Funny fact: some developers have not realized yet, but the MessageDriven annotation is not specified by the JMS API. Instead, it is part of the EJB specification, and it can be used not only for JMS, but for many other things. David Blevins from the awesome Apache TomEE realized that, and proposed a small change to the EJB spec, where resource adapters required connectors to provide a messagelistener-type. His proposal though, suggests that you should be able to use an MDB to listen to different things, and the listener interface should be optional. One example is to listen to Telnet commands. Pretty awesome! But let's focus on our use case here, which is specific to JMS.

Now that we can publish messages into a Queue destination from a WebSocket client, we must process them to later forward to somewhere else. Let's start coding our JMS MDB (remember, not all MDBs are implicitly JMS-related!), implementing the MessageListener interface, required by JMS ResourceAdapter connectors:

@Named @MessageDriven(mappedName = "jms/myQueue") public class WebSocketMDB implements MessageListener {
@Overridepublic void onMessage(Message msg) { ... }
}

This is the basic code to any JMS MDB. Now let's do some magic...

5 - Firing CDI events with the JMS Message payload

Remember when I told that we cannot listen to JMS destinations directly from the WebSocket server endpoint due to specification restrictions? Well. We can actually, but using a different technique. If you haven't heard about CDI Events, you should read about it before continuing this tutorial. Done? Ok, let's go. First thing we need is an Event qualifier. Create the WSJMSMessage annotation inside your project:

@Qualifier @Retention(RetentionPolicy.RUNTIME) @Target({ElementType.METHOD, ElementType.FIELD, ElementType.PARAMETER, ElementType.TYPE}) public @interface WSJMSMessage {}

With a defined qualifier, CDI will be able to connect the firing event with the observer object. Go back to the WebSocketMDB and add an Event dispatcher to it, with the qualifier we created above:


    @Inject

    @WSJMSMessage
    Event<Message> jmsEvent;

Now let's add the logic to the onMessage method:

jmsEvent.fire(msg);

6 - Listening to CDI events within the WebSocket server endpoint

This is the last server-side part of this article, then next you will see how to code Javascript on the client-side. Let's listen to CDI events fired by the MDB, with the Message payload. Open again your WebSocketEndpoint class, and add the following method to it:


    public void onJMSMessage(@Observes @WSJMSMessage Message msg) {

        try {

            for (Session s : sessions) {

                s.getBasicRemote().sendText("message from JMS: " + msg.getBody(String.class));

            }

        } catch (IOException | JMSException ex) {

            Logger.getLogger(WebSocketEndpoint.class.getName()).log(Level.SEVERE, null, ex);

        }
    }

Observe the @Observes and the qualifier @WSJMSMessage we defined previously. This is what tells CDI to listen to the fired events by the MDB.

7 - Client-side Javascript to connect with the WebSocket server endpoint

This has been floating around the Internet for a while as it is not Java nor Java EE specific, but anyway it is basically this:

// note the final path is the same defined inside WebSocketEndpoint class at @ServerEndpoint websocketSession = new WebSocket('ws://' + document.location.host + '/your-app-context-root/websocket');

Here is the final Javascript used by this example, as well the HTML interface.

Conclusion

I hope you have found this article useful to begin your development with Java EE 7, and what are the possibilities of integrating CDI, WebSockets, JMS, and EJB. These are the main points about this article:

ability to asynchronously communicate with WebSocket clients (although you can also usesession.getAsyncRemote() to send messages asynchronously)
ability to do a server push to WebSocket clients at any point in your application
ability to scale server-pushed communication to WebSocket client sessions across a cluster using JMS Topics
This is perhaps one of the most interesting thing about this setup. If you use a Topic instead of a Queue, you will be able to push data to all WebSocket sessions connected to your application across a cluster. There's a know limit of roughly 64k client sessions per web server, and in this example we use a static synchronized Set to hold a reference to them. Imagine now a cluster. We change this to a Topic clustered subscriber, and we are able to scale up server pushed data :-)

The source code of this project is available at my GitHub repository javaee7-jms-websocket-example. I hope you liked the article!

Originally posted here

What's new in Java EE 7 at JUDCon Brazil 2013

2013-05-08T09:57:00.000-03:00

This weekend I talked about Java EE 7 at JUDCon Brazil 2013, the session "What's new in Java EE 7? From HTML5 to JMS 2.0". What a great honour to be at JBoss Users and Developers Conference to share with attendees the great work that Oracle, Red Hat, and many others are doing for this platform. Room was packed, with people standing, and so much interest to hear all the cool stuff to come, such as WebSockets, JMS, JAX-RS, JSF and even more. To add some value to this talk, and as I'm a fan of Game of Thrones, I thought that a few images would fit right at this talk :-)

Slides here!

What's new in Java EE 7? From HTML5 to JMS 2.0 from Bruno Borges

Originally posted here

Coup d'état Brazil 2013: how to ruin a democracy

2013-04-24T23:38:00.001-03:00

The year of 2013 will be remembered in the history of Brazil as the beginning of a Democracy Regression: a coup d'état.

Back in January, the outcome of the "Mensalão" Scandal called attention of the media, specially The Economist with a great article titled Brazil's zombie polititcans: Unstoppable?.

"In total, a third of Brazil’s lawmakers have either been convicted or are being investigated for crimes ranging from vote-buying to theft to slave-holding."

The article mentions cases where politicians like José Genoino, Francisco Tenório, Renan Calheiros, and others, even though found guilty of bribery and some under investigation of murder, replaced other congressmen who stepepd down to become mayors. In the case of Mr. Calheiros, he became the President of Senate, on February 1st. Some of these politicians were found guilty after judged by STF (Superior Tribunal Federal - Supreme Court).

Now today, April 24th of 2013, José Genoino who is, ironically, a member of CCJ (Comissão de Constituição e Justiça - Judiciary and Constitution Committee), has approved a constitution ammendment that intends to submit to Congress court decisions declaring laws unconstitutional. Also it will increase the minimum votes of judges in decisions, from 6 to 9, lowering of course, the power of supreme court.

Basically, deputies and senators who will decide, ultimately, whether or not it is worth what they themselves approved. In such cases, judges are themselves - at the expense of individual rights and guarantees of citizens, whose guarantee is Justice.

The amendment proposes more atrocities, including:

Go up to four-fifths quorum for the Supreme declare a law unconstitutional.
Prohibits ministers Supreme grant injunctions in an injunction to suspend - until the final judgment by the Court - the effectiveness of constitutional amendments.
Determines the binding precedents of jurisprudence (edited by STF mechanism that must be followed by all instances of the judiciary on the basis of decisions adopted by repeatedly cutting - mechanism to expedite justice)) will also be submitted to the scrutiny of Congress before enter into force.

PT: Partido dos Trabalhadores / Workes Party

We must not forget PT, led by Lula (Luiz Inacio Lula da Silva), where activelly supported all politicians involved in the Mensalão Scandal, and that also suppports this ammendment. The author is also a member of PT, Congressman Nazareno Fontenele, a ghost never seen before, probably a disposable politician to be used in this move, and someone who will certainly be blamed and forgotten, for such an absurd proposal.

This is with no doubt, a House of Cards, and a tentative coup of Brazil's Democracy.

Referenced article - source

Portuguese: "QUE ABSURDO! A Câmara aprovou hoje um golpe de Estado! Nada menos do que isso!"

English: "WHAT NONSENSE! The House today approved a coup!No less than that!"

Redeploy de aplicações em produção no WebLogic

2013-04-24T02:54:00.002-03:00

O WebLogic oferece uma função que permite você atualizar aplicações em ambiente de produção, com zero-downtime. Funciona assim: usuários que estão conectados na sua aplicação, continuarão conectados na versão antiga, mas quem se conectar depois do deploy da nova versão, será direcionado para o novo deploy. Assim, nenhum usuário sofrerá com um erro 404 (conteúdo inexistente), ou será prejudicado no meio de um processo (por exemplo, consultas ou relatórios). Isso permite roll-out de novas versões em horário comercial, sem necessidade de uma janela de atualização, para por exemplo, corrigir falhas no sistema que afetam somente uma parte da aplicação.

Agora para que isso seja possível, é necessário configurar o que chamamos de Application Version Identifier. Esta informação pode ser passada de duas formas:

Por linha de comando:

java weblogic.Deployer -adminurl http://localhost:7001 -user weblogic
     -password weblogic -deploy -name myTestDeployment 
     -source /myDeployments/myApplication/91Beta
     -targets myCluster -stage -appversion .91Beta

Configurado no MANIFEST.MF do pacote (EAR/WAR) da aplicação

Manifest-Version: 1.0
     Created-By: 1.4.1_05-b01 (Sun Microsystems Inc.)
     Weblogic-Application-Version: v920.beta

Apache MavenSe você utiliza Maven para criar o pacote da aplicação, basta configurar no plugin (war ou ear), o parâmetro do Manifest:

<plugin>
  <artifactId>maven-ear-plugin</artifactId>
  <configuration>
    <archive>
      <manifestEntries>
        <WebLogic-Application-Version>${project.version}</WebLogic-Application-Version>
      </manifestEntries>
    </archive>
  ... 
</plugin>

Deu erro na versão nova? Rollback!Se aconteceu alguma coisa com a versão nova, é só reativar a versão antiga para que novos usuários sejam direcionados a ela. Em seguida remova a versão nova.

Removendo a versão antigaDepois de ter a versão nova no ar, o WebLogic vai monitorar as sessões ainda abertas na versão antiga. Quando todas as sessões finalizarem (via timeout), a aplicação irá para o status retired. Caso isso demore para acontecer devido a sessões longas (usuário que esqueceu o navegador aberto em uma tela com função auto-refresh), você pode forçar esta etapa pelo console administrativo.

Se precisar de maiores informações, consulte a documentação do WebLogic 12c.

Originalmente publicado aqui

What's new in Java EE 7 at JUDCon Brazil 2013

2013-04-22T11:24:00.001-03:00

Slides here!

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What's new in Java EE 7? From HTML5 to JMS 2.0 from Bruno Borges

via Java and everything https://blogs.oracle.com/brunoborges/entry/what_s_new_in_java

OHS and APK files

2013-03-26T15:00:00.001-03:00

In case you are trying to provide users a download link to an APK file hosted in your server, remember to add the MIME Type to your OHS (Oracle HTTP Server) configuration. The steps to add a MIME Type are well documented, and all you need to do is to specify the correcty definition:

(step-by-step on OHS 11g)
4.4.2.1.1 Using Fusion Middleware Control to Configure MIME Types

To configure a MIME type using Fusion Middleware Control, do the following:

Select Administration from the Oracle HTTP Server menu.
Select MIME Configuration from the Administration menu. The MIME configuration page appears.
Click Add Row in MIME Configuration region. A new, blank row is added to the list.
Enter the MIME type. ---> application/vnd.android.package-archive
Enter the file extension.
Review the settings. If the settings are correct, click Apply to apply the changes. If the settings are incorrect, or you decide to not apply the changes, click Revert to return to the original settings.
Restart Oracle HTTP Server, as described in Section 4.1.4.

APK MIME Type

application/vnd.android.package-archive

That's all!

Originally posted on my Oracle Blog

Encontro SouJava na Oracle (JMS e Cache Distribuido)

2013-02-22T14:08:00.001-03:00

No dia 21 de Fevereiro estreamos o novo escritório da Oracle abrindo as portas para o grupo de usuários do SouJava. Com a presença do Bruno Souza, Ricardo Ferreira, Edgar Silva, Vinicius Senger, Mauricio Leal e muitos outros, tivemos a participação ao todo de 26 pessoas.

Durante a reunião, apresentei As Novidades do JMS 2.0, parte importante do Java EE 7 e que teve votação do Public Review no dia 19/02. O SouJava votou a favor, não só pela qualidade mas também pela transparência da especificação.

A outra apresentação foi do Ricardo Ferreira, falando sobre Processamento de Dados em Memória usando Elastic Data Grid (In-Memory Computing), que demonstrou a importância do uso de cache distribuído em arquiteturas altamente escaláveis, com o Oracle Coherence.

No final, os participantes conheceram o novo escritório da Oracle e ainda foram muito bem recebidos com muita pizza. Confira as fotos do evento!

BlocoDroid Premium 2013

2013-01-28T16:10:00.002-02:00

Viu que lancei a versão 2013 do BlocoDroid? O melhor aplicativo do gênero para acompanhar os Blocos de Rua do Rio de Janeiro?

Várias pessoas já adquiriram o BlocoDroid Premium. Custa só R$ 2,50, o preço de uma cerveja na rua. Instale o BlocoDroid, veja onde tem bloco no Rio de Janeiro com o melhor aplicativo do gênero, e ajude um amigo a ficar bêbado neste Carnaval... eu!

http://apps.blocosderua.com.br/android

BlocoDroid 2013: Carnaval e Blocos de Rua

2013-01-28T04:31:00.002-02:00

Atualizei o BlocoDroid para a programação oficial do Carnaval de Rua 2013 da Prefeitura do Rio de Janeiro. O que vocês acham? Tem forma melhor para acompanhar os Blocos de Rua? :-)

Agora as funções mais legais são do pacote Premium. A idéia é desenvolver para 2014 um serviço completo, para mais cidades.

Algumas screenshots

PS: tem pra iPhone também :-)

Reasons to why I'm reconsidering JSF

2013-01-07T18:24:00.003-02:00

In December 2010, I wrote a blog post entitled "Top 10 reasons why I don't like JSF", and I would guess that 50% agreed with me, the other 50% did not. No surprise, it's like religion.

I always liked to research products, projects, frameworks and Java technologies in general, but specially in the Web Development area. In 2001, I started coding JSP and Servlets, just a few months after I learned how to program in Java and do OOP . Did my first web application connecting to an Oracle DB with pure JDBC. Learned from the basics, on my own and succeeded.

Later I got a new job, thanks to my experience in Web Development, but my employer was using Apache Struts. I knew about that upfront so I studied it before my interview. Got hired. Struts back then, wasn't that hard for someone already with knowledge about HTTP request/response architecture and the Servlet specification. Then came JSF 1.0. I didn't like it. Complex. Way too much. Struts was much simplier. JSF 1.1? Same thing. Small improvements only.

So I moved to something different. In 2007, I heard about Apache Wicket. Then I became an independent evangelist. I gave several talks in Brazil, for years, spreading my word about Wicket, at every conference my talk was approved. I even created a community, Wicket em Português, for Portuguese speakers. I also offered an online training for it. I was offered a job proposal just because I knew Wicket, in Rio de Janeiro in 2010.

Now, the reason I told you all this is to show you that I'm used to choose what works best for me, at a certain time. I do change my opinion over things. It's something like, readaptation. We all should readapt. Every time. Just to demonstrate: I was born in an island, Florianópolis, then I moved to São Paulo, later I moved to Rio de Janeiro. Now I'm back to São Paulo. My accent changed, thanks both because I like to talk like others to make jokes, but also to feel like a local. By the way, I'm a CouchSurfer. I enjoy traveling and being with, and like, locals.

Now let's get to the real thing: Java Server Faces 2.2. The version that is leading me to readaption.

Before start, I should point that I now work at Oracle and I advocate in favor of Java EE. I'm friend of Arun Gupta, Reza Rahman, Ed Burns and several other folks who are Java EE advocates, also some who are not Oracle employees.

When I wrote about the things I didn't like in JSF, some were technical, others were related to its ecosystem and the market. Things that change, that evolve. And they did.

1. Pure HTML
I talked to Ed Burns several times about the way we design pages in JSF, with tag libraries. At the first opportunity, years before joining Oracle, I told him: "Hey, why don't you make it look like Wicket?". Facelets came at some point between that day and later. Now, in JSF 2.2 it's possible to define a page using pure HTML, letting the browser do the preview without much hassle. Something I enjoy a lot in Wicket and other frameworks. Something I talked a lot at my presentations. So here it is, the community (represented by myself and many others), influencing change in an specification.

2. Implementations
I think that relying on whatever is running on your application server (Mojarra or MyFaces) is better. If you are considering JSF, you should choose a Java EE certificated app server and just use whatever comes within. Life will be much easier this way.

3. Creating custom components
In JSF 1.x, creating a custom component was more difficult than creating YAJWF. Now is a one-file-in-a-directory only. It's very easy to compose a custom, reusable component. This post will give you an idea.

4. Documentation
I used to complain about JSF documentation (fragmentation). Apparently, documentation got a lot better. The Java EE 6 homepage at Oracle offers hundreds of pages of documentation. Of course you can always look somewhere else for docs, but I would go to these first, as these are the "official" docs, much like when you go to SpringSource for Spring MVC documentation.

5. Tooling Support
I've been playing with NetBeans for quite a while and it is a good IDE for Web development. But if you are really into HTML5, then you will like JSF inside NetBeans. The IDE now provides a feature, from Project Easel, that integrates with your browser and provides debugging and many other features. Good for someone doing HTML5 development with JSF 2.2 and JAX-RS. By the way, there is some work going on, according to Ed Burns, on integrating JSF 2.2 and JAX-RS 2.0. So let's keep an eye on that.

6. Other new features
Some otther new features are about to come as well. Here are some tickets in JIRA that are being prioritized, like:

Loading Facelets through ResourceLoader
Ajax File Upload component
Cross Site Request Forgery Protection
Faces flows

99. Java EE advocate
I always was an advocate of the platform though never of all of its specs. And one of the reasons I took the job at Oracle as Product Manager, was because I have been working with Java EE since... ever. Not with JSF specifically I confess, not always, but I was already considering it since it turned 2.0. And facing the challenges of teaching developers to do non-Java EE development the right way, I had been thinking of adopting it fully, simply because it's easier to find skilled developers of the platform. This is a great deal for employers when their time-to-market is important.

Still... some gaps
If there's something that I still think that happens, is the compatibility between implementations. The TCK does not cover everything, because of gaps in the spec. So it's not guaranteed to say that a project running with PrimeFaces or RichFaces on top of Mojarra will run just fine if you move it to an application server running MyFaces. But this is something that can be fixed, and I'm sure it's being addressed by all parties (JSF EG, myfaces-devs and mojarra-devs).

Also, it would be nice to see more things like server-side UI programming, as it happens with Apache Wicket. Maybe even having support for different languages? It would be nice to have the server-side UI logic in Javascript, for example. :-)

Java EE 7 and the future
Non standard frameworks are good for innovation. Some may not agree, but JCP and standards are not that slow anymore. Of course they still are if you compare to stuff like Node.js, Wicket, Liftweb, Play!, Rails and other great alternatives for web development. But look at JSF 2.2 and Java EE 7. We are about to see the new version of Java EE about the same time as HTML5 comes to a final version. In old days, it could be like having Java EE supporting HTML5 in... what? 2018? Not anymore.

Also, if you want to use JSF with CDI, you should really consider an application server with at least Java EE Web Profile, like Apache TomEE. Oracle GlassFish and JBoss are another option if you are looking for open source solutions. The reason to choose a compliant Java EE app server is that they already offer (and test) these kinds of integrations (e.g. JSF with CDI).

So yes, I look forward to Java EE Platform 7.0, not only as an advocate, but specially as a developer. I'm seeing its value, its improvements, and its readaption to the market.

Openness to Change
Let's not forget, the Adopt-a-JSR program offers the community, a great opportunity to participate, speed up, and improve even more the platform and all of its specifications. So here's your chance to ... why not, fill the gaps? :-)

Cheers!

WebFX: Running JavaFX as web page

2013-01-04T13:30:00.005-02:00

This weekend I wanted to learn JavaFX, so I decided to code an idea I had a few years ago when I first saw JavaFX Script. So I started coding a web browser that runs HTML with the awesome, HTML5 supported WebView. But this browser also offers one extra feature: it loads FXML files as if they were HTML. So instead of defining your web page with HTML and running with WebKit, you can define a web page with FXML+CSS+JS and run as a JavaFX application.

The project is called WebFX and already has a prototype on GitHub. I also uploaded a video on YouTubedemonstrating the idea.

What do you think about using JavaFX in the future for web pages, instead of HTML?

https://blogs.oracle.com/brunoborges/entry/webfx_running_javafx_as_web

7 reasons you had to be at JavaOne Latin America 2012

2013-01-04T13:30:00.001-02:00

Yesterday was 12/12/12, and everybody went crazy on Twitter with cool memes like this one. And maybe you are now wondering why I mentioned 7 (seven) on the blog title. Because I want to play numbers? Yes! Today is 7 days after JavaOne Latin America 2012 is over (... and I had to figure out an excuse for taking so long to blog about it...).

So unless you were at JavaOne Latin America this year, here are 7 things you missed:

OTN Lounge mini-theatre
There was a mini-theatre holding several lightning talks. We had people from SouJava JUG, GoJava JUG, Globalcode, and several other Java gurus and companies running demos, talks, and even more. For example, @drspockbr talked about the ScrumToys project, that demonstrates the power of JSF.
Hands On Lab for JAX-RS and WebSockets
One of the cool things to do during JavaOne is to come to these Hands On labs and really do something using new technologies with the help of experts. This one in particular, was covered by me, Arun Gupta, and Reza Rahman. The HOL had more people than laptops (and we had 48 laptops!) interested on understanding and learning about the new stuff that is coming within Java EE 7. Things like JAX-RS, Server-sent Events and WebSockets. Hey, if you want to try this HOL by yourself, it is available on Github, so go for it! If you have questions, just let me know!
Java Community KeynoteThis keynote presented a lot of cool things like startups using Java in their projects, the Duke Awards, SouJava winning the JCP Outstanding Award, the Java Band, and even more! It was really a space where the Java community could present what they are doing and what they want to do. There's a lot of interest on the Adopt-a-JSR program and the Adopt-OpenJDK. There's also an Adopt-a-JavaEE-JSRprogram! Take a look if you want to participate and Make the Future Java.
Java EE (JMS, JAX-RS) sessions from Reza Rahman, the HeavyMetal guy
Reza is a well know professional and Java EE enthusiast from the communitty who just joined Oracle this year. His sessions were very well attended, perhaps because of a high interest on the new things coming to Java EE 7 like JMS 2.0 and JAX-RS 2.0. If you want to look at what he did at this JavaOne edition, read his blog post. By the way, if you like Java and heavymetal, you should follow him on Twitter as well! :-)
Java EE (WebSockets, HTML5) sessions from Arun Gupta, the GlassFish guy
If you don't know Arun Gupta, no worries. You will have time to know about him while you read his Java EE 6 Pocket Guide. Arun has been evangelizing Java EE for a long time, and is now spreading his word about the new upcoming version Java EE 7. He gave one talk about HTML5 Productivity on the Java EE 7 platform, and another one on building web apps with WebSockets. Pretty neat! Arun blogged about JavaOne Latin America as well. Read it here.
Java Embedded and JavaFX
If there are two things that are really trending in the Java World right now besides Java EE 7, certainly they are JavaFX and Java Embedded. There were 14 talks covering Java Embedded, from Java Cards to Raspberry.pi, from Java ME to Java on your TV with Ginga-J. The Internet of Things is becoming true, and Java is the only platform today that can connect it all in an standardized and concise way. JavaFX gained a lot of attention too. There were 8 sessions covering what the platform has to offer in terms of Rich User Experience. The JavaFX Scene Builder is an awesome tool to start playing designing an UI, and coding for JavaFX is like coding Swing with 8 hands, one holding your coffee cup. You can achieve a lot, with your two hands (unless, you really have 8 hands, then you can achieve 4 times more :-). If you want to read more about JavaFX, go to Stephen Chin's blog post.
GlassFish and Friends Party, 1st edition at JavaOne Lating America
This is probably the thing that I'm most proud. We brought to Brasil the tradition of holding a happy hour for all GlassFish, Java EE friends. This party started almost 7 years ago in San Francisco, and it was about time to bring it to Brazil! The party happened on Tuesday night, right after JavaOne General Keynote, at the Tribeca Pub. We had about 80 attendees and met a lot of Java EE developers there! People from JUGs, Oracle, Locaweb and Red Hat showed up too, including some execs from Oracle that didn't resist and could not miss a party like this one.

Lots of caipirinhas, beer and food to everyone, some cool music... even The Fish walking around the party with Juggy!

You can see more photos from the party on an album I shared with the recently created GlassFish Brasil community on Google+ here (but you may be more interested in joining the GlassFish english community). There's also more pictures that Arun took and shared on this link.

So now you may want to consider coming to Brazil next year! Java EE 7 is on its way, and Brazil is happily and patiently waiting for it, with a lot of enthusiasm.

By the way, GlassFish and Java EE 6 just celebrated a Happy Birthday!

https://blogs.oracle.com/brunoborges/entry/7_reasons_you_had_to

GlassFish and Friends Party, 1st Edition at JavaOne Brasil

2013-01-04T13:29:00.004-02:00

Estamos muito contentes em anunciar que iremos realizar a primeira edição da tradicional GlassFish and Friends Party neste JavaOne in Brasil.
O problema é que os ingressos já esgotaram!

Então decidimos realizar um concurso para dar mais 5 ingressos para a comunidade! Aqui estão as regras:

Escreva um post no seu blog sobre o GlassFish
Poste no Twitter o título e o link do seu post com a hashtag #GlassFish para que possamos saber do seu post
Os 5 melhores posts serão selecionados e anunciados aqui no dia 3 de Dezembro às 19:00 (GMT-3)
Selecionaremos um post de cada autor
Cada autor receberá um ingresso para a festa

Agora corre para a sua plataforma de blog e escreva sobre o GlassFish!

------------- en_US ---------------

We are very happy to announce that we are going to host the first edition of the traditional GlassFish and Friends Party at this JavaOne in Brasil.

The problem is: tickets are already SOLD OUT!

So we decided to run a simple contest to give away 5 more tickets to the community! Here are the rules:

Blog about GlassFish
Tweet the title and link of your blog post with the hashtag #GlassFish so we can know about your blog post
The best 5 blog posts will be selected and announced here on December 3th at 7pm (GMT-3)
We will select one blog post per author
Each author will get one ticket

Now run to your blog platform and write about GlassFish!

https://blogs.oracle.com/brunoborges/entry/glassfish_and_friends_party_1st

First steps with Oracle ADF Mobile for iOS and Android

2013-01-04T13:29:00.001-02:00

Oracle announced recently its new Mobile development platform, called Oracle ADF Mobile. With it, you can build truly Java applications, deploy and run real Java code on both Android and iOS with its self-contained Java runtime.

It also comes with PhoneGap. which allows you to use any feature your phone offers, like sensors and camera. It's probably the most complete solution for mobile development out there, simply because with Oracle ADF Mobile, you can write Native, Hybrid or Web applications for your smartphone and tablet.

Do you want to take a quick look on what can be done with it? Check out this video!

Now, to start with Oracle ADF Mobile, here are the first steps you will have to go through.

Download Oracle JDeveloper
Go to this link and download the install file for your environment (Windows, Linux-32bit or Generic)
Install JDeveloper (of course)
If you need help on this, look at the documentation (if you've downloaded 11gR2, click here)
Download Oracle ADF Mobile Bundle
This is the download page for Oracle ADF Mobile. Accept the license as usual at the top, and follow with the Download button. It will take you to another page, where you will see a table containing a download link. Click on it and it will start downloading a ZIP file.
Start JDeveloper
Start Oracle JDev. It may self update. Restart the IDE if you are asked to.
Go to Help > Check for updates
Click Next and make sure you are at the "Source" tab
Select "Install From Local File"
Select the Oracle ADF Mobile ZIP you downloaded on step 3
Finish the process

Now you have JDeveloper with Oracle ADF Mobile sucessfully installed!

There are two great tutorials to start coding with ADF Mobile. Just choose your platform!

And have fun! :-)

https://blogs.oracle.com/brunoborges/entry/first_steps_with_oracle_adf

Using Coherence API to get POF bytes

2013-01-04T13:28:00.002-02:00

Someone raised the question on how to use the Coherence API to get the bytes of an object in POF (Portable Object Format) programatically. So I came up with this small code that shows the very cool API simple usage :-)

   SimplePofContext spc = new SimplePofContext();
   spc.registerUserType(0, User.class, new UserSerializer()); 
   // consider UserSerializer as an implementation of PofSerializer
            
   User u = new User();
   u.setId(21);
   u.setName("Some Name");
   u.setEmail("some.name@domain.com");
            
   ByteArrayOutputStream baos = new ByteArrayOutputStream();
   DataOutput dataOutput = new DataOutputStream(baos);
   BufferOutput bufferOutput = new WrapperBufferOutput(dataOutput);
   spc.serialize(bufferOutput, u);
            
   byte[] byteArray = baos.toByteArray();
   System.out.println(Arrays.toString(byteArray));

Easy, isn't?

It can be easier with this line: ExternalizableHelper.toByteArray(Object, PofContext)

https://blogs.oracle.com/brunoborges/entry/coherence_pof_for_raw_byte

JavaOne 2012: Camel, Twitter, Coherence, Wicket and GlassFish

2013-01-04T13:27:00.004-02:00

Before joining Oracle as Product Manager for WebLogic and GlassFish for Latin America, at the beggining of this year I proposed two talks to JavaOne USA that I had been presenting in Brazil for quite a while. One of them I presented last year at ApacheCon in Vancouver, Canada as well in JavaOne Brazil. In June I got the news that they were accepted as Alternate Sessions. Surprisingly enough, few weeks later and at the same time I joined Oracle, I received the news that they were officially accepted and put on schedule.

Tomorrow I'll be flying to San Francisco, to my first JavaOne in the United States, and I wanted to share with you what I'm going to present there.
My two sessions are these ones:

Wed, 10/03, 4:30pm - CON2989 Leverage Enterprise Integration Patterns with Apache Camel and Twitter

On this one, you will be introducted to the Apache Camel framework that I had been talking about in Brazil at conferences, before joining Oracle, and to a component I contributed to integrate with Twitter. Also, you will have a preview of a new component I've been working on to integrate Camel with theOracle Coherence distributed cache.
Thu, 10/04, 3:30pm - CON3395 How Scala, Wicket, and Java EE Can Improve Web Development

This one I've been working on for quite a while. It was based on an idea to have an architecture that could be as agile as frameworks and technologies such as Ruby on Rails, PHP or Python, for rapid web development. You will be introduced to the Apache Wicket framework, another Apache project I enjoy working with and gave lots of talks at Brazilian conferences, including JavaOne Brazil, JustJava, QCon SP, and The Developers Conference. You will also be introduced to the Scala language and how to create nice DSLs to boost productiveness. And last but not least, the Java EE 6 platform, that offers an awesome improvement from previous versions with its CDI, JPA, EJB3 and JAX-RS features for web development.

Other events I will be participating during my stay in SF:

If you have any other event to suggest, please do suggest! It's my first JavaOne and I'm really looking forward to enjoying everything.

See you guys in a few days!!

https://blogs.oracle.com/brunoborges/entry/javaone_2012_camel_twitter_coherence

WebLogic Application Server: free for developers!

2013-01-04T13:27:00.002-02:00

Great news! Oracle WebLogic Server is now free for developers! What does this mean for you? That you as a developer are permited to:

"[...] deploy the programs only on your single developer desktop computer (of any type, including physical, virtual or remote virtual), to be used and accessed by only (1) named developer."

But the most interesting part of the license change is this one:

"You may continue to develop, test, prototype and demonstrate your application with the programs under this license after you have deployed the application for any internal data processing, commercial or production purposes" (Read the full license agreement here)

If you want to take advantage of this licensing change and start developing Java EE applications with the #1 Application Server in the world, read now the previous post, How To Install WebLogic Zip on Linux!

https://blogs.oracle.com/brunoborges/entry/weblogic_server_free_for_developers

How to Install WebLogic 12c ZIP on Linux

2013-01-04T13:26:00.005-02:00

I knew that WebLogic had this small ZIP distribution, of only 184M, but what I didn't know was that it is so easy to install it on Linux machines, specially for development purposes, that I thought I had to blog about it.

You may want to check this blog, where I found the missing part on this how to, but I'm blogging this again because I wanted to put it in a simpler way, straight to the point. And if you are looking for a how to for Mac, check Arun Gupta's post.

So, here's the step-by-step:

1 - Download the ZIP distribution (don't worry if your system is x86_64)
Don't forget to accept the OTN Free Developer License Agreement!

2 - Choose where to install your WebLogic server and your domain, and set as your MW_HOME environment variable
I will use /opt/middleware/weblogic for this how to

export MW_HOME=/opt/middleware/weblogic

Make sure this path exists in your system. 'mydomains' will be used to keep your WebLogic domain.

mkdir -p $MW_HOME/mydomain

3 - If you don't have your JAVA_HOME environment variable still configured, do it. Point it to where your JDK is installed.

export JAVA_HOME=/usr/lib/jvm/default-java

4 - Unzip the downloaded file into MW_HOME

unzip wls1211_dev.zip -d $MW_HOME

5 - Go to that directory and run configure.sh

cd $MW_HOME
./configure.sh

6 - Call the setEnvs.sh script
. $MW_HOME/wlserver/server/bin/setWLSEnv.sh



7 - Create your development domain. It will ask you for username and password. I like to use weblogic / welcome1

cd $MW_HOME/mydomain
$JAVA_HOME/bin/java $JAVA_OPTIONS -Xmx1024m \
-Dweblogic.management.allowPasswordEcho=true weblogic.Server

8 - Start WebLogic and access its web console

(sh startWebLogic.sh &); sleep 10; firefox http://localhost:7001/console

Usually, it takes only 10 seconds to start a domain, and 5 more to deploy the Administration Console (on my laptop). :-)

Enjoy!

https://blogs.oracle.com/brunoborges/entry/how_to_install_weblogic_12c

WebLogic 12c Overview - OTN Tour 2012

2013-01-04T13:26:00.001-02:00

I had the pleasure to be part of the OTN Tour 2012 Latin America, that is going on right now (August 2012) and to know some folks from Oracle HQ, but more importantly, to present architects, administrators, DBAs and software developers a little bit of Oracle WebLogic 12c and its great integrations with other Oracle products, specially Oracle RAC with its Active GridLink, Coherence Data Grid and of course, Oracle Exalogic.

If you couldn't come to the OTN Tour in Buenos Aires and Montevideo, don't worry. The slides are right here! :-)

Introducing WebLogic 12c OTN Tour 2012 from Bruno Borges

Issue dev'ing RESTful JSON services on NetBeans

2013-01-04T13:25:00.002-02:00

Here is a tricky issue that you may find if you are developing RESTful services with Java EE on NetBeans and GlassFish or WebLogic. If you want to support the JSON format but need to access some implementation classes like @JsonIgnore, you need to add the JAX-RS RI, Jersey, to your project's Libraries definition. How to add the RI? You will probably do this:

Open project's Properties (right click on the project)
Go to Libraries
Click on 'Add Library'
Select 'Jersey 1.8 (JAX-RS RI)

But you won't have your service running fine. You may find these exceptions: (added here so Google can help future users)

1 - If you try to access your RESTful service to get a JSON format of it, you will get this exception:

com.sun.jersey.spi.inject.Errors$ErrorMessagesException
at com.sun.jersey.spi.inject.Errors.processErrorMessages(Errors.java:170)
at com.sun.jersey.spi.inject.Errors.postProcess(Errors.java:136)
at com.sun.jersey.spi.inject.Errors.processWithErrors(Errors.java:199)

2 - If you try to access your RESTful service to get an XML format, you will get this exception:

java.lang.RuntimeException: javax.naming.NameNotFoundException: Unable to resolve 'com.sun.jersey.config.CDIExtension'. Resolved 'com.sun.jersey.config'; remaining name 'CDIExtension'
at com.sun.jersey.server.impl.cdi.CDIExtension.getInitializedExtension(CDIExtension.java:177)
at com.sun.jersey.server.impl.cdi.CDIComponentProviderFactory.(CDIComponentProviderFactory.java:92)
at com.sun.jersey.server.impl.cdi.CDIComponentProviderFactoryInitializer.initialize(CDIComponentProviderFactoryInitializer.java:75)
at com.sun.jersey.spi.container.servlet.WebComponent.configure(WebComponent.java:576)
at com.sun.jersey.spi.container.servlet.ServletContainer$InternalWebComponent.configure(ServletContainer.java:311)

If you look at your server's log, (in my case, I was using WebLogic 12c) you may find this message somewhere:

WARNING:
**********
The application is using ServletContainerInitializer class com.sun.jersey.server.impl.container.servlet.JerseyServletContainerInitializer that is loaded from:file:/labs/wls1211/modules/com.sun.jersey.server_1.1.0.0_1-9.jar. This initializer overrides the one available in the system.
**********

When you added Jersey to your library, the "package" checkbox was checked by default. So the JAR ended up going into WEB-INF/lib of your project, conflicting to the already provided by the container.

So, how to fix this issue? Follow these steps:

Open project's Properties (right click on the project)
Go to Libraries
Uncheck the checkbox 'Package' for Jersey 1.8 (JAX-RS RI)
Click on 'OK'
Clean & Build (right click on the project) ---> remember to clean and rebuild your project
(re)Deploy application

Done! :_)

https://blogs.oracle.com/brunoborges/entry/issue_dev_ing_restful_json

Enable WebLogic 12c FastSwap with NetBeans

2013-01-04T13:24:00.003-02:00

Hey everyone, this is my first post, and although I have been working at Oracle since July 2nd, I wanted it to have valuable information, not just a "Hey look, I joined Oracle". So this is it, welcome to my blog!

How to enable WebLogic 12c FastSwap when developing Java EE applications with NetBeans? Very simple!

Open the file WEB-INF/weblogic.xml

If your application is an EAR, open weblogic-application.xml

Enable FastSwap

<fast-swap>
    <enabled>true</enabled>
</fast-swap>

Now open the Properties dialog for your project
Navigate to Run
Disable the checkbox "Deploy on Save"
Close the Properties dialog
Re-deploy your application

Done! Now give it a try. Modify some Java code and refresh the web page that access that code. Remember you don't need to re-deploy your application anymore. NetBeans already deploys it as exploded WAR/EAR. Faster than the re-deploy feature!

Also, FastSwap is a feature that is built-in to WebLogic 12c and there's no need to install anything. For more information about FastSwap, follow this link (for WebLogic 12.1.1).

Was this a valuable information for you? Sure it was for me :-)

Originally from https://blogs.oracle.com/brunoborges/entry/enable_weblogic_12c_fastswap_with

TAM Linhas Aereas nao entende Fuso Horario

2012-10-08T03:00:00.001-03:00

Carta enviada ao Presidente da TAM Linhas Aereas a poucos minutos...

San Francisco, CA - 7 de Outubro de 2012 as 22:53

Ao Presidente,

Sou Bruno Cesar Borges, cliente TAM JJ 2543****, localizado atualmente em San Francisco, CA, e fiz uma compra de passagem aerea hoje (cod reserva: 3PW***), por volta de 10:00 AM no fuso horario de San Francisco (GMT-7). Apos aproximadamente 10 horas, fiz meu primeiro contato com a central, as 21:42 (GMT-7). Por estar nos Estados Unidos, nao tenho acesso ao SAC (0800-123-200), e por isso, entrei em contato com a Central de Vendas no numero +55 (11) 4002-5700.

Informei a atendente de que queria cancelar e extornar minha compra, segundo o que consta no Artigo 49 do Codifo de Defesa do Consumidor. A atendente disse que somente seria possivel atender minha solicitacao, se eu tivesse ligado para a central no mesmo dia.

Entendo que estou no mesmo dia que fiz a compra, dia 7 de Outubro de 2012, e portanto tenho direito ao o que a atendente afirmou ser pratica da compania. Porem ela afirmou que nao importa o horario em que estou, ou o fuso horario. O que importa segundo ela, eh o horario de Brasilia (GMT-3). Afirmei que estava em SF, e ateh exemplifiquei que, se estivesse no Acre e tivesse feito a compra as 22:59 e em seguida ligado para desistir da compra, eu como um suposto acreano, seria prejudicado pela politica da empresa.

Tambem quero questionar sobre o direito de cancelamento de compras de produtos ou servicos, segundo consta o Artigo 49 do Codigo de Defesa do Consumidor. A atendente afirmou que por nao constar no contrato da compania area TAM Linhas Aereas, este direito nao existe.

Entendo, como cidadao brasileiro, a superioridade do CDC frente a qualquer contrato de relacao entre empresa e consumidor, principalmente nos casos onde o contrato eh imposto e nao ha a possibilidade de negociar clausulas.

Conto com a sua colaboracao para esclarecer este assunto, e espero assim que os comentarios publicados na rede social Twitter abaixo, possam ser rapidamente excluidos:

- https://twitter.com/brunoborges/status/255170375355351040
- https://twitter.com/brunoborges/status/255170586492403713
- https://twitter.com/brunoborges/status/255171046066515969
- https://twitter.com/brunoborges/status/255177579269607425
- https://twitter.com/brunoborges/status/255179286087077888

Att.
Bruno Borges

Talvez voce nao tenha reparado, mas quem mora no Acre, fizer uma compra as 22:59, e decidir em seguida cancelar a compra, para a TAM, este cancelamento nao eh possivel, pois ela agora esta em outro dia. Fora novamente, o fato de eles ignorarem, e nao respeitarem o Art 49 do CDC.

@TAMAirlines #EPIC #FAIL

*** UPDATE *** 10/10/2012 15:05 ***
A TAM respondeu com o seguinte texto:

FALE-45922861

São Paulo, outubro de 2012. Prezado Sr. Bruno,

Tomamos conhecimento de seus comentários publicados no Twitter referente ao reembolso do bilhete 957 2456 412322.

Compreendemos sua solicitação de isenção da taxa cobrada para reembolso de seu bilhete, mas infelizmente não poderemos atendê-lo.

É importante informar que a taxa administrativa cobrada pelo reembolso de bilhetes é uma condição do tipo de tarifa adquirida. O cliente deve ter ciência de todas as condições da tarifa escolhida ao comprar o bilhete. A taxa administrativa somente não é cobrada quando o cancelamento for involuntário por parte do Cliente.

Ressaltamos que o direito de arrependimento previsto no artigo 49 do Código de Defesa do Consumidor não se aplica no caso de compra de passagens aéreas feitas pela internet ou Call Center, uma vez que o Cliente recebe todas as informações necessárias, como data, horário, trecho e número do voo.

Desta forma, a taxa administrativa cobrada pela empresa aérea, que varia de acordo com a base tarifária do bilhete, deve ser verificada no momento da solicitação de reembolso.

De acordo com a ANAC (Agência Nacional de Aviação Civil), o prazo máximo para reembolso deve ser de 30 dias a contar da data da solicitação. Apenas quando a forma de pagamento for cartão de crédito, esse prazo pode ser maior em razão dos procedimentos internos das administradoras de cartões para o lançamento do valor na fatura do Cliente.

Contamos com sua compreensão e queremos que saiba que permanecemos, como sempre, à disposição para conhecer suas opiniões.

Atenciosamente,

Ouvidoria Fale com o Presidente
TAM Linhas Aéreas S/A

TAM, vou te contar duas histórias:

1) Certa vez, comprei uma TV de 40", com controle-remoto e tudo certo, do jeito que eu queria. Eu sabia exatamente como a TV era. Mesmo assim, 2 dias depois de comprar a TV, eu cancelei a compra (usando-me do direito do Art. 49 do CDC), pois preferi comprar sabe o que? Uma TV maior! Maior! Paguei mais caro! O site ficou feliz. Aceitou o cancelamento, e em troca, vendeu um produto que custava ainda mais caro.

Eu queria cancelar o bilhete, para comprar outro, em outra data/horario! Mesmo que o valor fosse superior, eu iria fazer a compra, por que eu gostava de voces. Mas vocês rejeitaram meu pedido!

2) Eu liguei para vocês aproximadamente 10 horas depois de ter feito a compra. Que regra estúpida é essa de considerar que 1 dia pode ter de 1 a 23 horas? Vivemos em um mundo online, digital, e vocês sendo uma compania aérea, sabem mais do que ninguém, como funcionam os fusos horários! A tal política de "Aceitamos cancelamentos se o pedido for feito no mesmo dia da compra" é ridícula!

Vocês estão prejudicando quem mora no Acre! Que bela forma de tratar seus clientes! Dando tratamento preferencial somente para quem está no mesmo fuso horário de vocês!!

Se eu estivesse na Europa, talvez teria tido mais chance... Que belo sistema o de vocês! :-(

#TAM #Mega #Fail

*** UPDATE 10/10/2012 15:54 ***
Reclamacão registrada no Reclame Aqui:

http://www.reclameaqui.com.br/3690867/tam-linhas-aereas/tam-linhas-aereas-ignora-diferenca-de-fuso-horario-e-ignora/

*** UPDATE 10/10/2012 16:45 ***
Aparentemente, a TAM estipula prazos em formatos diferentes para cada caso. Neste por exemplo, um passageiro pergunta um prazo para algo chamado "AVIH", e a TAM diz que é de no mínimo 24 horas. Não é "1 dia" e provavelmente, não tem problema de fuso horário.

https://twitter.com/TAMAirlines/status/255772305937027072

*** UPDATE 11/10/2012 11:54 ***
A TAM respondeu novamente, desta vez com um tom diferente. Parece que o desrespeito ao Art. 49 do CDC é ocasionado por dificuldades técnicas deles. Hhhmmm... Ei, TAM, non est mea culpa! O problema é seu, risco do negócio. A propósito, esse seu sistema é meio faminto: se eu pagar a multa indevida, o seu sistema cancela e estorna minha compra sem nenhuma dificuldade técnica. Bizzaaaaarro...

FALE-45971801

São Paulo, outubro de 2012.

Prezado Sr. Bruno,

Tomamos conhecimento de seu e-mail enviado ao site Reclame Aqui relatando o fato ocorrido quando da emissão de seu bilhete de número 957 2456 412322.

Gostaríamos de informar que o nosso site indica a necessidade de conferir todos os dados do bilhete antes da finalização da transação, oferecendo a opção de cancelamento antes da efetivação de sua compra. Além disso, o e-ticket é gerado num sistema que está atrelado a reserva, check-in, faturamento e cartão de crédito sendo que todas as operações são coordenadas. Por questões de segurança, as operações não podem ser revertidas após a efetivação da compra.

Dessa forma, a solução disponível é a solicitação de reembolso, que será feita no seu cartão de crédito mediante pagamento de uma taxa administrativa calculada de acordo com a tarifa ou o comparecimento a uma loja TAM para efetuar a reemissão do bilhete mediante o pagamento da taxa de remarcação e/ou o pagamento da diferença tarifária, caso não haja mais vagas na mesma classe tarifária.

Sendo assim, esperamos contar com a sua compreensão referente a impossibilidade em atender o seu pedido de isenção da taxa de reembolso.

Queremos que saiba que permanecemos, como sempre, à disposição para conhecer suas opiniões.

Atenciosamente,

Dropbox locked me out

2012-09-24T13:55:00.000-03:00

I know Dropbox had a few security issues recently, that required them to add an extra security layer, like the 2-step verification. And that's great! But not allowing its users to, somehow, recover their account access is a little bit, frustrating. All started when I bought a new phone (Samsung Galaxy S3) at the same time that I was changing between carriers (so, different phone number).

Thing is, I missed the opportunity to log in to my Dropbox account to change my phone number, before ending the contract with the previous carrier. And that got me into a weird situation.

Right before ending the carrier contract, I turned on my SGS3, logged in with my Google account and with my Dropbox account, and got 50GB of extra space thanks to Samsung and its partnership with Dropbox. Important note: I still have access to my Dropbox account on my SGS3 throught Dropbox's own Android application.

So I still had the 2-step verification code on my old phone. But after loading lots and lots of apps to the SGS3, and with Dropbox connected, functional and so on, I decided it was OK to Data Factory reset that old phone. Shame on me: I forgot to save that 2svc.

So I emailed Dropbox explaining this, and then I got this reply:

Matthew B. - Dropbox Support, Sep 17 03:09 pm (PDT):Hi Bruno,
Thanks for contacting the Dropbox Support! I'd be happy to help you out.
If you can, please try to login to the website through a computer that you have already logged in since you enabled 2FA. This way you can head to the settings and disable 2FA, and then re-enable it.
If you are unable to log in under any machine, please let me know!
Best,
Matthew

So I replied to him saying that no, I do not have access to my Dropbox account from any computer. Why? Cookies expire, you know? And Dropbox is not the kind of service that we access that often. This time, a new support guy replied this:

Kevin - Dropbox Support, Sep 19 12:20 am (PDT):Hi Bruno,
Unfortunately, for security purposes, if you can't enter the two-step code, and you failed to store the emergency backup code, we have no way to help you regain access to your Dropbox account.
If you still have access to a computer with your Dropbox files on it, you can transfer your files to your new account by unlinking and relinking your Dropbox desktop application to your new account.
For detailed instructions on how to do this, visithttps://www.dropbox.com/help/25Please let me know if there is anything else I can do for you.
Best,
Kevin

Ok, let me put this straight:

I don't have access to my Dropbox from a desktop
I do have access to my Dropbox account from my phone

I can CRUD all files in there

Dropbox says that, for security purposes, they have no way to help me regain access
Dropbox ignores the fact of #2 and #2-1, which is not secure at all, if I wasn't... me
I am able to change my account password without 2-step verif. code

So Dropbox, update your Android app, so I can turn off the 2-step verification, like I would do if I had access from a desktop as you told me to do.

Tip for services like this: if you ever offer some high priority, so freaking important feature like this in your web interface, make sure your mobile app has that same feature.

Box.net, prepare for some mass uploads arriving today in the meanwhile.

Customizing Camel components within Scala DSL

2012-09-14T17:12:00.000-03:00

Even though I joined Oracle last July, I continue to have fun with some of other technologies, like the Scala language. And as I used to evangelize the Apache Camel framework in Brazil, I think I still owe some things to the Open Source community.

In a few weeks, I will be at JavaOne to talk about Apache Camel and the Camel Twitter component that I contributed, together with Brett Meyer, months ago. So while developing the demo, I found a small issue with the Camel Scala DSL that couldn't find anywhere else.

How to customize components within the Scala DSL for Apache Camel?
It happens that, using Java DSL, you can customize components simply like this:

But using Scala DSL, does that really work?

Not really... If you try this, the Camel Twitter component will throw an error saying that no token was provided for authentication. So here is how you make it work:

Hope this helps you some day! And you are welcome to attend my session "Leverage Enterprise Integration Patterns with Apache Camel and Twitter", at JavaOne 2012!

Bruno Borges - Just Blogging

Líderes de JUG de Latinoamérica, Oracle quiere ponerse en contacto

1 - Creating the WebSocket Server Endpoint

2 - Creating the SessionBean to send JMS messages

3 - Forwarding an incoming WebSocket message to a JMS destination

4 - Listening to a JMS Destination with a MessageDriven Bean

5 - Firing CDI events with the JMS Message payload

6 - Listening to CDI events within the WebSocket server endpoint

7 - Client-side Javascript to connect with the WebSocket server endpoint

Conclusion

What's new in Java EE 7 at JUDCon Brazil 2013

Coup d'état Brazil 2013: how to ruin a democracy

Redeploy de aplicações em produção no WebLogic

What's new in Java EE 7 at JUDCon Brazil 2013

OHS and APK files

(step-by-step on OHS 11g) 4.4.2.1.1 Using Fusion Middleware Control to Configure MIME Types

Encontro SouJava na Oracle (JMS e Cache Distribuido)

BlocoDroid Premium 2013

BlocoDroid 2013: Carnaval e Blocos de Rua

Reasons to why I'm reconsidering JSF

WebFX: Running JavaFX as web page

7 reasons you had to be at JavaOne Latin America 2012

GlassFish and Friends Party, 1st Edition at JavaOne Brasil

First steps with Oracle ADF Mobile for iOS and Android

Using Coherence API to get POF bytes

JavaOne 2012: Camel, Twitter, Coherence, Wicket and GlassFish

WebLogic Application Server: free for developers!

How to Install WebLogic 12c ZIP on Linux

WebLogic 12c Overview - OTN Tour 2012

Issue dev'ing RESTful JSON services on NetBeans

Enable WebLogic 12c FastSwap with NetBeans

TAM Linhas Aereas nao entende Fuso Horario

Dropbox locked me out

Customizing Camel components within Scala DSL

(step-by-step on OHS 11g)
4.4.2.1.1 Using Fusion Middleware Control to Configure MIME Types