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• Prepping the Raspberry Pi for Java Excellence (part 1)

  - by HecklerMark

  I've only recently been able to begin working seriously with my first Raspberry Pi, received months ago but hastily shelved in preparation for JavaOne. The Raspberry Pi and other diminutive computing platforms offer a glimpse of the potential of what is often referred to as the embedded space, the "Internet of Things" (IoT), or Machine to Machine (M2M) computing. I have a few different configurations I want to use for multiple Raspberry Pis, but for each of them, I'll need to perform the following common steps to prepare them for their various tasks: Load an OS onto an SD card Get the Pi connected to the network Load a JDK I've been very happy to see good friend and JFXtras teammate Gerrit Grunwald document how to do these things on his blog (link to article here - check it out!), but I ran into some issues configuring wi-fi that caused me some needless grief. Not knowing if any of the pitfalls were caused by my slightly-older version of the Pi and not being able to find anything specific online to help me get past it, I kept chipping away at it until I broke through. The purpose of this post is to (hopefully) help someone else recognize the same issues if/when they encounter them and work past them quickly. There is a great resource page here that covers several ways to get the OS on an SD card, but here is what I did (on a Mac): Plug SD card into reader on/in Mac Format it (FAT32) Unmount it (diskutil unmountDisk diskn, where n is the disk number representing the SD card) Transfer the disk image for Debian to the SD card (dd if=2012-08-08-wheezy-armel.img of=/dev/diskn bs=1m) Eject the card from the Mac (diskutil eject diskn) There are other ways, but this is fairly quick and painless, especially after you do it several times. Yes, I had to do that dance repeatedly (minus formatting) due to the wi-fi issues, as it kept killing the ability of the Pi to boot. You should be able to dramatically reduce the number of OS loads you do, though, if you do a few things with regard to your wi-fi. Firstly, I strongly recommend you purchase the Edimax EW-7811Un wi-fi adapter. This adapter/chipset has been proven with the Raspberry Pi, it's tiny, and it's cheap. Avoid unnecessary aggravation and buy this one! Secondly, visit this page for a script and instructions regarding how to configure your new wi-fi adapter with your Pi. Here is the rub, though: there is a missing step. At least for my combination of Pi version, OS version, and uncanny gift of timing and luck there was. :-) Here is the sequence of steps I used to make the magic happen: Plug your newly-minted SD card (with OS) into your Pi and connect a network cable (for internet connectivity) Boot your Pi. On the first boot, do the following things: Opt to have it use all space on the SD card (will require a reboot eventually) Disable overscan Set your timezone Enable the ssh server Update raspi-config Reboot your Pi. This will reconfigure the SD to use all space (see above). After you log in (UID: pi, password: raspberry), upgrade your OS. This was the missing step for me that put a merciful end to the repeated SD card re-imaging and made the wi-fi configuration trivial. To do so, just type sudo apt-get upgrade and give it several minutes to complete. Pour yourself a cup of coffee and congratulate yourself on the time you've just saved.  ;-) With the OS upgrade finished, now you can follow Mr. Engman's directions (to the letter, please see link above), download his script, and let it work its magic. One aside: I plugged the little power-sipping Edimax directly into the Pi and it worked perfectly. No powered hub needed, at least in my configuration. To recap, that OS upgrade (at least at this point, with this combination of OS/drivers/Pi version) is absolutely essential for a smooth experience. Miss that step, and you're in for hours of "fun". Save yourself! I'll pick up next time with more of the Java side of the RasPi configuration, but as they say, you have to cross the moat to get into the castle. Hopefully, this will help you do just that. Until next time! All the best, Mark 

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• UPK 3.6.1 New Feature - Publish Presentation

  - by peter.maravelias

  UPK includes numerous options for deploying the content you have created. Most UPK users are familiar with the UPK Player and the various document outputs that have been available as publishing formats for some time now. In addition UPK provides the content developer the ability to publish content for use in specific environments, LMS, Test Director are two examples. UPK 3.6.1 adds the Presentation publishing type. The Presentation publishing type produces a slideshow presentation of screenshots and text of each topic as a separate Microsoft PowerPoint file. To publish to the presentation option just select the type under the documents category in the publishing wizard. Give this new publishing type a try and let us know what you think by posting a comment. The Presentation publishing type feature came from a customer request and given the ever growing methods and channels for communication we'd like to know what other output types or methods of using existing outputs you would like to see in a future release of UPK.

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• "Clouds Bring Agility to the Enterprise (Part 1 and 2)"

  podcasts with Sushil Kumar available at http://bit.ly/4vtJfU

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• SOA Governance Starts with People and Processes

  - by Jyothi Swaroop

  While we all agree that SOA Governance is about People, Processes and Technology. Some experts are of the opinion that SOA Governance begins with People and Processes but needs to be empowered with technology to achieve the best results. Here's an interesting piece from David Linthicum on eBizq: In the world of SOA, the concept of SOA governance is getting a lot of attention. However, how SOA governance is defined and implemented really depends on the SOA governance vendor who just left the building within most enterprises. Indeed, confusion is a huge issue when considering SOA governance, and the core issues are more about the fundamentals of people and processes, and not about the technology. SOA governance is a concept used for activities related to exercising control over services in an SOA, including tracking the services, monitoring the service, and controlling changes made to the services, simple put. The trouble comes in when SOA governance vendors attempt to define SOA governance around their technology, all with different approaches to SOA governance. Thus, it's important that those building SOAs within the enterprise take a step back and understand what really need to support the concept of SOA governance. The value of SOA governance is pretty simple. Since services make up the foundation of an SOA, and are at their essence the behavior and information from existing systems externalized, it's critical to make sure that those accessing, creating, and changing services do so using a well controlled and orderly mechanism. Those of you, who already have governance in place, typically around enterprise architecture efforts, will be happy to know that SOA governance does not replace those processes, but becomes a mechanism within the larger enterprise governance concept. People and processes are first thing on the list to get under control before you begin to toss technology at this problem. This means establishing an understanding of SOA governance within the team members, including why it's important, who's involved, and the core processes that are to be follow to make SOA governance work. Indeed, when creating the core SOA governance strategy should really be independent of the technology. The technology will change over the years, but the core processes and discipline should be relatively durable over time.

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• Java Spotlight Episode 148: Bruno Souza on SouJava and the JCP @JCP @Soujava

  - by Roger Brinkley

  Interview with Bruno Souza of SouJava on the upcoming JCP elections, SouJava's involvement in the JCP, Adopt a JSR program, transparency, and Juggy.. Right-click or Control-click to download this MP3 file. You can also subscribe to the Java Spotlight Podcast Feed to get the latest podcast automatically. If you use iTunes you can open iTunes and subscribe with this link: Java Spotlight Podcast in iTunes. Show Notes News Java SE 8: Lambda Quick Start JCP Executive Committee Elections start Oct 15 Java EE 7 Certification Survey - Participants Needed Events Oct 28-30, JAX London, London Nov 4-8, Oredev, Malmö, Sweden Nov 6, JFall, Amsterdam, Netherlands Nov 11-15, Devoxx, Belgium Feature Interview Bruno Souza is a Java Developer and Open Source Evangelist at Summa Technologies, and a Cloud Expert at ToolsCloud. Nurturing developer communities is a personal passion, and Bruno worked actively with Java, NetBeans, Open Solaris, OFBiz, and many other open source communities. As founder and coordinator of SouJava (The Java Users Society), one of the world's largest Java User Groups, Bruno leaded the expansion of the Java movement in Brazil. Founder of the Worldwide Java User Groups Community, Bruno helped the creation and organization of hundreds of JUGs worldwide. A Java Developer since the early days, Bruno participated in some of the largest Java projects in Brazil. What’s Cool ControlsFX 8.0.2 Release Screencast by Adam Bien on using JavaFX with Maven and SceneBuilder New DukePad video by Jasper Potts

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• Project Nashorn Slides & Talks

  - by $utils.escapeXML($entry.author)

  At the Eclipse Demo Camp in Hamburg last week I got asked about resources on Project Nashorn. So, I compiled a quick list:slides from Jim Laskey's JavaOne 2011 talk titled "The Future of JavaScript in the JDK".slides from Bernard Traversat's JavaOne 2011 talk titled "HTLM5 and Java: The Facts and the Myths".slides and video from Jim Laskey's JVM Language Simmit talk titled "Adventures in JSR 292 (Nashorn)".

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• NetBeans Podcast #61

  - by TinuA

  Download mp3: 39 minutes – 31.6 MB Subscribe to the NetBeans Podcast on iTunes NetBeans Community News with Geertjan and Tinu What's NEW? The Smarter and NOW FASTER NetBeans IDE 7.2 available since July. Is it faster for you too? Tell us about it on Twitter! (#netbeans) NetBeans Community Day at JavaOne is BACK!!! Join the NetBeans team in San Francisco on Sunday, September 30th for a full day of sessions about how various Java EE, JavaFX, and NetBeans Platform experts are using NetBeans in the real-world. NetBeans Community Day is just the start of the fun at JavaOne 2012, check out the full listing of ALL NetBeans-related sessions at the conference. NetBeans Governance Board elections are around the corner. Nominate yourself or someone who you think can represent the interest of the NetBeans Community. Email us at nbpodcast at netbeans dot org to get on the ballot in September. Community Interview: Çagatay Çivici, PrimeFaces Çagatay Çivici is the lead architect and founder of PrimeFaces , the popular JSF component library. Find out what the project is about, its inception, how to create PrimeFaces-based application inside NetBeans IDE, and more. Learn more about PrimeFaces at NetBeans Community Day at JavaOne 2012. Dig deeper into PrimeFaces at JavaOne 2012: CON6139 - Lessons Learned in Building Enterprise and Desktop Applications with the NetBeans IDE Community Interview: Timon Veenstra, Agrosense Timon Veenstra is the architect behind Agrosense , an open-source farm management system built on the NetBeans Platform. Find out how Agrosense helps farms run more efficiently and productively, and why NetBeans is the platform of choice for Timon and the Agrosense team. Catch a demo of Agrosense at NetBeans Community Day at JavaOne 2012. API Design with Jarda Tulach Geertjan has been using the Lookup API incorrectly; Jarda sets him on the right path. *Have ideas for NetBeans Podcast topics? Send them to nbpodcast at netbeans dot org. *Subscribe to the official NetBeans page on Facebook! Check us out as well on Twitter, YouTube, and Google+.

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• ?Portal Content Personalization

  - by john.brunswick

  To make the most effective use of a portal and content management platform, personalization is a critical component of delivering the most value to end users. Regardless of what type of constituents you may be serving, content relevance is critical to support business goals like self-service, communication within a geographically distributed organization, lead generation and customer loyalty effectively. This especially holds true when serving external parties, as they generally have a lower threshold for digging through your site to locate a particular item of interest and are apt to leave or dial a helpdesk if their efforts cannot locate the relevant information. Optimal delivery of content can be achieved through a variety of methods, but it is generally a blend of security and filtering via meta data that can drive the most return with the least amount of upfront effort and ongoing upkeep. In a portal environment various platform components have their strong suits and by combining the capabilities of enterprise portal and content platforms much of the groundwork for personalization can be achieved in a configuration-based manner. In our discussion we will cover terminology and concepts, example scenarios and technical implementation strategies to help showcase how personalization of content can be achieved within a portal from a technical and strategic standpoint. Read on to better understand the chart below and the components at our disposal to personalize content delivery. Read on... click here to view a full size chart

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• View Clipboard & Copy To Clipboard from NetBeans IDE

  - by Geertjan

  Thanks to this code, I can press Ctrl-Alt-V in NetBeans IDE and then view whatever is in the clipboard: import java.awt.Toolkit; import java.awt.datatransfer.DataFlavor; import java.awt.datatransfer.Transferable; import java.awt.datatransfer.UnsupportedFlavorException; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.io.IOException; import javax.swing.JOptionPane; import org.openide.awt.ActionRegistration; import org.openide.awt.ActionReference; import org.openide.awt.ActionReferences; import org.openide.awt.ActionID; import org.openide.util.NbBundle.Messages; @ActionID( category = "Tools", id = "org.demo.ShowClipboardAction") @ActionRegistration( displayName = "#CTL_ShowClipboardAction") @ActionReferences({ @ActionReference(path = "Menu/Tools", position = 5), @ActionReference(path = "Shortcuts", name = "DA-V") }) @Messages("CTL_ShowClipboardAction=Show Clipboard") public final class ShowClipboardAction implements ActionListener { @Override public void actionPerformed(ActionEvent e) { JOptionPane.showMessageDialog(null, getClipboard(), "Clipboard Content", 1); } public String getClipboard() { String text = null; Transferable t = Toolkit.getDefaultToolkit().getSystemClipboard().getContents(null); try { if (t != null && t.isDataFlavorSupported(DataFlavor.stringFlavor)) { text = (String) t.getTransferData(DataFlavor.stringFlavor); } } catch (UnsupportedFlavorException e) { } catch (IOException e) { } return text; } } And now I can also press Ctrl-Alt-C, which copies the path to the current file to the clipboard: import java.awt.Toolkit; import java.awt.datatransfer.Clipboard; import java.awt.datatransfer.StringSelection; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import org.openide.awt.ActionID; import org.openide.awt.ActionReference; import org.openide.awt.ActionReferences; import org.openide.awt.ActionRegistration; import org.openide.awt.StatusDisplayer; import org.openide.loaders.DataObject; import org.openide.util.NbBundle.Messages; @ActionID( category = "Tools", id = "org.demo.CopyPathToClipboard") @ActionRegistration( displayName = "#CTL_CopyPathToClipboard") @ActionReferences({ @ActionReference(path = "Menu/Tools", position = 0), @ActionReference(path = "Editors/Popup", position = 10), @ActionReference(path = "Shortcuts", name = "DA-C") }) @Messages("CTL_CopyPathToClipboard=Copy Path to Clipboard") public final class CopyPathToClipboardAction implements ActionListener { private final DataObject context; public CopyPathToClipboardAction(DataObject context) { this.context = context; } @Override public void actionPerformed(ActionEvent e) { String path = context.getPrimaryFile().getPath(); StatusDisplayer.getDefault().setStatusText(path); StringSelection ss = new StringSelection(path); Clipboard clipboard = Toolkit.getDefaultToolkit().getSystemClipboard(); clipboard.setContents(ss, null); } }

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• New OTN Fusion Developer Days Coming

  Chicago, Houston, Vancouver, Seattle, Montreal

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• Defining Social Media Terms

  - by David Dorf

  As I talk about social in the context of retail, I sometimes get tripped up on different terms. I know what I mean, but the audience may have something else in mind. So I decided to see if I could find some well accepted definitions for common terms. While there are definitions on the Internet, I'm not sure they are well accepted. After reviewing several, here's what I came up with: Social Network: a structure of individuals and groups connected together by commonality. That seems pretty straightforward. A group of friends, co-workers, music fans, etc. The key here is that they have something in common that connects them. Social Media: Internet channels that support the collaborative publishing of information by and for social networks. The key here is to differentiate between traditional one-way media, and conversational social media. When its social its two-way, allowing both the publishing and consuming of information. Examples are blogs, wikis, Twitter, Facebook, etc. Social Marketing: the use of social media for marketing, public relations, and customer service. Wikipedia actually includes "selling" here but I think that's separate from marketing, as you'll see further down below. Most people look at social media as entertainment, but the marketing angle adds business value. This is where retailers discover and engage customers to build a relationship. Social Merchandising: the integration of social media and product discovery. Whereas marketing is focused more on brand image, customer engagement, and promotions, merchandising is more directly trying to convert browsers into purchases. This includes deciding what customers want, often by asking the social network, and deciding how to position products to the social network. Social Selling: the incorporation of e-commerce into social media. While on a social media site, social selling enables the purchasing of goods/services in the user's context, without leaving the social media channel. If a user clicks on an advertisement and is taken to an e-commerce site, then that's really just web advertising and not social selling. Well, do these terms and definitions make sense? Let me know what you think.

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• What will be important in Training in 2011?

  - by anders.northeved

    Now that we have started a new year I would like to give you a list of topics I think we will be discussing in training and learning in 2011. Some of the areas we have discussed earlier will still be just as important in 2011: Time-to-knowledge Still one of the most important issues for the training department. Internal content production Related to time-to-knowledge. How do we convert internal knowledge to a format that can be used for teaching others? LMS integration How do we get our existing LMS fully integrated with our other ERP modules like HCM, Order Management, Finance, Payroll etc. Some areas have been discussed before, but we’ll focus more on these in 2011: Combining internal and external training A majority of training departments use a combination of external and internal training. Having the right mix is vital for the quality and efficiency for most training organizations. Certification More rules and regulations means managing all employee certifications is more important than ever. Evolving trends in 2011: Social Learning We have been talking about this for a long time, but 2011 will be the year where we will start using it for real (OK, I also said so last year – but this year I’m right…). Real-life use of SCORM 2004 Again a topic we have talked about for a long time, but we are now actually starting to use it to give learners a better e-learning experience. How do we engage and delight the learner? e-learning makes economical sense, it can be easy to understand, it is convenient – but how do we make it more engaging and delight our learners? How to include more types of training in LMS One of the main focus area of 2011 will be how to manage and measure mobile learning , on-the-job-training and other forms of training in the LMS. Mobile Learning With the ever growing use of smart phones mobile learning will be THE hot topic of 2011 in the training world. New topics we will begin discussing in 2011: What is beyond web 2.0 and social learning? - could it be content verification and personal accreditation? Why gaming will not be the silver bullet for all types of e-learning Many people believe gaming can be used for any kind of training, but the creation is too expensive and time consuming for most applications. Do you agree with these predictions? What are your own predictions? Let me see your comments! (photo: © Marti, photoxpress.com)

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• LightFish, Adam Bien's lightweight telemetry application

  - by alexismp

  Adam Bien (Java Champion, JavaEE expert, book author, etc...), has been a GlassFish enthusiast for a while and he proves it again with his new open source project - LightFish, a lightweight monitoring and visualization application for GlassFish. Adam has a short intro and screencast about this standalone WAR application. The tool uses the new JavaEE 6 self-described JDBC connection and the GlassFish-bundled Derby database to provide drag-and-drop install. At runtime, once monitoring is enabled, calls to the RESTful admin API for GlassFish are emitted from a JavaFX dashboard plotting in real-time telemetry data on charts and graphs, including data for "Paranormal Activity". Check it out!

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• Dealing with Dilemmas

  - by frank.buytendijk

  I will be posting more about my upcoming book "Dealing with Dilemmas" over the coming months, but here is a first videoblog about it. frank

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• MySQL Connect and OurSQL Interview

  - by Keith Larson

  In the latest episode of our "Meet The MySQL Experts" podcast, I had the pleasure of being able to interview the hosts of the OurSQL podcast, Sheeri Cabral of Mozilla and Gerry Narvaja of Tokutek, about the upcoming MySQL Connect Conference.  Enjoy the podcast ! MySQL Connect Blog posts: MySQL Connect: New Keynote Announced MySQL Connect: Sessions From Users and Customers MySQL Connect: Some Fun Stuff! MySQL Connect: Replication Sessions MySQL Connect: Optimizer Sessions MySQL Connect: Focus on InnoDB Sessions Interview with Ronald Bradford about MySQL Connect Interview with Sarah Novotny about MySQL Connect Interview with Giuseppe Maxia "the datacharmer" about MySQL Connect Interview with Lenz Grimmer about MySQL Connect Plan Your MySQL Connect Conference With Schedule Builder You can check out the full program here as well as in the September edition of the MySQL newsletter. Not registered yet? You can still save US$ 300 over the on-site fee – Register Now!

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• GlassFish Clustering with DCOM on Windows

  - by ByronNevins

  DCOM - Distributed COM, a Microsoft protocol for communicating with Windows machines. Why use DCOM? In GlassFish 3.1 SSH is used as the standard way to run commands on remote nodes for clustering.  It is very difficult for users to get SSH configured properly on Windows.  SSH does not come with Windows so we have to depend on third party tools.  And then the user is forced to install and configure these tools -- which can be tricky. DCOM is available on all supported platforms.  It is built-in to Windows. The idea is to use DCOM to communicate with remote Windows nodes.  This has the huge advantage that the user has to do minimal, if any, configuration on the Windows nodes. Implementation HighlightsTwo open Source Libraries have been added to GlassFish: Jcifs – a SAMBA implementation in Java J-interop – A Java implementation for making DCOM calls to remote Windows computers.   Note that any supported platform can use DCOM to work with Windows nodes -- not just Windows.E.g. you can have a Linux DAS work with Windows remote instances.All existing SSH commands now have a corresponding DCOM command – except for setup-ssh which isn’t needed for DCOM.  validate-dcom is an all new command. New DCOM Commands create-node-dcom delete-node-dcom install-node-dcom list-nodes-dcom ping-node-dcom uninstall-node-dcom update-node-dcom validate-dcom setup-local-dcom (This is only available via Update Center for GlassFish 3.1.2) These commands are in-place in the trunk (4.0).  And in the branch (3.1.2) Windows Configuration Challenges There are an infinite number of possible configurations of Windows if you look at it as a combination of main release, service-pack, special drivers, software, configuration etc.  Later versions of Windows err on the side of tightening security be default.  This means that the Windows host may need to have configuration changes made.These configuration changes mostly need to be made by the user.  setup-local-dcom will assist you in making required changes to the Windows Registry.  See the reference blogs for details. The validate-dcom Command validate-dcom is a crucial command.  It should be run before any other commands.  If it does not run successfully then there is no point in running other commands.The validate-dcom command must be used from a DAS machine to test a different Windows machine.  If  validate-dcom runs successfully you can be confident that all the DCOM commands will work.  Conversely, the opposite is also true:  If validate-dcom fails, then no DCOM commands will work. What validate-dcom does Verify that the remote host is not the local machine. Resolves the remote host name Checks that the remote DCOM port is being listened on (135, 139) Checks that the remote host’s File Sharing is enabled (port 445) It copies a file (a script) to the remote host to verify that SAMBA is working and authorization is correct It runs a script that it copied on-the-fly to the remote host. Tips and Tricks The bread and butter commands that use DCOM are existing commands like create-instance, start-instance etc.   All of the commands that have dcom in their name are for dealing with the actual nodes. The way the software works is to call asadmin.bat on the remote machine and run a command.  This means that you can track these commands easily on the remote machine with the usual tools.  E.g. using AS_LOGFILE, looking at log files, etc.  It’s easy to attach a debugger to the remote asadmin process, “just in time”, if necessary. How to debug the remote commands:Edit the asadmin.bat file that is in the glassfish/bin folder.  Use glassfish/lib/nadmin.bat in GlassFish 4.0+Add these options to the java call:-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=1234  Now if you run, say start-instance on DAS, you can attach your debugger, at your leisure, to the remote machines port 1234.  It will be running start-local-instance and patiently waiting for you to attach.

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• JDeveloper on Facebook - quite an active user

  - by shay.shmeltzer

  If you are both a facebook user and a JDeveloper user then you should combine the two and become a fan of JDeveloper on facebook. Once you do, you'll start getting daily updates of recent blog entries relating to JDeveloper and ADF. Something like this: Quite a useful way to track what's going on in the JDeveloper sphere.

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• ASX: Just Another Stock Market Operator

  - by Theresa Hickman

  I try to stay informed with what's happening in global financial markets since we all know they are all interconnected. Last week, on Mar. 11 2010, Australia's Senate passed a law that reduced Australia's stock market's role to just a stock market operator. Before this, ASX (Australian Stock Exchange) acted as both its own regulator and operator (supervising trade actvities and handling the trades) of Australia's stock market. Many viewed this as a conflict of interest. So now, the Australian Securities & Investments Commision (ASIC) will act as regulator and ASX will simply be a stock market operator to ensure the continued integrity of financial markets. I believe what this is doing is laying the groundwork to have more than one stock exchange in Australia. I woudn't be surpised if Nasdaq makes a play. As you may or may not know, Nasdaq had been trying for years to take over control of the London Stock Exchange (LSE), which LSE had rejected because it thinks it is worth more than what Nasdaq is willing to pay. Nasdaq or even NYSE may want a piece of Asia/Pacific because nowadays most of the IPOs are coming from foreign companies outside the US. I didn't know this, but apparently many Asia/Pacific stock exchanges have a monopoly where they act as both regulator and operator. I'll be curious to see what happens after the ASIC meet and decide how to regulate Australia's stock exchange to see how many suitors come running towards Australia's financial market.

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• Want to Run OS Commands From WLST?

  - by Bala Kothandaraman

  If you spend a lot of time with WLST in the interactive mode, I am sure you have opened another command prompt/shell to check something at the OS file system level. If you wonder whether can execute an OS command from within WLST prompt, the answer is "Yes". This is very convenient similar to how you can execute OS commands from within "Vi" editor. In fact this feature is not from WLST but from underlying Jython. There is "os" module in Jython that provides a unified interface to a number of operating system functions. There is "system" function in the "os" module that can take a OS command as a string input and returns either "0" or "1" depends on whether the command was successful or failed. So this feature can also be used with scripting mode where the return code can be verified for further processing in the script. For eg. os.system(r'dir c:\bea') can list the contents of the bea folder under c drive. Notice the use of the preceding 'r' for escaping the entire string.

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• O modelo diamante para gerenciamento de projetos

  - by fernando.galdino

  Este ano comecei a fazer o mestrado em Gestão de Projetos. No decorrer deste período estudamos vários assuntos envolvendo abordagens de gerenciamento de projetos. Uma dessas abordagens é o Modelo Diamante. Elaborada por Aaron Shenhar e Dov Dvir, e explicada em detalhes no livro “Reinventando Gerenciamento de Projetos”, trata-se de uma estrutura que permite avaliar um projeto, e com base nos resultados, permite que o gerente de projetos possa usar uma abordagem como o descrito no PMBOK (PMI), de modo a aproveitar da melhor forma possível, as boas práticas listadas. A apresentação abaixo foi realizada por mim, numa das aulas do curso. Explica com alguns detalhes, e ao mesmo tempo fornece uma visão geral, sobre o modelo NTCP, que é uma estrutura que permite avaliar um projeto em termos de novidade, incerteza tecnológica, complexidade e ritmo.   Modelo NTCP View more presentations from Fernando Galdino.

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• Sony Ericsson txt: workhorse feature phone with Java ME tech

  - by hinkmond

  Just like your basic Quarter Horse, the new Sony Ericsson txt feature phone might not be as fancy as a "thoroughbred" smartphone, but it can sure get the job done with Java ME technology. See: Sony Ericsson txt w/Java ME Here's a quote: ...comes with the usual features such as a web browser, email client and music player and FM radio, plus support for social networking applications and a YouTube client. You can download and install additional Java applications... Sometimes the simple workhorse feature phone (with Java ME) is much better to go with than the idiosyncratic thoroughbred smartphone. Hinkmond

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• Using the af:poll to refresh parts of the page periodically

  - by shay.shmeltzer

  Just a quick sample of using the af:poll components. A component that enables you to do things in a periodic fashion. For example check if something has changed on the server and update the UI. A more "modern" approach is to actually use push instead of pull, and ADF Faces will allow you to do that with ADS (here, and here). But the poll still has its place. It's quite useful for dashboard type of applications where you want periodic updates of the graphs shown on the page. As you can see it's quite simple to use the tag. I also show my lazy approach to invoking declarative operations on a data control from a backing bean without manually writing code.

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• Integrating JavaFX Scene Builder in the IDEs

  - by Jerome Cambon

  I experienced recently using Scene Builder from Netbeans, Eclipse and IntelliJ IDEA. As you may know, Scene Builder is a standalone tool, that can be used independently of any IDE. But it can be very convenient to use it with your favorite IDE, for instance start it by double-clicking on an FXML file, or run samples delivered with Scene Builder.  I'm sharing here with you few tweaks that I had to do for a better integration. Scene Builder 1.1 Developer Preview should be installed before doing the tweaks. The steps below have been done on Windows 7. It should be very similar on both Mac OS and Linux. Please tell me if you find any issue on one of these 2 platforms. Netbeans 7.3 Netbeans 7.3 can be downloaded from here. Creating a New FXML project Part of the JavaFx projects, Netbeans allows to create a 'JavaFX FXML Application', that creates a JavaFx project based on FXML description. The FXML file will be editable with Scene Builder. Starting Scene Builder from Netbeans If SceneBuilder 1.1 is installed, Netbeans will discover it automatically.In case of issue, one can open the Options panel, Java section, JavaFx tab. Scene Builder home should appear here. You can then either Open the FXML file with Scene Builder, or edit it with the Netbeans FXML editor : When 'Open' is selected, Scene Builder appears on top of the Netbeans window : When 'Edit' is selected, the FXML is opened in the Netbeans FXML editor, which support syntax highlighting and completion : Using Scene Builder Samples Scene Builder provides Netbeans projects, that can be opened/run directly : Eclipse 4.2.1 + e(fx)clipse 0.1.1 JavaFX integration in Eclipse has been done with the e(fx)clipse plugin. A distribution bundle containing Eclipse and e(fx)clipse is provided here. Creating New FXML project All the JavaFX-related projects can be found in 'Other' section : First create a new JavaFX project: Enter the project name (Test here). JavaFX delivery will be found in the JRE. Then, create a 'New FXML Document': Enter the FXML file name (Sample here). You may also want to choose the FXML document root element (AnchorPane by default). Dynamic root is for advanced users which want to manage custom types. Starting Scene Builder from Eclipse Once created, you can then either Open the FXML file with Scene Builder, or Open it in the Eclipse FXML editor : Using Scene Builder Samples from Eclipse To use Scene Builder samples, first create a new JavaFX Project (from 'Other' section): Then, on the next panel, 'Link additionnal source': … and select the source directory of a Scene Builder example : HelloWorld here (the parent directory of the java package should be selected).Then, choose a 'Folder name' for your sample: You can now run the Scene Builder example by right-clicking the Main.java source file: IntelliJ IDEA 11.1.3 IntelliJ IDEA Community Edition can be downloaded from here. IntelliJ IDEA has no specific JavaFX integration. Creating New IntelliJ project from existing source Since IntelliJ has no JavaFX project knowledge, we are using the Scene Builder samples as a starting point. We are going to create a new Java project from the HelloWorld sample: Then, click twice on 'Next' (nothing to change), then 'Finish'. The 'HelloWorld' project is created. Starting Scene Builder from IntelliJ We need to tell the IDE that FXML files are opened with an external application. Then, the OS file association will be used. To do this, open the File->Settings panel. Then, select 'File Types' and 'Files opened in associated applications'. And add a new wildcard : '*.fxml' : Now, from the HelloWorld project, you can double-click on HelloWorld.fxml : Scene Builder window appears on top of the IntelliJ window : Using Scene Builder Samples from IntelliJ We need to tell IntelliJ that the fxml files must be copied in the build directory.To do that, from the HelloWorld directory, open the 'idea' section, and edit the 'compiler.xml' file. We need to add an '*.fxml' entry: Then, you can run the sample from HelloWorld project, by right-clicking the Main class:

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• SQL Developer: Describe versus Ctrl+Click to Open Database Objects

  - by thatjeffsmith

  In yesterday’s post I talked about you could use SQL Developer’s Describe (SHIFT+F4) to open a PL/SQL Package at your cursor. You might get an error if you try to describe this… If you actually try to describe the package as you see it in the above screenshot, you’ll get an error: Doh! I neglected to say in yesterday’s post that I was highlighting the package name before I hit SHIFT+F4. This works just fine, but it will work even better in our next release as we’ve fixed this issue. Until then, you can also try the Ctrl+Hover with your mouse. For PL/SQL calls you can open the source immediately based on what you’re hovering over with your mouse cursor. You could try this with “dbms_output.put_line(” too Ctrl+Click, It’s not just for PL/SQL If you don’t like the floating describe windows you get when you do a SHIFT+F4 on a database object, the ctrl+click will work too. Instead of opening a normal ‘hover’ panel, you’ll be taken directly to the object editor for that table, view, etc. Go ahead and try it right now. Paste this into your worksheet, then ctrl+click with your mouse over the table name: select * from scott.emp And now you know, the rest of the story.

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• RPi and Java Embedded GPIO: Writing Java code to blink LED

  - by hinkmond

  So, you've followed the previous steps to install Java Embedded on your Raspberry Pi ?, you went to Fry's and picked up some jumper wires, LEDs, and resistors ?, you hooked up the wires, LED, and resistor the the correct pins ?, and now you want to start programming in Java on your RPi? Yes? ???????! OK, then... Here we go. You can use the following source code to blink your first LED on your RPi using Java. In the code you can see that I'm not using any complicated gpio libraries like wiringpi or pi4j, and I'm not doing any low-level pin manipulation like you can in C. And, I'm not using python (hell no!). This is Java programming, so we keep it simple (and more readable) than those other programming languages. See: Write Java code to do this In the Java code, I'm opening up the RPi Debian Wheezy well-defined file handles to control the GPIO ports. First I'm resetting everything using the unexport/export file handles. (On the RPi, if you open the well-defined file handles and write certain ASCII text to them, you can drive your GPIO to perform certain operations. See this GPIO reference). Next, I write a "1" then "0" to the value file handle of the GPIO0 port (see the previous pinout diagram). That makes the LED blink. Then, I loop to infinity. Easy, huh? import java.io.* /* * Java Embedded Raspberry Pi GPIO app */ package jerpigpio; import java.io.FileWriter; /** * * @author hinkmond */ public class JerpiGPIO { static final String GPIO_OUT = "out"; static final String GPIO_ON = "1"; static final String GPIO_OFF = "0"; static final String GPIO_CH00="0"; /** * @param args the command line arguments */ public static void main(String[] args) { FileWriter commandFile; try { /*** Init GPIO port for output ***/ // Open file handles to GPIO port unexport and export controls FileWriter unexportFile = new FileWriter("/sys/class/gpio/unexport"); FileWriter exportFile = new FileWriter("/sys/class/gpio/export"); // Reset the port unexportFile.write(GPIO_CH00); unexportFile.flush(); // Set the port for use exportFile.write(GPIO_CH00); exportFile.flush(); // Open file handle to port input/output control FileWriter directionFile = new FileWriter("/sys/class/gpio/gpio"+GPIO_CH00+"/direction"); // Set port for output directionFile.write(GPIO_OUT); directionFile.flush(); /*--- Send commands to GPIO port ---*/ // Opne file handle to issue commands to GPIO port commandFile = new FileWriter("/sys/class/gpio/gpio"+GPIO_CH00+"/value"); // Loop forever while (true) { // Set GPIO port ON commandFile.write(GPIO_ON); commandFile.flush(); // Wait for a while java.lang.Thread.sleep(200); // Set GPIO port OFF commandFile.write(GPIO_OFF); commandFile.flush(); // Wait for a while java.lang.Thread.sleep(200); } } catch (Exception exception) { exception.printStackTrace(); } } } Hinkmond

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