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  • Vacations on Rodrigues 2014

    And now something completely different compared to the usual technical or community related articles here on this blog. Yes, this time I'm writing some lines on my (and my family's) activities during our long weekend stay on Rodrigues. So, please bear with me, it's eventually a bit more personal... Grab a soda, some popcorn and a cosy place to continue to read. var googleAlbumLink = "https://plus.google.com/photos/117698191428446859536/albums/6047895311458281985"; //optional----------------------- var mySlideWidth = 580; var mySlideHeight = 340; var mySlideDelay = 7000; //delay in milliseconds Special promotions during school holidays Originally, our children started to ask more frequently about going on the plane again. Obviously, after their aunty from Germany was around during May, they were really eager to travel again. So, we decided that it might be a great opportunity to book some vacations during their school holidays. And just in time the local hotels and hotel groups started to advertise their special promotions for citizens and residents. After collecting multiple brochures over several days, we got attracted by various hotel packages on Rodrigues - most interestingly the expenses for the stay and flight ticket were less compared to other resorts here on the main island. As we have been to Rodrigues already back in 2008, we followed up on this idea and got in touch with a couple travel agencies. Well, I have to report that you should be really careful about the promotions from some of them. We had a very negative experience with Shamal Travel Agency in Quatre Bornes regarding their adverts and the actual price levels and age definition for children. Please, stay away from them if you are interested in transparent cost and services. Anyway, after some arrangements with two other close families we managed to confirm our stay at the Cotton Bay Hotel in Rodrigues. Given the fact that we already stayed there, and the hotel has been renovated recently, and it is under new management all looked very promising and relaxed for our vacation. Counting the days... As we already booked in July our children were counting down the days. And it got more interesting as soon as they were on school holidays finally. Well, the day arrived and waking them up at 2:30 hrs wasn't a problem after all. Quite the opposite it was fascinating for us parents to watch them waiting for the transport and later on during the airport transfer. Despite the early hours both didn't fall asleep and it was all so exciting. We are taking the plane! Well organised by the Cotton Bay Hotel Honestly, it was a breeze and a smooth ride during our stay at the hotel. From the airport transfer, the cleanliness of our bungalow, the organisation of our day trips, and the SPA - all very well and enjoyable. The children had great fun, and although it was a bit too windy to plunge into the pool they had a lot of fun with other activities on the beach and at the Kid's Club. Oh, and we had our private petting zoo with cows, sheep and goats just close to the terrace. Some of us went to check out the SPA facilities and I have to admit that the services regarding Hammam and Sauna are better than at some other hotels in Mauritius. I don't know after how many months or years I was once again enjoying a very hot sauna. Little draw-back but nothing to worry about... There is no cold water or at least ice cubes to cool down the body, but hey there was a nice breeze coming over the hills. Some day trips to mention Based on a friend's recommendation we walked to a "restaurant" called Chez Solange & Robert. Hahaha, restaurant is widely stretched in this case, as we enjoyed a great BBQ with fresh lobster, whole fish, and pieces of chicken breast in an open cottage. Just some wooden structure covered with dried palm leaves on the roof - island feeling pure! The other day we went to the Giant Tortoise & Cave Reserve Francois Leguat to observe the giant Aldabra turtles and to visit the Grande Caverne. The biggest limestone cave on the island. Compared to our last visit this was a novelty after checking out the Caverne Partate. The formations of stalactites and stalagmites are very impressive and imaginative. Our guide had lots of funny terms and despite the low light conditions the kids had a great time wandering around on the narrow wooden paths and stairs. And last but not least, we decided to check out the Tyrodrig zip lines... Everyone was allowed to join the trip through the air, and our little ones stayed close to our field guides. But finally went on their own on the very last traversal. Puuuh, it was astounishing to glide over the valley, and for sure something to repeat next time. Impressions of our vacation on Rodrigues 2014   Next stay has been discussed already Oh yes, Rodrigues baby! We are going to come again! Tentative dates have been discussed already and now it's up to us to earn enough our next holiday on that wonderful remote piece of paradise. Eventually, a little bit longer than this time. We'll see...

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  • Victor Grazi, Java Champion!

    - by Tori Wieldt
    Congratulations to Victor Grazi, who has been made a Java Champion! He was nominated by his peers and selected as a Java Champion for his experience as a developer, and his work in the Java and Open Source communities. Grazi is a Java evangelist and serves on the Executive Committee of the Java Community Process, representing Credit Suisse - the first non-technology vendor on the JCP. He also arranges the NY Java SIG meetings at Credit Suisse's New York campus each month, and he says it has been a valuable networking opportunity. He also is the spec lead for JSR 354, the Java Money and Currency API. Grazi has been building real time financial systems in Java since JDK version 1.02! In 1996, the internet was just starting to happen, Grazi started a dot com called Supermarkets to Go, that provided an on-line shopping presence to supermarkets and grocers. Grazi wrote most of the code, which was a great opportunity for him to learn Java and UI development, as well as database management. Next, he went to work at Bank of NY building a trading system. He studied for Java certification, and he noted that getting his certification was a game changer because it helped him started to learn the nuances of the Java language. He has held other development positions, "You may have noticed that you don't get as much junk mail from Citibank as you used to - that is thanks to one of my projects!" he told us. Grazi joined Credit Suisse in 2005 and is currently Vice President on the central architecture team. Grazi is proud of his open source project, Java Concurrent Animated, a series of animations that visualize the functionality of the components in the java.util.concurrent library. "It has afforded me the opportunity to speak around the globe" and because of it, has discovered that he really enjoys doing public presentations. He is a fine addition to the Java Champions program. The Java Champions are an exclusive group of passionate Java technology and community leaders who are community-nominated and selected under a project sponsored by Oracle. Nominees are named and selected through a peer review process. Java Champions get the opportunity to provide feedback, ideas, and direction that will help Oracle grow the Java Platform. This interchange may be in the form of technical discussions and/or community-building activities with Oracle's Java Development and Developer Program teams.

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  • Discover How to Deliver Measurable Business Value from your HCM Strategy

    - by Jay Richey, HCM Product Marketing
    Join our live Webcast on Wednesday, July 13 to learn how to fine tune your HCM strategy and better utlize your Oracle HCM investment.  In this session you'll learn how to access, analyze and act on information from multiple sources to ensure that all workforce decisions are focused on meeting overall business objectives. Date:Wednesday, July 13, 2011Time:10:00 a.m. PT / 1:00 p.m. ET Register now!

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  • So long Oracle ...

    - by arungupta
    ... and thanks for all the fish! This Friday (October 18, 2013) is my last day at Oracle. After Publishing almost 1400 blog entries with 5500+ comments on them Working in the Java EE team since inception Visiting 35+ countries and several cities around the world Speaking at all major Java conferences and lots of Java User Groups 15-year alumni of JavaOne as staff Meeting and working with best of the best in the Java community Most importantly having lots of fun Its time for me to move on! No new blog entries will be posted on this blog. Feel free to subscribe to The Aquarium for latest updates on Java EE and GlassFish. I'll continue to publish all the excellent content that you've been used to at blog.arungupta.me now onwards. Read my new blog to learn about my new adventures! Here are some of the conference badges collected over the past years ... And the cities visited ... View Cities Visited by "Miles To Go..." in a larger map The comments on this blog are disabled as I'll not be able to respond to them. Feel free to leave comments on the new blog and I'd love to follow up with you there. Thank you very much for all the support that has been shown on this blog. I'd like to conclude with a Hindi song that I've been humming for the past few days now ... Abhi alvida mat kaho doston ... Na jaane kahan phir mulaqaat ho ... Kyonki ... Beete huye lamhon ki kasak saath to hogi ... Khawabon mein hi ho chahe mulaqaat to hogi ... For my non-Hindi readers, here is my paraphrased meaning ... Don't say goodbye yet my friends ... We'll likely meet somewhere else ... Because ... We'll always have the memories of the wonderful time spent together ... May be in dreams but we will meet again ... With that, over and out, and see you at blog.arungupta.me!

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  • Unlock the full potential of Oracle Retail with Oracle Retail Consulting

    - by user801960
    In this video, Maria Porretta, Engagement Director, introduces Oracle Retail Consulting which supports Oracle Retail customers by unlocking the potential of the software solutions they are utilising. Oracle Retail Consulting comprises of a global team of over 300 consultants, 70 of which are EMEA based. 90% of the team have a retail background in either IT or business, ensuring true industry expertise and maximum business benefit. Oracle Retail Consulting offers two primary streams of service; design authority which looks at analysis and design to ensure a guided process through to implementation, and delivery ownership which runs throughout the implementation process. Further information is available on our website regarding Oracle Retail Consulting.

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  • Boston: Free Java Developer Event March 3rd!

    - by Jacob Lehrbaum
    Attention Boston area developers!  Oracle has been running a series of free one-day Java Developer events in the US, Europe, and Asia since last November, and on March 3rd, this highly popular series is coming to the Westin Copley Place in Boston.  The Java Developer Day will include four tracks of sessions and hands-on-labs designed for developers interested in Server, Desktop, Embedded, and core Java SE platform topics.  Technologies covered include Java EE, Java ME and Java SE (including the JDK).  From the event page: Come to this free event if you are interested in:Evaluating the Java platformUsing other languages on the JVMBuilding server side JavaConstructing Rich Web or Desktop ApplicationsUnderstanding the JVM and its built in diagnosticsMaking Smart Devices even smarterCheck out the event page to read more and/or register.  The event is free, but space is limited so register today!

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  • Oredev 2011 Trip Report

    - by arungupta
    Oredev had its seventh annual conference in the city of Malmo, Sweden last week. The name "Oredev" signifies to the part that Malmo is connected with Copenhagen with Oresund bridge. There were about 1000 attendees with several speakers from all over the world. The first two days were hands-on workshops and the next three days were sessions. There were different tracks such as Java, Windows 8, .NET, Smart Phones, Architecture, Collaboration, and Entrepreneurship. And then there was Xtra(ck) which had interesting sessions not directly related to technology. I gave two slide-free talks in the Java track. The first one showed how to build an end-to-end Java EE 6 application using NetBeans and GlassFish. The complete instructions to build the application are explained in detail here. This 3-tier application used Java Persistence API, Enterprsie Java Beans, Servlet, Contexts and Dependency Injection, JavaServer Faces, and Java API for RESTful Services. The source code built during the application can be downloaded here (LINK TBD). The second session, slide-free again, showed how to take a Java EE 6 application into production using GlassFish cluster. It explained: Create a 2-instance GlassFish cluster Front-end with a Web server and a load balancer Demonstrate session replication and fail over Monitor the application using JavaScript The complete instructions for this session are available here. Oredev has an interesting way of collecting attendee feedback. The attendees drop a green, yellow, or red card in a bucket as they walk out of the session. Not everybody votes but most do. Other than the instantaneous feedback provided on twitter, this mechanism provides a more coarse grained feedback loop as well. The first talk had about 67 attendees (with 23 green and 7 yellow) and the second one had 22 (11 green and 11 yellow). The speakers' dinner is a good highlight of the conference. It is arranged in the historic city hall and the mayor welcomed all the speakers. As you can see in the pictures, it is a very royal building with lots of history behind it. Fortunately the dinner was a buffet with a much better variety unlike last year where only black soup and geese were served, which was quite cultural BTW ;-) The sauna in 85F, skinny dipping in 35F ocean and alternating between them at Kallbadhus is always very Swedish. Also spent a short evening at a friend's house socializing with other speaker/attendees, drinking Glogg, and eating Pepperkakor.  The welcome packet at the hotel also included cinnamon rolls, recommended to drink with cold milk, for a little more taste of Swedish culture. Something different at this conference was how artists from Image Think were visually capturing all the keynote speakers using images on whiteboards. Here are the images captured for Alexis Ohanian (Reddit co-founder and now running Hipmunk): Unfortunately I could not spend much time engaging with other speakers or attendees because was busy preparing a new hands-on lab material. But was able to spend some time with Matthew Mccullough, Micahel Tiberg, Magnus Martensson, Mattias Karlsson, Corey Haines, Patrick Kua, Charles Nutter, Tushara, Pradeep, Shmuel, and several other folks. Here are a few pictures captured from the event: And the complete album here: Thank you Matthias, Emily, and Kathy for putting up a great show and giving me an opportunity to speak at Oredev. I hope to be back next year with a more vibrant representation of Java - the language and the ecosystem!

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  • Oredev 2011 Trip Report

    - by arungupta
    Oredev had its seventh annual conference in the city of Malmo, Sweden last week. The name "Oredev" signifies to the part that Malmo is connected with Copenhagen with Oresund bridge. There were about 1000 attendees with several speakers from all over the world. The first two days were hands-on workshops and the next three days were sessions. There were different tracks such as Java, Windows 8, .NET, Smart Phones, Architecture, Collaboration, and Entrepreneurship. And then there was Xtra(ck) which had interesting sessions not directly related to technology. I gave two slide-free talks in the Java track. The first one showed how to build an end-to-end Java EE 6 application using NetBeans and GlassFish. The complete instructions to build the application are explained in detail here. This 3-tier application used Java Persistence API, Enterprsie Java Beans, Servlet, Contexts and Dependency Injection, JavaServer Faces, and Java API for RESTful Services. The source code built during the application can be downloaded here (LINK TBD). The second session, slide-free again, showed how to take a Java EE 6 application into production using GlassFish cluster. It explained: Create a 2-instance GlassFish cluster Front-end with a Web server and a load balancer Demonstrate session replication and fail over Monitor the application using JavaScript The complete instructions for this session are available here. Oredev has an interesting way of collecting attendee feedback. The attendees drop a green, yellow, or red card in a bucket as they walk out of the session. Not everybody votes but most do. Other than the instantaneous feedback provided on twitter, this mechanism provides a more coarse grained feedback loop as well. The first talk had about 67 attendees (with 23 green and 7 yellow) and the second one had 22 (11 green and 11 yellow). The speakers' dinner is a good highlight of the conference. It is arranged in the historic city hall and the mayor welcomed all the speakers. As you can see in the pictures, it is a very royal building with lots of history behind it. Fortunately the dinner was a buffet with a much better variety unlike last year where only black soup and geese were served, which was quite cultural BTW ;-) The sauna in 85F, skinny dipping in 35F ocean and alternating between them at Kallbadhus is always very Swedish. Also spent a short evening at a friend's house socializing with other speaker/attendees, drinking Glogg, and eating Pepperkakor.  The welcome packet at the hotel also included cinnamon rolls, recommended to drink with cold milk, for a little more taste of Swedish culture. Something different at this conference was how artists from Image Think were visually capturing all the keynote speakers using images on whiteboards. Here are the images captured for Alexis Ohanian (Reddit co-founder and now running Hipmunk): Unfortunately I could not spend much time engaging with other speakers or attendees because was busy preparing a new hands-on lab material. But was able to spend some time with Matthew Mccullough, Micahel Tiberg, Magnus Martensson, Mattias Karlsson, Corey Haines, Patrick Kua, Charles Nutter, Tushara, Pradeep, Shmuel, and several other folks. Here are a few pictures captured from the event: And the complete album here: Thank you Matthias, Emily, and Kathy for putting up a great show and giving me an opportunity to speak at Oredev. I hope to be back next year with a more vibrant representation of Java - the language and the ecosystem!

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  • Not Happy With the Monochrome Visual Studio 11 Beta UI

    - by Ken Cox [MVP]
    I can’t wait for a third-party to come out with tools to return some colour to the flat, monochrome look of Visual Studio 11 (beta). What bugs me most are the icons. I feel like a newbie when I have to squint and analyze the shape of icons on the debugging toolbar just to get the one I want. (Fortunately, the meddlers didn’t mess with the keyboard commands so I’m not totally lost.) Not sure what usability studies told MS that bland is better. Maybe it is for most people, but not for me.  Gray, shades of gray and black. Ugh. And don’t get me started on the stupidity of using all-caps for window titles. Who approved that? I see that there’s a UserVoice poll on the topic (http://visualstudio.uservoice.com/forums/121579-visual-studio/suggestions/2623017-add-some-color-to-visual-studio-11-beta) but I doubt that anything will change Microsoft’s opinion in time for the release. Once a product gets to a stable beta, most non-crashing stuff gets pushed to the next version. I hope I’m proved wrong. Fortunately, Visual Studio is quite customizable. Unless ‘Bland’ is hard-coded, some registry tweaks and a collection of replacement icons should allow dissenters like me back to productivity. BTW, other than hating the UI, VS 11 beta is working quite well for me on a .NET 4 project.Note: Although my username for the ASP.NET domain includes the letters "[MVP]", I'm no longer an MVP. Apparently it's nearly impossible to change a username in the system. My apologies for the misleading identifier but I tried to have it changed without success.

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  • Inverted schedctl usage in the JVM

    - by Dave
    The schedctl facility in Solaris allows a thread to request that the kernel defer involuntary preemption for a brief period. The mechanism is strictly advisory - the kernel can opt to ignore the request. Schedctl is typically used to bracket lock critical sections. That, in turn, can avoid convoying -- threads piling up on a critical section behind a preempted lock-holder -- and other lock-related performance pathologies. If you're interested see the man pages for schedctl_start() and schedctl_stop() and the schedctl.h include file. The implementation is very efficient. schedctl_start(), which asks that preemption be deferred, simply stores into a thread-specific structure -- the schedctl block -- that the kernel maps into user-space. Similarly, schedctl_stop() clears the flag set by schedctl_stop() and then checks a "preemption pending" flag in the block. Normally, this will be false, but if set schedctl_stop() will yield to politely grant the CPU to other threads. Note that you can't abuse this facility for long-term preemption avoidance as the deferral is brief. If your thread exceeds the grace period the kernel will preempt it and transiently degrade its effective scheduling priority. Further reading : US05937187 and various papers by Andy Tucker. We'll now switch topics to the implementation of the "synchronized" locking construct in the HotSpot JVM. If a lock is contended then on multiprocessor systems we'll spin briefly to try to avoid context switching. Context switching is wasted work and inflicts various cache and TLB penalties on the threads involved. If context switching were "free" then we'd never spin to avoid switching, but that's not the case. We use an adaptive spin-then-park strategy. One potentially undesirable outcome is that we can be preempted while spinning. When our spinning thread is finally rescheduled the lock may or may not be available. If not, we'll spin and then potentially park (block) again, thus suffering a 2nd context switch. Recall that the reason we spin is to avoid context switching. To avoid this scenario I've found it useful to enable schedctl to request deferral while spinning. But while spinning I've arranged for the code to periodically check or poll the "preemption pending" flag. If that's found set we simply abandon our spinning attempt and park immediately. This avoids the double context-switch scenario above. One annoyance is that the schedctl blocks for the threads in a given process are tightly packed on special pages mapped from kernel space into user-land. As such, writes to the schedctl blocks can cause false sharing on other adjacent blocks. Hopefully the kernel folks will make changes to avoid this by padding and aligning the blocks to ensure that one cache line underlies at most one schedctl block at any one time.

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  • XSLT is not the solution you're looking for

    - by Jeff
    I was very relieved to see that Umbraco is ditching XSLT as a rendering mechanism in the forthcoming v5. Thank God for that. After working in this business for a very long time, I can't think of any other technology that has been inappropriately used, time after time, and without any compelling reason.The place I remember seeing it the most was during my time at Insurance.com. We used it, mostly, for two reasons. The first and justifiable reason was that it tweaked data for messaging to the various insurance carriers. While they all shared a "standard" for insurance quoting, they all had their little nuances we had to accommodate, so XSLT made sense. The other thing we used it for was rendering in the interview app. In other words, when we showed you some fancy UI, we'd often ditch the control rendering and straight HTML and use XSLT. I hated it.There just hasn't been a technology hammer that made every problem look like a nail (or however that metaphor goes) the way XSLT has. Imagine my horror the first week at Microsoft, when my team assumed control of the MSDN/TechNet forums, and we saw a mess of XSLT for some parts of it. I don't have to tell you that we ripped that stuff out pretty quickly. I can't even tell you how many performance problems went away as we started to rip it out.XSLT is not your friend. It has a place in the world, but that place is tweaking XML, not rendering UI.

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  • XML ou JSON? (pt-BR)

    - by srecosta
    Depende.Alguns de nós sentem a necessidade de escolher uma nova técnica / tecnologia em detrimento da que estava antes, como uma negação de identidade ou como se tudo que é novo viesse para substituir o que já existe. Chega a parecer, como foi dito num dos episódios de “This Developer’s Life”, que temos de esquecer algo para termos espaço para novos conteúdos. Que temos de abrir mão.Não é bem assim que as coisas funcionam. Eu vejo os colegas abraçando o ASP.NET MVC e condenando o ASP.NET WebForms como o anticristo. E tenho observado a mesma tendência com o uso do JSON para APIs ao invés de XML, como se o XML não servisse mais para nada. Já vi, inclusive, módulos sendo reescritos para trabalhar com JSON, só porque “JSON é melhor” ™.O post continua no meu blog: http://www.srecosta.com/2012/11/22/xml-ou-json/Grande abraço,Eduardo Costa

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  • Java EE 7 Launch Replay

    - by arungupta
    Java EE 7 was released final on Jun 12, 2013. A complete replay of Strategy and Technical Keynote can be seen below: All the Technical Breakout sessions are now available on GlassFishVideos@YouTube and can be viewed in the following playlist: Ready to try out Java EE 7 ? Download Binaries Java EE 7 SDK GlassFish Server Open Source Edition 4.0 Tools NetBeans 7.3.1 Eclipse Kepler Maven Coordinates Docs Java EE 7 Whitepaper Java EE 7 Tutorial (html pdf) First Cup Sample Application Java EE 7 Hands-on Lab Javadocs (online download) Specifications All-in-one GlassFish Documentation Bundle Do you feel enabled and empowered to start building Java EE 7 applications ? Just download Java EE 7 SDK that contains GlassFish Server Open Source Edition 4.0, tutorial, samples, documentation and much more. Enjoy!

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  • Java Embedded @ JavaOne

    - by sasa
    2012?9?30??10?4?????????????????JavaOne????????????????????????????????Java?????????????????????????????JavaOne???10?3??4??????????????????????????·????????Java Embedded @ JavaOne??????????? JavaOne???????????JavaOne Embedded @ JavaOne??????????????????????????????????????Java SE Embedded?????????????????????????Java??????????????????????????? ????????????Java Embedded @ JavaOne??????9?7???$595?9?28???$795??????$995????????????????????JavaOne??????????????????100??????????

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  • Network and Storage Devices Throughput Chart

    - by zroiy
    With all of the different storage and network devices that surround our day to day life, understanding these devices data transfer speeds can be somewhat confusing. Think about trying to identify your weakest link in the a chain that starts with an external USB hard drive (or a flash drive) that's connected to a 802.11g wifi router, can you quickly come up with an answer of where's the bottle neck in that chain , is it the router or the storage devices ? . Well, the following chart should give you an idea understanding different devices, protocols and interfaces maximum throughput speeds. Though these numbers can fluctuate (mostly for worse, but sometimes for the better) due to different kind of factors such as OS overhead (or caching and optimization) , multiple users or processes and so on , the chart can still serve to provide basic information on the theoretical throughput different devices and protocols can get to.. Enjoy.  Link to the full size chart   References:http://en.wikipedia.org/wiki/Sata#SATA_revision_1.0_.28SATA_1.5_Gbit.2Fs.29http://en.wikipedia.org/wiki/Usbhttp://en.wikipedia.org/wiki/Usb_3http://en.wikipedia.org/wiki/802.11http://mashable.com/2011/09/21/fastest-download-speeds-infographic/http://en.wikipedia.org/wiki/Thunderbolt_(interface)http://www.computerworld.com/s/article/9220434/Thunderbolt_vs._SuperSpeed_USB_3.0  Icons:http://openiconlibrary.sourceforge.net/gallery2/?./Icons/devices/drive-harddisk-3.png      

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  • Twitte API for Java - Hello Twitter Servlet (TOTD #178)

    - by arungupta
    There are a few Twitter APIs for Java that allow you to integrate Twitter functionality in a Java application. This is yet another API, built using JAX-RS and Jersey stack. I started this effort earlier this year and kept delaying to share because wanted to provide a more comprehensive API. But I've delayed enough and releasing it as a work-in-progress. I'm happy to take contributions in order to evolve this API and make it complete, useful, and robust. Drop a comment on the blog if you are interested or ping me at @arungupta. How do you get started ? Just add the following to your "pom.xml": <dependency> <groupId>org.glassfish.samples</groupId> <artifactId>twitter-api</artifactId> <version>1.0-SNAPSHOT</version></dependency> The implementation of this API uses Jersey OAuth Filters for authentication with Twitter and so the following dependencies are required if any API that requires authentication, which is pretty much all the APIs ;-) <dependency> <groupId>com.sun.jersey.contribs.jersey-oauth</groupId>     <artifactId>oauth-client</artifactId>     <version>${jersey.version}</version> </dependency> <dependency>     <groupId>com.sun.jersey.contribs.jersey-oauth</groupId>     <artifactId>oauth-signature</artifactId>     <version>${jersey.version}</version> </dependency> Once the dependencies are added to your project, inject Twitter  API in your Servlet (or any other Java EE component) as: @Inject Twitter twitter; Here is a simple non-secure invocation of the API to get you started: SearchResults result = twitter.search("glassfish", SearchResults.class);for (SearchResultsTweet t : result.getResults()) { out.println(t.getText() + "<br/>");} This code returns the tweets that matches the query "glassfish". The source code for the complete project can be downloaded here. Download it, unzip, and mvn package will build the .war file. And then deploy it on GlassFish or any other Java EE 6 compliant application server! The source code for the API also acts as the javadocs and can be checked out from here. A more detailed sample using security and several other API from this library is coming soon!

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  • @CodeStock 2012 Review: Rob Gillen ( @argodev ) - Anatomy of a Buffer Overflow Attack

    Anatomy of a Buffer Overflow AttackSpeaker: Rob GillenTwitter: @argodevBlog: rob.gillenfamily.net Honestly, this talk was over my head due to my lack of knowledge of low level programming, and I think that most of the other attendees would agree. However I did get the basic concepts that we was trying to get across. Fortunately most high level programming languages handle most of the low level concerns regarding preventing buffer overflow attacks. What I got from this talk was to validate all input data from external sources.

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  • Working with Legacy code #5: The blackhole.

    - by andrewstopford
    Someone creates a class or series of classes for something, the classes are big in size with large complicated methods. The effort is a sea of technical debt for the entire team but in the thick of the daily chaos it is lost. With out the coder talking to the team, with no team code policy and no code reviews (and action points) it remains. Pretty soon the team forget about that code. A few weeks\months\years goes by, some of the team may have left, some may remain but business asks for the team to add to that code. The team is now looking at a black hole, no one knows how it works, what it does, what it is for, it is a smelly hell hole and the deadline is fast approaching. The team now tries to change the code, with no approach at unit tests or refactoring in fear of breaking the black hole the team do just that and the business have just lost money. If you are faced with a black hole you need to look back over my series, even a black hole in what might seem like a clean unit tested application. Don't be fooled into thinking that legacy code does not apply to your code base.  The next stage is don't let blackholes in your codebase. Effective code reviews, team communication and good overal team coding policies will really help. Even if you are faced with a deadline do not let them appear, stop, take stock, what can be done and who can help. If you allow them through they will grow and grow and grow and the technical debt will hit you like a tidal wave soon enough,.  

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  • JavaOne 2012 Call for Papers

    - by Tori Wieldt
    JavaOne 2012 is happening Sept. 30-Oct 4 in San Francisco. The Call For Papers for this conference is now open. Java Evangelist Arun Gupta, who was on one of the selection committees and will be again this year, provided some great tips for submission (and a peek into the submission process): JavaOne is a technology-focused conference so any product, marketing or seemingly marketish talk are put at the bottom of the list. Oracle Open World and Oracle Develop are better options for submitting product specific talks. Make your title catchy. Remember the attendees are more likely to read the abstract if they like the title. We try our best to recategorize the talk to a different track if it needs to but please ensure that you are filing in the right track to have all the right eyeballs looking at it. Also, it does not hurt marking an alternate track if your talk meets the criteria. Make sure to coordinate within your team before the submission - multiple sessions from the same team or company does not ensure that the best speaker is picked. In such case we rely upon your "google presence" and/or review committee's prior knowledge of the speaker. The reviewers may not know you or your product at all and you get 750 characters to pitch your idea. Make sure to use all of them, to the last 750th character. Make sure to read your abstract multiple times to ensure that you are giving all the relevant information ? Think through your presentation and see if you are leaving out any important aspects. Also look if the abstract has any redundant information that will not required by the reviewers. There are additional sections that allow you to share information about the speaker and the presentation summary. Use them to blow the horn about yourself and any other relevant details. Please don't say "call me at xxx-xxx-xxxx to find out the details." :-) The tracks this year are: Core Java Platform Development Tools and Techniques Emerging Langauges on the JVM Enterprise Services Architectures and the Cloud Java EE Web Profile and Platform Technologies Java ME, Java Card, Embedded, and Devices Java FX and Rich User Experiences IMPORTANT: Submit your proposal as soon as possible, the the Call for Papers closes April 9th, a mere three weeks away!  Follow these channels to get the latest news about #JavaOne 2012.  originally posted on blogs.oracle.com/javaone

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  • Customer Spotlight - CSX: Charles Pack

    - by cwarticki
    A couple of weeks ago, I had the distinct privilege of facilitating a training session with CSX.  CSX is a wonderful customer.  They've been a dedicated Oracle customer for many years. They have quite an extensive Oracle footprint including Server Technologies, Fusion Middleware and E-Business Suite products.  They also utilize Oracle's Solution Support Center offering from Advanced Customer Services, for their Database products. I'm always on the lookout for Oracle gems and I discovered one at CSX. Before my session began, I met with Charles Pack.  In my view, he's an Oracle guru.  Don't take my word for it, just read any of the books he's authored or co-authored and the one soon to be released.  Just looking at his bookshelf, I saw titles going back to Oracle 7 & 8, as well as a Solaris 2.x book.  Remember those?   Anyway, Charles is a technologist and a manager (and wears numerous other hats too).  I had a wonderful time talking with Charles and getting to know him.  What do you consider keys to your personal success?  Inability to quit.  When I decide that I will accomplish something, I will, regardless of the nature of the challenge.  Never quitting means a perpetual drive for change and progress and setting examples for others to follow.  The reason I write OCP books is because I can provide a path for people to improve their knowledge of the product, gain a certification, and reach their professional goals. What do you consider the most important part of your job?  Negotiations.  We all have competing goals, incentives and finite resources, but we should all have the same common goal – progress.  So finding the way for all parties to progress is the most important thing we do. What is the most important part of your relationship with Oracle?  Oracle provides solutions – not just products - that are critical to our business success.  So continuous communication regarding education, services, product roadmaps and shared goals is the most important part of our ongoing relationship. Charles is an Oracle loyalist.  His career has been based on using our products and he's passionate about the products he works with.  You can tell, just by talking with him.  I appreciate Charles and other customers like him.  He's an expert in his field and an Oracle evangelist.  He is an asset to CSX and to their success.  He's an advocate for Oracle and an asset to our customers.  You can also friend and follow Charles on Twitter @charlesapack It was a pleasure meeting you Charles! -Chris Warticki Global Customer Management

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  • Welcome to the Oracle Retail International Blog

    - by sarah.taylor(at)oracle.com
    Welcome to the first post of the new Oracle Retail International Blog. Retail is an international business and today's successful retailers view themselves in the context of a global market. A niche fashion business in Tokyo will learn marketing strategies from the luxury brands of Milan, an independent grocer in Oslo will source the same global brands as a supermarket in Oklahoma, and every retailer in the world will measure their multi-channel operation against the international e-commerce giant Amazon.  Why? Because today's customer is a global customer with unparalleled expectations on choice, price and service. Today's consumers have access to more information on retail than ever before. Technology allows people to shop from their home, their office or from the phone in their pocket, wherever they are and at whatever time suits them. Customers are using the web to search for products and promotions. They are also using the web to develop their voice in commenting on products and services that have delighted or disappointed. In an information rich industry, this customer element creates a new world of data. The best retailers are developing eagle eyes for reading customer activity and turning it into profitable decisions. Ultimately, whether you choose to compete or shop on price, service, product innovation, excellent operations or all of the above - the international world of retail has become an inspiration for all - retailer and consumer alike.  Retail as an industry is growing and diversifying at a faster rate than ever before. Yet it is still the customer who picks the winners and the losers on the retail field. Economic circumstances transform the rules, but it is still the customer who dictates the game, the pace, the price, and the perception of the brand. Wise retailers never rest on their laurels. They are always shopping for ideas on how to improve and differentiate the offer at every touch point to meet the customer's needs better than anyone else and to gain each customer's loyalty at a time when loyalty can be cheap. With this blog, I hope that we might provide a hub for discussion around what unifies retail and how technology supports both the retailer and customer experience. Despite the competitive nature of this market, we hope that this will provide an opportunity to share experiences and lessons learnt with a view that knowledge can only help this industry to grow and develop. At Oracle we've been supporting retailers for many years. Many of us have worked within retail organisations all over the world, myself included. With this in mind, I don't feel it is too bold a statement to say that Oracle understands retail. We wouldn't be so heavily integrated in some of the biggest and most well-known names in retail if we didn't. With this blog, we intend to create a community of international retailers that can exchange ideas and experiences, debate collective challenges and drive a better understanding of this continually evolving industry. Events such as the World Retail Congress and NRF's Big Show bring enormous value to the retail industry providing platforms for discussion and learning but they happen once a year. We wanted to create a platform for discussion on a different level and that like retail, is always on. We hope not only to bring commitment to being not only the infrastructure that brings all of their systems together within a retail business, but an infrastructure that supports the industry internationally to grow and flourish through creating a platform for networking, discussion, creativity, vision and strategy. Please feel free to ask questions or comment using the comments functionality.  You might also want to visit our other Oracle Retail social media sites: Facebook - http://www.facebook.com/oracleretail YouTube - http://www.youtube.com/user/oracleretail Twitter - http://twitter.com/#!/oracleretailInsight-Driven Retailing Blog - http://blogs.oracle.com/retail/

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  • Java EE 6 Pocket Guide from O'Reilly - Now Available in Paperback and Kindle Edition

    - by arungupta
    Hot off the press ... Java EE 6 Pocket Guide from 'OReilly Media is now available in Paperback and Kindle Edition. Here are the book details: Release Date: Sep 21, 2012 Language: English Pages: 208 Print ISBN: 978-1-4493-3668-4 | ISBN 10:1-4493-3668-X Ebook ISBN:978-1-4493-3667-7 | ISBN 10:1-4493-3667-1 The book provides a comprehensive summary of the Java EE 6 platform. Main features of different technologies from the platform are explained and accompanied by tons of samples. A chapter is dedicated to Managed Beans, Servlets, Java Persistence API, Enterprise JavaBeans, Contexts and Dependency Injection, JavaServer Faces, SOAP-Based Web Services, RESTful Web Services, Java Message Service, and Bean Validation in that format. Many thanks to Markus Eisele, John Yeary, and Bert Ertman for reviewing and providing valuable comments. This book was not possible without their extensive feedback! This book was mostly written by compiling my blogs, material from 2-day workshops, and several hands-on workshops around the world. The interactions with users of different technologies and whiteboard discussions with different specification leads helped me understand the technology better. Many thanks to them for helping me be a better user! The long international flights during my travel around the world proved extremely useful for authoring the content. No phone, no email, no IM, food served on the table, power outlet = a perfect recipe for authoring ;-) Markus wrote a detailed review of the book. He was one of the manuscript reviewers of the book as well and provided valuable guidance. Some excerpts from his blog: It covers the basics you need to know of Java EE 6 and gives good examples of all relevant parts. ... This is a pocket guide which is comprehensively written. I could follow all examples and it was a good read overall. No complicated constructs and clear writing. ... GO GET IT! It is the only book you probably will need about Java EE 6! It is comprehensive, wonderfully written and covers everything you need in your daily work. It is not a complete reference but provides a great shortcut to the things you need to know. To me it is a good beginners guide and also works as a companion for advanced users. Here is the first tweet feedback ... Jeff West was super prompt to place the first pre-order of my book, pretty much the hour it was announced. Thank you Jeff! @mike_neck posted the very first tweet about the book, thanks for that! The book is now available in Paperback and Kindle Edition from the following websites: O'Reilly Media (Ebook, Print & Ebook, Print) Amazon.com (Kindle Edition and Paperback) Barnes and Noble Overstock (1% off Amazon) Buy.com Booktopia.com Tower Books Angus & Robertson Shopping.com Here is how I can use your help: Help spread the word about the book If you bought a Paperback or downloaded Kindle Edition, then post your review here. If you have not bought, then you can buy it at amazon.com and multiple other websites mentioned above. If you are coming to JavaOne, you'll have an opportunity to get a free copy at O'Reilly's booth on Monday (October 1) from 2-3pm. And you can always buy it from the JavaOne Bookstore. I hope you enjoy reading it and learn something new from it or hone your existing skills. As always, looking forward to your feedback!

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  • Elegance, thy Name is jQuery

    - by SGWellens
    So, I'm browsing though some questions over on the Stack Overflow website and I found a good jQuery question just a few minutes old. Here is a link to it. It was a tough question; I knew that by answering it, I could learn new stuff and reinforce what I already knew: Reading is good, doing is better. Maybe I could help someone in the process too. I cut and pasted the HTML from the question into my Visual Studio IDE and went back to Stack Overflow to reread the question. Dang, someone had already answered it! And it was a great answer. I never even had a chance to start analyzing the issue. Now I know what a one-legged man feels like in an ass-kicking contest. Nevertheless, since the question and answer were so interesting, I decided to dissect them and learn as much as possible. The HTML consisted of some divs separated by h3 headings.  Note the elements are laid out sequentially with no programmatic grouping: <h3 class="heading">Heading 1</h3> <div>Content</div> <div>More content</div> <div>Even more content</div><h3 class="heading">Heading 2</h3> <div>some content</div> <div>some more content</div><h3 class="heading">Heading 3</h3> <div>other content</div></form></body>  The requirement was to wrap a div around each h3 heading and the subsequent divs grouping them into sections. Why? I don't know, I suppose if you screen-scrapped some HTML from another site, you might want to reformat it before displaying it on your own. Anyways… Here is the marvelously, succinct posted answer: $('.heading').each(function(){ $(this).nextUntil('.heading').andSelf().wrapAll('<div class="section">');}); I was familiar with all the parts except for nextUntil and andSelf. But, I'll analyze the whole answer for completeness. I'll do this by rewriting the posted answer in a different style and adding a boat-load of comments: function Test(){ // $Sections is a jQuery object and it will contain three elements var $Sections = $('.heading'); // use each to iterate over each of the three elements $Sections.each(function () { // $this is a jquery object containing the current element // being iterated var $this = $(this); // nextUntil gets the following sibling elements until it reaches // an element with the CSS class 'heading' // andSelf adds in the source element (this) to the collection $this = $this.nextUntil('.heading').andSelf(); // wrap the elements with a div $this.wrapAll('<div class="section" >'); });}  The code here doesn't look nearly as concise and elegant as the original answer. However, unless you and your staff are jQuery masters, during development it really helps to work through algorithms step by step. You can step through this code in the debugger and examine the jQuery objects to make sure one step is working before proceeding on to the next. It's much easier to debug and troubleshoot when each logical coding step is a separate line of code. Note: You may think the original code runs much faster than this version. However, the time difference is trivial: Not enough to worry about: Less than 1 millisecond (tested in IE and FF). Note: You may want to jam everything into one line because it results in less traffic being sent to the client. That is true. However, most Internet servers now compress HTML and JavaScript by stripping out comments and white space (go to Bing or Google and view the source). This feature should be enabled on your server: Let the server compress your code, you don't need to do it. Free Career Advice: Creating maintainable code is Job One—Maximum Priority—The Prime Directive. If you find yourself suddenly transferred to customer support, it may be that the code you are writing is not as readable as it could be and not as readable as it should be. Moving on… I created a CSS class to enhance the results: .section{ background-color: yellow; border: 2px solid black; margin: 5px;} Here is the rendered output before:   …and after the jQuery code runs.   Pretty Cool! But, while playing with this code, the logic of nextUntil began to bother me: What happens in the last section? What stops elements from being collected since there are no more elements with the .heading class? The answer is nothing.  In this case it stopped collecting elements because it was at the end of the page.  But what if there were additional HTML elements? I added an anchor tag and another div to the HTML: <h3 class="heading">Heading 1</h3> <div>Content</div> <div>More content</div> <div>Even more content</div><h3 class="heading">Heading 2</h3> <div>some content</div> <div>some more content</div><h3 class="heading">Heading 3</h3> <div>other content</div><a>this is a link</a><div>unrelated div</div> </form></body> The code as-is will include both the anchor and the unrelated div. This isn't what we want.   My first attempt to correct this used the filter parameter of the nextUntil function: nextUntil('.heading', 'div')  This will only collect div elements. But it merely skipped the anchor tag and it still collected the unrelated div:   The problem is we need a way to tell the nextUntil function when to stop. CSS selectors to the rescue! nextUntil('.heading, a')  This tells nextUntil to stop collecting elements when it gets to an element with a .heading class OR when it gets to an anchor tag. In this case it solved the problem. FYI: The comma operator in a CSS selector allows multiple criteria.   Bingo! One final note, we could have broken the code down even more: We could have replaced the andSelf function here: $this = $this.nextUntil('.heading, a').andSelf(); With this: // get all the following siblings and then add the current item$this = $this.nextUntil('.heading, a');$this.add(this);  But in this case, the andSelf function reads real nice. In my opinion. Here's a link to a jsFiddle if you want to play with it. I hope someone finds this useful Steve Wellens CodeProject

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  • What are Information Centers?

    - by user12244613
    Information Centers are similar to product pages in the Oracle Sun System Handbook Many customers like the Oracle Sun System Handbook concept of a home page with all the product attributes, troubleshooting etc. access from a single home page. This concept is now available for a range of Oracle Solaris, Systems, and Storage products. The Information Center for each product covers areas such as: Overview, Hot Topics, Patching and Maintenance. The Information Center pages are dynamically generated each night to ensure the latest content is available to you. Here are the top Solaris, Systems, and Storage Information Centers: Oracle Explorer Data Collector Oracle Solaris 10 Live Upgrade Oracle Solaris 11 Booting Information Center Oracle Solaris 11 Desktop and Graphics Information Center Oracle Solaris 11 Image Packaging System (IPS) Information Center Oracle Solaris 11 Installation Information Center Oracle Solaris 11 Product Information Center Oracle Solaris 11 Security Information Center Oracle Solaris 11 System Administration Information Center Oracle Solaris 11 Zones Information Center Oracle Solaris Crash Analysis Tool(SCAT) - Information Center Oracle Solaris Cluster Information Center Oracle Solaris Internet Protocol Multipathing (IPMP) Information Center Oracle Solaris Live Upgrade Information Center Oracle Solaris ZFS Information Center Oracle Solaris Zones Information Center CMT T1000/T2000 and Netra T2000 CMT T5120/T5120/T5140/T5220/T5240/T5440 Systems M3000/M4000/M5000/M8000/M9000-32/M9000-64 Management and Diagnostic Tools for Oracle Sun Systems Netra CT410/810 and Netra CT900 Network-Attached Storage (NAS) Oracle Explorer Data Collector Oracle VM Server for SPARC (LDoms) Pillar Axiom 600 SL3000 Tape Library Sun Disk Storage Patching and Updates Sun Fire 3800/4800/4810/6800/E2900/E4900/E6900/V1280 - Netra 1280/1290 Sun Fire 12K/15K/E20K/E25K Sun Fire X4270 M2 Server Sun x86 Servers T3 and T4 Systems Tape Domain Firmware V210/V240/V440/V215/V245/V445 Servers VSM (VTSS/VLE/VTCS)

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